Computer Networks - Quiz 1

Which of the following is not part of the network edge?

• Web browser

• Email client

• Switch

• Mobile app

In the client-server model:

• Clients communicate only with each other

• Servers initiate contact with clients

• Clients request services, servers provide them

• It requires a decentralized directory service

Which of the following statements best describes a protocol?

• A software package that monitors traffic

• A formal specification of rules for communication

• A device used to route packets

• A type of cable used in networks

The delay that includes time to push all packet bits into the link is called:

• Propagation delay

• Queuing delay

• Transmission delay

• Processing delay

Which component lies in the Internet core?

• Smartphone

• Home router

• ISP router

• Web server

The Internet uses circuit switching to establish a dedicated path between sender and receiver.

• True

• False

Packet loss can occur when the arrival rate of packets exceeds the router's queue capacity.

• True

• False

Which of the following best describes the difference between transmission delay and propagation delay?

• Transmission delay is caused by routers; propagation delay is caused by bandwidth

• • Transmission delay is determined by the distance; propagation delay is determined by packet size

• Transmission delay is the time to push bits onto the link; propagation delay is the time for bits to travel over the link

• They are the same thing

Which of the following is not a source of delay in packet switching?

• Processing delayProcessing delay

• Congestion delay

• Queuing delay

• Transmission delay

Which of the following best defines throughput?

• The number of routers in the path

• The amount of time it takes to send a signal

• The rate at which data is successfully delivered over a network

• The maximum packet size that can be sent