CCNA Voice Tips
| Free IIUC CCNA Voice Questions |
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| Written by David Bombal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Here are questions to test your knowledge of CCNA Voice IIUC topics. These are updated on a regular basis, so keep checking to see more.
What are the three VTP modes on Cisco switches?A) Master B) Client C) Backup D) Server E) Transparent F) Primary Answer: B, D, E - The three VTP modes are: client, server and transparent
Which of the following is selected first for an incoming dial peer?A) Answer-address B) incoming called-number C) destination-pattern D) pots port E) dial-peer 0 Answer: B - incoming called-number is the first choice when matching incoming dial-peers What is the default VTP mode on Cisco switches?A) Master B) Client C) Backup D) Server E) Transparent F) Primary Answer: D - The default VTP mode is server
An analog telephone is connected to a _______ port on a router?
A) FXO B) E1 C) T1 D) FXS E) E&M F) CAS G) CCS Answer: D - Analog devices are connected to FXS ports on Cisco routers.
What is required to convert a G711ulaw call to G729?A) Voice Termination resources B) Conferencing resources C) Converter resources D) Transcoding resources E) Gateway resources F) Gatekeeper resources
Answer: D - Transcoding resources are required to convert G711ulaw to G729.
What is the maximum number of phones are supported on Call Manager Express?A) 48 B) 28 C) 240 D) 500 E) 30000 F) 4
Answer: C - the maximum number of phones supported on CME is 240 on a 3845 Cisco router (this has changed recently to 250, but the CCNA Voice course still sets this value at 240)
What protocol needs to be enabled on an ATA if a fax machine is connected to the ATA?A) MGCP B) SCCP C) H323 D) SIP E) QSIG F) Q931
Answer: C - H323 needs to be enabled on the ATA if a fax machine is connected to the ATA.
What protocol needs to be enabled on an ATA if an analog telephone is connected to the ATA?A) MGCP B) SCCP C) H323 D) SIP E) QSIG F) Q931
Answer: B - SCCP needs to be enabled on the ATA if an analog telephone is connected to the ATA.
What device enables Call Admission Control in a CME environment?
A) Gateway B) Transcoder C) Bridge D) Gatekeeper E) Dial peers F) Endpoint
Answer: D - A Gatekeeper is used for Call Admission Control in a CME environment when using H323.
Which protocol provides VoiP packet sequence numbering?
A) IP B) TCP C) UDP D) RTP E) RTCP F) G711
Answer: D - RTP provides sequence numbering for VoIP packets
Which codec is less processor intensive?A) G729 B) G729a
Answer: B - G729a is less processor intensive than g729
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