思科认证考试

Each port that is configured to use LACP has an LACP port priority. Which statements are true about LACP port priority？ （）A、 Port priority value can be configured between 1 and 65535.B、 A higher port priority value means a higher priority of LACP.C、 Port 

题目

Each port that is configured to use LACP has an LACP port priority. Which statements are true about LACP port priority？ （）

  • A、 Port priority value can be configured between 1 and 65535.
  • B、 A higher port priority value means a higher priority of LACP.
  • C、 Port priority can be configured so that specific links can be chosen as active links rather than the hot standby links within the port channel.
  • D、 LACP uses the port priority with the port number to form the port identifier.
  • E、 LACP Port priority default value should always be changed
参考答案和解析
正确答案:A,C,D
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相似问题和答案

第1题：

Which of the following is required if ports from VLANs on two separate switches need to broadcastto each other?()

A. Port mirroring

B. VPN

C. Trunking

D. Port authentication


参考答案：C

第2题：

The transfer procedures required to be followed on tankers shall contain ______．

A.A list of each port of discharge

B.A line diagram of the vessel's transfer piping

C.A current crew list

D.The duties by name of each person in charge required for each transfer operation


正确答案：B

第3题：

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?

A. path cost

B. lowest port MAC address

C. VTP revision number

D. highest port priority number

E. port priority number and MAC address

F. None of the above


正确答案：A
A 解析：Explanation:
At the conclusion of the root bridge election process, the switches move on to selecting Root Ports. The Root Port of a bridge is the port that is closest to the Root Bridge in terms of Path Cost.

Every non-Root Bridge must select one Root Port. Again, bridges use the concept of cost to measure closeness. As with some routing metrics, the measure of closeness using STP is not necessarily reflected by hop count. Specifically, bridges track what is referred to as Root Path Cost, which is the cumulative cost of all links to the Root Bridge.

第4题：

Which three are valid methods to monitor and trend SAN port channels with DCNM？（）

  • A、 use summary view in the device manager
  • B、 from the DCNM-SAN client， view ISLs in real time from the Performance drop-down list
  • C、 for each port channel， select Monitor Continually
  • D、 configure traps for each port channel to utilize RMON
  • E、 set up flows with the DCNM-SAN client and use the Performance Manager web client for performance collections

正确答案:A,B,E

第5题：

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-treetopology?（）

  • A、lowest port MAC address
  • B、port priority number and MAC address.
  • C、VTP revision number
  • D、highest port priority number.
  • E、pathcost

正确答案:E

第6题：

Anetworkadministratormustconfigure200switchportstoaccepttrafficfromonlythecurrentlyattachedhostdevices.WhatwouldbethemostefficientwaytoconfigureMAC－levelsecurityonalltheseports?()

A.Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address command.

B.Have end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address command.

C.Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them.

D.Use show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security.


参考答案：C

第7题：

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology？（）

  • A、lowest port MAC address
  • B、port priority number and MAC address
  • C、VTP revision number
  • D、highest port priority number
  • E、path cost

正确答案:E

第8题：

On a 3－port CT3 card, how many HDLC controllers does each port support?()

A.A

B.B

C.C

D.D


参考答案：B

第9题：

What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?（）

  • A、path cost
  • B、lowest port MAC address
  • C、VTP revision number
  • D、highest port priority number
  • E、port priority number and MAC address

正确答案:A

第10题：

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?（）

  • A、lowest port MAC address
  • B、port priority number and MAC address.
  • C、VTP revision number
  • D、highest port priority number.
  • E、path cost

正确答案:E

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