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1、兼職工程師考試題 網(wǎng)絡(luò) 1 兼職工程師考試題 居住地 姓名 選擇題分?jǐn)?shù) 問答題分?jǐn)?shù) 一 選擇題 1 下列哪些設(shè)備可以用來劃分網(wǎng)段 e A hub B repeater C switch D bridge E router F media converters 那些設(shè)備可以用來分隔局域網(wǎng) c d 2 下列那個(gè)地址是單播地址 A 224 1 5 2 B FFFF FFFF FFFF C 192 168 24 59 30 D 255 255 255 255 E 172 31 128 255 18 3 網(wǎng)線常見線序有直通線 交叉線 反轉(zhuǎn)線三種做法 請(qǐng)把下列設(shè)備分類 并指出類別 內(nèi)及類別間連接所使用的線

2、路類型 HUB SWITCH ROUTER PC CONSOLE Answer 1 2 3 4 對(duì)以下路由協(xié)議進(jìn)行分類 并寫出各類的路有協(xié)議類型 RIPV1 RIPV2 IGRP EIGRP OSPF ISIS 5 下列那些路由協(xié)議支持 VLSM 和路由匯總 IGRP RIPV1 RIPV2 EIGRP OSPF ISIS VTP CDP 6 下列哪條訪問控制列表會(huì)阻止所有到 10 10 1 0 24 網(wǎng)段的 telnet 請(qǐng)求 A access list 15 deny telnet any 10 10 1 0 0 0 0 255 eq 23 B access list 115 deny u

3、dp any 10 10 1 0 eq telnet C access list 15 deny tcp 10 10 1 0 255 255 255 0 eq telnet D access list 115 deny tcp any 10 10 1 0 0 0 0 255 eq 23 E access list 15 deny udp any 10 10 1 0 255 255 255 0 eq 23 7 Which IP address and wildcard mask would you use in your ACL to block all the hosts in the sub

4、net 192 168 16 43 28 A 192 168 16 32 0 0 0 16 B 192 168 16 43 0 0 0 212 C 192 168 16 0 0 0 0 15 D 192 168 16 32 0 0 0 15 E 192 168 16 0 0 0 0 31 兼職工程師考試題 網(wǎng)絡(luò) 2 F 192 168 16 16 0 0 0 31 8 A standard IP access list is applied to an Ethernet interface of a router What does this standard access list filt

5、er on A The source and destination addresses B The destination port number C The destination address D The source address E All of the above 9 A brand new network application is required for the Acme Company and they are considering the use of a connectionless service What are the characteristics of

6、 a connectionless service 兩項(xiàng) A It uses a Reliable transport mechanism B It uses a Non reliable transport mechanism C It is less bandwidth intensive than connection oriented services D it uses handshaking 10 The TestKing network is implementing dialup services for their remote employees TestKing uses

7、 several different Layer 3 protocols on the network Authentication of the users connecting to the network is required for security Additionally some employees will be dialing long distance and will need callback support Which protocol is the best choice for these remote access services A 802 1 B Fra

8、me relay C HDLC D PPP E SLIP F PAP 11 TestKing has 25 computers and decides to connect the network to the Internet TestKing would like for all of the computers to have access to the Internet at the same time but TestKing only has four usable publicly routable IP addresses What should be configured o

9、n the router so that all computers can connect to the Internet simultaneously A Static NAT B Global NAT C Dynamic NAT D Static NAT with ACLs E Dynamic NAT with overload 兼職工程師考試題 網(wǎng)絡(luò) 3 12 Which of the following describe private IP addresses Choose two A Addresses chosen by a company to communicate wit

10、h the Internet B Addresses that cannot be routed through the public Internet C Addresses that can be routed through the public Internet D A scheme to conserve public addresses E Addresses licensed to enterprise or ISPs by an Internet registry organization 13 What parameters must you specify when you

11、 enable EIGRP routing A The broadcast address and AS number B The network number and AS number C EIGRP routing network number and passive interface D EIGRP routing network number and AS 14 Which of the following addresses can be assigned to a host when using a subnet mask of 255 255 254 0 Select thr

12、ee A 113 10 4 0 B 186 54 3 0 C 175 33 3 255 D 26 35 2 255 E 152 135 7 0 F 17 35 36 0 15 You need to set the default gateway of one of your TestKing switches Which command will set the default gateway to 192 168 12 1 on a Cisco switch A Switch config ip default network 192 168 12 1 B Switch config ip

13、 route default 192 168 12 1 C Switch config ip default gateway 192 168 12 1 D Switch config ip route 192 168 12 1 0 0 0 0 16 What is the purpose of the command shown below ip route 0 0 0 0 0 0 0 0 serial0 0 A It configures a router to send all packets out interface serial 0 0 B It configures a route

14、r to block routing updates from being sent out interface serial 0 0 C It configures a router as a firewall blocking all unauthorized packets from exiting serial 0 0 兼職工程師考試題 網(wǎng)絡(luò) 4 D It configures a router to send all packets for unknown destination networks out interface serial 0 0 E It configures a

15、router to drop all packets for which the destination network is unknown 17 A Class C network address has been subnetted with a 27 mask Which of the following addresses is a broadcast address for one of the resulting subnets A 201 57 78 64 B 201 57 78 87 C 201 57 78 33 D 201 57 78 254 E 201 57 78 159

16、 F 201 57 78 97 18 在 Serial x is down line protocol is down 的情況下可能是哪些故障造成 A 載波沒有收到 B 線纜出現(xiàn)問題 C Clock rate 在 DCE 端沒有設(shè)置 D 服務(wù)提供商造成的 ERROR RATE 過高 19 在 Serial x is down line protocol is down 的情況下可能是哪些故障造成 A 載波沒有收到 B 線纜出現(xiàn)問題 C Clock rate 在 DCE 端沒有設(shè)置 D 服務(wù)提供商造成的 ERROR RATE 過高 20 請(qǐng)參看一下配置 Figure 1 1 Output of

17、the HDLC show interface serial Command Table 1 1 shows the interface status conditions possible problems associated with the conditions and solutions to those problems Serial 0 is up line protocol is up Hardware is MCI Serial Internet address is 131 108 156 98 subnet mask is 255 255 255 240 MTU 1500

18、 bytes BW 1544 Kbit DLY 20000 usec rely 255 255 load 1 255 Encapsulation HDLC loopback not set keepalive set 10 sec Last input 0 00 00 output 0 00 00 output hang never 兼職工程師考試題 網(wǎng)絡(luò) 5 Last clearing of show interface counters never Output queue 0 40 5762 drops A input queue 0 75 301 drops B Five minute

19、 input rate 9000 bits sec 16 packets sec Five minute output rate 9000 bits sec 17 packets sec 5780806 packets input 785841604 bytes 0 no buffer Received 757 broadcasts 0 runts 0 giants 146124 input errors C 87243 CRC D 58857 frame E 0 overrun 0 ignored 3 abort 5298821 packets output 765669598 bytes

20、0 underruns 0 output errors 0 collisions 2941 interface resets 0 restarts 2 carrier transitions 通過以上條目判斷出 A 接口的硬件有問題 B input drop 發(fā)生在串行接口上可能因?yàn)?輸入速率超過路由器處理能力 C 輸入和輸出隊(duì)列都屬于硬件特性 一般設(shè)備不能提供修改 D 可以用 hold queue in 進(jìn)行調(diào)整輸出隊(duì)列 21 有一種對(duì)于線路的測(cè)試為 環(huán)路監(jiān)測(cè) 根據(jù)下圖標(biāo)注出了環(huán)路監(jiān)測(cè)是原理 請(qǐng)選 出正確的一個(gè) A B C 兼職工程師考試題 網(wǎng)絡(luò) 6 D 22 通過下面顯示 最終顯示為接口

21、down 的原因是由于 Figure 1 2 debug serial interface Command Output router debug serial interface Serial1 HDLC myseq 636119 mineseen 636119 yourseen 515032 line up Serial1 HDLC myseq 636120 mineseen 636120 yourseen 515033 line up Serial1 HDLC myseq 636121 mineseen 636121 yourseen 515034 line up Serial1 HDL

22、C myseq 636122 mineseen 636122 yourseen 515035 line up Serial1 HDLC myseq 636123 mineseen 636123 yourseen 515036 line up Serial1 HDLC myseq 636124 mineseen 636124 yourseen 515037 line up Serial1 HDLC myseq 636125 mineseen 636125 yourseen 515038 line up Serial1 HDLC myseq 636126 mineseen 636126 yours

23、een 515039 line up Serial1 HDLC myseq 636127 mineseen 636127 yourseen 515040 line up Serial1 HDLC myseq 636128 mineseen 636127 yourseen 515041 line up Serial1 HDLC myseq 636129 mineseen 636129 yourseen 515042 line up Serial1 HDLC myseq 636130 mineseen 636130 yourseen 515043 line up Serial1 HDLC myse

24、q 636131 mineseen 636130 yourseen 515044 line up Serial1 HDLC myseq 636132 mineseen 636130 yourseen 515045 line up Serial1 HDLC myseq 636133 mineseen 636130 yourseen 515046 line down A 鏈路發(fā)生噪聲 B CRC 循環(huán)交驗(yàn)錯(cuò)誤 C 線纜出現(xiàn)問題 D Keepalive 信號(hào)錯(cuò)誤 23 在實(shí)現(xiàn)密碼恢復(fù)后 以下哪些進(jìn)行修改操作 A 修改寄存器值 B 修改NVRAM C 修改BOOT FLASH D FLASH 24 對(duì)

25、原有設(shè)備進(jìn)行 IOS 升級(jí)操作 原有設(shè)備 show flash 如下圖 能否加載 32Mflash 和 32M RAM 的 IOS 兼職工程師考試題 網(wǎng)絡(luò) 7 答案 25 確定路由器正確的啟動(dòng)順序 A ROM TFTP server Flash B Flash TFTP server ROM C Flash NVRAM TFTP server D Flash ROM TFTP server E Flash TFTP server RAM 26 請(qǐng)配置本路由器為 tftp server IOS 為 gs7 k 9 17 只允許 172 16 101 0 網(wǎng)段 的機(jī)器進(jìn)行 TFTP 請(qǐng)求 請(qǐng)?jiān)噷懭?/p>

26、下配置 27 請(qǐng)將當(dāng)前配置和初始配置上傳到服務(wù)器 172 16 2 1 的 config 文件中 28 在 2500 設(shè)備上當(dāng)輸入 O R 0 x2142 命令進(jìn)行密碼恢復(fù)的目的是 A 重新啟動(dòng)路由器 B 啟動(dòng)時(shí)不從NVRAM中讀取配置文件 C 用于進(jìn)入ROM狀態(tài) D 保存配置修改 29 讓路由器進(jìn)入安裝模式的問題是 A 配置文件在NVRAM中間丟失 B 配置碼改為0 x2100 C Boot system命令在run config 中間丟失 D IOS 丟失 30 在楨中繼網(wǎng)絡(luò)中 在點(diǎn)對(duì)點(diǎn)子接口中需要配置 A 楨中繼在物理子接口的封裝 B 在每個(gè)子接口的DLCI號(hào) C IP地址在物理接口下

27、D 子接口建立的類型為點(diǎn)對(duì)點(diǎn) 兼職工程師考試題 網(wǎng)絡(luò) 8 二 問答題 1 如何更換 switch 的 IOS 寫一下基本命令 2 如何更換 router 的 IOS 說出一種方法和必要的命令 3 如果上傳 IOS 過程中 IOS 文件損壞 router 無法正常啟動(dòng) 如何處理 請(qǐng)簡(jiǎn)單描述 4 路由器以 WIC 1T 與專線連接 當(dāng)出現(xiàn)故障 DCD 指標(biāo)是 down 的時(shí)候說明了什么問題 5 查看路由器廣域網(wǎng)端口的指標(biāo)是以下情況 DCD up DSR up DTR up RTS up CTS up 但是數(shù)據(jù)仍然不通 說明什么問題 6 請(qǐng)簡(jiǎn)單描述 at f 命令在 modem AT 命令集里的作用