Computer Networks Questions & Answers – Packet Switching & Circuit Switching

This set of Computer Networks Multiple Choice Questions & Answers (MCQs) focuses on “Packet Switching & Circuit Switching”.

1. A local telephone network is an example of a _______ network
a) Packet switched
b) Circuit switched
c) Both of the mentioned
d) None of the mentioned
View Answer

Answer: a
Explanation: None.

2. Most packet switches use this principle
a) Stop and wait
b) Store and forward
c) Both of the mentioned
d) None of the mentioned
View Answer

Answer: b
Explanation: The packet switch will not transmit the first bit to outbound link until it recieves the entire packet.

3. If there are N routers from source to destination, total end to end delay in sending packet P(L->number of bits in the packet R-> transmission rate)
a) N
b) (N*L)/R
c) (2N*L)/R
d) L/R
View Answer

4. Method(s) to move data through a network of links and switches
a) Packet switching
b) Circuit switching
c) Line switching
d) Both a and b
View Answer

5. The resources needed for communication between end systems are reserved for the duration of session between end systems in ________
a) Packet switching
b) Circuit switching
c) Line switching
d) Frequency switching
View Answer

Answer: b
Explanation: None.

6. As the resouces are reserved between two communicating end systems in circuit switching, this is achieved
a) authentication
b) guaranteed constant rate
c) reliability
d) store and forward
View Answer

Answer: b
Explanation: None.

7. In _________ resources are allocated on demand.
a) packet switching
b) circuit switching
c) line switching
d) frequency switching
View Answer

Answer: a
Explanation: In packet switching there is no reservation.

8. Which of the following is an application layer service ?
a) Network virtual terminal
b) File transfer, access, and management
c) Mail service
d) All of the mentioned
View Answer

Answer: d
Explanation: None.