單項(xiàng)選擇題How many subnets can be gained by subnetting 172.17.32.0/23 into a /27 mask, and how many usable host addresses will there be per subnet?()

A.8 subnets, 31 hosts
B.8 subnets, 32 hosts
C.16 subnets, 30 hosts
D.16 subnets, 32 hosts
E.A Class B address can't be subnetted into the fourth octet.


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

S0/0 on R1 is configured as a multipoint interface to communicate with R2 and R3 in the hub-and-spoke Frame Relay topology shown in the exhibit. Originally, static routes were configured between these routers to successfully route traffic between the attached networks. What will need to be done in order to use RIPv2 in place of the static routes?()

A.Configure the no ip subnet-zero command on R1, R2, and R3.
B.Dynamic routing protocols such as RIPv2 cannot be used across Frame Relay networks.
C.Configure the S0/0 interface on R1 as two subinterfaces and configure point-to-point links to R2 and R3.
D.Change the 172.16.2.0/25 and 172.16.2.128/25 subnetworks so that at least two bits are borrowed from the last octet.
E.Change the network address configuration to eliminate the discontiguous 172.16.2.0/25 and 172.16.2.128/25 subnetwork.

4.單項(xiàng)選擇題What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-treetopology?()

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

5.單項(xiàng)選擇題A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5.What command should be issued to accomplish this task?()

A.access-list 101 deny tcp192.168.1.1280.0.0.15192.168.1.50.0.0.0eq23 access-list 101 permit ip any any
B.access-list 101 deny tcp192.168.1.1280.0.0.240192.168.1.50.0.0.0eq23 access-list101permit ip any any
C.access-list 1 deny tcp192.168.1.1280.0.0.255192.168.1.50.0.0.0eq21 access-list1permit ip any any
D.access-list 1 deny tcp192.168.1.1280.0.0.15host192.168.1.5eq23 access-list1permit ip any any

6.單項(xiàng)選擇題

一個網(wǎng)絡(luò)管理員配置了兩臺交換機(jī)London和Madrid,讓它們使用VTP。但是,兩臺交換機(jī)之間沒有共享VTP信息,根據(jù)下圖,回答交換機(jī)之間沒有分享VTP信息的原因是()。

A.VTP版本配置錯誤
B.VTP工作模式配置錯誤
C.VTP域名配置錯誤
D.VTP的pruning mode被禁止了
E.VTP的V2 mode被禁止了
F.VTPtraps generation被禁止了

7.單項(xiàng)選擇題Assuming default setting,how can you erase the VTP database of VLANs on a CISCO IOS switch running in VTP server mode?()

A.Enable VTP pruning
B.From privileged mode,erase the startup configuration file,then reload.
C.From privileged mode,erase the vlan date file,then reload.
D.Cycle the switch power.

9.多項(xiàng)選擇題

根據(jù)下圖,圖中兩個設(shè)備是網(wǎng)絡(luò)中僅有的CISCO設(shè)備,兩個設(shè)備間的串行鏈路的掩碼255.255.255.252,在下面的答案中,哪三個是正確的?()


A.Manchester的串行鏈路的地址為10.1.1.1
B.Manchester的串行鏈路的地址為10.1.1.2
C.London路由器是CISCO2610
D.London路由器是CISCO2611
E.路由器Manchester的Serial0/0端口收到CDP信息
F.路由器London的Serial0/0端口收到CDP信息

10.單項(xiàng)選擇題

An access list was written with the four statements shown in the graphic.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-list10 permit 172.29.16.00.0.0.255
B.access-list10 permit 172.29.16.00.0.1.255
C.access-list10 permit 172.29.16.00.0.3.255
D.access-list10 permit 172.29.16.00.0.15.255
E.access-list10 permit 172.29.0.00.0.255.255

最新試題

請參見圖示。RouterB 已經(jīng)過正確配置。RouterA 的以太網(wǎng)接口Fa0/0已使用如圖所示的命令進(jìn)行配置。但是,從RouterA 的Fa0/0接口無法成功ping 通RouterB 的Fa0/0接口。應(yīng)在RouterA 上采取什么措施來解決此問題?()

題型:單項(xiàng)選擇題

請參見圖示。哪種邏輯拓?fù)涫菍D示網(wǎng)絡(luò)的準(zhǔn)確描述?()

題型:單項(xiàng)選擇題

請參見圖示。對于從主機(jī)A 向Web 服務(wù)器發(fā)出的網(wǎng)頁請求,正確的目的套接字?jǐn)?shù)字是什么?()

題型:單項(xiàng)選擇題

要將數(shù)據(jù)包發(fā)送到遠(yuǎn)程網(wǎng)絡(luò),應(yīng)使用哪種設(shè)備?()

題型:單項(xiàng)選擇題

請參見圖示。主機(jī)A 嘗試與主機(jī)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(xiàng)選擇題

在Cisco IOS 設(shè)備中,啟動配置文件存儲于何處?()

題型:單項(xiàng)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(xiàng)選擇題

請參見圖示。主機(jī)A 正在訪問多臺服務(wù)器。結(jié)合使用什么端口號和地址即可唯一識別特定服務(wù)器上運(yùn)行的特定進(jìn)程?()

題型:單項(xiàng)選擇題

請參見圖示。公司路由器由于故障被更換。更換路由器之后,Education 辦公室內(nèi)的主機(jī)C 和D 能夠相互ping 通,但是無法訪問Accounts 辦公室內(nèi)的主機(jī)。此問題的原因可能是什么?()

題型:單項(xiàng)選擇題

路由器使用哪一項(xiàng)信息來確定源主機(jī)和目的主機(jī)之間的路徑?()

題型:單項(xiàng)選擇題