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401. ³£¼ûL2 ½»»»»úµÄMAC µØÖ·±íÊÇÓÉMAC µØÖ·ºÍ½»»»»úµÄ£¨ £©½¨Á¢µÄÓ³Éä¹Øϵ¡£ A. RARP ±í B. ´«Êä½éÖÊ C. ¶Ë¿Ú D. ARP ±í Answer: C

402. ¶ą̀¼ÆËã»úͨ¹ýÍøÏßÁ¬½Óµ½Ò»¸öHUB ÉÏ£¬ÔÚÂß¼­ÉÏÕâÖֽṹΪ A. ÐÇÐÍÍØÆÓ B. Ê÷ÐÍÍØÆÓ C. Íø×´ÍØÆÓ D. »·ÐÍÍØÆÓ E. ×ÜÏßÍØÆÓ Answer: E

403. L2 ½»»»»úÔÚת·¢Ê±²éMAC ת·¢±í£¬¶ÔÓÚ±íÖв»°üº¬µÄµØÖ·£¬Í¨¹ý£¨ £©µÄ·½Ê½×ª·¢¡£ A. ×é²¥ B. ¹ã²¥ C. µ¥²¥ D. ²éÕÒ·ÓÉ Answer: B

404. IP ÍøÂçÏàͬÍø¶ÎÄÚ²¿µÄͨÐÅ£¬Í¨¹ý£¨ £©¹¦ÄÜÍê³É»¥Í¨¡£ A. ÎïÀí²ã B. ¶þ²ã C. Èý²ã D. Ó¦Óòã Answer: B

405. L3 ½»»»»ú¸ù¾ÝÒÔÌ«ÍøÖ¡µÄ£¨ £©µØÖ·ÓòµÄµØÖ·À´ÅжÏÊǽøÐжþ²ãת·¢»¹ÊÇÈý²ãת·¢¡£ A. Ä¿µÄMAC B. Ô´MAC C. Ä¿µÄIP D. Ô´IP Answer: A

406. L3 ½»»»»úµÄÖ÷ÒªÌص㣬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨ £©¡£ A. ÔÚ¾ßÓжþ²ã¹¦ÄܵÄͬʱÌṩÈý²ã¹¦ÄÜ

B. Ðí¶àÈý²ã½»»»»úÓÃÈý²ã¾«È·²éÕÒʵÏÖÈý²ãת·¢

C. ´ó²¿·ÖÈý²ã½»»»»úÖ»ÌṩÒÔÌ«Íø½Ó¿ÚºÍATM ¾ÖÓòÍø·ÂÕæ½Ó¿Ú

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407. ÏÂÃæÄÄÒ»ÖÖÇé¿ö»áÈöą̀¹¤×÷Õ¾´¦ÓÚͬһ¸ö³åÍ»ÓòÉÏ A. ¶ą̀¹¤×÷վͨ¹ýÍøÏßÁ¬½Óµ½Ò»¸öHUB

B. ¶ą̀¹¤×÷վͨ¹ýÍøÏßÁ¬½Óµ½Ò»¸öÒÔÌ«Íø½»»»»ú C. ¶ą̀¹¤×÷վͨ¹ýÍøÏßÁ¬½Óµ½Ò»¸ö·ÓÉÆ÷ D. ¶ą̀¹¤×÷վͨ¹ýÍøÏßÁ¬½Óµ½Ò»¸öÍøÇÅ Answer: A

408. ¹ØÓÚHUB ÌṩµÄ¹¦Äܲ»ÕýÈ·µÄÊÇ£º A. ¹¤×÷ÔÚÎïÀí²ã

B. ÊÇÒ»ÖÖ¹²ÏíµÄÍøÂçÉ豸£¬¼´Ã¿¸öʱ¿ÌÖ»ÄÜÓÐһ̨É豸·¢ËÍÊý¾Ý C. ¹¤×÷ÔÚÊý¾ÝÁ´Â·²ã

D. ¾ßÓжԶþ½øÖƱÈÌØÁ÷½øÐÐÕûÐηŴó£¬Ôö¼Ó´«Ë;àÀëµÄ×÷Óà Answer: C

409. 80 Äê´úÄ©ÆÚ£¬·ÇÆÁ±ÎË«½ÊÏßUTP ³öÏÖ£¬²¢Ñ¸Ëٵõ½¹ã·ºµÄÓ¦Óá£UTP µÄÓÅÊÆÔÚÓÚ£º A. ¼Û¸ñµÍÁ® B. ÖÆ×÷¼òµ¥

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D. ÎïÀíÍØÆ˺ÍÂß¼­ÍØÆËÒÀ¾ÉÊÇ×ÜÏßµÄ Answer: ABC

410. ÔÚÒÔÌ«ÍøÖУ¬Ïû³ý³åÍ»µÄºÏÀí·½Ê½ÊÇ A. Ôö¼ÓÏßÀµij¤¶È B. ¼õÉÙÊý¾Ý±¨Îĵķ¢ËÍ

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D. ʹÓý»»»»ú»òÍøÇÅÀ´È¡´úHUB ºÍÖмÌÆ÷ Answer: D

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B. ½»»»»úÒ»¸ö¶Ë¿ÚÁ¬½ÓµÄÍøÂçÉÏ·¢ÉúµÄ³åÍ»»áÓ°ÏìÁíÍâÒ»¸ö¶Ë¿ÚÁ¬½ÓµÄÍøÂç C. ÓÃÍøÇÅÀ´È¡´úÒ»¸öÍøÂçÖеÄHUB ¿ÉÒÔÔö¼ÓÕâ¸öÍøÂçÖгåÍ»ÓòÊýÄ¿ D. ¼õÉÙÒ»¸öÍøÂçÉϵÄÖ÷»úÊýÁ¿¿ÉÒÔ½µµÍ³åÍ»µÄ·¢ÉúµÄ¸ÅÂÊ Answer: B

412. ½»»»»úÊÇ»ùÓÚ£¨ £©½øÐÐÊý¾Ýת·¢µÄÉ豸 A. Ô´MAC µØÖ· B. Ä¿µÄMAC µØÖ· C. Ô´IP µØÖ· D. Ä¿µÄIP µØÖ· Answer: B

413. ¶þ²ãÒÔÌ«Íø½»»»»ú¸ù¾Ý¶Ë¿Ú½ÓÊÕµ½µÄ±¨Îĵģ¨ £©Éú³ÉµØַת·¢±í A. Ô´MAC µØÖ· B. Ä¿µÄMAC µØÖ· C. Ô´IP µØÖ· D. Ä¿µÄIP µØÖ· Answer: A

414. 100BaseT4 ÒÔÌ«Íø¼¼ÊõµÄÏßÀÂÀàÐÍ°üÀ¨ A. 3 ÀàUTP

B. 4 ÀàUTP C. 5 ÀàUTP D. 6 ÀàUTP Answer: ABC

415. ¶Ë¿Ú¾ÛºÏ½«¶à¸öÁ¬½ÓµÄ¶Ë¿ÚÀ¦°ó³ÉΪһ¸öÂß¼­Á¬½Ó£¬À¦°óºóµÄ´ø¿íÊÇ£¨ £©¡£ A. ÈÎÒâÁ½¸ö³ÉÔ±¶Ë¿ÚµÄ´ø¿íÖ®ºÍ B. ËùÓгÉÔ±¶Ë¿ÚµÄ´ø¿í×ÜºÍ C. ËùÓгÉÔ±¶Ë¿Ú´ø¿í×ܺ͵ÄÒ»°ë D. ´ø¿í×î¸ßµÄ³ÉÔ±¶Ë¿ÚµÄ´ø¿í Answer: B

416. °Ñ±»¾µÏñ¶Ë¿ÚµÄ½ø³öÊý¾Ý±¨ÎÄÍêÈ«¿½±´Ò»·Ýµ½¾µÏñ¶Ë¿Ú£¬ÕâÖÖ¾µÏñ·½Ê½ÊÇ»ùÓÚ£¨ £©µÄ¾µÏñ¡£ A. Á´Â· B. ¶ÔµÈÌå C. Á÷ D. ¶Ë¿Ú Answer: D

417. ¶Ë¿Ú¾µÏñµÄÅäÖÃÖУ¬ÒÔÏÂÄÄЩÊDZØÐëÅäÖõIJ½Ö裨 £©¡£ A. redirect B. acl C. classify D. behavior Answer: B

418. ÒÔÌ«Íø¼¼ÊõµÄ×ÔЭÉ̹¦ÄÜÓÉ£¨ £©ÊµÏÖ£¬Òò´Ë²¢²»Ê¹ÓÃרÓÃÊý¾Ý±¨ÎÄ¡£ A. Ó¦Óòã B. ÍøÂç²ã C. Êý¾ÝÁ´Â·²ã D. ÎïÀí²ãоƬ Answer: D

419. ±ê×¼ÒÔÌ«ÍøÖ¡Êý¾Ý×ֶεij¤¶ÈΪ( )×Ö½Ú A. 40-1500 B. 46-1500 C. 64-1500 D. 64-1518 Answer: B

420. ͨ¹ý×¥°ü¹¤¾ß×¥µ½Ò»¸öÒÔÌ«ÍøÖ¡£¬·¢ÏÖ¸ÃÖ¡µÄType/Length ×ֶεÄֵΪ0x0800£¬ÏÂÃæ¶Ô¸ÃÖ¡ÃèÊöÕýÈ· µÄÊÇ

A. ¸ÃÖ¡µÄÖ¡½á¹¹ÊÇEthernet_II B. ¸ÃÖ¡µÄÖ¡½á¹¹ÊÇ802.3 C. ¸ÃÖ¡³ÐÔصÄÊÇÒ»¸öIP ±¨ÎÄ D. ¸ÃÖ¡³ÐÔصÄÊÇÒ»¸öIPX ±¨ÎÄ Answer: AC

421. ÔÚ»ªÎªµÄ½»»»»úÖУ¬Í¨¹ý£¨ £©ÃüÁî¿ÉÒ԰Ѷ˿ڵÄË«¹¤Ä£Ê½ÉèΪ×ÔЭÉÌ A. duplex full B. duplex half

C. duplex auto D. undo duplex Answer: CD

422. ÒÔÏÂÄÄÌõÃüÁîÓÃÀ´ÉèÖÃÒÔÌ«Íø¶Ë¿Ú£¬ÒÔ±£Ö¤ÔÚÁ´Â··¢ÉúÓµÈûʱ»º³åÇø²»»áÒç³ö A. flow on B. flow-control C. flow control D. enable flow-control Answer: B

423. ÔÚÈ«Ë«¹¤»·¾³ÖУ¬µ±¶Ë¿Ú·¢Éú×èÈûʱ£¬½»»»»úÏòÐÅÏ¢Ô´·¢ËÍ\Ö¡£¬¸æËßÐÅÏ¢Ô´ÔÝÍ£Ò»¶Îʱ¼äÔÙ·¢

ËÍÐÅÏ¢¡£ÕâÖÖͨ¹ý\Ö¡À´ÊµÏÖÁ÷¿ØµÄ·½·¨ÊÊÓÃÓÚÄÄЩ»·¾³ A. Ò»¶ÔÖÕ¶Ë

B. Ò»¸ö½»»»»úºÍÒ»¸öÖÕ¶Ë C. Îȶ¨×´Ì¬µÄÍøÂçÓµÈû D. ½»»»»úºÍ½»»»»úÖ®¼äµÄÁ´Â· E. ¶Ëµ½¶ËÁ÷Á¿¿ØÖÆ Answer: ABD

424. Á½Ì¨»ªÎªÖеͶ˽»»»»úͨ¹ý¾ÛºÏ¶Ë¿Ú½øÐÐͨÐÅ£¬ÏÂÁÐÒòËØÖÐÁ½¶Ë±ØÐëÒ»ÖµÄÓÐ A. ½øÐоۺϵÄÁ´Â·µÄÊýÄ¿ B. ½øÐоۺϵÄÁ´Â·µÄËÙÂÊ C. ½øÐоۺϵÄÁ´Â·µÄË«¹¤·½Ê½ D. STP¡¢QoS¡¢VLAN Ïà¹ØÅäÖà Answer: ABCD

425. ÒÔÌ«Íøµç½Ó¿Ú¿ÉÒÔ¹¤×÷ÔÚ3 ÖÖË«¹¤Ä£Ê½£¬ÒÔÌ«Íø¹â½Ó¿ÚÖ»Äܹ¤×÷ÔÚ£¨ £©¡£ A. È«Ë«¹¤ B. °ëË«¹¤ C. ×ÔЭÉÌ D. µ¥¹¤ Answer: A

426. ¶Ë¿Ú¾ÛºÏÊǽ«¶à¸ö¶Ë¿Ú¾ÛºÏÔÚÒ»ÆðÐγÉ1 ¸ö»ã¾Û×飬ÒÔʵÏÖ³ö/È븺ºÉÔÚ¸÷³ÉÔ±¶Ë¿ÚÖеķֵ£¡£¶Ë¿Ú¾Û

ºÏÔÚ£¨ £©ÉÏʵÏÖ¡£ A. ÎïÀí²ã B. Êý¾ÝÁ´Â·²ã C. ÍøÂç²ã D. ´«Êä²ã Answer: B

427. STP ÊÇ£¨ £©µÄËõд A. ¿ìËÙÉú³ÉÊ÷ЭÒé B. ×î¶Ì·¾¶Ê÷ЭÒé C. Éú³ÉÊ÷ЭÒé D. ¹²ÏíÊ÷ Answer: C

428. ÆðÓÃÁËSTP µÄ½»»»»ú£¬ËüµÄÒ»¸ö¶Ë¿Ú´Ólearning ״̬תµ½forwarding ״̬Ҫ¾­ÀúÒ»¸öforwarding delay,

ĬÈÏÕâ¸öforwarding delay ÊÇ£¨ £©Ãë A. 10 B. 15 C. 20 D. 30 Answer: B

429. ÒÔϹØÓÚÉú³ÉÊ÷ЭÒéÖÐLearning ״̬ÃèÊö´íÎóµÄÊÇ A. Learning ״̬µÄ¶Ë¿Ú¿ÉÒÔÊÕ·¢BPDU ±¨ÎÄ B. Learning ״̬µÄµÄ¶Ë¿Ú¿ÉÒÔѧϰ±¨ÎÄÔ´MAC µØÖ·

C. Learning ״̬µÄ¶Ë¿ÚֻѧϰԴMAC µØÖ·£¬²»×ª·¢Êý¾Ý±¨ÎÄ D. Learning ״̬µÄ¶Ë¿Ú¿ÉÒÔת·¢²¿·ÖÊý¾Ý±¨ÎÄ Answer: D

430. ÒÔϹØÓÚÉú³ÉÊ÷ЭÒéÖÐBlocking ״̬ÃèÊö´íÎóµÄÊÇ A. Blocking ״̬µÄ¶Ë¿Ú¿ÉÒÔ½ÓÊÕBPDU ±¨ÎÄ B. Blocking ״̬µÄ¶Ë¿Ú²»Ñ§Ï°±¨ÎÄÔ´MAC µØÖ· C. Blocking ״̬µÄ¶Ë¿Ú²»×ª·¢Êý¾Ý±¨ÎÄ D. Blocking ״̬µÄ¶Ë¿Ú²»½ÓÊÕÈκα¨ÎÄ Answer: D

431. ÒÔϹØÓÚÉú³ÉÊ÷ЭÒéÖÐForwarding ״̬ÃèÊö´íÎóµÄÊÇ A. Forwarding ״̬µÄ¶Ë¿Ú¿ÉÒÔ½ÓÊÕBPDU ±¨ÎÄ B. Forwarding ״̬µÄ¶Ë¿Ú²»Ñ§Ï°±¨ÎÄÔ´MAC µØÖ· C. Forwarding ״̬µÄ¶Ë¿Ú¿ÉÒÔת·¢Êý¾Ý±¨ÎÄ D. Forwarding ״̬µÄ¶Ë¿Ú¿ÉÒÔ·¢ËÍBPDU ±¨ÎÄ Answer: B

432. ÔÚSTP ЭÒéÖУ¬ÉèËùÓн»»»»úËùÅäÖõÄÓÅÏȼ¶Ïàͬ£¬½»»»»ú1 µÄMAC µØַΪ00-e0-fc-00-00-40£¬½» »»»ú2 µÄMAC µØַΪ00-e0-fc-00-00-10£¬½»»»»ú3 µÄMAC µØַΪ00-e0-fc-00-00-20£¬½»»»»ú4 µÄMAC µØַΪ00-e0-fc-00-00-80£¬Ôò¸ù½»»»»úÓ¦µ±Îª A. ½»»»»ú1 B. ½»»»»ú2 C. ½»»»»ú3 D. ½»»»»ú4 Answer: B

433. Éú³ÉÊ÷ЭÒéÔÚ´¦ÀíÁ´Â·¹ÊÕÏʱ£¬ÎªÁË·ÀÖ¹ÁÙʱ»Ø·²úÉú£¬²ÉÓÃÁË£¨ £©¶¨Ê±Æ÷ A. Hello Time B. Forward Delay C. Max Age D. Message Age Answer: B

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