Interview question based on skill :
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Total Questions: 10
1. Two broad categories of congestion control are
Correct Answer is : Open-loop and Closed-loop
2. In open-loop control, policies are applied to __________
Correct Answer is : Prevent before congestion occurs
3. Retransmission of packets must be done when
Correct Answer is : All of the mentioned
4. In Go-Back-N window, when the timer of the packet times out, several packets have to be resent even some may have arrived safe. whereas in Selective Repeat window, tries to send ___________
Correct Answer is : Packet that have lost or corrupted
5. Discarding policy is mainly done by
Correct Answer is : Router
6. Closed-Loop control mechanism try to
Correct Answer is : Remove after congestion occurs
7. The technique in which a congested node stops receiving data from the immediate upstream node or nodes is called as
Correct Answer is : Backpressure
8. Backpressure technique can be applied only to
Correct Answer is : Virtual circuit networks
9. The packet sent by a node to the source to inform it of congestion is called
Correct Answer is : Choke
10. In the slow-start algorithm, the size of the congestion window increases __________ until it reaches a threshold.
Correct Answer is : Exponentially
