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2017 July Cisco Official New Released 200-125 Q&As
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CCNA Routing and Switching v3.0

QUESTION 361

Which two statements about late collisions are true? (Choose two.)

 

A.

They may indicate a duplex mismatch.

B.

By definition, they occur after the 512th bit of the frame has been transmitted.

C.

They indicate received frames that did not pass the FCS match.

D.

They are frames that exceed 1518 bytes.

E.

They occur when CRC errors and interference occur on the cable.

 

Correct Answer: AB

 

 

QUESTION 362

Which feature can you implement to reserve bandwidth for VoIP calls across the call path?

 

A.

PQ

B.

CBWFQ

C.

round robin

D.

RSVP

 

Correct Answer: D

Explanation:

When implemented on all nodes in the path, RSVP guarantees bandwidth for the call along the entire path for the entire duration of the call. This is the only technique that achieves this level of accuracy.

 

 

QUESTION 363

Refer to the exhibit. Which user-mode password has just been set?

 

clip_image001

 

A.

Telnet

B.

Auxiliary

C.

SSH

D.

Console

 

Correct Answer: A

 

 

QUESTION 364

Which three commands can you use to set a router boot image? (Choose three.)

 

A.

Router(config)# boot system flash c4500-p-mz.121-20.bin

B.

Router(config)# boot system tftp c7300-js-mz.122-33.SB8a.bin

C.

Router(config)#boot system rom c7301-advipservicesk9-mz.124-24.T4.bin

D.

Router> boot flash:c180x-adventerprisek9-mz-124-6T.bin

E.

Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.bin

F.

Router(config)#boot bootldr bootflash:c4500-jk9s-mz.122-23f.bin

 

Correct Answer: ABC

 

 

QUESTION 365

Which two spanning-tree port states does RSTP combine to allow faster convergence? (Choose two.)

 

A.

blocking

B.

listening

C.

learning

D.

forwarding

E.

discarding

 

Correct Answer: AB

 

 

QUESTION 366

Which switching method duplicates the first six bytes of a frame before making a switching decision?

 

A.

fragment-free switching

B.

store and-forward switching

C.

cut through switching

D.

ASIC switching

 

Correct Answer: C

Explanation:

Cut and Through

Cut and Through method has lowest latency. In this method Switch only read first six bytes from frame after the preamble. These six bytes are the destination address of frame. This is the fastest method of switching. This method also processes invalid frames. Only advantage of this method is speed.

 

 

 

 

QUESTION 367

What is the effect of using the service password-encryption command?

 

A.

Only the enable password will be encrypted.

B.

It will encrypt all current and future passwords.

C.

It will encrypt the secret password and remove the enable secret password from the configuration.

D.

Only the enable secret password will be encrypted.

E.

Only passwords configured after the command has been entered will be encrypted.

 

Correct Answer: B

Explanation:

Enable vty, console, AUX passwords are configured on the Cisco device. Use the show run command to show most passwords in clear text. If the service password-encryption is used, all the passwords are encrypted. As a result, the security of device access is improved.

 

 

QUESTION 368

If a router has four interfaces and each interface is connected to four switches, how many broadcast domains are present on the router?

 

A.

1

B.

2

C.

4

D.

8

 

Correct Answer: C

 

 

QUESTION 369

Which logging command can enable administrators to correlate syslog messages with millisecond precision?

 

A.

no logging console

B.

logging buffered 4

C.

no logging monitor

D.

service timestamps log datetime msec

E.

logging host 10.2.0.21

 

Correct Answer: D

 

 

QUESTION 370

Which command can you enter to route all traffic that is destined for 192.168.0.0/20 to a specific interface?

 

A.

router(config)#ip route 192.168.0.0 255.255.240.0 GigabitEthernet0/1

B.

router(config)#ip route 0.0.0.0 255.255.255.0 GigabitEthernet0/1

C.

router(config)#ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1

D.

router(config)#ip route 192.168.0.0 255.255.255.0 GigabitEthernet0/1

 

Correct Answer: A

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