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多項(xiàng)選擇題A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device (Choose two.)（）。

A.hub
B.router
C.switch
D.STP
E.subinterfaces
F.VLAN

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1.單項(xiàng)選擇題 Refer to the exhibit. What will happen to HTTP traffic coming from the Internet that is destined for 172.16.12.10 if the traffic is processed by this ACL?（）

A.Traffic will be dropped per line 30 of the ACL.
B.Traffic will be accepted per line 40 of the ACL.
C.Traffic will be dropped, because of the implicit deny all at the end of the ACL.
D.Traffic will be accepted, because the source address is not covered by the ACL.

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2.多項(xiàng)選擇題國(guó)際上負(fù)責(zé)分配IP地址的專業(yè)組織劃分了幾個(gè)網(wǎng)段作為私有網(wǎng)段，可以供人們?cè)谒接芯W(wǎng)絡(luò)上自由分配使用，以下屬于私有地址的網(wǎng)段是（）。

A.10.0.0.0/8
B.172.16.0.0/12
C.192.168.0.0/16
D.224.0.0.0/8

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3.單項(xiàng)選擇題X．25協(xié)議是哪兩種設(shè)備進(jìn)行交互的規(guī)程？（）

A.PSE、PSN
B.DCE、DTE
C.DCE、PSE
D.DTE、PSE

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4.單項(xiàng)選擇題A host on the LAN is accessing an FTP server across the Internet. Which of the following addresses could appear as a source address for the packets forwarded by the router to the destination server（）。

A.10.10.0.1
B.10.10.0.2
C.199.99.9.33
D.199.99.9.57
E.200.2.2.17
F.200.2.2.18

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5.單項(xiàng)選擇題 Refer to the exhibit. What command sequence will enable PAT from the inside to outside network?（）

A.(config) ip nat pool isp-net 1.2.4.2 netmask 255.255.255.0 overload
B.(config-if) ip nat outside overload
C.(config) ip nat inside source list 1 interface ethernet1 overload
D.(config-if) ip nat inside overload

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