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Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:

1. When a LAN switch port is configured with mls qos trust cos, if the pass-through dscp command option isn't present, how will the switch port treat incoming DSCP-marked frames?

A) The port will re-mark the frames according to the DSCP-to-CoS mapping table.
B) The switch port will convert the DSCP setting to CoS values and use that to select the egress queue for the frame.
C) It will re-mark the DSCP frames according to the CoS-to-DSCP mapping table.
D) It will pass the DSCP-marked frames.

2. A small company would like to minimize the number of analog lines that they use to connect to the PSTN. They are considering a single FXO circuit. Which issue will they encounter if they deploy this solution?

A) They will be able to support both inbound and outbound calls without any issues.
B) They won't be able to support DID and will require a mechanism to handle inbound calls, like PLAR to an operator line.
C) They will need an FXS port for inbound calls to carry ANI.
D) They will need an additional FXS-DID circuit to support inbound ANI.

3. Which command should you use to configure a dial-peer to support T.38 fax relay and to use Cisco fax relay if T.38 fails?

A) fax t38 fallback cisco
B) fax protocol t38 fallback cisco
C) fax relay t38 cisco
D) fax relay t38 backup cisco relay

4. Which three factors must be considered when calculating the total bandwidth of a VoIP call, in order to avoid voice quality issues? (Choose three.)

A) sample size
B) CRC usage
C) codec size
D) data-link overhead
E) capacity of network links

5. You are configuring a network to support voice to the PSTN. One important aspect to the configuration is to be able to determine the individual slot, subunit, and port number from the gateway endpoint identifier. Which signaling protocol is appropriate for this situation?

A) SIP
B) H.323
C) SCCP
D) MGCP

Solutions: