單項(xiàng)選擇題For security reasons, the network administrator needs to prevent pings into the corporate networks from hosts outside the internetwork. Which protocol should be blocked with access control lists()。

A.IP
B.ICMP
C.TCP
D.UDP


您可能感興趣的試卷

你可能感興趣的試題

2.單項(xiàng)選擇題下列哪一個(gè)命令用于指定物理接口做備份接口?()

A.[Quidway]#standby interface s0
B.[Quidway-Serial1]#standby interface s0

3.多項(xiàng)選擇題Which two features did WPAv1 add to address the inherent weaknesses found in WEP?()

A.a stronger encryption algorithm
B.key mixing using temporal keys
C.shared key authentication
D.a shorter initialization vector
E.per frame sequence counters

4.單項(xiàng)選擇題ISDN基本速率接口(BRI)速率是()。

A.16kbps
B.64kbps
C.144kbps
D.2048kbps

5.單項(xiàng)選擇題What should be part of a comprehensive network security plan()。

A.Allow users to develop their own approach to network security
B.Physically secure network equipment from potential access by unauthorized individuals
C.Encourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten
D.Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported
E.Minimize network overhead by deactivating automatic antivirus client updates

6.多項(xiàng)選擇題QuidwayS2403F以太網(wǎng)交換機(jī)的用戶權(quán)限級(jí)別有()。

A.normal
B.visit
C.monitor
D.manage
E.operator

7.單項(xiàng)選擇題A wireless client cannot connect to an 802.11b/g BSS with a b/g wireless carD.The client section of the access point does not list any active WLAN clients. What is a possible reason for this?()

A.The incorrect channel is configured on the client.
B.The client's IP address is on the wrong subnet.
C.The client has an incorrect pre-shared key.
D.The SSID is configured incorrectly on the client.

9.單項(xiàng)選擇題Which parameter can be tuned to affect the selection of a static route as a backup. when a dynamic protocol is also being used?()

A.link bandwidth
B.hop count
C.link cost
D.administrative distance
E.link delay

最新試題

在路由器上使用Router#copy running-config startup-config 命令會(huì)產(chǎn)生什么效果?()

題型:?jiǎn)雾?xiàng)選擇題

傳輸層如何讓主機(jī)能同時(shí)針對(duì)不同應(yīng)用程序維護(hù)多個(gè)通信流?()

題型:?jiǎn)雾?xiàng)選擇題

請(qǐng)參見圖示。主機(jī)A 嘗試與主機(jī)C 建立TCP/IP 會(huì)話。在嘗試期間,路由器Y 的FastEthernet 接口fa0/1捕獲到一個(gè)幀。捕獲的幀中包含源IP 地址為172.16.1.5而目的IP 地址為172.16.7.24的數(shù)據(jù)包。捕獲該幀時(shí),它的源MAC 地址是什么?()

題型:?jiǎn)雾?xiàng)選擇題

請(qǐng)參見圖示。當(dāng)計(jì)算機(jī)A 向計(jì)算機(jī)D 發(fā)送幀時(shí),哪些計(jì)算機(jī)會(huì)接收該幀?()

題型:?jiǎn)雾?xiàng)選擇題

請(qǐng)參見圖示。已啟用路由器的NAT 功能供PC 訪問Internet。可以為路由器接口S0/0/0分配下列哪一個(gè)IP 地址?()

題型:?jiǎn)雾?xiàng)選擇題

請(qǐng)參見圖示。網(wǎng)絡(luò)中的主機(jī)A 正在向主機(jī)B 發(fā)送數(shù)據(jù)段。有關(guān)所交換的數(shù)據(jù)段的流量控制如圖所示。下列關(guān)于此通信的陳述,哪兩項(xiàng)是正確的?()

題型:多項(xiàng)選擇題

請(qǐng)參見圖示。主機(jī)A 和B 無法互相通信。此問題的原因是什么?()

題型:?jiǎn)雾?xiàng)選擇題

OSI 模型的哪兩項(xiàng)功能在第2層實(shí)現(xiàn)?()

題型:多項(xiàng)選擇題

請(qǐng)參見圖示。下列哪組設(shè)備僅包含中間設(shè)備?()

題型:?jiǎn)雾?xiàng)選擇題

何時(shí)必須使用clock rate 命令配置路由器串行接口?()

題型:?jiǎn)雾?xiàng)選擇題