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多选题Which two statements are true about CAC？（）ACAC is implemented in the call setup phase to allocate bandwidth resourcesBCAC is implemented in the call maintenance phase to allocate bandwidth resourcesCCAC is utilized during the call teardown phase to ens

题目
多选题
Which two statements are true about CAC？（）
A

CAC is implemented in the call setup phase to allocate bandwidth resources

B

CAC is implemented in the call maintenance phase to allocate bandwidth resources

C

CAC is utilized during the call teardown phase to ensure that all resources have been released

D

CAC uses the Cisco RSVP （Resource Reservation Protocol） Agent to integrate call-processing capabilities with the underlying network infrastructure

E

CAC is implemented in the call setup phase to determine the destination of the call

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相似问题和答案

第1题：

Many of the activities performed during the preliminary investigation are still being conducted in ____, but in much greater depth than before.

A.analysis phase
B.design phase
C.implementation phase
D.maintenance phase

答案：A
解析：

第2题：

During this phase，the analyst must must develop enough knowledge about the （ ）and the existing systems to enable an effective solution to be proposed and implemented.

A.hardware environment
B.testing environment
C.software environment
D.business environment

答案：D
解析：
在这个分析阶段，系统分析师一定要充分掌握关于业务环境和现行系统的知识，以提交和实施一个有效的解决方案。
A．硬件环境 B．测试环境 C．软件环境 D．业务环境

第3题：

Many of the activities performed during the preliminary investigation are still being conducted in（ ）, but in much greater depth than before. During this phase, the analyst must become fully aware of the （ ）and must develop enough knowledge about the （ ） and the existing systems to enable an effective solution to be proposed and implemented. Besides the （ ）for process and data of current system, the deliverable from this phase also includes the （5）for the proposed system.

（5）应选（ ）。

A. hardware and software specification
B. system performance specification
C. formal requirements definition
D. general problem statement

答案：C
解析：
本题考查的是初步调研的相关知识，这个考点可以做个了解。经常考初步调研阶段的许多活动在分析阶段仍然要继续，而且会比以前更深入许多。在分析阶段，分析师必须要完全清楚最终蓝图并且掌握充分的业务环境和目前系统的商业环境，以使一个有效的解决方案被提出并且执行。除了当前系统的过程和数据的逻辑模型,这一阶段的产出物还包括建议系统的正式需求定义。

75、A、软硬件说明，B、系统性能说明，C、正式需求定义，D、一般问题说明

第4题：

Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）

  • A、 CAC is used to allocate enough bandwidth for the number of calls that are allowed on the VoIP network.
  • B、 CAC is used to protect the quality of the voice calls by preventing call establishment if enough resources are not available on the network.
  • C、 CAC provides queuing mechanisms for voice calls if the packets exceed the configured or budgeted rate.
  • D、 In a VoIP network the CAC can be replaced with the LLQ QoS mechanism if it has been properly implemented.

正确答案:B

第5题：

Which two statements are true about CAC？（）

  • A、CAC is implemented in the call setup phase to allocate bandwidth resources
  • B、CAC is implemented in the call maintenance phase to allocate bandwidth resources
  • C、CAC is utilized during the call teardown phase to ensure that all resources have been released
  • D、CAC uses the Cisco RSVP （Resource Reservation Protocol） Agent to integrate call-processing capabilities with the underlying network infrastructure
  • E、CAC is implemented in the call setup phase to determine the destination of the call

正确答案:A,D

第6题：

During this phase, the analyst must become fully aware of the ____ and must develop enough knowledge about the __请作答该选项__ and the existing systems to enable an effective solution to be proposed and implementeD．

A.hardware environment
B.testing environment
C.software environment
D.business environment

答案：D
解析：

第7题：

Many of the activities performed during the preliminary investigation are still being conducted in （ ）, but in much greater depth than before.

A.analysis phase
B.design phase
C.implementation phase
D.maintenance phase

答案：A
解析：
翻译：在初步调研时完成的许多活动在分析阶段还要继续进行，只是比以前更深入地去做。
A．分析阶段 B．设计阶段 C．实施阶段 D．维护阶段

第8题：

Many of the activities performed during the preliminary investigation are still being conducted in（1）, but in much greater depth than before. During this phase, the analyst must become fully aware of the （ ）and must develop enough knowledge about the （ ） and the existing systems to enable an effective solution to be proposed and implemented. Besides the （ ）for process and data of current system, the deliverable from this phase also includes the （ ）for the proposed system.

（1）处应选（ ）。



A. analysis phase
B. D.esign phase
C. implementation phase
D.. maintenance phase

答案：A
解析：
本题考查的是初步调研的相关知识，这个考点可以做个了解。经常考

初步调研阶段的许多活动在分析阶段仍然要继续，而且会比以前更深入许多。在分析阶段，分析师必须要完全清楚最终蓝图并且掌握充分的业务环境和目前系统的商业环境，以使一个有效的解决方案被提出并且执行。除了当前系统的过程和数据的逻辑模型,这一阶段的产出物还包括建议系统的正式需求定义。

71、A、分析阶段，B、设计阶段，C、执行阶段，D、维护阶段

第9题：

Which three statements are true about load-based Call Admission Control?（）

  • A、grants a VoWLAN client-initiated call based on the number of active clients associated to the accesspoint
  • B、grants a VoWLAN client-initiated call based on channel bandwidth capacity
  • C、uses the 802.11i specification
  • D、uses 802.11 action frames
  • E、requires a WMM-enabled client

正确答案:B,D,E

第10题：

Which IOS feature provides dial plan scalability and bandwidth management for H.323 VoIP implementations？（）

  • A、gatekeeper
  • B、Call Routing
  • C、Call Admission Control
  • D、Digital Signal Processors

正确答案:A

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