單項(xiàng)選擇題How many bits are contained in each field of an IPv6 address?()

A. 24
B. 4
C. 8
D. 16


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1.單項(xiàng)選擇題For which type of connection should a straight-through cable be used?()

A. switch to switch
B. switch to hub
C. switch to router
D. hub to hub
E. router to PC

2.單項(xiàng)選擇題A system administrator installed a new switch using a script to configure it. IP connectivity was tested using pings to SwitchB. Later attempts to access NewSwitch using Telnet from SwitchA failed. Which statement is true?()

A. Executing password recovery is required.
B. The virtual terminal lines are misconfigured.
C. Use Telnet to connect to RouterA and then to NewSwitch to correct the error.
D. Power cycle of NewSwitch will return it to a default configuration.

3.單項(xiàng)選擇題A host is attempting to send data to another host on a different network. What is the first action that the sending host will take?()

A. Drop the data.
B. Send the data frames to the default gateway.
C. Create an ARP request to get a MAC address for the receiving host.
D. Send a TCP SYN and wait for the SYN ACK with the IP address of the receiving host.

4.單項(xiàng)選擇題When two hosts are trying to communicate across a network, how does the host originating the communication determine the hardware address of the host that it wants to "talk" to?()

A. RARP request
B. Show Network Address request
C. Proxy ARP request
D. ARP request
E. Show Hardware Address request

5.單項(xiàng)選擇題Which network protocol does DNS use?()

A. FTP
B. TFTP
C. TCP
D. UDP
E. SCP

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An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?()

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Which cisco ios command can help to determine the timing of various debug events,relative to each other,when you are debugging a complicated router issue?()

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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?()

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

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

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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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At which layer of the OSI model dose PPP perform?()

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

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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?()

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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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