多項(xiàng)選擇題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.多項(xiàng)選擇題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.多項(xiàng)選擇題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.

3.多項(xiàng)選擇題Switch ports operating in which two roles will forward traffic according to the IEEE 802.1w standard?()

A.alternate
B.backup
C.designated
D.disabled
E.root

4.多項(xiàng)選擇題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.多項(xiàng)選擇題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.

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While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?()

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

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On which options are standard access list based?()

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Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?()

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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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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?()

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The network administrator cannot to switch 1 over a telnet session,although the hosts attached to switch 1 can ping the interface Fa0/0 of the router.Given the information in the graphic and assuming that the router and switch2 are configured properly,which of the following commands should be issued on switch 1 to correct this problem?()

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What is the subnetwork address for a host with the IP address 201.100.5.68/28?()

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Which statement is true, as relates to classful or classless routing?()

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What is the default administrative distance of OSPF?()

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