300-070 Question #266: Real Exam Question with Answer & Explanation

The correct answer is B: It supports only unicast audio streams. A CUCM software conference resource runs on the CUCM server itself (as opposed to hardware DSP-based resources on media servers). (B) It supports ONLY unicast audio streams - multicast is not supported by the software conference bridge; hardware-based resources (like those on Cis

Question

Which two of these are characteristics of a Cisco Unified Communications Manager software conference resource? (Choose two)

Options

AIt supports both unicast and multicast audio streams
BIt supports only unicast audio streams
CThe number of participants is based on the number of DSP resources available
DAny combination of G.711 mu-law, G.711 a-law, or wideband audio streams may be connected.
EIt supports any combination of codec types.

Explanation

A CUCM software conference resource runs on the CUCM server itself (as opposed to hardware DSP-based resources on media servers). (B) It supports ONLY unicast audio streams - multicast is not supported by the software conference bridge; hardware-based resources (like those on Cisco IOS gateways or media servers) are required for multicast. (D) Any combination of G.711 mu-law, G.711 a-law, or wideband audio streams may be connected - the software conference bridge natively supports these specific codec types and can mix them. It does NOT support arbitrary codec combinations (ruling out E), so codecs like G.729 require a transcoder. The number of conference participants is limited by server CPU/memory, not DSP resources (ruling out C).

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