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.
A.lowest port MAC address
B.port priority number and MAC address.
C.VTP revision number
D.highest port priority number.
E.pathcost
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
一個(gè)網(wǎng)絡(luò)管理員配置了兩臺(tái)交換機(jī)London和Madrid，讓它們使用VTP。但是，兩臺(tái)交換機(jī)之間沒(méi)有共享VTP信息，根據(jù)下圖，回答交換機(jī)之間沒(méi)有分享VTP信息的原因是（）。
A.VTP版本配置錯(cuò)誤
B.VTP工作模式配置錯(cuò)誤
C.VTP域名配置錯(cuò)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
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.
A.會(huì)話層
B.協(xié)議層
C.數(shù)據(jù)鏈路層
D.訪問(wèn)層
E.網(wǎng)絡(luò)層
F.應(yīng)用層
最新試題
請(qǐng)參見(jiàn)圖示。哪種邏輯拓?fù)涫菍?duì)圖示網(wǎng)絡(luò)的準(zhǔn)確描述？（）
請(qǐng)參見(jiàn)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？（）
請(qǐng)參見(jiàn)圖示。網(wǎng)絡(luò)技術(shù)人員試圖確定主機(jī)A 的正確IP 地址配置。以下哪一項(xiàng)是主機(jī)A 的有效配置？（）
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？（）
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)X 和主機(jī)Y 與本地網(wǎng)絡(luò)的通信受到限制。此問(wèn)題的原因是什么？（）
請(qǐng)參見(jiàn)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？（）
OSI 模型的哪兩項(xiàng)功能在第2層實(shí)現(xiàn)？（）
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？（）
請(qǐng)參見(jiàn)圖示。對(duì)于從主機(jī)A 向Web 服務(wù)器發(fā)出的網(wǎng)頁(yè)請(qǐng)求，正確的目的套接字?jǐn)?shù)字是什么？（）