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 CISCO Certification Questions

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Q:

What type of cable is shown in the exhibit?

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A) AEIA/TIA-232 B) EIA-530
C) X.21 D) V.35
 
Answer & Explanation Answer: D) V.35

Explanation:
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Filed Under: CCENT

0 2373
Q:

Which layer ensures the trustworthly transmission of data across a physical link and is primarily concerned with physical addressing, line discipline, network topology, error notification, ordered delivery of frames, and flow control?

Answer

PDUs at the data link layer are called frames and provide physical addressing, plus other options to place packets on the network medium.

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Subject: CCNA

0 2333
Q:

Which commands loads a new version of the Cisco IOS into a router?

A) copy flash ftp B) copy ftp flash
C) copy flash tftp D) copy tftp flash
 
Answer & Explanation Answer: D) copy tftp flash

Explanation:

The command copy tftp flash will allow you to copy a new IOS into flash memory on your router.

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Q:

What is the 127.0.0.1 address used for?

Answer

Loop back or diagnostics

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Subject: CCNA

0 2267
Q:

Convert the following from binary format to hexadecimal

11001010.11110101.10000011.11101011

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Subject: CCNA

0 2249
Q:

Assume a router has a loopback address of 135.77.9.254. Convert the loopback address to an IS-IS system ID.

Answer

The loopback address written in dotted decimal and using three digits for each byte has a value of 135.077.009.254. The system ID is 13.50.77.00.92.54.

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Subject: CCNP

1 2246
Q:

Some colleagues are discussing QoS, and are interested in jitter. What is jitter?

A) Jitter refers to the variation in delay experienced by packets B) Jitter is a flickering effect sometimes seen on streaming video.
C) Jitter is a predefined settings package that provides optimal QoS for IP telephony use. D) Jitter is a clicking noise that can be heard on some VoIP calls. It is caused by loss of UDP packets.
 
Answer & Explanation Answer: A) Jitter refers to the variation in delay experienced by packets

Explanation:
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0 2226
Q:

What is the Class B private IP address space?

Answer

172.16.0.0 through 172.31.255.255

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Subject: CCNA

0 2193