CCDA 640-864 Q&As – Voice and Video Design (16-20)

June 17, 2013

QUESTION 16
Which H.323 protocol is in charge of call setup and signaling?

A.    RTCP
B.    H.245
C.    G.711
D.    H.225

Answer: D

QUESTION 17
For the following options, which International Telecommunication Union (ITU) standard provides a framework for multimedia protocols for the transport of voice, video, and data over packet- switched networks?

A.    Weighted fair queuing (WFQ)
B.    H.323
C.    Voice over IP (VoIP)
D.    Session Initiation Protocol (SIP)

Answer: B

QUESTION 18
Which feature will not transfer packets when there is silence?

A.    Ear and mouth (E&M)
B.    Voice Activity Detection (VAD)
C.    Digital Silence Suppressor (DSS)
D.    Dial peers

Answer: B

QUESTION 19
Which three of these are components of the North American Numbering Plan? (Choose three.)

A.    Numbering Plan Area
B.    country code
C.    prefix
D.    zone
E.    line number
F.    trunk channel

Answer: ACE
Explanation:
NANP has the address format of NXX-NXX-XXXX, where N is any number from 2 to 9 and X is any number from 0 to 9. The rst three digits identify the numbering plan area and are commonly called the area code. The address is further divided into the office code (also known as prefix) and line number. The prefix is three digits, and the line number is four digits. The line number identifies the phone.

QUESTION 20
When monitoring voice traffic on a converged network, which are the three most important QoS characteristics to pay attention to? (Choose three.)

A.    delay
B.    jitter
C.    packet loss
D.    bit error rate
E.    CRTP hop configuration

Answer: ABC

 
Powered by Wordpress and MySQL. Theme by Shlomi Noach, openark.org