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Computer Networking Interview Questions and Answers

Ques 46. What is multicast routing?

Ans. Sending a message to a group is called multicasting, and its routing algorithm is called multicast routing.

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Ques 47. What is region?
Ans. When hierarchical routing is used, the routers are divided into what we will call regions, with each router knowing all the details about how to route packets to destinations within its own region, but knowing nothing about the internal structure of other regions.
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Ques 48. What is silly window syndrome?
Ans. It is a problem that can ruin TCP performance. This problem occurs when data are passed to the sending TCP entity in large blocks, but an interactive application on the receiving side reads 1 byte at a time.
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Ques 49. What are Digrams and Trigrams?
Ans. The most common two letter combinations are called as digrams. e.g. th, in, er, re and an. The most common three letter combinations are called as trigrams. e.g. the, ing, and, and ion.
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Ques 50. Expand IDEA.
Ans. IDEA stands for International Data Encryption Algorithm.
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