Computer networking questions.

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#	Question
1	Which protocol requires that a host cease to transmit for a random interval once a collision is detected on the wire? CSMA/CD round robin reservation all of the above Multiple choices
2	Which layer do routers use to determine a packet`s path? data link network physical application Multiple choices
3	The device that can operate in place of a hub is a__ switch bridge router gateway Multiple choices
4	How long is an IPV6 ? 32 bits 128 bytes 64 bits 128 bits Multiple choices
5	What are the advantages and disadvantages of fiber optic cable? Short answers
6	Explain five (5) key tasks performed at the data link layer Short answers
7	How does a switch learn the MAC addresses of the hosts connected to it ? Mention at least three protocols that are used in the network layer. Short answers
8	What is routing protocol ? Mention at least three examples of routing protocols. Short answers
9	Mention two advantages of a Switch and a Router Short answers
10	An ISP owns the block of addresses of the form 198.168.32.0/26. Suppose it wants to create four subnets from this block, each with the same number of IP addresses. What is the network IP address for each subnet? What is the subnet mask for 198.168.32.0/26? Write down the broadcast IP address for each subnet Write at least two IP addresses that will be used by host in each subnet Short answers

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