多项选择题A single 802.11g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem?()

A. mismatched TKIP encryption
B. null SSID
C. cordless phones
D. mismatched SSID
E. metal file cabinets
F. antenna type or direction


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1.多项选择题What are two security appliances that can be installed in a network?()

A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM

2.多项选择题Which of the following describes the roles of devices in a WAN?()

A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.

4.多项选择题Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN?()

A.HDLC
B.Ethernet
C.Token Ring
D.PPP
E.FDDI
F.Frame Relay

5.多项选择题A Catalyst 2950 needs to be reconfigured. What steps will ensure that the old configuration is erased?()

A. Erase flash.
B. Restart the switch.
C. Delete the VLAN database.
D. Erase the running configuration.
E. Erase the startup configuration.
F. Modify the configuration register.

7.多项选择题What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch?()

A. The switch will ignore VTP summary advertisements.
B. The switch will forward VTP summary advertisements.
C. The switch will process VTP summary advertisements.
D. The switch will originate VTP summary advertisements.
E. The switch will create, modify and delete VLANs for the entire VTP domain.

8.多项选择题What are three valid reasons to assign ports to VLANs on a switch?()

A. to make VTP easier to implement
B. to isolate broadcast traffic
C. to increase the size of the collision domain
D. to allow more devices to connect to the network
E. to logically group hosts according to function
F. to increase network security

10.多项选择题What are the possible trunking modes for a switch port?()

A. transparent
B. auto
C. on
D. desirable
E. client
F. forwarding

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

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A network administrator is planning a network installation for a large organization.The design requires 100 separate subnetworks,so the company has acquired a Class B network address.What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?()

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A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?()Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

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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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When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?()

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

题型:单项选择题

How are VTP advertisements delivered to switches across the network?()

题型:单项选择题

Which command encrypts all plaintext passwords?()

题型:单项选择题

Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?()

题型:单项选择题

Which statement describes the rule of split horizon?()

题型:单项选择题