Pgp encrypts data by using a block cipher called a

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9. PGP encrypts data by using a block cipher called a) international data encryption algorithmb) private data encryption algorithmc) intrenet data encryption algorithmd) none of the mentionedView AnswerAnswer: aExplanation: None. 10. When a DNS server accepts and uses incorrect information from a host that has no authority giving that information, then it is called
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Computer Networks Questions & Answers – OSPF This set of Computer Networks Multiple Choice Questions & Answers (MCQs) focuses on “OSPF”. 1. Open Shortest Path First (OSPF) is also called as _____________ 2. The computation of the shortest path in OSPF is usually done by ____________ 3. Which of the following is false with respect to the features of OSPF? a) Support for fixed-length sunbathing by including the subnet mask in the routing messageb) More flexible link cost than can range from 1 to 65535c) Use of designated routerd) Distribution of traffic over multiple paths that have equal cost to the destinationView Answer
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Answer: aExplanation: Support for variable-length sunbathing by including the subnet mask in the routing message. 4. In OSPF, which protocol is used to discover neighbour routers automatically? 5. Which of the following is not a type of OSPF packet? 6. Correct order of the operations of OSPF. 1 – Hello packets 2 – Propagation of link-state information and building of routing tables 3 – Establishing adjacencies and synchronisation database a) 1-2-3 b) 1-3-2 c) 3-2-1 d) 2-1-3 View Answer Answer: b Explanation: OSPF first implements a hello protocol. Then it later on tries to establish synchronisation with database. Later on building of routing tables is done.
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