多項選擇題Which of the following are actual varieties of network crosstalk?()

A. near-end crosstalk(NEXT)
B. middle open-end crosstalk(MOEXT)
C. power sum near-end crosstalk(PSNEXT)
D. jitterry crosstalk(JEXT)
E. far end crosstalk(FEXT)


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2.單項選擇題What is the maximum data rate specified by the IEEE 802.11B standard for wireless LANS?()

A. 10 Mbps
B. 11 Mbps
C. 54 Mbps
D. 100 Mbps
E. none of the above

3.單項選擇題Which IEEE standard is used to define Wi-Fi?()

A. IEEE 802.3
B. IEEE 802.5
C. IEEE 802.11h
D. IEEE 802.11c
E. IEEE 802.11

4.單項選擇題Which of the following data network would you implement if you wanted a wireless network that had a relatively high data rate, but was limited to very short distances?()

A. Broadband personal comm. Service (PCS)
B. Broadband circuit
C. Infrared
D. Spread spectrum
E. Cable

5.多項選擇題When you compare the differences between half-duplex and full-duplex Ethernet,which of the following characteristics are exclusive to half-duplex?()

A. Half-duplex Ethernet operates in a shared collision domain.
B. Half-duplex Ethernet operates in an exclusive broadcast domain.
C. Half-duplex Ethernet has efficient throughput.
D. Half-duplex Ethernet has lower effective throughput.
E. Half-duplex Ethernet operates in an exclusive collision domain.

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A technician at TestKing needs to update the network documentation. One of the tasks includes documenting the name of the IOS image file of each router in the network.Which commands could be used to find this information?()

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A router with a serial interface will be used for an ISDN link.What other function group devices are required to complete the connection to the service provider? ()

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A Router with a BRI/T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? ()

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Which characteristics are representative of a link-state routing protocol?()

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Five minutes after issuing the show running-config command, a technician enters the command again and notices that several access list statements have been altered. Because of this, the technician believes that the router is being configured by an unknown person through Telnet. Before changing the router passwords, the technician would like to discover if anyone is connected to the router by Telnet and stop them from making further changes.Which commands will accomplish these options?()

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Which of the following correctly describe steps in the OSI data encapsulation process?()

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Which of the following if addresses can be assigned to host devices?()

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Which of the following statements regarding routed and routing protocols are true?()

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What is a global command?()

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TestKing.com has allocated the IP add 199.144.27.0 is its network, to provide flexibility for the LAN design, a subnet mask of 255.255.255.240 has been chosen. Which of the following address can be assigned to LAN on the resulting subnets.()

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