To Support Digital India, We are trying to enforce the security on the web and digital Information. This Slides provide you basic as well as advance knowledge of security model. Model covered in this slides are Chinese Wall, Clark-Wilson, Biba, Harrison-Ruzzo-Ullman Model, Bell-LaPadula Model etc.
Types of Access Control.
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Comparing Software Quality Assurance Techniques And ActivitiesLemia Algmri
about the different quality assurance (QA) techniques and activities and their effectiveness in dealing with different types of problems , in addition to their cost and their applicability under different environments and development phases.
To Support Digital India, We are trying to enforce the security on the web and digital Information. This Slides provide you basic as well as advance knowledge of security model. Model covered in this slides are Chinese Wall, Clark-Wilson, Biba, Harrison-Ruzzo-Ullman Model, Bell-LaPadula Model etc.
Types of Access Control.
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
Comparing Software Quality Assurance Techniques And ActivitiesLemia Algmri
about the different quality assurance (QA) techniques and activities and their effectiveness in dealing with different types of problems , in addition to their cost and their applicability under different environments and development phases.
Basic Network Attacks
The active and passive attacks can be differentiated on the basis of what are they, how they are performed and how much extent of damage they cause to the system resources. But, majorly the active attack modifies the information and causes a lot of damage to the system resources and can affect its operation. Conversely, the passive attack does not make any changes to the system resources and therefore doesn’t causes any damage.
Slides present data and information system. In any information system security and integrity is the prime concern. How we can make sure stored data is more secure and generated information should be accurate, reliable and consistent.
USER AUTHENTICATION
MEANS OF USER AUTHENTICATION
PASSWORD AUTHENTICATION
PASSWORD VULNERABILITIES
USE OF HASHED PASSWORDS – IN UNIX
PASSWORD CRACKING TECHNIQUES
USING BETTER PASSWORDS
TOKEN AUTHENTICATION
BIO-METRIC AUTHENTICATION
Slides for my lecture "Software security: vulnerabilities, exploits and
possible countermeasures" I had been giving for Samsung Electronics in Suwon, Korea (South).
IP specifies the format of packets, also called #datagrams, and the addressing scheme. Most networks combine IP with a higher-level protocol called Transmission Control Protocol (TCP), which establishes a virtual connection between a destination and a source.
If you want to purchase the content e-mail me on dulith1989@gmail.com
Basic Network Attacks
The active and passive attacks can be differentiated on the basis of what are they, how they are performed and how much extent of damage they cause to the system resources. But, majorly the active attack modifies the information and causes a lot of damage to the system resources and can affect its operation. Conversely, the passive attack does not make any changes to the system resources and therefore doesn’t causes any damage.
Slides present data and information system. In any information system security and integrity is the prime concern. How we can make sure stored data is more secure and generated information should be accurate, reliable and consistent.
USER AUTHENTICATION
MEANS OF USER AUTHENTICATION
PASSWORD AUTHENTICATION
PASSWORD VULNERABILITIES
USE OF HASHED PASSWORDS – IN UNIX
PASSWORD CRACKING TECHNIQUES
USING BETTER PASSWORDS
TOKEN AUTHENTICATION
BIO-METRIC AUTHENTICATION
Slides for my lecture "Software security: vulnerabilities, exploits and
possible countermeasures" I had been giving for Samsung Electronics in Suwon, Korea (South).
IP specifies the format of packets, also called #datagrams, and the addressing scheme. Most networks combine IP with a higher-level protocol called Transmission Control Protocol (TCP), which establishes a virtual connection between a destination and a source.
If you want to purchase the content e-mail me on dulith1989@gmail.com
The key differences between the MDR and IVDR in the EUAllensmith572606
In the European Union (EU), two significant regulations have been introduced to enhance the safety and effectiveness of medical devices – the In Vitro Diagnostic Regulation (IVDR) and the Medical Device Regulation (MDR).
https://mavenprofserv.com/comparison-and-highlighting-of-the-key-differences-between-the-mdr-and-ivdr-in-the-eu/
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Improving profitability for small businessBen Wann
In this comprehensive presentation, we will explore strategies and practical tips for enhancing profitability in small businesses. Tailored to meet the unique challenges faced by small enterprises, this session covers various aspects that directly impact the bottom line. Attendees will learn how to optimize operational efficiency, manage expenses, and increase revenue through innovative marketing and customer engagement techniques.
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Cultivating and maintaining discipline within teams is a critical differentiator for successful organisations.
Forward-thinking leaders and business managers understand the impact that discipline has on organisational success. A disciplined workforce operates with clarity, focus, and a shared understanding of expectations, ultimately driving better results, optimising productivity, and facilitating seamless collaboration.
Although discipline is not a one-size-fits-all approach, it can help create a work environment that encourages personal growth and accountability rather than solely relying on punitive measures.
In this deck, you will learn the significance of workplace discipline for organisational success. You’ll also learn
• Four (4) workplace discipline methods you should consider
• The best and most practical approach to implementing workplace discipline.
• Three (3) key tips to maintain a disciplined workplace.
VAT Registration Outlined In UAE: Benefits and Requirementsuae taxgpt
Vat Registration is a legal obligation for businesses meeting the threshold requirement, helping companies avoid fines and ramifications. Contact now!
https://viralsocialtrends.com/vat-registration-outlined-in-uae/
At Techbox Square, in Singapore, we're not just creative web designers and developers, we're the driving force behind your brand identity. Contact us today.
Discover the innovative and creative projects that highlight my journey throu...dylandmeas
Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
3.0 Project 2_ Developing My Brand Identity Kit.pptxtanyjahb
A personal brand exploration presentation summarizes an individual's unique qualities and goals, covering strengths, values, passions, and target audience. It helps individuals understand what makes them stand out, their desired image, and how they aim to achieve it.
Implicitly or explicitly all competing businesses employ a strategy to select a mix
of marketing resources. Formulating such competitive strategies fundamentally
involves recognizing relationships between elements of the marketing mix (e.g.,
price and product quality), as well as assessing competitive and market conditions
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Looking for professional printing services in Jaipur? Navpack n Print offers high-quality and affordable stationery printing for all your business needs. Stand out with custom stationery designs and fast turnaround times. Contact us today for a quote!
[Note: This is a partial preview. To download this presentation, visit:
https://www.oeconsulting.com.sg/training-presentations]
Sustainability has become an increasingly critical topic as the world recognizes the need to protect our planet and its resources for future generations. Sustainability means meeting our current needs without compromising the ability of future generations to meet theirs. It involves long-term planning and consideration of the consequences of our actions. The goal is to create strategies that ensure the long-term viability of People, Planet, and Profit.
Leading companies such as Nike, Toyota, and Siemens are prioritizing sustainable innovation in their business models, setting an example for others to follow. In this Sustainability training presentation, you will learn key concepts, principles, and practices of sustainability applicable across industries. This training aims to create awareness and educate employees, senior executives, consultants, and other key stakeholders, including investors, policymakers, and supply chain partners, on the importance and implementation of sustainability.
LEARNING OBJECTIVES
1. Develop a comprehensive understanding of the fundamental principles and concepts that form the foundation of sustainability within corporate environments.
2. Explore the sustainability implementation model, focusing on effective measures and reporting strategies to track and communicate sustainability efforts.
3. Identify and define best practices and critical success factors essential for achieving sustainability goals within organizations.
CONTENTS
1. Introduction and Key Concepts of Sustainability
2. Principles and Practices of Sustainability
3. Measures and Reporting in Sustainability
4. Sustainability Implementation & Best Practices
To download the complete presentation, visit: https://www.oeconsulting.com.sg/training-presentations
Falcon stands out as a top-tier P2P Invoice Discounting platform in India, bridging esteemed blue-chip companies and eager investors. Our goal is to transform the investment landscape in India by establishing a comprehensive destination for borrowers and investors with diverse profiles and needs, all while minimizing risk. What sets Falcon apart is the elimination of intermediaries such as commercial banks and depository institutions, allowing investors to enjoy higher yields.
Enterprise Excellence is Inclusive Excellence.pdfKaiNexus
Enterprise excellence and inclusive excellence are closely linked, and real-world challenges have shown that both are essential to the success of any organization. To achieve enterprise excellence, organizations must focus on improving their operations and processes while creating an inclusive environment that engages everyone. In this interactive session, the facilitator will highlight commonly established business practices and how they limit our ability to engage everyone every day. More importantly, though, participants will likely gain increased awareness of what we can do differently to maximize enterprise excellence through deliberate inclusion.
What is Enterprise Excellence?
Enterprise Excellence is a holistic approach that's aimed at achieving world-class performance across all aspects of the organization.
What might I learn?
A way to engage all in creating Inclusive Excellence. Lessons from the US military and their parallels to the story of Harry Potter. How belt systems and CI teams can destroy inclusive practices. How leadership language invites people to the party. There are three things leaders can do to engage everyone every day: maximizing psychological safety to create environments where folks learn, contribute, and challenge the status quo.
Who might benefit? Anyone and everyone leading folks from the shop floor to top floor.
Dr. William Harvey is a seasoned Operations Leader with extensive experience in chemical processing, manufacturing, and operations management. At Michelman, he currently oversees multiple sites, leading teams in strategic planning and coaching/practicing continuous improvement. William is set to start his eighth year of teaching at the University of Cincinnati where he teaches marketing, finance, and management. William holds various certifications in change management, quality, leadership, operational excellence, team building, and DiSC, among others.
Personal Brand Statement:
As an Army veteran dedicated to lifelong learning, I bring a disciplined, strategic mindset to my pursuits. I am constantly expanding my knowledge to innovate and lead effectively. My journey is driven by a commitment to excellence, and to make a meaningful impact in the world.
2. Introduction to Computer Networks
Computer Networks
• A network consists of two or
more entities or objects
sharing resources and
information.
• A computer network consists
of two or more computing
devices connected to each
other to share resources and
information.
4. Communication Model
• Source
– generates data to be transmitted
• Transmitter
– Converts data into transmittable signals
• Transmission System
– Carries data
• Receiver
– Converts received signal into data
• Destination
– Takes incoming data
5. Communication Model
– To transfer data from one computer to another requires
some type of link through which the data can be
transmitted. This link is known as the communications
channel.
– To send data through the channel requires some type of
transmission media, which may be either physical or
wireless.
6. Physical Media
• Twisted-pair cable – consists of two independently insulated wires
twisted around each other (least expensive type of cable—the kind
that is used in many telephone systems)
• Coaxial cable – consists of an insulated center wire grounded by a
shield of braided wire (the primary type of cabling used by the cable
television industry; it is more expensive than twisted pair)
• Fiber-optic cable – contains hundreds of clear fiberglass or plastic
fibers (threads) (made from thin, flexible glass tubing; bandwidth is
greater, so it can carry more data; it is lighter than metal wires and is
less susceptible to interference; it is fragile and expensive)
• ISDN line – a special digital telephone line that transmits and
receives information at very high speeds
7. Twisted-Pair Cables
• TPC are the simplest and the oldest cable medium.
• It is made of two insulated copper wires typically twisted around
each other in a continuous spiral.
• The purpose of twisting the wires is to reduce electrical interference
from similar pairs close by.
8. Coaxial Cable
• Type of cable that has an inner
conductor surrounded by a tubular
insulating layer, surrounded by a
tubular conducting shield. Many
coaxial cables also have an
insulating outer sheath or jacket.
A. Outer plastic sheath
B. Woven copper shield
C. Inner dielectric insulator
D. Copper core
Source: Wikipedia
9. Fiber Optics
• A fiber optic cable is a network cable that
contains strands of glass fibers inside an
insulated casing. These cables are
designed for long distance and very high
network communications.
• Fiber optic cables carry communication
signals using pulses of light. While
expensive, these cables are increasingly
being used instead of traditional copper
cables.
Source: Google Images
11. Microwave
•
Microwave
transmission refers to the
technology of transmitting
information or energy by
the use of radio waves
whose wavelengths are
conveniently measured in
small numbers of
centimeter; so these are
referred as microwaves.
Source: Google Images
12. Microwave Technology
• A disadvantage is that
microwaves are limited
to line of sight propagation.
• Microwave radio
transmission is commonly
used in satellite
communications, deep
space radio
communications, radars, rad
io
navigation systems, sensor
systems and radio
astronomy.
Source: Google Images
13. Radio Frequency
• Radio frequency (RF)
engineering is a subset of electrical
engineering that deals with devices
that are designed to operate in the
Radio Frequency spectrum. These
devices operate within the range of
about 3 kHz up to 300 GHz.
• RF engineering is incorporated into
almost everything that transmits or
receives a radio wave, which
includes, but is not limited
to,Mobile Phones, Radios, WiFi, and two-way radios.
Source: Google Images
14. Satellite Communication
•
•
Satellite
communication, in telecommunications,
the use of artificial satellites to provide
communication links between various
points on Earth.
A satellite is basically a self-contained
communications system with the ability
to receive signals from Earth and to
retransmit those signals back with the
use of a transponder—an
integrated receiver and
transmitter of radio signals.
Source: Google Images
15. • Satellite communication has two main components: the ground
segment, which consists of fixed or mobile transmission and the
space segment, which primarily is the satellite itself. A typical
satellite link involves the transmission of a signal from an Earth
station to a satellite. The satellite then receives and amplifies the
signal and retransmits it back to Earth, where it is received and
reamplified by Earth stations and terminals.
• Satellite receivers on the ground include direct-to-home (DTH)
satellite equipment, mobile reception equipment in aircraft, satellite
telephones.
16. Networking Hardware and Software
• Hub – electronic device used in a LAN to link groups of computers
• Routers - devices used to ensure messages are sent to their intended
destinations
• Repeaters – electronic devices that receive signals and amplify and
send them along the network
17. Hub
An electronic device used for data
transmission, a hub does not examine or
manage any of the traffic that comes
through it: any packet entering any port is
rebroadcast on all other ports .Simply
put, the hub's major function is to
replicate data it receives from one device
attached to it to all others.
18. Repeaters
• A common problem in the networking world is that of weakening electrical
signals. Electrical signals traveling through wires (such as copper wires
used in most networks), weaken due to the wire's electrical resistance.
• A repeater is connected to two cable segments. Any electrical signal
reaching the repeater from one segment, will be amplified and
retransmitted to the other segment.
The electrical signal entering the repeater at one end is weakened. The repeater amplifies the electrical signals and resends the data.
19. Routers
• Routers connect the networks and forward data packets between
them. When data arrives from one of the segments, the router
decides, according to it's routing table, to which segment to forward that
data.
The router decides which is the shortest route the packet should travel to reach the recipient.
20. Modem
A modem is a device that converts
digital data originating from a terminal
or computer, to analog signals used by
voice communication networks such as
the telephone system. At one
end, modems convert the digital pulses
to audible tones and convert audio
tones back to digital pulses at the other.
The
word "Modem" stands for
"MOdulator-DEModulator".
21. Network Category
• Networks are usually classified using three properties:
• Topology
• Protocol
• Architecture
22. Network/Communication Protocols
• A protocol is simply an agreed-on set of rules and procedures for
transmitting data between two or more devices or the information
exchanged between devices—through a network, or other media—is
governed by rules and conventions that can be set out in technical
specifications called communication protocol standards.
• The best known frameworks, to implement a networking protocol
are the TCP/IP model and the OSI model.
23. Introduction to Computer Networks
Network Topology
• The network topology defines
the
way
in
which
computers, printers, and other
devices are connected. A
network topology describes
the layout of the wire and
devices as well as the paths
used by data transmissions.
24. Introduction to Computer Networks
Bus Topology
• Commonly referred to as a
linear bus, all the devices on a
bus topology are connected by
one single cable.
25. Introduction o Computer Networks
Star Topology
•
In star topology, every node
(computer workstation or any
other peripheral) is connected
to central node called hub or
switch.
• This consists of a central
node, to which all other nodes
are connected; this central node
provides a common connection
point for all nodes through a
hub.
• The star topology is the most
commonly used architecture in
Ethernet LANs.
26. Introduction to Computer Networks
Ring Topology
A frame travels around the
ring, stopping at each node.
If a node wants to transmit
data, it adds the data as
well as the destination
address to the frame.
27. Mesh Topology
• The mesh topology connects
all devices (nodes) to each
other for redundancy and fault
tolerance.
• It is used in WANs to
interconnect LANs and for
mission critical networks like
those used by banks and
financial institutions.
28. Network Architecture
• Network architecture – refers to the way a
network is designed and built. The two major
types are:
– Peer-to-peer architecture – Computers connect with
each other in a workgroup to share files, printers, and
Internet access. This is used to connect a small
number of computers.
– Client/server architecture – sends information from a
client computer to a server, which then relays the
information back to the client computer, or to other
computers on the network
29. Hub/Switch/Router
• To connect multiple segments of networks into a larger one
• Hub
– A multiport repeater to enhance signal within the same LAN
• Switch
– Like hub but with intelligent
– Better performance
• Router
– Forward packets from one LAN to another
30. LAN(Local Area Network)
• A network of computers that
are in the same physical
location, such as home or
building
• Usually connected using
Ethernet
– A standard on how
computers communicate
over a shared media (cable)
RJ45 for twisted pair cable
31. WAN(Wireless Area Network)
• A network that uses long-range telecommunication
links to connect 2 or more LANs/computers housed in
different places far apart.
• Towns, states, countries
Your home
• Examples:
• Network of our Campus
• Internet
WAN
Student Computer Centre
USA
32. Clients and Servers
• The client–server characteristic describes
the relationship of cooperating programs
in an application.
• The server component provides a function
or service to one or many clients, which
initiate requests for such services.
A server is a computer system that
selectively shares its resources;
• a client is a computer or computer
program that initiates contact with a server
in order to make use of a resource.
33. Peer-to-Peer Networks
• Peer-to-peer network is also
called workgroup
• No hierarchy among computers
all are equal
• No administrator responsible
for the network
35. Enhance Communication
• Computer networks use electronic mail (e-mail) as the choice for
most of the communication.
• By using networks, information can be sent to a larger audience in
an extremely fast and efficient manner.
36. Share Resources
• Peripheral devices include faxes, modems, scanners, plotters, and
any other device that connects to the computers.
• Equipments having common requirements can be shared in order to
reduce maintenance cost.
• Important data can also be stored centrally to make it accessible to
users, thereby saving storage space on individual computers.
• Computer applications, which take up a considerable amount of
storage space, can be installed centrally on the network, saving
storage space.
37. Transmission Mode
• Simplex
– One direction
• e.g. Television
• Half duplex
– Either direction, but only
one way at a time
• e.g. police radio
• Full duplex
– Both directions at the same
time
• e.g. telephone