多項選擇題Which two statements about static NAT translations are true?()

A.They are always present in the NAT table.
B.They allow connection to be initiated from the outside.
C.They can be configured with access lists,to allow two or more connections to be initiated from the outside.
D.They require no inside or outside interface markings because addresses are statically defined.


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1.單項選擇題Which single access list statement will combine all four of these statements into a single statement that will have exactly the same effect()。

A.access-list 10 permit 172.29.16.0 0.0.0.255
B.access-list 10 permit 172.29.16.0 0.0.1.255
C.access-list 10 permit 172.29.16.0 0.0.3.255
D.access-list 10 permit 172.29.16.0 0.0.15.255
E.access-list 10 permit 172.29.0.0 0.0.255.255

2.單項選擇題All WAN links inside the ABC University network use PPP with CHAP for authentication security. Which command will display the CHAP authentication process as it occur between two routers in the network?()

A.show chap authentication
B.show interface serial0
C.debug ppp authentication
D.debug chap authentication
E.show ppp authentication chap

3.單項選擇題

根據(jù)下圖,網(wǎng)絡(luò)管理員如此配置的RA的原因是?()

A.讓students訪問Internet
B.阻止students訪問RA的命令提示符
C.阻止管理員訪問RA的控制臺
D.讓administrators訪問Internet
E.阻止students訪問Internet
F.阻止students訪問Admin的網(wǎng)絡(luò)

5.單項選擇題What is one reason that WPA encryption is preferred over WEP?()

A.A WPA key is longer and requires more special characters than the WEP key.
B.The access point and the client are manually configured with different WPA key values.
C.WPA key values remain the same until the client configuration is changed.
D.The values of WPA keys can change dynamically while the system is used.

7.單項選擇題Which additional configuration step is necessary in order to connect to an access point that has SSID broadcasting disabled?()

A.Set the SSID value in the client software to public.
B.Configure open authentication on the AP and the client.
C.Set the SSID value on the client to the SSID configured on the AP.
D.Configured MAC address filtering to permit the client to connect to the AP.

8.單項選擇題

根據(jù)下圖,Switch-1需要往一臺MAC地址為00b0.d056.efa4的主機發(fā)數(shù)據(jù),Switch-1會如何處理這些數(shù)據(jù)?()

A.Switch-1會丟棄該數(shù)據(jù),因為它沒有該MAC地址條目
B.Switch-1會防洪該數(shù)據(jù)到所有的接口,除了該數(shù)據(jù)的源接口
C.Switch-1會發(fā)送ARP請求到所有的接口,除了該數(shù)據(jù)的源接口
D.Switch-1會往默認(rèn)網(wǎng)關(guān)發(fā)送該數(shù)據(jù)

10.多項選擇題What functions do routers perform in a network (Choose two.)()。

A.packet switching
B.access layer security
C.path selection
D.VLAN membership assignment
E.bridging between LAN segments
F.microsegmentation of broadcast domai

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