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 CISCO Certification Questions

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Q:

What is the specific term for the unwanted signal interference from adjacent pairs in the cable?

A) EMI B) RFI
C) Crosstalk D) Attenuation
 
Answer & Explanation Answer: C) Crosstalk

Explanation:

The term for the unwanted signal interference from adjacent pairs in the cable is crosstalk

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Filed Under: CCNA

0 3723
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 3718
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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Filed Under: CCENT

1 3708
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 3705
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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Filed Under: CCNA

0 3703
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 3677
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 3665
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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Filed Under: CCNA

0 3617