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?

<p>To direct packets to a destination network based on the most efficient path (A)</p> Signup and view all the answers

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

<p>IPv4 and IPv6 (A)</p> 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'?

<p>IP does not establish a connection with the destination before sending the packet. (C)</p> Signup and view all the answers

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

<p>IP has reduced overhead due to lack of resend mechanism for unreceived data. (A)</p> Signup and view all the answers

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

<p>Retransmitting after an error (B)</p> Signup and view all the answers

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

<p>Receiving control information from the data link layer (B)</p> Signup and view all the answers

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

<p>When the MTU size decreases during packet transmission (C)</p> Signup and view all the answers

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