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Network Layer Characteristics Quiz

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Questions and Answers

What are the four basic operations performed by the network layer?

Encapsulation, packet switching, addressing, and routing

Routing, encapsulation, packet forwarding, and de-encapsulation

Encapsulation, addressing, packet delivery, and de-encapsulation

Addressing, routing, encapsulation, and de-encapsulation (correct)

Which statement accurately describes the role of the network layer in the OSI model?

It focuses on error detection and correction in the communication process.

It provides services for data exchange between end devices using IPv4 and IPv6 protocols. (correct)

It is responsible for encrypting and decrypting the data transmitted over the network.

It primarily deals with the physical connection between network devices.

What is the primary function of IP encapsulation at the network layer?

To encapsulate the transport layer segment for reliable communication (correct)

To switch between different network protocols

To encrypt the network packets for secure transmission

To manage the physical connection between devices

In the context of the network layer, what is the purpose of routing tables in a router?

To direct packets to a destination network based on the most efficient path Signup and view all the answers

What are the principle network layer communication protocols mentioned in the module?

IPv4 and IPv6 Signup and view all the answers

In the context of the network layer characteristics, what is the primary reason why IP is described as 'connectionless'?

IP does not establish a connection with the destination before sending the packet. Signup and view all the answers

What is a characteristic of IP that contributes to its 'best effort' nature?

IP has reduced overhead due to lack of resend mechanism for unreceived data. Signup and view all the answers

What function does IP rely on other protocols for, due to its unreliability?

Retransmitting after an error Signup and view all the answers

What is the role of the network layer in establishing the Maximum Transmission Unit (MTU)?

Receiving control information from the data link layer Signup and view all the answers

In what scenario would fragmentation occur at Layer 3 of the network?

When the MTU size decreases during packet transmission Signup and view all the answers