Q1) Why has the hosts method for managing DNS largely been abandoned? Where does it still exist?
Q2)Explain the difference between authorization and authentication in the context of file access control.
Q3)Explain a transactional deadlock and race condition. What method is used to address these challenges?
Q4) What are the four key performance requirements of a distributed file system?
Q5)Explain the difference between symbolic links and hard links.
Q6)Briefly compare and contrast two types of replication.
Q7)Identify three types of volatility concerns for mobile systems.
Q8)Explain the difference between recursive and iterated DNS lookup. Which is primarily used today?
Q9)Explain wht is being prioritized when choosing RAID-1 vs. RAID-5 and the reverse.
Q10)Explain idempotent operations. Provide an example of an idempotent operation and a non-idempotent operation.
.
(1) Describe at least three examples that show the importance of d.docxtienmixon
(1)
Describe at least three examples that show the importance of data communications in your daily life.
When doing so, elaborate on the system being used, the communications medium, and the purpose of the systems (i.e., pay bills, search the Web, work-related tasks, etc.).
(2)
What is a domain name? How is it used on the Internet?
Name the top five domain types used on the Internet. Be specific in your answer.
(3)
The TCP/IP protocol suite appears to have no equivalents to the OSI session and presentation layers. How are the services provided by those layers handled in TCP/IP? Be as specific as you can when you refer to the particular services provided by those layers.
(4)
Explain the operation of the Address Resolution Protocol.
(5)
Describe authentication and authorization. Which depends on the other? How and why are these processes more complex in a modern networked organization than within an organization that supports all information processing with a single mainframe?
(6)
Describe Packet filtering and Application (as known as proxy servers) firewall types and how each can improve system security.
(7) Multiple choice
a)
____ avoids the potential inefficiencies of CSMA/CD because no transmission capacity if wasted on collisions and retransmissions.
a. Bus topology
b. NIC
c. Token passing
d. TCP
b)
Under the ____ media access strategy, collisions are allowed to occur, but they are detected and corrected.
a. token passing
b. ICMP
c. TCP
d. CSMA/CD
c)
Which
physical topology type connects all end nodes to a central node such as a hub or router?
a. Bus
b. Cluster
c. Ring
d. Star
d)
In a network using the ____ topology, messages are passed from one node to the next until they reach their destination.
a. Ring
b. Bus
c. Star
d. Logical
.
This slide deck provides an introduction to the fundamental concepts and principles of system design. Aimed at aspiring software engineers and professionals looking to strengthen their understanding, the presentation covers key topics such as scalability, reliability, load balancing, caching, CDN, partitioning, indexes, replication etc.
(1) Describe at least three examples that show the importance of d.docxtienmixon
(1)
Describe at least three examples that show the importance of data communications in your daily life.
When doing so, elaborate on the system being used, the communications medium, and the purpose of the systems (i.e., pay bills, search the Web, work-related tasks, etc.).
(2)
What is a domain name? How is it used on the Internet?
Name the top five domain types used on the Internet. Be specific in your answer.
(3)
The TCP/IP protocol suite appears to have no equivalents to the OSI session and presentation layers. How are the services provided by those layers handled in TCP/IP? Be as specific as you can when you refer to the particular services provided by those layers.
(4)
Explain the operation of the Address Resolution Protocol.
(5)
Describe authentication and authorization. Which depends on the other? How and why are these processes more complex in a modern networked organization than within an organization that supports all information processing with a single mainframe?
(6)
Describe Packet filtering and Application (as known as proxy servers) firewall types and how each can improve system security.
(7) Multiple choice
a)
____ avoids the potential inefficiencies of CSMA/CD because no transmission capacity if wasted on collisions and retransmissions.
a. Bus topology
b. NIC
c. Token passing
d. TCP
b)
Under the ____ media access strategy, collisions are allowed to occur, but they are detected and corrected.
a. token passing
b. ICMP
c. TCP
d. CSMA/CD
c)
Which
physical topology type connects all end nodes to a central node such as a hub or router?
a. Bus
b. Cluster
c. Ring
d. Star
d)
In a network using the ____ topology, messages are passed from one node to the next until they reach their destination.
a. Ring
b. Bus
c. Star
d. Logical
.
This slide deck provides an introduction to the fundamental concepts and principles of system design. Aimed at aspiring software engineers and professionals looking to strengthen their understanding, the presentation covers key topics such as scalability, reliability, load balancing, caching, CDN, partitioning, indexes, replication etc.
Many real-time systems are naturally distributed and these distributed systems require not only highavailability
but also timely execution of transactions. Consequently, eventual consistency, a weaker type of
strong consistency is an attractive choice for a consistency level. Unfortunately, standard eventual
consistency, does not contain any real-time considerations. In this paper we have extended eventual
consistency with real-time constraints and this we call real-time eventual consistency. Followed by this new
definition we have proposed a method that follows this new definition. We present a new algorithm using
revision diagrams and fork-join data in a real-time distributed environment and we show that the proposed
method solves the problem.
The document talks about the overview behind the need and drive for NoSQL databases. It also mentions about some of the most popular NoSQL databases in the market.
Strongly Disagree
Disagree
Neutral
Agree
Strongly Agree
I think people are out to get me
I need to kill to feel calm
I would kill again if I was let out
I agree with my current treatment plan
Discussing the details of my case makes me happy
I feel judged by my therapist
I hear voices
I feel sorry for what I did
I had control of my actions
Killing is wrong
I feel remorse for my actions
Being incarcerated has helped me see the error in my ways
I think my medication is helping me
I would repeat the same actions if given another chance
I hear voices
I think I am receiving enough therapy for my mental illness(es)
I still pose a threat to society
I am happier than I used to be
I understand my emotions
Killing feels good
Business Case Scenario
NTC/415 Version 6
1
NTC/415 r6 – Business Case Scenario: CloudCrushers
Business Case Scenario: CloudCrushers
CloudCrushers provides their customers software consulting services, from strategy to support. They partner with some of the world leaders in the Cloud Computing space, and provide experts to their partners’ customers to support implementation of Enterprise Software tools.
CloudCrushers, headquartered in San Francisco, California, is a global consulting organization with five offices. Two offices are located within the United States and three offices are located outside of the U.S.:
Location
Employees
In-office
Remote/Telecommute
San Francisco, CA
100
X
X
Austin, TX
200
X
X
Remote (USA)
200
X
India
300
X
Japan
10
X
England
50
X
X
At company headquarters in San Francisco, California, the workforce of 100 employees work from the office as well as telecommute. On most days, roughly half the staff will be working from the office. In addition to headquarters, Cloud Crushers has additional offices and work populations:
· Austin, Texas, with 200 employees, most of whom work from the office with some that telecommute.
· Remote workers - there are approximately 200 employees who live in various locations across the United States and telecommute full-time. These employees also travel to client sites frequently.
· Global staff and offices in:
· India has 300 employees who all work from the office and rarely travel.
· Japan has 10 employees who rarely travel.
· England houses 50 employees who both telecommute and work in the office.
All employees are very mobile. While many have workspace at their offices and many employees are mobile within their offices and/or work remote. Employees that work from home supply their own networking services, but are required to have access to high-speed internet when travelling. They are provided with a MacBook, a MiFi device for Internet access when traveling, and a 24” monitor and docking station for home. Mobile phones are not provided by CloudCrushers, but employees are expected to provide their own and the company reimburses employees for their use.
Copyright.
Answer each question1-Describe reasons for using each of the two.docxjustine1simpson78276
Answer each question
1-Describe reasons for using each of the two software deployment methods (“Published” vs. “Assigned”), as well as some of the “Advanced” deployment options. Describe a case when deploying software via the Assigned method presents a problem.
2-As a system administrator, what are some of the things you can control to secure end user computers on your network with Group Policy. What are best practices when deploying Group Policy?
3-Describe the differences between disk quotas and File Server Resource Manager. What are the requirements of using FSRM?
4-Using Distributed File System, copies of files are stored on different servers. Does DFS eliminate the need to do data backups? Why or why not?
4-Describe DNS name resolution process a windows client takes. Why is it necessary to know the steps?
5-What considerations should be made when designing a DNS namespace for a large enterprise? What are the different types of DNS zones?
6-Provide a brief comparison of VPN Protocols, outlining the advantages and disadvantages of each. Provide a scenario where it might be useful to use VPN for an organization.
7-Describe a scenario where an organization will need to use NAP? What are the benefits of using NAP?
8-You are asked to implement a WSUS infrastructure. What are some considerations or requirements you will need to take into account before you deploy WSUS?
9-What are the benefits of using WDS over traditional imaging process? What are the requirements for implementing WDS?
.
DYNAMIC ADDRESS ROUTING FOR SCALABLE AD HOC NETWORKSIAEME Publication
With today’s rapidly improving link - layer technology, and the widespread adoption of wireless networking, the creation of large - scale ad hoc networks could be construed as all but inevitable . Current ad hoc protocol suites do not scale to work efficiently in networks of more than a few hundred nodes. We believe the main reason behind the lack of scalability is that current protocols use flat an d static addressing. In this paper, we provide an initial design of a routing layer based on dynamic addressing by providing a separation between address and identity . Each node has a unique permanent identifier and a transient routing address, which indicates its location in the network at any given time. We propose mechanisms to implement dynamic addressing efficiently. Our initial design suggests that dynamic addressing is a promising approach and worth further examination
Transaction is the most crucial feature for data integrity
Control the application flow when transaction is throw an exception (i.e. Showing friendly message)
Disclaimer: I will rework this. I had too much to say and had to cut to fit in 40mn. Actually I spoke so fast that I spent only 20. So I will add some content soon.
Abstract:
In the good ol' times, when Computer Science was young and open like the ocean, brave captains were more mathematicians than developers. Also, they had great beards.
They opened routes, fought monsters, discovered unknown lands, and we had fun on this ever since. As time goes by, we seem to forget some of their warnings and wisdom.
It's time to roll the treasure map and find the buried chests of pure gold advice!
Q4- If the mean is larger than the median- the distribution is said to.docxsharold2
Q4. If the mean is larger than the median, the distribution is said to be:
A. Negatively skewed
B. Neutrally skewed
C. No serious effect on the distribution
D. None of the above
.
Q4- If the mean is larger than the median- the distribution is said to (1).docxsharold2
Q4. If the mean is larger than the median, the distribution is said to be:
A. Negatively skewed
B. Neutrally skewed
C. No serious effect on the distribution
D. None of the above
.
More Related Content
Similar to Q1) Why has the hosts method for managing DNS largely been abandoned-.docx
Many real-time systems are naturally distributed and these distributed systems require not only highavailability
but also timely execution of transactions. Consequently, eventual consistency, a weaker type of
strong consistency is an attractive choice for a consistency level. Unfortunately, standard eventual
consistency, does not contain any real-time considerations. In this paper we have extended eventual
consistency with real-time constraints and this we call real-time eventual consistency. Followed by this new
definition we have proposed a method that follows this new definition. We present a new algorithm using
revision diagrams and fork-join data in a real-time distributed environment and we show that the proposed
method solves the problem.
The document talks about the overview behind the need and drive for NoSQL databases. It also mentions about some of the most popular NoSQL databases in the market.
Strongly Disagree
Disagree
Neutral
Agree
Strongly Agree
I think people are out to get me
I need to kill to feel calm
I would kill again if I was let out
I agree with my current treatment plan
Discussing the details of my case makes me happy
I feel judged by my therapist
I hear voices
I feel sorry for what I did
I had control of my actions
Killing is wrong
I feel remorse for my actions
Being incarcerated has helped me see the error in my ways
I think my medication is helping me
I would repeat the same actions if given another chance
I hear voices
I think I am receiving enough therapy for my mental illness(es)
I still pose a threat to society
I am happier than I used to be
I understand my emotions
Killing feels good
Business Case Scenario
NTC/415 Version 6
1
NTC/415 r6 – Business Case Scenario: CloudCrushers
Business Case Scenario: CloudCrushers
CloudCrushers provides their customers software consulting services, from strategy to support. They partner with some of the world leaders in the Cloud Computing space, and provide experts to their partners’ customers to support implementation of Enterprise Software tools.
CloudCrushers, headquartered in San Francisco, California, is a global consulting organization with five offices. Two offices are located within the United States and three offices are located outside of the U.S.:
Location
Employees
In-office
Remote/Telecommute
San Francisco, CA
100
X
X
Austin, TX
200
X
X
Remote (USA)
200
X
India
300
X
Japan
10
X
England
50
X
X
At company headquarters in San Francisco, California, the workforce of 100 employees work from the office as well as telecommute. On most days, roughly half the staff will be working from the office. In addition to headquarters, Cloud Crushers has additional offices and work populations:
· Austin, Texas, with 200 employees, most of whom work from the office with some that telecommute.
· Remote workers - there are approximately 200 employees who live in various locations across the United States and telecommute full-time. These employees also travel to client sites frequently.
· Global staff and offices in:
· India has 300 employees who all work from the office and rarely travel.
· Japan has 10 employees who rarely travel.
· England houses 50 employees who both telecommute and work in the office.
All employees are very mobile. While many have workspace at their offices and many employees are mobile within their offices and/or work remote. Employees that work from home supply their own networking services, but are required to have access to high-speed internet when travelling. They are provided with a MacBook, a MiFi device for Internet access when traveling, and a 24” monitor and docking station for home. Mobile phones are not provided by CloudCrushers, but employees are expected to provide their own and the company reimburses employees for their use.
Copyright.
Answer each question1-Describe reasons for using each of the two.docxjustine1simpson78276
Answer each question
1-Describe reasons for using each of the two software deployment methods (“Published” vs. “Assigned”), as well as some of the “Advanced” deployment options. Describe a case when deploying software via the Assigned method presents a problem.
2-As a system administrator, what are some of the things you can control to secure end user computers on your network with Group Policy. What are best practices when deploying Group Policy?
3-Describe the differences between disk quotas and File Server Resource Manager. What are the requirements of using FSRM?
4-Using Distributed File System, copies of files are stored on different servers. Does DFS eliminate the need to do data backups? Why or why not?
4-Describe DNS name resolution process a windows client takes. Why is it necessary to know the steps?
5-What considerations should be made when designing a DNS namespace for a large enterprise? What are the different types of DNS zones?
6-Provide a brief comparison of VPN Protocols, outlining the advantages and disadvantages of each. Provide a scenario where it might be useful to use VPN for an organization.
7-Describe a scenario where an organization will need to use NAP? What are the benefits of using NAP?
8-You are asked to implement a WSUS infrastructure. What are some considerations or requirements you will need to take into account before you deploy WSUS?
9-What are the benefits of using WDS over traditional imaging process? What are the requirements for implementing WDS?
.
DYNAMIC ADDRESS ROUTING FOR SCALABLE AD HOC NETWORKSIAEME Publication
With today’s rapidly improving link - layer technology, and the widespread adoption of wireless networking, the creation of large - scale ad hoc networks could be construed as all but inevitable . Current ad hoc protocol suites do not scale to work efficiently in networks of more than a few hundred nodes. We believe the main reason behind the lack of scalability is that current protocols use flat an d static addressing. In this paper, we provide an initial design of a routing layer based on dynamic addressing by providing a separation between address and identity . Each node has a unique permanent identifier and a transient routing address, which indicates its location in the network at any given time. We propose mechanisms to implement dynamic addressing efficiently. Our initial design suggests that dynamic addressing is a promising approach and worth further examination
Transaction is the most crucial feature for data integrity
Control the application flow when transaction is throw an exception (i.e. Showing friendly message)
Disclaimer: I will rework this. I had too much to say and had to cut to fit in 40mn. Actually I spoke so fast that I spent only 20. So I will add some content soon.
Abstract:
In the good ol' times, when Computer Science was young and open like the ocean, brave captains were more mathematicians than developers. Also, they had great beards.
They opened routes, fought monsters, discovered unknown lands, and we had fun on this ever since. As time goes by, we seem to forget some of their warnings and wisdom.
It's time to roll the treasure map and find the buried chests of pure gold advice!
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a) the reduced plasticity of neurons as we age.
b)the fact that different parts of the cortex have different shapes.
c)the developmental stage in which neural stem cells develop into mature neurons.
d)
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Q1) Why has the hosts method for managing DNS largely been abandoned-.docx
1. Q1) Why has the hosts method for managing DNS largely been abandoned? Where does it still
exist?
Q2)Explain the difference between authorization and authentication in the context of file access
control.
Q3)Explain a transactional deadlock and race condition. What method is used to address these
challenges?
Q4) What are the four key performance requirements of a distributed file system?
Q5)Explain the difference between symbolic links and hard links.
Q6)Briefly compare and contrast two types of replication.
Q7)Identify three types of volatility concerns for mobile systems.
Q8)Explain the difference between recursive and iterated DNS lookup. Which is primarily used
today?
Q9)Explain wht is being prioritized when choosing RAID-1 vs. RAID-5 and the reverse.
Q10)Explain idempotent operations. Provide an example of an idempotent operation and a non-
idempotent operation.
