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2008年上半年軟考軟件設(shè)計(jì)師考試試題(上午)
2008年上半年軟考網(wǎng)絡(luò)工程師考試試題(下午)
2008年上半年軟考軟件設(shè)計(jì)師考試試題(下午)
2008年上半年軟件水平考試程序員考試試題(上
2008年下半年軟考網(wǎng)絡(luò)工程師預(yù)測(cè)試題及答案
2008年上半年軟件水平考試程序員考試試題(下
2008下半年軟件水平考試軟件設(shè)計(jì)師押題試卷
08年上半年軟考數(shù)據(jù)庫(kù)系統(tǒng)工程師考試試題(上
2008下半年軟件水平考試程序員模擬試題及答
習(xí)題七
【問題1】訪問列表可以幫助我們控制網(wǎng)上IP包的傳輸，其主要應(yīng)用在哪幾個(gè)方面？
【問題2】標(biāo)準(zhǔn)的IP訪問列表和擴(kuò)展的IP訪問列表主要區(qū)別是什么？
【問題3】下面是一臺(tái)使用了標(biāo)準(zhǔn)訪問列表的路由器的部分配置，請(qǐng)指出其中的錯(cuò)誤并闡述原因。
access-list 1 deny 172.16.4.13 0.0.0.0
interface serial 0
ip access-group 1 out
習(xí)題八
我們?cè)谌粘９ぷ髦型ǔＪ褂胹how interface [端口及端口號(hào)] 來(lái)查看端口的運(yùn)行狀態(tài)。
下面的例子是我們?cè)诓煌闆r下看到的端口狀態(tài)行的內(nèi)容，請(qǐng)分析其產(chǎn)生的原因及解決方法。
1、
Router#show interface serial 0
Serial0 is up, line protocol is up
Hardware is HD64570
MTU 1500 bytes, BW 1544 Kbit, DLY 1000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of show interface counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 1000 bits/sec, 2 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
2、
Router#show interface serial 0
Serial0 is down, line protocol is down
Hardware is HD64570
MTU 1500 bytes, BW 1544 Kbit, DLY 1000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of show interface counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 1000 bits/sec, 2 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
3、
Router#show interface serial 0
Serial0 is up, line protocol is down
Hardware is HD64570
MTU 1500 bytes, BW 1544 Kbit, DLY 1000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of show interface counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 1000 bits/sec, 2 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
4、
Router#show interface serial 0
Serial0 is administratively down, line protocol is down
Hardware is HD64570
MTU 1500 bytes, BW 1544 Kbit, DLY 1000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of show interface counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 1000 bits/sec, 2 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
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