Cisco IP Phone Codec Support

Review Questions

You can find the solutions to these questions in Appendix A, "Answers to Review Questions."

1.

Which of the following two codecs do current Cisco IP Phones support? (Choose two.)

  1. G.711

  2. G.723

  3. G.728

  4. G.729
2.

Which of the following PoE standards does the Cisco IP Phone 7961G support? (Choose two.)

  1. Cisco Pre-Standard Inline Power

  2. 802.11af

  3. 802.11b

  4. 802.3af
3.

Which of the following devices has a built-in Ethernet switch? (Choose three.)

  1. Cisco IP Phone 7905

  2. Cisco IP Phone 7912

  3. Cisco IP Phone 7970

  4. Cisco ATA 186

  5. Cisco ATA 188
   
4.

Which of the following Cisco IP Phones provides video-processing capabilities without the VT Advantage software?

  1. Cisco 7970

  2. Cisco 7971

  3. Cisco 7980

  4. Cisco 7936
5.

Place these steps in the order that an IP Phone must go through before it can register with Cisco CallManager.

  1. Obtain power.

  2. Get configuration from TFTP server.

  3. Load firmware image.

  4. Obtain VLAN information.
6.

Which of the following options can you configure on a DHCP server to deliver the IP address of a TFTP server to a Cisco IP Phone?

  1. Option 6

  2. Option 66

  3. Option 150

  4. Option 170
7.

Most Cisco IP Phones provide built-in ______ processing, which allows them to read data stored in this industry standard format.

  1. XML

  2. HTTP

  3. TXT

  4. SQL
8.

What is the difference between the Cisco IP Phone 7960 and Cisco IP Phone 7961? (Choose two.)

  1. The 7961 provides a 10/100/1000 built-in switch, whereas the 7960 provides only a 10/100 built-in switch.

  2. The 7961 adds support for the VT Advantage.

  3. The 7961 supports six extensions, whereas the 7960 only supports four extensions.

  4. The 7961 supports both the Cisco prestandard and 802.3af inline power, whereas the 7960 supports only the Cisco prestandard.
   
9.

A company wants to migrate to a VoIP network, but it has an expensive all-in-one voice-fax-copier device that it wants to connect to the VoIP network. Which device would you recommend?

  1. Cisco Conference Station 7936

  2. Cisco IP SoftPhone

  3. Cisco ATA 188

  4. Cisco 7905G

  5. Cisco 7914 Expansion Module
10.

A firm wants to install a Cisco IP Phone in the lobby area. The IP telephony network runs only the G.729a codec. The IP Phone should support a single line and all standard features. An LCD display is not required because cost is a concern. Which IP Phone would best meet these requirements?

  1. Cisco IP Phone 7902G

  2. Cisco IP Phone 7905G

  3. Cisco IP Phone 7910G+SW

  4. Cisco IP Phone 7912G
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