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READ Free Dumps For Cisco- 400-051





Question ID 13043

Which enrollment method does a Cisco IOS VPN router trustpoint use to install a
Certificate Authority Proxy Function certificate for LSC validation of a Cisco IP phone
client?

Option A

HTTP proxy server

Option B

certificate authority server URL

Option C

terminal

Option D

 self-signed

Option E

registration authority

Correct Answer C
Explanation Explanation: ✑ Router(config)#crypto pki trustpoint CAPF enrollment terminal authorization username subjectname commonname revocation-check none Router(config)#crypto pki authenticate CAPF Router(config)# Things to Note: ✑ The enrollment method is terminal because the certificate has to be manually installed on the Router. Reference: http://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/authentication- authorization-accounting-aaa/116313-configure-anyconnect-00.html


Question ID 13045

Which two are characteristics of jitter buffers? (Choose two.)

Option A

Jitter buffers are used to change asynchronous packet arrivals into a synchronous stream by turning variable network delays into constant delays at the destination end systems.

Option B

Jitter buffers are used to change asynchronous packet arrivals into a synchronous stream by turning variable network delays into constant delays at the sending systems.

Option C

The role of the jitter buffer is to balance the delay and the probability of interrupted playout due to late packets.

Option D

The role of the jitter buffer is to queue late packets and reorder out-of-order packets.

Option E

Jitter buffers are used to change asynchronous packet arrivals into a synchronous stream by queuing packets into constant delays at the sending systems.

Correct Answer A,C
Explanation Explanation: Jitter buffers are used to remove the effects of jitter so that asynchronous packet arrivals are changed to a synchronous stream. The jitter buffer trades off between delay and the probability of interrupted playout because of late packets (discard). Reference: http://www.appneta.com/blog/jitter-voip/

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