Bob has a public RSA key (n = 77, e = 13). He sends Alice a message m.pdf
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Bob has a public RSA key (n = 77, e = 13). He sends Alice a message m and the digital signature s of the message. The message and signature that Alice receives is (m = 3, s = 5). Should Alice accept the message as genuine or not? You must give justification for your answer. Solution she can accept the message as genuine but only after she decrypt the message. If Alice and Bob wish to communicate, Alice sends Bob her public key and Bob gives his public key to Alice. Alice then encrypts her message to Bob with Bob’s public key, knowing that only Bob, the possessor of Bob’s private key, can decrypt the message. Likewise, Bob encrypts his messages to Alice with Alice’s public key. Public keys may be stored in a database or some well- known repository so that the keys do not have to be transmitted. Not only does public key cryptography solve key distribution, it also solves the problem of having [n(n-1)]/2 keys for n users. Now we only need 2n keys (n public and n private)..
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![Bob has a public RSA key (n = 77, e = 13). He sends Alice a message m and the digital
signature s of the message. The message and signature that Alice receives is (m = 3, s = 5).
Should Alice accept the message as genuine or not? You must give justification for your answer.
Solution
she can accept the message as genuine but only after she decrypt the message.
If Alice and Bob wish to communicate, Alice sends Bob her public key and Bob gives his public
key to Alice. Alice then encrypts her message to Bob with Bob’s public key, knowing that only
Bob, the possessor of Bob’s private key, can decrypt the message. Likewise, Bob encrypts his
messages to Alice with Alice’s public key. Public keys may be stored in a database or some well-
known repository so that the keys do not have to be transmitted. Not only does public key
cryptography solve key distribution, it also solves the problem of having [n(n-1)]/2 keys for n
users. Now we only need 2n keys (n public and n private).](https://image.slidesharecdn.com/bobhasapublicrsakeyn77e13-230707053039-9ef41c80/85/Bob-has-a-public-RSA-key-n-77-e-13-He-sends-Alice-a-message-m-pdf-1-320.jpg)
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RSA cryptosytem Alice and Bob set up an RSA cryptosystem Bob choose.pdf
RSA cryptosytem Alice and Bob set up an RSA cryptosystem: Bob chooses the modulus 3131
and an encrypting exponent e = 7, and sends Alice the pair (m, e) = (3131, 7). Alice takes a two-
letter message, turns it into a four-digit number by replacing each letter by its place in the
alphabet (so A = 01, Z = 26), and sends Bob c = 1502. Bob knows that the decrypting exponent d
= 2143, so in order to find Alice\'s message, he needs to find 1502^2143 (mod 3131) Solve
Bob\'s problem in the following way: using that 3131 = 31 middot 101, reduce the problem to
that of finding two much smaller modular exponentiation problems. Then solve both problems.
Then solve a pair of congruences, one modulo 31 and one modulo 101, to find Alice\'s message.
Solution
Alice generates her RSA keys by selecting two primes: p=11 and q=13. The
modulusn=p×q=143. The totient of n (n)=(p1)x(q1)=120. She chooses 7 for her RSA public keye
and calculates her RSA private key using the Extended Euclidean Algorithm which gives her
103.
Bob wants to send Alice an encrypted message M so he obtains her RSA public key (n,e) which
in this example is (143, 7). His plaintext message is just the number 9 and is encrypted into
ciphertext C as follows:
Me mod n = 97 mod 143 = 48 = C
When Alice receives Bob’s message she decrypts it by using her RSA private key (d, n) as
follows:
Cd mod n = 48103 mod 143 = 9 = M
To use RSA keys to digitally sign a message, Alice would create a hash or message digest of her
message to Bob, encrypt the hash value with her RSA private key and add it to the message. Bob
can then verify that the message has been sent by Alice and has not been altered by decrypting
the hash value with her public key. If this value matches the hash of the original message, then
only Alice could have sent it (authentication and non-repudiation) and the message is exactly as
she wrote it (integrity). Alice could, of course, encrypt her message with Bob’s RSA public key
(confidentiality) before sending it to Bob. A digital certificate contains information that identifies
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CS283-PublicKey.ppt
This document provides an overview of public key cryptography. It introduces the concepts of public and private key pairs using the mailbox analogy. The key requirements for a public key scheme are that encryption and decryption must be easy with the appropriate key, but deriving the private key from the public key or decrypting without the private key must be computationally infeasible. Diffie-Hellman key exchange and RSA are described as examples of public key cryptography. Potential attacks like man-in-the-middle are also discussed.
CS283-PublicKey.ppt
This document provides an overview of public key cryptography. It introduces the concepts of public and private key pairs using the mailbox analogy. The key requirements for a public key scheme are that encryption and decryption must be easy with the appropriate key, but deriving the private key from the public key or decrypting without the private key must be computationally infeasible. Diffie-Hellman key exchange and RSA are described as examples of public key cryptography schemes. Potential attacks like man-in-the-middle are also discussed.
Describe in detail a man-in-the-middle attack on the Diffie-Hellman ke.docx
Describe in detail a man-in-the-middle attack on the Diffie-Hellman key-exchange protocol whereby the adversary ends up sharing a key k A with Alice and a different key k B with Bob, and Alice and Bob cannot detect that anything has gone wrong.
What happens if Alice and Bob try to detect the presence of a man-in-the-middle adversary by sending each other (encrypted) questions that only the other party would know how to answer?
Solution
In man-in-the-middle attack, an opponent Eve intercepts Alice\'s public key K A and sends her own public key as K A to Bob. When Bob transmits his public key K B , Eve substitutes it with her own and sends it as K B to Alice. Eve and Alice thus agree on one shared key and Eve and Bob agree on another shared key. After this exchange, Eve simply decrypts any messages sent out by Alice or Bob, and then reads and possibly modifies them before re-encrypting with the appropriate key and transmitting them to the other party. This vulnerability is present because Diffie-Hellman key exchange does not authenticate the participants. The man-in-the-middle attack may be prevented by using digital signatures and other cryptographic schemes.
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Solution
Folivores are characterized by small incisors and large premolar with sharp crest
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why do Private offices have a high sensible heat ratio?
Solution
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Recommended
RSA cryptosytem Alice and Bob set up an RSA cryptosystem Bob choose.pdf
RSA cryptosytem Alice and Bob set up an RSA cryptosystem: Bob chooses the modulus 3131
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Solution
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modulusn=p×q=143. The totient of n (n)=(p1)x(q1)=120. She chooses 7 for her RSA public keye
and calculates her RSA private key using the Extended Euclidean Algorithm which gives her
103.
Bob wants to send Alice an encrypted message M so he obtains her RSA public key (n,e) which
in this example is (143, 7). His plaintext message is just the number 9 and is encrypted into
ciphertext C as follows:
Me mod n = 97 mod 143 = 48 = C
When Alice receives Bob’s message she decrypts it by using her RSA private key (d, n) as
follows:
Cd mod n = 48103 mod 143 = 9 = M
To use RSA keys to digitally sign a message, Alice would create a hash or message digest of her
message to Bob, encrypt the hash value with her RSA private key and add it to the message. Bob
can then verify that the message has been sent by Alice and has not been altered by decrypting
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only Alice could have sent it (authentication and non-repudiation) and the message is exactly as
she wrote it (integrity). Alice could, of course, encrypt her message with Bob’s RSA public key
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This document provides an overview of public key cryptography. It introduces the concepts of public and private key pairs using the mailbox analogy. The key requirements for a public key scheme are that encryption and decryption must be easy with the appropriate key, but deriving the private key from the public key or decrypting without the private key must be computationally infeasible. Diffie-Hellman key exchange and RSA are described as examples of public key cryptography. Potential attacks like man-in-the-middle are also discussed.
CS283-PublicKey.ppt
This document provides an overview of public key cryptography. It introduces the concepts of public and private key pairs using the mailbox analogy. The key requirements for a public key scheme are that encryption and decryption must be easy with the appropriate key, but deriving the private key from the public key or decrypting without the private key must be computationally infeasible. Diffie-Hellman key exchange and RSA are described as examples of public key cryptography schemes. Potential attacks like man-in-the-middle are also discussed.
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Describe in detail a man-in-the-middle attack on the Diffie-Hellman key-exchange protocol whereby the adversary ends up sharing a key k A with Alice and a different key k B with Bob, and Alice and Bob cannot detect that anything has gone wrong.
What happens if Alice and Bob try to detect the presence of a man-in-the-middle adversary by sending each other (encrypted) questions that only the other party would know how to answer?
Solution
In man-in-the-middle attack, an opponent Eve intercepts Alice\'s public key K A and sends her own public key as K A to Bob. When Bob transmits his public key K B , Eve substitutes it with her own and sends it as K B to Alice. Eve and Alice thus agree on one shared key and Eve and Bob agree on another shared key. After this exchange, Eve simply decrypts any messages sent out by Alice or Bob, and then reads and possibly modifies them before re-encrypting with the appropriate key and transmitting them to the other party. This vulnerability is present because Diffie-Hellman key exchange does not authenticate the participants. The man-in-the-middle attack may be prevented by using digital signatures and other cryptographic schemes.
Bob to encrypt a message so that only Alice will be able to decrypt it, with no prior communication between them other than Bob having trusted knowledge of Alice\'s public key. Alice\'s public key is
g K A mod p, g,p. . To send her a message, Bob chooses a random K B and then sends Alice g K B mod p
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.
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2) Specifically, the document describes a protocol where Alice and Bob share many entangled photon pairs and randomly measure each photon in either the X or Z basis. Their measurement outcomes will be perfectly correlated when measured in the same basis but random when measured in different bases.
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________ are characterized by small incisors and large premolars with sharp crests.
a. Insectivores
b. Folivores
c. Faunivores
d. Frugivores
Solution
Folivores are characterized by small incisors and large premolar with sharp crest
Because they are basically herbivores taking cellulose rich leafs and plant stems so they need
proper chewing for digesting that.
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3) The average of all grades in the file
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Solution
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What general environmental condition is represented by this assemblag.pdf
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energy near shore depositional environment . Pebbly sand stone also contains high energy
environments of the shore face. The cross bed sandstone which is deposited in the upper part also
is deposited by high energy environment like storm.
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wackestone - floatstone are deposits of low energy below wave base. Limestone composed of
float stone to rug stone deposition indicates its transition from low to high energy deposition.
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c. Limestone contains calcium carbonate and it gives the property to the rock for identification. It
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of organisms found in this. For the toolbar press ALT +F10 (PC) or ALT + FN + F10 (Mac)
Solution
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because many have a deep, or excavated, oral groove. Unlike other protists, excavates have
atypical, greatly modified mitochondria. Many excavates are endosymbionts and live in anoxic
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inclusion of these organisms inti single superfamily is somewhat controversial because their
relationship to one another are uncertain. Additional studies will be needed to determine if the
excavates as currently presented are monophyletic group.
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Diplomonads are excavates that have one or two nuclei, no functional mitochondria, no Golgi
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Giardia lacks functional mitochondria, although it contains certain genes that code for proteins
associated with mitochondria in other organism. Giardia also has reduced structures that
somewhat resembles mitochoindria.
Giardia intestinalis is a major cause of water-borne diarrhea through the world. Giardia is
eliminated as a resistant cyst in the feces of many vertebrate animals. These cysts are common
contaminant in untreated drinking water.
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Parabasilids are anaerobic, flagellated excavates that often live in animals. Trichonymphs and
trichomonads are examples of parabasilids. Trichonymphs, which have hundreds of flagella, live
in the guts of termites and wood-eating cockroaches. The trichonymphs rely on endosymbiotic
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Answer:
True:
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To what extent do GUI editors generally allow developers to modify HTML code manually?
Solution
GUI HTML editors allow you to create Web pages. In most cases, you enter and edit text similar
to the way you would in a word-processing application. Images, tables, links,bookmarks and so
forth can be created easily because the application writes the HTML code automatically
GUI Web site management editors provide both Web page creation and site management
functionality. They allow teams of designers and developers to work in an integrated
environment to design, build and manage Web site and Internet applications. In addition to
creating the Web pages, team members can manage the entire Web site with this type of
application, both during and after development. Site management includes task automation and
workflow integration with other programs (such as Microsoft Office and Web applications) in a
production environment.
GUI HTML editors such as KompoZer, Sea Monkey Composer, Dreamweaver and
Expression Web present the following advantages for Web page authors:
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• GUI editors place code into files for you, which enables you to create pages quickly by simply
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• Most GUI editors allow you to modify your code manually At the time of this writing, HTML5
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template was required in KompoZer to produce the HTML5 declaration. Once the code is
complete, it must be validated and updated as needed.
The diagram shows a cell during the anaphase stage of mitosis. How wo.pdf
The diagram shows a cell during the anaphase stage of mitosis. How would this diagram be
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would still have two chromatids together. The chromosomes would look the same as in mitosis.
You would be able to see DNA in the chromosomes during meiosis. Homologous chromosomes
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Solution
Answer is A
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Thus giving 4 daughter cells..
Thank you for your helpful answer! Consider the following meth.pdf
Thank you for your helpful answer!
Consider the following method: bool hasDuplicates(int V[], int n) {for (int i=0; i
Solution
1)
So we can see that the total number of times the sequence of statements executes is:
N + N-1 + N-2 + ... + 3 + 2 + 1. the total is O(N2).
2)
Use count array to store frequency of each element in an array
traverse the entire array and find maximum element
create an array with size of maximum element and instantiate to zero
now traverse count array and see if it has value 2 for any index
if it has then array has duplicates
else no
O(n) complexityValue of iNumber of iterations of inner loop0N1N-12N-2......N-22N-11.
State whether the following statement is true or false The graph of t.pdf
State whether the following statement is true or false The graph of the reciprocal function f(x)
=1/x has a break and is composed of two distinct branches Choose the correct answer below
True False
Solution
The function : y = 1/x
x<0 : y = -1/x
x> 0 ; y = 1/x
The function is not defined at x= 0
so, there are two distinct functions
Option True.
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Should Maria’s ethical responsibility to Linda lead her to keep these concerns to herself and
allow the recommendation to stand?
Solution
Ethical responsibility mainly is used to follow the right path. Here, the actions of an individual
must benefit the whole society. So a person should speak up for the right thing. Every individual
is accountable for fulfilling their civic duty, even small business owners also have ethical
responsibilities to their employees, customers and society as a whole.
So if Maria feels there is something that would affect their customers, environment, business and
society as a whole, she should not keep her concerns to herself.
Revolution in Egypt With 83 million people, Egypt is the most populou.pdf
Revolution in Egypt With 83 million people, Egypt is the most populous Arab state. On the face
of it, c Egypt made significant economic progress during the 2000s. In 2004, the gov- emment of
Hosni Mubarak enacted a series of economic reforms that included calling for Mo and he step
that included reins of pow to dem trade liberalization, cuts in import tarifs, tax cuts, deregulation,
and changes in tion to dem on a s investment regulations that allowed for more foreign direct
investment in the voted on a Egyptian economy. As a consequence, economic growth, which had
been in way for the the 2 to 4 percent range during the early 2000s, accelerated to around 7 per-
Egyptians cent a year. Exports almost tripled, from $9 billion in 2004 to more than $25 bi Doest
lion by 2010. Foreign direct investment increased from $4 billion in 2004 to state with $11
billion in 2008, while unemployment fell from 11 percent to 8 percent. erate Isla By 2008, Egypt
seemed to be displaying many of the features of other country emerging economies. On Cairo\'s
outskirts, clusters of construction cranes Mohame could be seen where gleaming new offices
were being built for companies ment st such as Microsoft, Oracle, and Vodafone. Highways
were being con- was as structed, hypermarkets were opening their doors, and sales of private
cars on fore quadrupled between 2004 and 2008. Things seemed to be improving. ich But
appearances can be deceiving. Underneath the surface, Egypt had Foreig major economic and
political problems. Inflation, long a concern, remained fast. high at 12.8 percent. As the global
economic crisis took hold in 2008-2009, nomi Egypt saw many of its growth drivers slow. In
2008, tourism brought some subsi $11 billion into the country, accounting for 8.5 percent of
gross domestic not a product, but it fell sharply in 2009 and 2010. Remittances from Egyptian
budg expatriates working overseas, which amounted to $8.5 billion in 2008, de- cess clined
sharply as construction projects in the Gulf, where many of them the worked, were cut back or
shut down. Earnings from the Suez Canal, which tha stood at $5.2 billion in 2008, declined by 25
percent in 2009 as the volume ha of world shipping slumped in the wake of the global economic
slowdown. ba the rich and the poor. Some 44 percent of Egyptians are classified as poor or
extremely poor, the average wage is less than $100 a month. Some 2.6 million people are so
destitute that their entire income cannot cover their basic food needs ru his So
Solution
The Egyptian economy is dependent on the Egypt\'s political stability. Egypt is still governed by
a interim government.
Unemployment rate is high in Egypt. The current government should first make changes in the
economy to decrease unemployment rate. Many wealthy business men have left the country. The
interim government have to stabilise the economy to win back the confidence of egytian
entrepreneur class. This will positively affect the employment rate and will creat.
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Question No. 1
What updates have been brought by snmpv2 to SNMPv1 communication architecture? [2 marks]
Question No. 2
How SNMPv3 enhances security compared to SNMPv2? [2 marks]
Question No. 3
Define RMON [1 mark]
What are the benefits of RMON ? [1 mark]
Question No. 4
As a network manager, you are responsible for the operation of a network. You notice heavy
traffic in a host that is on a TCP/IP network and want to find out the details:
What basic network monitoring tool(s) would you use? [1 mark]
What would you look for in your results? [1 mark]
Question No. 5
What is the difference between nslookup & dig? [1 marks]
Question No. 5
Install wireshark and capture IP packets on your Ethernet interface.
Put a screenshot of IP packets captured on your device. [1 marks]
Analyze their headers and contents. [2 marks] (1 mark bonus for
Solution
Answer 1.
SNMPv1 (Simple Network Management Protocol) v1 was designed as a short term solution to
allow management of TCP/IP - based internets. Although it was simple there were some major
issues in SNMPv1, viz Expressiveness of MIB definitions, performance and security issues.
Some key differences brought in SNMPv2 are:
Answer 2:
The newer version of SNMP, i.e. SNMPv3 was released to cover some of the security issues that
plagued SNMPv2. SNMPv3 framework augments the original SNMP and SNMPv2
specifications with additional security and administration capabilities. Security and remote
configuration capabilities were added in the newer version. The SNMPv3 architecture introduces
the User-based Security Model (USM) for message security and View-based Access Control
Model(VACM) for access control. The architecture supports the concurrent use of different
security, access control and message processing protocols. SNMPv2 also introduces the ability to
dynamically
configure the SNMP agent using SNMP SET commands against the MIB objects that represent
the agent\'s configuration. The dynamic configuration support enables addition, deletion and
modification of configuration entries locally or remotely. The latest architecture incorporates an
SNMP context engine ID to encode and decode SNMP contexts.
In short, SNMPv3 provides three layers of security. The highest level is with authentication and
privacy. The second or middle level is with authentication and no privacy and the bottom level is
without authentication and privacy.
Answer 3:
Remote Monitoring (RMON) is a standard specification that facilitates the monitoring ,
analyzing and troubleshooting of network operational activities through the use of remote
devices known as monitors or probes.
RMON provides the benefits of standarazation and improves efficiency by allowing you to
remain at one workstation and collect information from widely dispersed LAN segments or
VLANs. RMON also allows proactive management and reduces the traffic load.
Answer 4:
Microsoft network monitor and CapsaFree are a few of the basic tools one can use for in this
case. Main features of MNM i.
President Truman belleved that an increase in a na development, which.pdf
President Truman belleved that an increase in a na development, which typically includes the
exploitation of tion\'s ii means that a nation is moving toward economic . levels of consumption;
immigrant laborers O levels of consumption; natural resources O standard of living; immigrant
laborers Ostandard of living; natural resources
Solution
President Truman believed that an increase in nation\'s levels of consumption means that a nation
is moving towards economic development, which typically includes the exploitation of natural
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Pretend you have been asked by the president of the united statesto chair a special task force that
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Relating television back to cognitive development, give two examples of how young children
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Solution
individuals suffering from social isolation can employ television to create what is termed a
parasocial or faux relationship with characters from their favorite television shows and movies as
a way of deflecting feelings of loneliness and social deprivation.Just as an individual would
spend time with a real person sharing opinions and thoughts, pseudo-relationships are formed
with TV characters by becoming personally invested in their lives as if they were a close friend
so that the individual can satiate the human desire to form meaningful relationships and establish
themselves in society. The pleasurable effects of television may be likened to an addictive
activity, producing \"momentary pleasure but long-term misery and regret.\"When a person plays
video games or watches TV, the basal ganglia portion of the brain becomes very active and
dopamine is released.Release of high amounts of dopamine reduces the amount of the
neurotransmitter available for control of movement, perception of pain and pleasure and
formation of feelings.Watching television starting at a young age can profoundly effect
children\'s development. These effects include obesity, language delays, and learning disabilities.
Physical inactivity while viewing TV reduces necessary exercise and leads to over-eating.
Language delays occurs when a child doesn\'t interact with others. Children learn language best
from live interaction with parents or other individuals. Resulting learning disabilities from over-
watching TV include ADHD, concentration problems and even reduction of IQ. Children who
watch too much television can thus have difficulties starting school because they aren\'t
interested in their teachers. Children should watch a maximum of 2 hours daily if any television.
At the same time, television can help young people discover where they fit into society, develop
closer relationships with peers and family, and teach them to understand complex social aspects
of communication.
Recommendations are:
Give a specific time,ie, like 2 hours/day for television watching and engage them in oter leisures
such as sports,arts,etc.The type of shows must be informative,such as about new
hobbies,improvements in science and technology and new discoveries or about great
people.Never go for anything like dating shows or something explicit children..
Please explain in detail. Why cant Salmonella be infected by lambd.pdf
Please explain in detail. Why can\'t Salmonella be infected by lambda phage? Why can\'t
salmonella be successfully transfected using lambda DNA?
Solution
Lambda phage is a bacteriophage or bacteria virus which is known to infect bacteria especially
Escherichia coli hence, sometimes also called as coliphage.This virus is used in recombinat DNA
technology for transferring special genes or you can say that as a vector. To infect a bacterium a
virus needs to:
1) interact first with the cell surface receptors which are different in different species thus,
making coliphage entry difficult inside the Salmonella species.
2) Multiplication of virus genome inside the bacteria is another factor for a virus to cause
infection in a bacterium. To multiply inside bacteria, phage join its nucleic acid with host\'s
nucleic acid, this stage of infection is called prophage. To attach its nucleic acid a phage must
recognise an attachment site called att site in host\'s genome which varies among different
genera. At this stage genetic exchange takes place hence, it is difficult too transfect Salmonella
with a coliphage.
However, Phage P22 can transfect Salmonella because the bacterium has specific att sites for
P22. Also, Transduction i.e. transfer of nucleic acid by a bacteriophage to bacteria was first
discovered in P22 infecting Salmonella. Salmonella species can be made competitive(
susceptible to genetic exchange by transfection) for coliphage by altering its genomic structure
using recombinant DNA tools..
Part A Tnsomy 21, or Down syndrome, occurs when there is anormal dplo.pdf
Part A Tnsomy 21, or Down syndrome, occurs when there is anormal dploid deomosomal
complement but one 21 Ahough ave higher (19 vrvna offspring would be expected to have Down
syndrome rboen parents have 0own syndrome? Given the that wen 48 chromosomes nou
chromosome 21) ly to survive oaydevekpront peroenlage ar O An the chadren would be expected
to have Down syndrome o None of surviving offsprang wous be expected to rave Down sydome
o one othe survivrg omsprng would be expected trav Downsyndrome O Two minds of surviving
preg wouldbe easected to have Down syndrome One hall the survning onspring would be
expected lo have Down syndoome Incorrect: Try Again: 2 attempts remaining a O Ask me
anything
Solution
one third of the surviving offspring will have Downs Syndrome
Since its inheritance is autosomal, so all children will not have Downzs syndrome. One which
will inherit both the copies of trisomy from both parents will have the syndrome.
Part 1 List the basic steps in securing an operating system. Assume.pdf
Part 1: List the basic steps in securing an operating system. Assume that the O.S. is being
installed for the first time on new hardware.
Part 2: Name and briefly describe two ways that college students could be recruited into illegal
espionage.
Part 3: Explain the function of the trusted boot function of the trusted platform module (TPM.)
Tell how that is related to the current controversy between Apple and the FBI concerning
encryption. What could the FBI do in the absence of a trusted boot function?
Part 4: Define single loss exposure and annualized risk of occurrence. Explain in your own
words what these have to do with computer security.
Part 5: Explain why it is important to monitor outbound traffic as well as inbound traffic in a
corporate network. Give an example
Solution
Part1:-
There are three things that can enhance operating system security across an enterprise network:
First, provisioning of the servers on the network should be done once in one place, involving the
roughly tens of separate configurations most organizations require. This image, or set of images,
can then be downloaded across the network, with the help of software that automates this process
and eliminates the pain of doing it manually for each server. Moreover, even if you had an
instruction sheet for these key configurations, you wouldn\'t want local administrators to access
these key configurations for each server, which is very dangerous. The best way to do it is once
and for all.
Once the network has been provisioned, administrators need to be able to verify policy
compliance, which defines user access rights and ensures that all configurations are correct. An
agent running on the network or remotely can monitor each server continuously, and such
monitoring wouldn\'t interfere with normal operations.
Second, account management needs to be centralized to control access to the network and to
ensure that users have appropriate access to enterprise resources. Policies, rules and intelligence
should be located in one place—not on each box—and should be pushed out from there to
provision user systems with correct IDs and permissions. An ID life cycle manager can be used
to automate this process and reduce the pain of doing this manually.
Third, the operating system should be configured so that it can be used to monitor activity on the
network easily and efficiently—revealing who is and isn\'t making connections, as well as
pointing out potential security events coming out of the operating system. Administrators can use
a central dashboard that monitors these events in real time and alerts them to serious problems
based on preset correlations and filtering. Just as important, this monitoring system should be set
up so that administrators aren\'t overwhelmed by routine events that don\'t jeopardize network
security.
Part2:-
Two ways that college students could be recruited into illegal espionage:
First, the students may be trend before they sending out to the foreign .
John is 35 years old and recently married with Eva. After they got m.pdf
John is 35 years old and recently married with Eva. After they got married, they are considering
to have their first child in 2 years and save for a deposit to buy an apartment. Which lifecycle
stage is John likely in?
Select one:
a. Wealth accumulation phase
b. Early family formation
c. Approaching retirement
d. Post retirement
e. Saving versus consumption phase
Solution
Answer :- Option e). Saving versus consumption phase.
Explanation :- John is likely in \"Saving versus consumption phase\" of lifecycle in the above
given question..
List three characteristics that an Intrusion Prevention System (IPS).pdf
List three characteristics that an Intrusion Prevention System (IPS) could use in identifying an
intruder to a network. Do you feel these systems are effective?
Solution
Intrusion Prevention System is a control device of security technology where it has the capacity
which it offers the security to all the system levels. That is, it provides the security from the
operating system to network data packets. When the data is transferred by the user, the IPS offers
some rules for the network traffic for alerting the user system or the network administrators by
giving alert that there will be a suspicious in the traffic. Then the administrator can take the
action on the suspicious and user can be attentive.
If there are any potential attacks then IPS makes attempts to stop it. IPS has the capacity that it
prevents the known intrusion signatures, and also some unknown attacks.
Yes, it is an effective system to avoid the attacks and protects the system in all levels by
providing the security..
Interpret the symbol P(BA) and explain what is meant by the express.pdf
Interpret the symbol P(B|A) and explain what is meant by the expression. What do we know if
P(B|A) is not the same as P(B)?
Solution
P(B | A) = probability of event B when we know that event A happenen, it is also called
conditional probability of B, given A
When P(B|A) is not equal to P(B), we know that B is dependent on A (not independent).
In which disease investigation are important SolutionInvestiga.pdf
In which disease investigation are important?
Solution
Investigation of disease include symptoms of disease , its spread and treatment with measures to
control them.Primary objective of investigation is identify source of disease and measures to
prevent them. Investigation is required in many communicable disease , disease caused by any
kind of poisoning, disease caused by any parasite , infectious disease and disease caused by any
unknown source of present information is not available..
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS Template 2023-2024 by: Irene S. Rueco
Introduction to AI for Nonprofits with Tapp Network
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
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Why is payback and IRR more frequently used than NPV when it comes t.pdf
Why is payback and IRR more frequently used than NPV when it comes to evaluating projects?
Solution
Payback is very simple to understand and cheap to implement and can be done very quickly to
give an idea.
IRR gives return in terms of percentage and management would like to see the returns because
then they are not biased with the size of the project. But NPV is biased with the size of the
project..
What general environmental condition is represented by this assemblag.pdf
What general environmental condition is represented by this assemblage - marine or nonmarine?
(b) Based on the fossil assemblage, describe the energy of each environment (e.g. turbulent wave
environment, calm offshore or lagoon) Shale: Sandstone: Limestone: (c) Which unit shows the
greatest biological diversity?
Solution
b. Shale - Shale is said to be deposited by the lower to outer shelf below wave base under low
energy conditions. Black shale containing fossil plants represents swamp environments.
Sandstone - Siliclastic carbonate sandstone contains deposition from shallow marine with high
energy near shore depositional environment . Pebbly sand stone also contains high energy
environments of the shore face. The cross bed sandstone which is deposited in the upper part also
is deposited by high energy environment like storm.
Limestone - limestone units of packstone - rudstone are high energy deposits whereas
wackestone - floatstone are deposits of low energy below wave base. Limestone composed of
float stone to rug stone deposition indicates its transition from low to high energy deposition.
Sandy lime stone contains deposits of high energy.
c. Limestone contains calcium carbonate and it gives the property to the rock for identification. It
has greater biodiversity compared to other types of rocks..
What are some of the basic features of Excavates Discuss the differe.pdf
What are some of the basic features of Excavates? Discuss the difference among major classes
of organisms found in this. For the toolbar press ALT +F10 (PC) or ALT + FN + F10 (Mac)
Solution
Excavates are a diverse group of unicellular Protists with Flagella.These protists are so named
because many have a deep, or excavated, oral groove. Unlike other protists, excavates have
atypical, greatly modified mitochondria. Many excavates are endosymbionts and live in anoxic
(without oxygen) environment. These excavates do not carry out aerobic respiration; they obtain
energy by the anaerobic pathway of glycolysis (presumably by fermentation).
The representatives protest clades are dipplomonads and parabasalids with the key characters of
two or more flagella; ventral oral (feeding) groove and Euglenoids and trypanosomes with the
key characters of some with plastids; crystalline red in flagella
Example: SEM of Trichomonas vaginalis, a parabasalid.
Currently, excavates include dipomonads, parabasalids, euglenoids, and trypanosomes. The
inclusion of these organisms inti single superfamily is somewhat controversial because their
relationship to one another are uncertain. Additional studies will be needed to determine if the
excavates as currently presented are monophyletic group.
Diplomonads are small mostly parasitic flagellates
Diplomonads are excavates that have one or two nuclei, no functional mitochondria, no Golgi
complex, and up to eight flagella. Example: Giardia is a parasitic diplomonad. Interestingly,
Giardia has two haploid nuclei, each of which contains a complete copy of giardia’s genome.
Giardia lacks functional mitochondria, although it contains certain genes that code for proteins
associated with mitochondria in other organism. Giardia also has reduced structures that
somewhat resembles mitochoindria.
Giardia intestinalis is a major cause of water-borne diarrhea through the world. Giardia is
eliminated as a resistant cyst in the feces of many vertebrate animals. These cysts are common
contaminant in untreated drinking water.
Parabasilids are anaerobic endosymbionts that live in animals
Parabasilids are anaerobic, flagellated excavates that often live in animals. Trichonymphs and
trichomonads are examples of parabasilids. Trichonymphs, which have hundreds of flagella, live
in the guts of termites and wood-eating cockroaches. The trichonymphs rely on endosymbiotic
bacteria to digest cellulose in the wood. The insects, trichonymphs, and bacteria all obtain their
nutrients from this source. This is excellent example of mutualism..
True or False Disulfides are essential for cone-snail venoms acti.pdf
True or False: Disulfides are essential for cone-snail venom\'s activity
Solution
Answer:
True:
Cone snails are marine metazoans mainly they are going to catch they prey by generating toxins
or venoms to inactivate their prey. These venom components are composed of disulfide bonds, in
which hypervariable disulfide-rich structural domains going to inactivate the protein folding in
the prey so that disulfides in venome proteins are essential for cone-snail venom\'s activity.
To what extent do GUI editors generally allow developers to modify H.pdf
To what extent do GUI editors generally allow developers to modify HTML code manually?
Solution
GUI HTML editors allow you to create Web pages. In most cases, you enter and edit text similar
to the way you would in a word-processing application. Images, tables, links,bookmarks and so
forth can be created easily because the application writes the HTML code automatically
GUI Web site management editors provide both Web page creation and site management
functionality. They allow teams of designers and developers to work in an integrated
environment to design, build and manage Web site and Internet applications. In addition to
creating the Web pages, team members can manage the entire Web site with this type of
application, both during and after development. Site management includes task automation and
workflow integration with other programs (such as Microsoft Office and Web applications) in a
production environment.
GUI HTML editors such as KompoZer, Sea Monkey Composer, Dreamweaver and
Expression Web present the following advantages for Web page authors:
• GUI HTML editor to develop Web pages can save you time.
• GUI editors place code into files for you, which enables you to create pages quickly by simply
clicking your mouse.
• Most GUI editors allow you to modify your code manually At the time of this writing, HTML5
was not supported by any open-source GUI or WYSIWYG HTML editors. Instead, an HTML5
template was required in KompoZer to produce the HTML5 declaration. Once the code is
complete, it must be validated and updated as needed.
The diagram shows a cell during the anaphase stage of mitosis. How wo.pdf
The diagram shows a cell during the anaphase stage of mitosis. How would this diagram be
different if it showed anaphase I of meiosis instead of anaphase of mitosis? Each chromosome
would still have two chromatids together. The chromosomes would look the same as in mitosis.
You would be able to see DNA in the chromosomes during meiosis. Homologous chromosomes
would be moving to the same end of the cell.
Solution
Answer is A
Each chromosome still have two chromatids together, which will further divide in anaphase II.
Thus giving 4 daughter cells..
Thank you for your helpful answer! Consider the following meth.pdf
Thank you for your helpful answer!
Consider the following method: bool hasDuplicates(int V[], int n) {for (int i=0; i
Solution
1)
So we can see that the total number of times the sequence of statements executes is:
N + N-1 + N-2 + ... + 3 + 2 + 1. the total is O(N2).
2)
Use count array to store frequency of each element in an array
traverse the entire array and find maximum element
create an array with size of maximum element and instantiate to zero
now traverse count array and see if it has value 2 for any index
if it has then array has duplicates
else no
O(n) complexityValue of iNumber of iterations of inner loop0N1N-12N-2......N-22N-11.
State whether the following statement is true or false The graph of t.pdf
State whether the following statement is true or false The graph of the reciprocal function f(x)
=1/x has a break and is composed of two distinct branches Choose the correct answer below
True False
Solution
The function : y = 1/x
x<0 : y = -1/x
x> 0 ; y = 1/x
The function is not defined at x= 0
so, there are two distinct functions
Option True.
Should Maria’s ethical responsibility to Linda lead her to keep thes.pdf
Should Maria’s ethical responsibility to Linda lead her to keep these concerns to herself and
allow the recommendation to stand?
Solution
Ethical responsibility mainly is used to follow the right path. Here, the actions of an individual
must benefit the whole society. So a person should speak up for the right thing. Every individual
is accountable for fulfilling their civic duty, even small business owners also have ethical
responsibilities to their employees, customers and society as a whole.
So if Maria feels there is something that would affect their customers, environment, business and
society as a whole, she should not keep her concerns to herself.
Revolution in Egypt With 83 million people, Egypt is the most populou.pdf
Revolution in Egypt With 83 million people, Egypt is the most populous Arab state. On the face
of it, c Egypt made significant economic progress during the 2000s. In 2004, the gov- emment of
Hosni Mubarak enacted a series of economic reforms that included calling for Mo and he step
that included reins of pow to dem trade liberalization, cuts in import tarifs, tax cuts, deregulation,
and changes in tion to dem on a s investment regulations that allowed for more foreign direct
investment in the voted on a Egyptian economy. As a consequence, economic growth, which had
been in way for the the 2 to 4 percent range during the early 2000s, accelerated to around 7 per-
Egyptians cent a year. Exports almost tripled, from $9 billion in 2004 to more than $25 bi Doest
lion by 2010. Foreign direct investment increased from $4 billion in 2004 to state with $11
billion in 2008, while unemployment fell from 11 percent to 8 percent. erate Isla By 2008, Egypt
seemed to be displaying many of the features of other country emerging economies. On Cairo\'s
outskirts, clusters of construction cranes Mohame could be seen where gleaming new offices
were being built for companies ment st such as Microsoft, Oracle, and Vodafone. Highways
were being con- was as structed, hypermarkets were opening their doors, and sales of private
cars on fore quadrupled between 2004 and 2008. Things seemed to be improving. ich But
appearances can be deceiving. Underneath the surface, Egypt had Foreig major economic and
political problems. Inflation, long a concern, remained fast. high at 12.8 percent. As the global
economic crisis took hold in 2008-2009, nomi Egypt saw many of its growth drivers slow. In
2008, tourism brought some subsi $11 billion into the country, accounting for 8.5 percent of
gross domestic not a product, but it fell sharply in 2009 and 2010. Remittances from Egyptian
budg expatriates working overseas, which amounted to $8.5 billion in 2008, de- cess clined
sharply as construction projects in the Gulf, where many of them the worked, were cut back or
shut down. Earnings from the Suez Canal, which tha stood at $5.2 billion in 2008, declined by 25
percent in 2009 as the volume ha of world shipping slumped in the wake of the global economic
slowdown. ba the rich and the poor. Some 44 percent of Egyptians are classified as poor or
extremely poor, the average wage is less than $100 a month. Some 2.6 million people are so
destitute that their entire income cannot cover their basic food needs ru his So
Solution
The Egyptian economy is dependent on the Egypt\'s political stability. Egypt is still governed by
a interim government.
Unemployment rate is high in Egypt. The current government should first make changes in the
economy to decrease unemployment rate. Many wealthy business men have left the country. The
interim government have to stabilise the economy to win back the confidence of egytian
entrepreneur class. This will positively affect the employment rate and will creat.
Question No. 1What updates have been brought by snmpv2 to SNMPv1 c.pdf
Question No. 1
What updates have been brought by snmpv2 to SNMPv1 communication architecture? [2 marks]
Question No. 2
How SNMPv3 enhances security compared to SNMPv2? [2 marks]
Question No. 3
Define RMON [1 mark]
What are the benefits of RMON ? [1 mark]
Question No. 4
As a network manager, you are responsible for the operation of a network. You notice heavy
traffic in a host that is on a TCP/IP network and want to find out the details:
What basic network monitoring tool(s) would you use? [1 mark]
What would you look for in your results? [1 mark]
Question No. 5
What is the difference between nslookup & dig? [1 marks]
Question No. 5
Install wireshark and capture IP packets on your Ethernet interface.
Put a screenshot of IP packets captured on your device. [1 marks]
Analyze their headers and contents. [2 marks] (1 mark bonus for
Solution
Answer 1.
SNMPv1 (Simple Network Management Protocol) v1 was designed as a short term solution to
allow management of TCP/IP - based internets. Although it was simple there were some major
issues in SNMPv1, viz Expressiveness of MIB definitions, performance and security issues.
Some key differences brought in SNMPv2 are:
Answer 2:
The newer version of SNMP, i.e. SNMPv3 was released to cover some of the security issues that
plagued SNMPv2. SNMPv3 framework augments the original SNMP and SNMPv2
specifications with additional security and administration capabilities. Security and remote
configuration capabilities were added in the newer version. The SNMPv3 architecture introduces
the User-based Security Model (USM) for message security and View-based Access Control
Model(VACM) for access control. The architecture supports the concurrent use of different
security, access control and message processing protocols. SNMPv2 also introduces the ability to
dynamically
configure the SNMP agent using SNMP SET commands against the MIB objects that represent
the agent\'s configuration. The dynamic configuration support enables addition, deletion and
modification of configuration entries locally or remotely. The latest architecture incorporates an
SNMP context engine ID to encode and decode SNMP contexts.
In short, SNMPv3 provides three layers of security. The highest level is with authentication and
privacy. The second or middle level is with authentication and no privacy and the bottom level is
without authentication and privacy.
Answer 3:
Remote Monitoring (RMON) is a standard specification that facilitates the monitoring ,
analyzing and troubleshooting of network operational activities through the use of remote
devices known as monitors or probes.
RMON provides the benefits of standarazation and improves efficiency by allowing you to
remain at one workstation and collect information from widely dispersed LAN segments or
VLANs. RMON also allows proactive management and reduces the traffic load.
Answer 4:
Microsoft network monitor and CapsaFree are a few of the basic tools one can use for in this
case. Main features of MNM i.
President Truman belleved that an increase in a na development, which.pdf
President Truman belleved that an increase in a na development, which typically includes the
exploitation of tion\'s ii means that a nation is moving toward economic . levels of consumption;
immigrant laborers O levels of consumption; natural resources O standard of living; immigrant
laborers Ostandard of living; natural resources
Solution
President Truman believed that an increase in nation\'s levels of consumption means that a nation
is moving towards economic development, which typically includes the exploitation of natural
resources..
Pretend you have been asked by the president of the united statesto .pdf
Pretend you have been asked by the president of the united statesto chair a special task force that
is to write a national policy statement on children\'s exposure to television. What
recommendations would you make concerning viewing hours and type of shows to be aired?
Relating television back to cognitive development, give two examples of how young children
might misunderstand plots of television shows or claims made on advertisements.
Solution
individuals suffering from social isolation can employ television to create what is termed a
parasocial or faux relationship with characters from their favorite television shows and movies as
a way of deflecting feelings of loneliness and social deprivation.Just as an individual would
spend time with a real person sharing opinions and thoughts, pseudo-relationships are formed
with TV characters by becoming personally invested in their lives as if they were a close friend
so that the individual can satiate the human desire to form meaningful relationships and establish
themselves in society. The pleasurable effects of television may be likened to an addictive
activity, producing \"momentary pleasure but long-term misery and regret.\"When a person plays
video games or watches TV, the basal ganglia portion of the brain becomes very active and
dopamine is released.Release of high amounts of dopamine reduces the amount of the
neurotransmitter available for control of movement, perception of pain and pleasure and
formation of feelings.Watching television starting at a young age can profoundly effect
children\'s development. These effects include obesity, language delays, and learning disabilities.
Physical inactivity while viewing TV reduces necessary exercise and leads to over-eating.
Language delays occurs when a child doesn\'t interact with others. Children learn language best
from live interaction with parents or other individuals. Resulting learning disabilities from over-
watching TV include ADHD, concentration problems and even reduction of IQ. Children who
watch too much television can thus have difficulties starting school because they aren\'t
interested in their teachers. Children should watch a maximum of 2 hours daily if any television.
At the same time, television can help young people discover where they fit into society, develop
closer relationships with peers and family, and teach them to understand complex social aspects
of communication.
Recommendations are:
Give a specific time,ie, like 2 hours/day for television watching and engage them in oter leisures
such as sports,arts,etc.The type of shows must be informative,such as about new
hobbies,improvements in science and technology and new discoveries or about great
people.Never go for anything like dating shows or something explicit children..
Please explain in detail. Why cant Salmonella be infected by lambd.pdf
Please explain in detail. Why can\'t Salmonella be infected by lambda phage? Why can\'t
salmonella be successfully transfected using lambda DNA?
Solution
Lambda phage is a bacteriophage or bacteria virus which is known to infect bacteria especially
Escherichia coli hence, sometimes also called as coliphage.This virus is used in recombinat DNA
technology for transferring special genes or you can say that as a vector. To infect a bacterium a
virus needs to:
1) interact first with the cell surface receptors which are different in different species thus,
making coliphage entry difficult inside the Salmonella species.
2) Multiplication of virus genome inside the bacteria is another factor for a virus to cause
infection in a bacterium. To multiply inside bacteria, phage join its nucleic acid with host\'s
nucleic acid, this stage of infection is called prophage. To attach its nucleic acid a phage must
recognise an attachment site called att site in host\'s genome which varies among different
genera. At this stage genetic exchange takes place hence, it is difficult too transfect Salmonella
with a coliphage.
However, Phage P22 can transfect Salmonella because the bacterium has specific att sites for
P22. Also, Transduction i.e. transfer of nucleic acid by a bacteriophage to bacteria was first
discovered in P22 infecting Salmonella. Salmonella species can be made competitive(
susceptible to genetic exchange by transfection) for coliphage by altering its genomic structure
using recombinant DNA tools..
Part A Tnsomy 21, or Down syndrome, occurs when there is anormal dplo.pdf
Part A Tnsomy 21, or Down syndrome, occurs when there is anormal dploid deomosomal
complement but one 21 Ahough ave higher (19 vrvna offspring would be expected to have Down
syndrome rboen parents have 0own syndrome? Given the that wen 48 chromosomes nou
chromosome 21) ly to survive oaydevekpront peroenlage ar O An the chadren would be expected
to have Down syndrome o None of surviving offsprang wous be expected to rave Down sydome
o one othe survivrg omsprng would be expected trav Downsyndrome O Two minds of surviving
preg wouldbe easected to have Down syndrome One hall the survning onspring would be
expected lo have Down syndoome Incorrect: Try Again: 2 attempts remaining a O Ask me
anything
Solution
one third of the surviving offspring will have Downs Syndrome
Since its inheritance is autosomal, so all children will not have Downzs syndrome. One which
will inherit both the copies of trisomy from both parents will have the syndrome.
Part 1 List the basic steps in securing an operating system. Assume.pdf
Part 1: List the basic steps in securing an operating system. Assume that the O.S. is being
installed for the first time on new hardware.
Part 2: Name and briefly describe two ways that college students could be recruited into illegal
espionage.
Part 3: Explain the function of the trusted boot function of the trusted platform module (TPM.)
Tell how that is related to the current controversy between Apple and the FBI concerning
encryption. What could the FBI do in the absence of a trusted boot function?
Part 4: Define single loss exposure and annualized risk of occurrence. Explain in your own
words what these have to do with computer security.
Part 5: Explain why it is important to monitor outbound traffic as well as inbound traffic in a
corporate network. Give an example
Solution
Part1:-
There are three things that can enhance operating system security across an enterprise network:
First, provisioning of the servers on the network should be done once in one place, involving the
roughly tens of separate configurations most organizations require. This image, or set of images,
can then be downloaded across the network, with the help of software that automates this process
and eliminates the pain of doing it manually for each server. Moreover, even if you had an
instruction sheet for these key configurations, you wouldn\'t want local administrators to access
these key configurations for each server, which is very dangerous. The best way to do it is once
and for all.
Once the network has been provisioned, administrators need to be able to verify policy
compliance, which defines user access rights and ensures that all configurations are correct. An
agent running on the network or remotely can monitor each server continuously, and such
monitoring wouldn\'t interfere with normal operations.
Second, account management needs to be centralized to control access to the network and to
ensure that users have appropriate access to enterprise resources. Policies, rules and intelligence
should be located in one place—not on each box—and should be pushed out from there to
provision user systems with correct IDs and permissions. An ID life cycle manager can be used
to automate this process and reduce the pain of doing this manually.
Third, the operating system should be configured so that it can be used to monitor activity on the
network easily and efficiently—revealing who is and isn\'t making connections, as well as
pointing out potential security events coming out of the operating system. Administrators can use
a central dashboard that monitors these events in real time and alerts them to serious problems
based on preset correlations and filtering. Just as important, this monitoring system should be set
up so that administrators aren\'t overwhelmed by routine events that don\'t jeopardize network
security.
Part2:-
Two ways that college students could be recruited into illegal espionage:
First, the students may be trend before they sending out to the foreign .
John is 35 years old and recently married with Eva. After they got m.pdf
John is 35 years old and recently married with Eva. After they got married, they are considering
to have their first child in 2 years and save for a deposit to buy an apartment. Which lifecycle
stage is John likely in?
Select one:
a. Wealth accumulation phase
b. Early family formation
c. Approaching retirement
d. Post retirement
e. Saving versus consumption phase
Solution
Answer :- Option e). Saving versus consumption phase.
Explanation :- John is likely in \"Saving versus consumption phase\" of lifecycle in the above
given question..
List three characteristics that an Intrusion Prevention System (IPS).pdf
List three characteristics that an Intrusion Prevention System (IPS) could use in identifying an
intruder to a network. Do you feel these systems are effective?
Solution
Intrusion Prevention System is a control device of security technology where it has the capacity
which it offers the security to all the system levels. That is, it provides the security from the
operating system to network data packets. When the data is transferred by the user, the IPS offers
some rules for the network traffic for alerting the user system or the network administrators by
giving alert that there will be a suspicious in the traffic. Then the administrator can take the
action on the suspicious and user can be attentive.
If there are any potential attacks then IPS makes attempts to stop it. IPS has the capacity that it
prevents the known intrusion signatures, and also some unknown attacks.
Yes, it is an effective system to avoid the attacks and protects the system in all levels by
providing the security..
Interpret the symbol P(BA) and explain what is meant by the express.pdf
Interpret the symbol P(B|A) and explain what is meant by the expression. What do we know if
P(B|A) is not the same as P(B)?
Solution
P(B | A) = probability of event B when we know that event A happenen, it is also called
conditional probability of B, given A
When P(B|A) is not equal to P(B), we know that B is dependent on A (not independent).
In which disease investigation are important SolutionInvestiga.pdf
In which disease investigation are important?
Solution
Investigation of disease include symptoms of disease , its spread and treatment with measures to
control them.Primary objective of investigation is identify source of disease and measures to
prevent them. Investigation is required in many communicable disease , disease caused by any
kind of poisoning, disease caused by any parasite , infectious disease and disease caused by any
unknown source of present information is not available..
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