When a remote office location is set up with limited bandwidth resources, which codec would allow the most voice calls with the limited bandwidth?

1. A. G.722
2. B. G.711
3. C. G.729
4. D. G.723

Correct Answer: C

Which version is used to provide encryption for SNMP management traffic in collaboration deployments?

1. A. SNMPv1
2. B. SNMPv3
3. C. SNMPv2
4. D. SNMPv2c

Correct Answer: B

What are two functions of Cisco Expressway in the Collaboration Edge? (Choose two.)

1. A. Expressway-C provides encryption (or Mobile and Remote Access but not (or business-to-business communications.
2. B. The Expressway-C and Expressway-E pair can enable connectivity from the corporate network to the PSTN via a T1/E1 trunk.
3. C. The Expressway-C and Expressway-E pair can interconnect H.323-to-SIP calls for voice.
4. D. Expressway-E provides a VPN entry point for Cisco IP phones with a Cisco AnyConnect client using authentication based on certificates.
5. E. Expressway-E provides a perimeter network that separates the enterprise network from the Internet.

Correct Answer: CE

What is a capability of a Cisco IOS XE media resource?

1. A. It provides a hardware conferencing solution.
2. B. It provides call forwarding capabilities.
3. C. It provides redundancy for voice calls.
4. D. It provides a voice packet optimization solution.

Correct Answer: A
A Cisco IOS XE media resource provides a hardware conferencing solution. It can be used to mix multiple media streams, such as audio and video, into a single stream that can be sent to all participants in a conference call. This is done using a digital signal processor (DSP), which is a specialized processor that is designed to handle the processing of digital signals, such as audio and video.

Which wildcard must an engineer configure to match a whole domain in SIP route patterns?

1. A. *
2. B. @
3. C. !
4. D. .

Correct Answer: A
The asterisk (*) wildcard is used to match any sequence of characters, including an empty sequence. Therefore, it can be used to match any domain name in a SIP Route Pattern.
The other options are not correct because:
C. !: The ! symbol is used to negate a character class.
D. .: The . symbol is used to match any single character.