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單項選擇題 When you enable port security on an interface that is also configured with a voice VLAN，
what is the maximum number of secure MAC addresses that should be set on the port？（）

A.No more than one secure MAC address should be set.
B.The default will be set.
C.The IP phone should use a dedicated port， therefore only one MAC address is needed per port.
D.No value is needed if the switchport priority extend command is configured.
E.No more than two secure MAC addresses should be set.

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1.單項選擇題When configuring port security on a Cisco Catalyst switch port， what is the default action taken by the switch if a violation occurs？（）

A.protect （drop packets with unknown source addresses）
B.restrict （increment SecurityViolation counter）
C.shut down （access or trunk port）
D.transition （the access port to a trunking port）

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2.單項選擇題What is an important step to take when verifying a newly proposed network security solution？（）

A.Test the design on a pilot network for expected results prior to implementing on the production network.
B.Run a network audit to determine types of traffic in use on the network.
C.Launch campus updates into the production network and monitor impact to see if configuration changes are needed.
D.Create an interruption of data flow to determine test "back-door" access methods.

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3.單項選擇題What is needed to verify that a newly implemented security solution is performing as expected？（）

A.a detailed physical and logical topology
B.a cost analysis of the implemented solution
C.detailed logs from the AAA and SNMP servers
D.results from audit testing of the implemented solution

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4.單項選擇題What action should you be prepared to take when verifying a security solution？（）

A.having alternative addressing and VLAN schemes
B.having a rollback plan in case of unwanted or unexpected results
C.running a test script against all possible security threats to insure that the solution will mitigate all potential threats
D.isolating and testing each security domain individually to insure that the security design will meet overall requirements when placed into production as an entire system

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5.多項選擇題When creating a network security solution， which two pieces of information should you have previously obtained to assist in designing the solution？（）

A.a list of existing network applications currently in use on the network
B.network audit results to uncover any potential security holes
C.a planned Layer 2 design solution
D.a proof-of-concept plan
E.device configuration templates

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