單項選擇題The enable secret command is used to secure access to which CLI mode?()

A. user EXEC mode
B. global configuration mode
C. privileged EXEC mode
D. auxiliary setup mode


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1.單項選擇題Which statement about vlan operation on cisco catalyst switches is true?()

 A. when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table.
B. unkown unicast frames are retransmitted only to the ports that belong to the same vlan
C. ports between switches should be configured in access mode so that vlans can span across the ports
D. broadcast and multicast frames are retransmitted to ports that are configured on different vlan.

2.單項選擇題A router receives information about network 192.168.10.0/24 from multiple sources.What will the router consider the most reliable information about the path to that network?()

A. an OSPF update for network 192.168.0.0/16
B. a static router to network 192.168.10.0/24
C. a static router to network 192.168.10.0/24 with a local serial interface configured as the next hop
D. a RIP update for network 192.168.10.0/24
E. a directly connected interface with an address of 192.168.10.254/24
F. a default route with a next hop address of 192.168.10.1

4.單項選擇題Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network addres?()

A. 172.16.16.0
B. 172.16.24.0
C. 172.16.0.0
D. 172.16.28.0

5.單項選擇題Which command can be used to verify the DLCI destination address in a Frame Relay static configuration?()

A. show frame-relay end-to-end
B. show frame-relay map
C. show frame-relay lmi
D. show frame-relay pvc

最新試題

Which pairing reflects a correct protocol-and-metric relationship?()

題型:單項選擇題

A network administrator needs to configure a serial link between the main office and a remote location.The router at the remote office is a non-cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?()

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?()

題型:單項選擇題

You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the max number of subnets.Which network address and subnet mask meet this requirement?()

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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

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

題型:單項選擇題

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

題型:單項選擇題

Which command is used to display the collection of OSPF link states?()

題型:單項選擇題

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

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?()

題型:單項選擇題