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210-060 · Question #201
210-060 Question #201: Real Exam Question with Answer & Explanation
The correct answer is A: a process used to connect two parties calling. Call signaling is the process of establishing a connection between two parties, while media flow is the actual audio or video exchanged once that connection is established.
Question
Which two choices best describe call signaling and media flows? (Choose two.)
Options
- Aa process used to connect two parties calling
- Baudio or video or both transferred between two parties during conversation
- Cprotocol for end-to-end users
- Da flow of audio and instant messaging
- Eall call control signals being delivered through a channel
- Fdata telephony, over a data network such as the Internet
Explanation
Call signaling is the process of establishing a connection between two parties, while media flow is the actual audio or video exchanged once that connection is established.
Common mistakes.
- C. This describes a general network protocol characteristic and does not specifically define either call signaling or media flow.
- D. Media flow in VoIP refers to audio and video streams, not instant messaging; instant messaging uses separate protocols such as XMPP and is not part of a call media stream.
- E. This partially describes only the control-signal aspect of call signaling and ignores the media flow component entirely.
- F. Data telephony over the Internet describes VoIP as a broad technology category, not the specific concepts of call signaling or media flow.
Concept tested. VoIP call signaling versus media flow distinction
Reference. https://www.cisco.com/c/en/us/support/docs/voice/voice-quality/14081-voip-fund.html
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