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 CISCO Certification Questions

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Q:

Which layer is responsible for keeping the data from different applications seperate on the network?

Answer

The session layer creates sessions between different host's applications.

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Subject: CCNA

5 3628
Q:

What command is the Windows version of the Cisco command that displays the networks traversed on a path to a network destination?

A) ping B) traceroute
C) arp D) tracert
 
Answer & Explanation Answer: D) tracert

Explanation:

tracert is the Windows version of the Cisco command that displays the networks traversed on a path to a network destination.

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0 3602
Q:

In the operation of CSMA/CD, which host(s) have priority after the expiration of the backoff algorithm?

A) All hosts have equal priority B) The two hosts that caused the collision will have equal priority
C) The host that sent the jam signal after the collision D) The host with the highest MAC address
 
Answer & Explanation Answer: A) All hosts have equal priority

Explanation:

After the expiration of the backoff algorithm , all hosts have equal priority.

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0 3592
Q:

When a ping to the loopback address fails , what can you assume?

A) The IP address of the local host is incorrect B) The IP address of the remote host is incorrect
C) The NIC is not functional D) The IP stack has failed to initialize
 
Answer & Explanation Answer: D) The IP stack has failed to initialize

Explanation:

When a ping to the loopback address fails , you can assume the IP stack has failed to initialize.

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0 3588
Q:

The exhibit below shows the output of a show ip interface brief on a Cisco router.

r1#show ip interface brief

Serial0/0 does not respond to ping requests. What step would you take to resolve the problem?

A) Change ip address on Serial0/0 B) Enable the interface Serial0/0
C) Check the physical connection in Serial 0/0 D) The interface looks fine in status up, problem must be somewhere else
 
Answer & Explanation Answer: C) Check the physical connection in Serial 0/0

Explanation:

In order for an interface to work properly and respond to ping requests, both Status and Protocol must be up.

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1 3588
Q:

Which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?

A) /28 B) /29
C) /30 D) /31
 
Answer & Explanation Answer: C) /30

Explanation:

A point-to-point link uses only two hosts. A/30, or 255.255.255.252, mask provides two hosts per subnet.

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0 3571
Q:

Given the following network range 192.168.0.0/24. We want minimum 50 hosts on each of the available subnets. What will be the subnet mask?

A) /24 B) /25
C) /26 D) /27
 
Answer & Explanation Answer: C) /26

Explanation:

Explanation: 50 hosts require 6 bits of the last octet giving us 64 -2 = 62 possible hosts this satisfies our requirement and leaves us 2 bits over for the subnets. The default mask is /24 or 255.255.255.0 adding the 2 bits for the subnets it becomes 255.255.255.192 or /26

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1 3550
Q:

What command displays the ARP table on a Cisco router?

A) show ip arp B) traceroute
C) arp -a D) tracert
 
Answer & Explanation Answer: A) show ip arp

Explanation:

The command that displays the ARP table on a Cisco router is show ip arp.

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0 3542