1. Which of the following is used to transfer messages from one node to another in a store-and-forward switching network?
(A) hopu
(B) entity
(C) jitter
(D) scaling
2. ______ is done by using the datagram approach to a packet in the switching network.
(A) Network layer
(B) Physical layer
(C) Data link layer
(D) Application layer
3. Which of the following is a ratio of the number of successful calls to the number of call attempts?
(A) Busy Hour Call Rate
(B) Call Block Rate
(C) Call Completion Rate
(D) None of these
4. Which of the following resources are allocated on demand?
(A) Line switching
(B) Circuit switching
(C) Packet switching
(D) Frequency switching
5. ______ is the phase where jitter is generated as additive noise on a sinusoidal wave.
(A) Discrete
(B) Sampled
(C) Continuous
(D) Distorted
6. A Circuit Switched Network is made of a set of switches connected by physical ______.
(A) Nodes
(B) Media
(C) Links
(D) Both A and B
7. Which of the following defines Grade of Service (GOS)?
(A) Time congestion
(B) Call congestion
(C) Both A and B
(D) None of these
8. Which of the following is an application layer service?
(A) Network virtual terminal
(B) File transfer
(C) Access
(D) All of these
9. What type of holding time distribution is assumed for voice conversation on the telephone?
(A) Exponential
(B) Constant
(C) Both A and B
(D) None of these
10. What is used as a switch in a datagram network?
(A) Routing table
(B) Sender address
(C) Header
(D) Destination address
