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【单选题】

What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?（）

A、79xx IP phones do not automatically mark voice packets with non-zero DSCP values.

B、79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values.

C、79xx IP phones do not mark voice packets with optimal DSCP values.

D、79xx IP phones use a custom protocol to communicate CDP information to the switch.

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更多“What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?（）”相关的问题
第1题
[单选题] What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions?（）

A、One shot of chain for every ten feet of water  B、One shot of chain for every fifteen feet of water  C、One shot of chain for every thirty feet of water  D、One shot of chain for every ninety feet of water  

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第2题
[] What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions（）.

A、A.One shot of chain for every ten feet of water  B、B.One shot of chain for every fifteen feet of water  C、C.One shot of chain for every thirty feet of water  D、D.One shot of chain for every ninety feet of water  

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第3题
[单选题] Water lubricated tailshaft bearings wear,（）

A、the after one is more than forward one  B、the forward one is more than after one  C、the forward one is the same with after one  D、it depends on the type of engine  

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第4题
[] 1.Paragraph①（） 2.Paragraph②（） 3.Paragraph③（） 4.Paragraph④（） 5.Paragraph⑤（） A. What is the function of audio courses? B. What is the function of flash cards? C. What is the function of traditional courses? D. What are the most useful tools for language learning? E. What is the function of computer-aided courses? F. What can help you a lot with your language learning? 下列选项正确的是（）。

A、1.Paragraph①（）  B、2.Paragraph②（）  C、3.Paragraph③（）  D、4.Paragraph④（）  E、5.Paragraph⑤（）  F、A. What is the function of audio courses?  H、B. What is the function of flash cards?  I、C. What is the function of traditional courses?  J、D. What are the most useful tools for language learning?  K、E. What is the function of computer-aided courses?  F. What can help you a lot with your language learning?  下列选项正确的是（）。  

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第5题
[单选题] One of the causes of ocean currents is density differences in the water. This is true because （）.

A、in an area of high density the water's surface is lower than in an area of low density  B、surface water flows from an area of high density to one of low density  C、the lesser the density gradient the freer the water is to move  D、it is the density differences that cause the currents to stay in the troughs  

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第6题
[多选题] The Peanut router is able to successfully ping the Serial 0 and Ethernet 0 interface of the Popcorn router, but a ping issued to the Ethernet 1 interface fails. Based on the above output, what are the potential causes of this problem?（）

A、The Popcorn router is not forwarding RIP updates.  B、The Popcorn router did not include network 192.168.12.0 in its routing configuration.  C、The Ethernet1 interface of the Popcorn router is shutdown.  D、The clockrate is not present in the configuration of one of the routers.  E、The Serial interface of the Popcorn router is not operating.  

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第7题
[单选题] What is the theoretical maximum number of logical ports that a one port of a 2-port 10Gb IVE can provide if no VIO Server is connected to the IVE?（）

A、2  B、4  C、8  D、16  

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第8题
[填空题] That the denial of one member of two words implies the assertion of the other is the characteristic of c（） antonyms.

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第9题
[单选题] Refer to the exhibit.Assuming that the entire network topology is shown, what is the operational status of the interfaces of R2 as indicated by the command output shown?（）

A、One interface has a problem.  B、Two interfaces have problems.  C、The interfaces are functioning correctly.  D、The operational status of the interfaces cannot be determined from the output shown.  

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第10题
[单选题] What term is used to describe the process where one frame is placed into a different type of frame?（）

A、Framing  B、De-encapsulation  C、Encapsulation  D、De-framing  E、None of the above  

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