350-401 Question #236: Real Exam Question with Answer & Explanation

Question

What does Call Admission Control require the client to send in order to reserve the bandwidth?

Options

• ASIP flow information
• BWi-Fi multimedia
• Ctraffic specification
• DVoIP media session awareness

Explanation

Call Admission Control (CAC) requires the client to send a traffic specification (TSpec) to reserve the necessary network bandwidth for its communication session.

Common mistakes.

• A. SIP flow information describes the signaling and call setup parameters, but it does not directly specify the media's bandwidth requirements for resource reservation within a CAC system.
• B. Wi-Fi Multimedia (WMM) is a QoS standard for Wi-Fi networks that prioritizes traffic, but it is a network capability, not information sent by the client to reserve bandwidth for CAC.
• D. VoIP media session awareness is a general understanding of the traffic type, not a specific protocol message or data structure sent by the client to request and reserve bandwidth.

Concept tested. Call Admission Control and Traffic Specification

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_rsvp/configuration/xe-16/qos-rsvp-xe-16-book.html

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