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2 years ago

What changes should be made in OSI model(Open System Interconnection).

Computers and Technology

2 answers:

saveliy_v [14]2 years ago

4 0

Answer:

Explanation:

When most non-technical people hear the term “seven layers”, they either think of the popular Super Bowl bean dip or they mistakenly think about the seven layers of Hell, courtesy of Dante’s Inferno (there are nine). For IT professionals, the seven layers refer to the Open Systems Interconnection (OSI) model, a conceptual framework that describes the functions of a networking or telecommunication system.

The model uses layers to help give a visual description of what is going on with a particular networking system. This can help network managers narrow down problems (Is it a physical issue or something with the application?), as well as computer programmers (when developing an application, which other layers does it need to work with?). Tech vendors selling new products will often refer to the OSI model to help customers understand which layer their products work with or whether it works “across the stack”.

Layer 7 - Application

To further our bean dip analogy, the Application Layer is the one at the top--it’s what most users see. In the OSI model, this is the layer that is the “closest to the end user”. It receives information directly from users and displays incoming data it to the user. Oddly enough, applications themselves do not reside at the application layer. Instead the layer facilitates communication through lower layers in order to establish connections with applications at the other end. Web browsers (Google Chrome, Firefox, Safari, etc.) TelNet, and FTP, are examples of communications that rely on Layer 7.

Layer 6 - Presentation

The Presentation Layer represents the area that is independent of data representation at the application layer. In general, it represents the preparation or translation of application format to network format, or from network formatting to application format. In other words, the layer “presents” data for the application or the network. A good example of this is encryption and decryption of data for secure transmission - this happens at Layer 6.

gulaghasi [49]2 years ago

3 0

Answer:

go darlin

Explanation:

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Type the correct answer in the box. Spell all words correctly.

faltersainse [42]

The resource allocation section of the test plan contains the information regarding the features to be tested in the test plan.

<h3>What is resource allocation?</h3>

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Hence, the functions of resource allocation in a test plan are as aforementioned.

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2 years ago

On Windows computers, applications from Microsoft will not look and act the same as windows and menus from the operating system.

Andrej [43]

True.

Windows is an operating system built by Microsoft. Chrome and Android are operating systems built by Google. MacOS (Macbook pro etc) and iOS (iPhone, iPad, Apple Watch etc) are operating systems built by Apple.

Engineers build applications or apps for all of the above operating systems (OS). For example, Microsoft Word menus will look slightly different on Windows vs on a Mac. The underlying functionality maybe the same but the way it looks may have subtle differences.

Think of the OS as the foundation of a building. Once you have the foundation, you can build a house, a skyscraper, an office building etc depending on what you want to build.

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2 years ago

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19) If you want to find your lowest paid, full time employee (with "FT" in column B and each employee's salary found in column C

Vadim26 [7]

Answer:

MAXIF

Explanation:

The MAXIF function is a function used in Ms Excel.

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Option B

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2 years ago

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Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have b

PilotLPTM [1.2K]

Complete Question:

Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have far-reaching security implications for years to come. Which of the following firewall architecture is designed to host servers that offer public services?

a) Bastion Host

b) Screened subnet

c) Screened host

d) Screened

Answer:

b) Screened subnet

Explanation:

In Computer science, Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have far-reaching security implications for years to come.

Screened subnet firewall architecture is designed to host servers that offer public services.

In network security and management, one of the network architecture used by network engineers for the prevention of unauthorized access of data on a computer is a screened subnet. A screened subnet can be defined as a network architecture that uses a single firewall with three screening routers as a firewall.

<em>A screened subnet is also known as a triple-homed firewall, this is because it has three (3) network interfaces;</em>

1. Interface 1: it is known as the external or access router, which is a public interface and connects to the global internet.

2. Interface 2: it is known as the demilitarized zone or perimeter network, which acts as a buffer and hosted public servers (bastions host) are attached herein.

3. Interface 3: it is known as the internal router, which is a subnet that connects to an intranet.

<em>The screened subnet when properly configured helps to prevent access to the internal network or intranet. </em>

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3 years ago

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Mrrafil [7]

Random integer, in this case betweeen 1 and 100

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3 years ago