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网络技术基础过关题及答案 - 百度文库

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  • 2025/5/3 17:46:01

ôҪм򵥵ļ̣

ο𰸡

һѡ

1B

2B

3C

1𰸡 Գж⣺ȷTF

1F

ģʽ

1ALOHA2DWDM 𰸡

ָܼ 3TDM 𰸡

ʱָ4CSMA/C𰸡ز/ͻ

壮ʴ

14վCDMAͨš4վƬзֱΪ

A(-1-1-1+1+1-1+1+1) C(-1+1-1+1+1+1-1-1)

B(-1-1+1-1+1+1+1-1) D(-1+1-1-1-1-1+1-1)

յƬУ(-1+1-3+1-1-3+1+1)ĸվˣ͵ĴʲôҪм򵥵ļ̣ 𰸡

(-1-1-1+1+1-1+1+1)(-1+1-3+1-1-3+1+1)/8=1 (-1-1+1-1+1+1+1-1)(-1+1-3+1-1-3+1+1)/8=-1 (-1+1-1+1+1+1-1-1)(-1+1-3+1-1-3+1+1)/8=0 (-1+1-1-1-1-1+1-1)(-1+1-3+1-1-3+1+1)/8=1

24վCDMAͨš4վƬзֱΪ

A: (-1-1-1+1+1-1+1+1) B: (-1-1+1-1+1+1+1-1)

C: (-1+1-1+1+1+1-1-1) D: (-1+1-1-1-1-1+1-1)

յƬУ(-1-1+1-3-1-1+3-1)ĸվˣ͵ĴʲôҪм򵥵ļ̣ 𰸡

(-1-1-1+1+1-1+1+1)(-1-1+1-3-1-1+3-1)/8= 0 ADͱ1Bͱ0Cûзݡ

(-1-1+1-1+1+1+1-1)(-1-1+1-3-1-1+3-1)/8= 1 (-1+1-1+1+1+1-1-1)(-1-1+1-3-1-1+3-1)/8= -1 (-1+1-1-1-1-1+1-1)(-1-1+1-3-1-1+3-1)/8= 1 AûзݣBDͱ1Cͱ0

34վCDMAͨš4վƬзֱΪ

A: (-1-1-1+1+1-1+1+1) B: (-1-1+1-1+1+1+1-1) C: (-1+1-1+1+1+1-1-1) D: (-1+1-1-1-1-1+1-1)

յƬУ(+1-3+1+1+1-1+1+3)ĸվˣ͵ĴʲôҪм򵥵ļ̣ 𰸡

(-1-1+1-1+1+1+1-1)(+1-3+1+1+1-1+1+3)/8 = 0 (-1+1-1+1+1+1-1-1)(+1-3+1+1+1-1+1+3)/8 = -1 (-1+1-1-1-1-1+1-1)(+1-3+1+1+1-1+1+3)/8 = -1 Aͱ1BûзݣCD0 (-1-1-1+1+1-1+1+1)(+1-3+1+1+1-1+1+3)/8 = 1

һѡ

1²ڴĽʽǣ

AI/O̷ʽ

B㲥ʽ Dڴ湲ʽ

CDMAʽ Aܲͻ Bزͻ

CͻԱ⣬Ȼ

Dʱͻʱزͻ

3100BASE-Tý淶ʼÿγȷֱΪ

A 100Mbps, 200m C 200Mbps, 200m A㷶 C㷶 A16λ A A

B100Mbps, 100m D200Mbps, 100m B·㷶 D㷶

2˵ȷǣ

4ӻĽṹDCEĶ˵˵ӣЭοŹڣ

5MACַһ飨Ķɡ

B24λ C32λ D48λ B

C

610BASE Tõǣӽṹ 7OSI߲ģеģ㡣

C D

8̫֡Ƭ϶ʱڣ״̬Чߡ

A洢תʽ(store and forword) Bֱͨʽ(cut through) CĽֱͨʽ 9㻥ʱҪ󣨣

Aݴʺ·Э鶼ͬ Bݴͬ·Эɲͬ Cݴʿɲͬ·Эͬ Dݴʺ·Э鶼ɲͬ

10CSMA/CDIEEE802.3Э׼ڣ

Aƻ B C绥 D̫ 11IEEE802.3ĽʷʿƷǣ

AToken Ring BToken Bus CCSMA/CD DFDDI 121000 BASE TõĴǣ

A˫ Bͬ C΢ D 13ƻ˽ṹǣ

A B C D 14̫10 BASE Tĺǣ

A10Mb/sĴ̫ B10Mb/sĹ̫ C10Mb/sϸ̫ D10Mb/s˫̫ 15£ַ MAC ַ

A0D-01-22-AA CA0.01.00

B00-01-22-0A-AD-01 D139.216.000.012.002 Dѧϰ(learning)

16һ Ethernet У ABCD ̨ A B ݣô

AֻBԽյ Cݴӳ

Bܹ˲䵽B

DҲͬʱ

17ƻ˵ȷǣ

Aʱͻʱͻ Bʱͻʱͻ Cʱܺãʱܲ Dʱܲʱܺ

1810 BASE-Tý淶ʼÿγȷֱΪ

A 10Mbps, 200m C 10Mbps, 10m A4

B100Mbps, 10m D10Mbps, 100m

19MACַɣֵʮɡ

B6 C8 D10

20ŵ˵Уȷǣ

AŹ·㣬зֶΣӳһ߼ BſͨԲҪݵݽйˣЧֹ㲥 Cſ·Э鲻ͬľ DҪյݣ˴ʱ 21οģһ㲻

A

B

C· DʷʿƲ 22̫Ĭ¹ڣ״̬

A洢תʽ(store and forword) Bֱͨʽ(cut through) CĽֱͨʽfragmentfree Dѧϰ(learning) 231000 BASE FõĴǣ

CⲨ

D

24ߴý壬˵Ǵ󣨣

Aͬ¿100M̫ Bʹ˫߼ľ˽ṹΪ

CֻܵݣӦʹһԹӽ DFDDIʹùΪý

25IEEE802.4ĽʷʿƷǣ

AToken Ring BToken Bus CCSMA/CD DFDDI

261000 BASE Tý淶ʼÿγȷֱΪ

A1000Mbps, 200m B1000Mbps, 100m C2000Mbps, 200m D2000Mbps, 100m 27¹Уǣ

AMACַ洢 BǰFEP

CĿǰҪʹProgram I/Oʽڴн DI/OַжϺŲеӲͻ 28FDDIõǣӽṹ

A

B

C

29һ̫Ķ˿Ϊ100Mbit/sö˿ڿ֧ȫ˫ݣôö˿ʵʵĴΪ

A100Mbit/s B150Mbit/s C200Mbit/s D1000Mbit/s 3010Base-T̫У˵Եǣ

A10ָǴΪ10MBPS CTָ̫

BBaseָǻ

D10Base-T ̫һ

31MSAU缼ʹõ豸

A̫ BLocalTalk Cƻ DFDDI

32ij칫һС;,ܹ4̨PCҪͨһ̨õΪ5˫ߡ̨PCǣ

A400m B100m C200m D500m 33̫еĶ˿/MACַӳ

Aɽ̽

Bǽתͨѧϰ̬ CԱ

Dû 34̫֡ǣ

A1500Bytes B1482 Bytes C1518 Bytes Dû

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ôҪм򵥵ļ̣ ο𰸡 һѡ 1B 2B 3C 1𰸡 Գж⣺ȷTF 1F ģʽ 1ALOHA2DWDM 𰸡 ָܼ 3TDM 𰸡 ʱָ4CSMA/C𰸡ز/ͻ 壮ʴ 14վCDMAͨš4վƬзֱΪ A(-1-1-1+1+1-1+1+1) C(-1+1-1+1+1+1-1-1) B(-1-1+1-1+1+1+1-1) D(-1+1-1-1-1-1+1

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