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Transport Layer Services and Virtual Circuits Quiz

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Transport Layer Services and Virtual Circuits Quiz

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Questions and Answers

What is the primary function of the network layer in the OSI model?

Routing packets and determining the best path across a network (correct)

Encrypting and decrypting data for secure transmission

Establishing physical connections between devices

Managing the flow control and error checking of data transmissions

What process is involved in encapsulating data from upper layers into network packets?

Framing

Forwarding

Routing

Packetizing (correct)

Which of the following is NOT a service offered by the network layer?

Encrypting data for secure transmission (correct)

Packetizing data

Routing packets

Assigning physical addresses

What is the role of routers in the network layer?

Forwarding packets based on their destination addresses (C) Signup and view all the answers

What information is typically included in the header of a network layer packet?

Source and destination IP addresses (A) Signup and view all the answers

Which layer in the OSI model is responsible for controlling traffic when subnets become overloaded?

Network layer (D) Signup and view all the answers

What is the purpose of assigning physical addresses in the network layer?

To identify devices on a local network (C) Signup and view all the answers

How do routers handle the source and destination addresses in a network layer packet?

They are not allowed to change either the source or destination address (B) Signup and view all the answers

What is the purpose of the routing function in the network layer?

To discover the best path across a physical network for packet transmission (D) Signup and view all the answers

Which of the following is NOT a service offered by the network layer protocol?

Error checking and flow control (C) Signup and view all the answers