Answer / zubair

hi guys i want some important interview questions & answers..

Because i am going to attend the interview in shortly.. please help me ....

Answer / mohamed sakeer

It is device to communicate between two networks.

Bridge
Bridge is used to communicate two LAN itself.

Hub
It is device to connect more devices in their network. &
it is used in Star Topology.

What command displays the OSPF section of the running-configuration?

1 Answers  

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What are the two most common request/reply pair with ICMP messages when using the ping command? (Choose two) A. echo reply B. echo request C. source quench D. fragment onset E. information redirect F. destination reachable G. echo control message

1 Answers  

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What is the purpose of Split Horizon? A.) It prevents the regular update messages from reinstating a route that has gone down B.) Information received on an interface cannot be sent back out the same interface C.) Informs all neighbor routers that two routes exist D.) Tells the router the destination is unreachable

1 Answers  

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Which 2 commands shows the Cisco IOS filename? A.) show IOS B.) show ver C.) show flash D.) show mem E.) show NVRAM

1 Answers  

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What does the term "attenuation" mean in data communication? 1 loss of signal strength as distance increases 2 time for a signal to reach its destination 3 leakage of signals from one cable pair to another 4 strengthening of a signal by a networking device

3 Answers  

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Identify 3 methods used to prevent routing loops? A.) Split horizon B.) Holddown timers C.) Poison reverse D.) SPF algorithm E.) LSP's

2 Answers  

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Which of the following is an invalid host address using a netmask of 255.255.255.192? A.) 10.1.1.1 B.) 10.1.1.66 C.) 10.1.1.130 D.) 10.1.1.127

2 Answers  

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What is CRC and which layer it use?

4 Answers   CMS,

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what is difference between designated router and backup designated router and explain feature of both router.

6 Answers   HCL, IBM,

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Identify the command mode necessary to enter the standard ping command? A.) Router(config)# B.) Router> C.) Router(std-ping)# D.) Router(config-if)#

1 Answers  

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let threr are three router 1 is cionected to two and two is conected to three that is 1----2----3 now we can ping 2 from 3 and 1 to two but we are not able to ping 1 to 3 let router 1 is local and rest of two are remote what should be urs troubleshoot steps

2 Answers   Volvo,

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hi... i am usin packet tracer 5.0.. i hav connect two routers A and B. A has 200.100.25.100 and 1.0.0.1 and router B has 200.100.50.100 and 1.0.0.2... i hav connected 1.0.0.1 and 1.0.0.2... now i want to route 200.100.25.100 and 200.10.50.100 usin rip.. i enable rip in both the routers... but whn i give the command show ip route... i jus get this Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set A# so can sombody tell me where i hav gone wrong... thanku

4 Answers  

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