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What are the four basic operations performed by the network layer?
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?
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?
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?
In the context of the network layer, what is the purpose of routing tables in a router?
What are the principle network layer communication protocols mentioned in the module?
What are the principle network layer communication protocols mentioned in the module?
In the context of the network layer characteristics, what is the primary reason why IP is described as 'connectionless'?
In the context of the network layer characteristics, what is the primary reason why IP is described as 'connectionless'?
What is a characteristic of IP that contributes to its 'best effort' nature?
What is a characteristic of IP that contributes to its 'best effort' nature?
What function does IP rely on other protocols for, due to its unreliability?
What function does IP rely on other protocols for, due to its unreliability?
What is the role of the network layer in establishing the Maximum Transmission Unit (MTU)?
What is the role of the network layer in establishing the Maximum Transmission Unit (MTU)?
In what scenario would fragmentation occur at Layer 3 of the network?
In what scenario would fragmentation occur at Layer 3 of the network?
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