單項選擇題You have finished physically installing an access point on the ceiling at your office. At a minimum, which paramenter must be configured on the access point in order to allow a wireless client to operate on it?（）

A. AES
B. PSK
C. SSID
D. TKIP
E. WEP


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2.單項選擇題Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?（）

A. Layer 2
B. Layer 3
C. Layer 4
D. Layer 5
E. Layer 6
F. Layer 7

3.單項選擇題The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?（）

A. Authentication needs to be changed to PAP for both routers.
B. Serial IP addresses of routers are not on the same subnet.
C. Username/password is incorrectly configured.
D. Router names are incorrectly configured.

4.單項選擇題What is valid reason for a switch to deny port access to new devices when port security is enabled?（）

A. The denied MAC addresses have already been learned or confgured on another secure interface in the same VLAN.
B. The denied MAC address are statically configured on the port.
C. The minimum MAC threshold has been reached.
D. The absolute aging times for the denied MAC addresses have expired.

5.單項選擇題What is the purpose using the traceroute command?（）

A. to map all the devices on a network.
B. to display the current TCP/IP configuration values.
C. to see how a device MAC address is mapped to its IP address.
D. to see the path a packet will take when traveling to a specified destination.
E. to display the MTU values for each router in a specified network path from source to a destination.

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Which command displays the CHAP authentication process as it occurs between two routers?（）

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If all OSPF routers in a single area are configured with the same priority value,what value dose a router use for the ODPF router ID in the absence of a loopback interface?（）

題型：單項選擇題

Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?（）

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What is the purpose of the cisco Vlan Trunking protocol?（）

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At which layer of the OSI model is RSTP used to prevent loops?（）

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Which command encrypts all plaintext passwords?（）

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Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?（）

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After the show ip route command has been entered,the follwing routes are displayed.Which route will not be entered into the routing table of a neighboring router?（）

題型：單項選擇題

An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?（）

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Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?（）

題型：單項選擇題