A TCP/IP Transfer is diagrammed in the exhibit.A window size of three has been negotiated for this transfer. Which message will be returned from the receiver to the sender as part of this TCP/IP transfer?（）
A.Send ACK 1-3
B.Send ACK 3
C.Send ACK 4
D.Send ACK 4-6
E.Send ACK 6
F.Send ACK 7
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Host1正在試圖和Host2聯(lián)系。RouterC的e0接口是down的，以下選項(xiàng)正確的是？（）
A.RouterC會(huì)使用ICMP通知Host1&ldquo；Host2無(wú)法到達(dá)&rdquo；
B.RouterC會(huì)使用ICMP通知Host1&ldquo；Host1無(wú)法到達(dá)&rdquo；
C.RouterC會(huì)使用ICMP通知Host1，RouterA和RouterB&ldquo；Host2無(wú)法到達(dá)&rdquo；
D.RouterC會(huì)發(fā)送一個(gè)&ldquo；DestinationUnreachable&rdquo；的消息類型
E.RouterC會(huì)發(fā)送一個(gè)&ldquo；RouterSelection&rdquo；的消息類型
F.RouterC會(huì)發(fā)送一個(gè)&ldquo；SourceQuench&rdquo；的消息類型
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.
As a network administrator，you have been instructed to prevent all traffic or iginating on the LAN from entering the R2 router.Which the following command would implement the access list on the interface of theR2 router？（）
A.access-list 101 in
B.access-list 101 out
C.ipaccess-group 101 in
D.ipaccess-group 101 out
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.
A.
B.
C.
D.
E.
F.
最新試題
以下哪兩種介質(zhì)可提供高達(dá)1Gb/s 的帶寬？（）
路由器使用哪一項(xiàng)信息來(lái)確定源主機(jī)和目的主機(jī)之間的路徑？（）
何時(shí)必須使用clock rate 命令配置路由器串行接口？（）
請(qǐng)參見(jiàn)圖示。主機(jī)A 和B 無(wú)法互相通信。此問(wèn)題的原因是什么？（）
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？（）
請(qǐng)參見(jiàn)圖示。網(wǎng)絡(luò)中的所有設(shè)備均使用默認(rèn)配置。此拓?fù)渲行枰嗌賯€(gè)邏輯地址范圍？（）
請(qǐng)參見(jiàn)圖示。已啟用路由器的NAT 功能供PC 訪問(wèn)Internet。可以為路由器接口S0/0/0分配下列哪一個(gè)IP 地址？（）
OSI 模型的哪兩項(xiàng)功能在第2層實(shí)現(xiàn)？（）
請(qǐng)參見(jiàn)圖示。主機(jī)B 嘗試與主機(jī)C 建立TCP/IP 會(huì)話。在嘗試期間，San Francisco 器由器的FastEthernet 接口fa0/1捕獲到一個(gè)幀。捕獲的幀中包含源IP 地址為10.10.1.2而目的IP 地址為10.31.1.20的數(shù)據(jù)包。捕獲該幀時(shí)，它的目的MAC 地址是什么？（）
請(qǐng)參見(jiàn)圖示。RouterB 已經(jīng)過(guò)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(wú)法成功ping 通RouterB 的Fa0/0接口。應(yīng)在RouterA 上采取什么措施來(lái)解決此問(wèn)題？（）