單項選擇題What is the effect of using the service password-encryption command?()

A.Only passwords configured after the command has been entered will beencrypted.
B.Only the enable password will be encrypted.
C.Only the enable secret password will beencrypted
D.It will encrypt the secret password and remove the enable secret password from the configuration.
E.It will encrypt all current and future passwords.


您可能感興趣的試卷

你可能感興趣的試題

1.多項選擇題Which two are advantages of static routing when compared to dynamic routing?()

A.Security increases because only the network administrator may change the routing tables.
B.Configuration complexity decreases as network size increases.
C.Routing updates are automatically sent to neighbors.
D.Route summarization is compued automatically by the router.
E.Routing traffic load is reduced when used in stub network links.
F.An efficient algorithm is used to build routing tables,using automatic updates.
G.Routing tables adapt automatically to topology changes.

2.多項選擇題以下兩個選項是工作在OSI模型的應(yīng)用層的?()

A.ping
B.Telnet
C.FTP
D.TCP
E.IP

3.單項選擇題A router has two FastEthernet interfaces and needs to connect to four vlans in the local network.How can you accomplish this task,using the fewest physical interfaces and without decreasing networkper formance?()

A.Add two more FastEthernet interfaces.
B.Add a second router to handle the vlan traffic.
C.Use a hub to connect the four vlans with a FastEthernet interface on router.
D.Implement a router-on-a-stick configuration.

4.單項選擇題哪種類型的攻擊的特點是發(fā)大量的TCP請求連接數(shù)據(jù)包到服務(wù)器?()

A.拒絕服務(wù)
B.強制疊加
C.監(jiān)聽
D.木馬

5.單項選擇題A network administrator receives an error message while tring to configure the Ethernet interface of a router with IP address 10.24.24.24/29. which statement explains the reason for this issue?()

A.The address is abroadcast address.
B.The Ehernet interface is faulty.
C.VLSM-capable routing protocols must be enable first on the router.
D.This address is a network address.

6.多項選擇題Why do large OSPF networks use a hierarchical design?()

A.to confine network instability to single areas of the network
B.to reduce the complexity of router configuration
C.to speed up convergence
D.to lower costs by replacing router swith distribution layer switches
E.to decrease latency by increasing bandwidth
F.to reduce routing overhead

7.多項選擇題

根據(jù)下圖,WLANdiagram決定了哪兩個事實?()

A.兩個cells的overlap的區(qū)域描述了一個basic service set
B.網(wǎng)絡(luò)描述了一個extended service set
C.再每個CELL中的AP必須被配置成使用channel 1
D.為了確保連通性,重疊區(qū)域必須小于10%
E.兩個訪問點應(yīng)該被配置成工作在不同的頻道

8.單項選擇題Which statement is true,as relates to classful or classless routing?()

A.RIPV1 and OSPF are classless routing protocols.
B.Classful routing protocols send the subnet mask in routing updates.
C.Automatic summarization at classful boundaries can cause problems on disc……
D.EIGRP and OSPF are classful routing protocols and summarize routes by def……

10.單項選擇題What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?()

A.lowest port MAC address
B.port priority number and MAC address
C.VTP revision number
D.highest port priority number
E.path cost

最新試題

請參見圖示。已啟用路由器的NAT 功能供PC 訪問Internet??梢詾槁酚善鹘涌赟0/0/0分配下列哪一個IP 地址?()

題型:單項選擇題

請參見圖示。網(wǎng)絡(luò)中的所有設(shè)備均使用默認配置。此拓撲中需要多少個邏輯地址范圍?()

題型:單項選擇題

在配置路由器時,網(wǎng)絡(luò)技術(shù)人員想要命名路由器。輸入hostname 命令后,技術(shù)人員會看到下列哪一項提示?()

題型:單項選擇題

請參見圖示。某用戶想要查看當前的配置。圖中所示為ipconfig/all 命令的輸出。從此輸出可以得到哪三項結(jié)論?()

題型:多項選擇題

請參見圖示。網(wǎng)絡(luò)中的主機A 正在向主機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,哪兩項是正確的?()

題型:多項選擇題

請參見圖示。主機X 和主機Y 與本地網(wǎng)絡(luò)的通信受到限制。此問題的原因是什么?()

題型:單項選擇題

請參見圖示。主機A 嘗試與主機C 建立TCP/IP 會話。在嘗試期間,路由器Y 的FastEthernet 接口fa0/1捕獲到一個幀。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,它的源MAC 地址是什么?()

題型:單項選擇題

請參見圖示。電纜1和電纜2分別按照特定的物理層要求接線。哪三個網(wǎng)段使用電纜2?()

題型:多項選擇題

請參見圖示。網(wǎng)絡(luò)中的所有設(shè)備均使用默認配置。此拓撲中存在多少個廣播域?()

題型:單項選擇題

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

題型:單項選擇題