單項選擇題When an IP packet is Layer 3-switched from a source in one VLAN to a destination in another VLAN,which field in a packet will be rewritten? ()

A. Layer 2 TTL
B. Layer 3 TTL
C. Layer 3 source address
D. Layer 3 transport protocol
E. Layer 3 destination address


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1.單項選擇題On a Cisco Catalyst switch, which configuration command is used to apply a VACL named "test" to filterthe traffic within VLAN100? ()

A.interfacevlan100ipaccess-grouptest
B.interfacevlan100ipaccess-grouptestin
C.interfacevlan100ipaccess-grouptestout
D.vlanfiltertestvlan-list100
E.vlanaccess-maptest100

2.單項選擇題When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?()

A. by snooping the CoS marking on the incoming frames
B. by using RTP hello messages between the switch port and the Cisco IP Phone
C. by using CDP
D. by using DHCP snooping
E. by snooping the incoming 802.1Q VLAN tag


4.單項選擇題What is a primary objective of the security architecture assessment? ()

A. document power and UPS availability
B. to integrate routing and switching components
C. create a design specification document
D. document the customer's current and future technology projects

5.單項選擇題What is the final step of the core baselining process?()

A. Implement threshold monitoring using RMON.
B. Implement monitoring using SNMP or RMON.
C. Poll and record specific SNMP MIB objects from the device.
D. Verify that SNMP MIB is supported in the relevant core device.

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As an experienced technician, you are responsible for Technical Support in your company. One of the trainees is asking you which Cisco VPN Acceleration Module for Cisco 7200 Series routers and the Cisco 7301 provides high-performance encryption/compression and supports the latest encryption standard.Which of the following will answer his question?()

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What is the purpose of using VPN hardware acceleration equipment?()

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Which configuration will enable OSPF for IPv6 on FastEthernet 0/0/0?()

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What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?()

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As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:()

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Refer to the exhibit. You want to minimize the downtime that results from supervisor engine switchovers on Cisco 6500 Series Switches and Cisco 7600 Series Routers. To achieve this, you are considering deploying a Cisco Nonstop Forwarding with Stateful Switchover solution using OSPF.In the exhibit you can see the output of the show ip ospf neighbor detail command.Which trait of systems using Cisco Nonstop Forwarding with Stateful Switchover and OSPF is shown in the exhibit output and will impact your plan?()

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What are four advantages to using tunnel brokers in an IPv6 transition environment?()

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As an experienced network engineer, you are asked to troubleshoot a CIS network outage. During the troubleshooting process, you notice that one of your colleagues connects additional devices to the network with the use of his own switch. With the purpose of improving speed, the switch is attached to both network ports in an office, which leads to bridge loop.Enabling which of the following feature will be able to prevent this problem from happening again?()

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Refer to the exhibit. Which two of these events will be the result of issuing the above command? ()(Choose two.)

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When a Cisco router is configured for SSH, it acts as an ()?

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