Yr2 Esport Unit 20.1: Networking - OSI

Which of the following are benefits of using a layered network model?

A . it specifies how changes to one layer must be propagated through the other layers

B . it facilitates troubleshooting

C . it focuses on details rather than general functions of networking

D . it breaks the complex process of networking into more manageable chunks

E . it allows layers developed by different vendors to interoperate.

• A and B only

• B, D, and E

• A and C only

• none of the above

• all of the above

The layers of the OSI model, from the top down, are:

• application, presentation, session, transport, network, data link, physical

• session, presentation, data transport, MAC, network, physical

• physical, data link, network, transport, session, presentation, application

• presentation, application, session, network, transport, data link, physical

• application, encryption, network, transport, logical link control, physical

Which layer of the OSI model is responsible for routing packets across networks?

• Physical Layer

• Data Link Layer

• Network Layer

• Transport Layer

In the TCP/IP model, which layer is equivalent to the OSI model's Transport Layer?

• Application Layer

• Internet Layer

• Transport Layer

• Network Interface Layer

What is the primary function of the TCP protocol in networking?

• To provide a connectionless communication

• To ensure reliable data transmission

• To encrypt data for security

• To assign IP addresses

What is the main purpose of the OSI model?

• To provide a set of rules for data encryption

• To standardise network communication

• To define hardware specifications

• To manage network security

Which layer of the OSI model is responsible for data encryption and decryption?

• Application Layer

• Presentation Layer

• Session Layer

• Transport Layer

In the OSI model, which layer is responsible for establishing, managing, and terminating connections?

• Physical Layer

• Data Link Layer

• Session Layer

• Application Layer

Which of the following is a network security protocol?

• IP

• TCP

• SSL/TLS

• UDP

What is the primary function of the Internet Layer in the TCP/IP model?

• To provide end-to-end communication

• To handle data encryption

• To route packets across networks

• To manage physical connections