YOMEDIA
ADSENSE
Cramsession for Network+ Certification
84
lượt xem 5
download
lượt xem 5
download
Download
Vui lòng tải xuống để xem tài liệu đầy đủ
This Cramsession will help you to prepare for the CompTia Network+ Exam. Exam topics include Knowledge of Networking, Technologies, Layer, TCP/ IP, Knowledge of Networking Practices, Installing, Supporting and Troublesshooting Networks
AMBIENT/
Chủ đề:
Bình luận(0) Đăng nhập để gửi bình luận!
Nội dung Text: Cramsession for Network+ Certification
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otice: While every precaution has been taken in the preparation of this material, neither the author nor BrainBuzz.com assumes any liability in the event of loss or damage directly or indirectly caused by any inaccuracies or incompleteness of the material contained in this document. The information in this document is provided and distributed “as-is”, without any expressed or implied warranty. Your use of the information in this document is solely at your own risk, and Brainbuzz.com cannot be held liable for any damages incurred through the use of this material. The use of product names in this work is for information purposes only, and does not constitute an endorsement by, or affiliation with BrainBuzz.com. Product names used in this work may be registered trademarks of their manufacturers. This document is protected under US and international copyright laws and is intended for individual, personal use only. For more details, visit our legal page. © 2000 All Rights Reserved – BrainBuzz.com
- %UDLQ%X]] &UDPVHVVLRQ 1HWZRUN &HUWLILFDWLRQ 1HWZRUN &HUWLILFDWLRQ I. .QRZOHGJH RI 1HWZRUNLQJ 7HFKQRORJ\ , %DVLF .QRZOHGJH , 'HPRQVWUDWH XQGHUVWDQGLQJ RI EDVLF QHWZRUN VWUXFWXUH LQFOXGLQJ • 7KH FKDUDFWHULVWLFV RI VWDU EXV PHVK DQG ULQJ WRSRORJLHV WKHLU DGYDQWDJHV DQG GLVDGYDQWDJHV o 6WDU $ VWDU SK\VLFDO WRSRORJ\ PHDQV WKDW WKH QRGHVGHYLFHV DUH DOO FRQQHFWHG WR D FHQWUDOL]HG KXE RU VZLWFK DQG LV FRPPRQO\ XVHG IRU %$6( %$6(7 RU %$6(7; 3URV FDEOLQJ LV LQH[SHQVLYH HDV\ WR ZLUH PRUH UHOLDEOH DQG HDVLHU WR PDQDJH EHFDXVH RI WKH XVH RI KXEV ZKLFK DOORZ GHIHFWLYH FDEOH VHJPHQWV WR EH URXWHG DURXQG ORFDWLQJ DQG UHSDLULQJ EDG FDEOHV LV HDVLHU EHFDXVH RI WKH FRQFHQWUDWRUV QHWZRUN JURZWK LV HDVLHU &RQV $OO QRGHV UHFHLYH WKH VDPH VLJQDO WKHUHIRUH GLYLGLQJ EDQGZLGWK PD[ FRPSXWHUV LV RQ D /$1 PD[ 873 OHQJWK LV PHWHUV DSSUR[ IW
- GLVWDQFH EHWZHHQ FRPSXWHUV LV PHWHUV o %XV D EXV SK\VLFDO WRSRORJ\ PHDQV WKDW DOO RI WKH GHYLFHV DUH FRQQHFWHG WR D FRPPRQ EDFNERQH VLJQDO LV VHQW LQ ERWK GLUHFWLRQV EXW VRPH EXVHV DUH XQLGLUHFWLRQDO FDQ EH XVHG IRU %$6( %$6( RU %52$' 3URV *RRG IRU VPDOO QHWZRUNV &RQV 'LIILFXOW WR WURXEOHVKRRW DQG ORFDWH ZKHUH WKH EUHDN LQ WKH FDEOH LV RU ZKLFK PDFKLQH LV FDXVLQJ WKH IDXOW ZKHQ RQH GHYLFH IDLOV WKH UHVW RI WKH /$1 IDLOV o 0HVK $ PHVK SK\VLFDO WRSRORJ\ LV ZKHQ HYHU\ GHYLFH RQ WKH QHWZRUN LV FRQQHFWHG WR HYHU\ GHYLFH RQ WKH QHWZRUN PRVW FRPPRQO\ XVHG LQ :$1 FRQILJXUDWLRQV 3URV KHOSV ILQG WKH TXLFNHVW URXWH RQ WKH QHWZRUN SURYLGHV UHGXQGDQF\ &RQV YHU\ H[SHQVLYH DQG QRW HDV\ WR VHW XS • 5LQJ $ ULQJ SK\VLFDO WRSRORJ\ LV ZKHQ WKH GHYLFHV DUH ZLUHG LQ D FLUFOH EXW DOPRVW DOZD\V LPSOHPHQWHG LQ D ORJLFDO ULQJ WRSRORJ\ RQ D VWDU SK\VLFDO WRSRORJ\ (DFK GHYLFH KDV D WUDQVFHLYHU ZKLFK EHKDYHV OLNH D UHSHDWHU ZKLFK PRYHV WKH VLJQDO DURXQG WKH ULQJ LGHDO IRU WRNHQSDVVLQJ DFFHVV PHWKRGV 3URV 6LJQDO GHJHQHUDWLRQ LV ORZ RQO\ WKH GHYLFH WKDW KROGV WKH WRNHQ FDQ WUDQVPLW ZKLFK UHGXFHV FROOLVLRQV
- %UDLQ%X]] &UDPVHVVLRQ 1HWZRUN &HUWLILFDWLRQ &RQV 'LIILFXOW WR ORFDWH D SUREOHP FDEOH VHJPHQW H[SHQVLYH KDUGZDUH %XV 5LQJ 6WDU 0HVK • 7KH FKDUDFWHULVWLFV RI VHJPHQWV DQG EDFNERQHV o 6HJPHQWV 7\SLFDOO\ D WUXQN RI FDEOLQJ FRQQHFWLQJ D GHYLFH WR D FRQFHQWUDWLRQ GHYLFH RU URXWLQJ GHYLFH DOVR D ORJLFDO JURXS RI GHYLFHV ZKLFK FRPPXQLFDWH ZLWKLQ D JLYHQ VXEQHW WKDW LV VHSDUDWHG E\ D EULGJH URXWHU EURXWHU VZLWFKLQJ KXE RU PXOWLSOH[HU o %DFNERQHV 7KH IRXQGDWLRQ RI WKH /$1:$1 ZKHUH WKH VHUYHUV DUH OLQNHG WRJHWKHU RQ D FRPPRQ VHULHV RI FRQFHQWUDWLRQ GHYLFHV RU WKDW DUH MXVW D IHZ KRSV DZD\ 7KLV JLYHV WKH VHUYHUV WKH PRVW EDQGZLGWK WR VHUYH RWKHU GHYLFHV LQFOXGLQJ RWKHU VHUYHUV , ,GHQWLI\ WKH IROORZLQJ • 7KH PDMRU QHWZRUN RSHUDWLQJ V\VWHPV LQFOXGLQJ 0LFURVRIW :LQGRZV 17 1RYHOO 1HW:DUH DQG 8QL[ o 06 :LQGRZV 17 $ QHWZRUNLQJ RSHUDWLQJ V\VWHP GHVLJQHG XVLQJ D 'LUHFWRU\ WR PDQDJH FHUWDLQ UHVRXUFHV 17 V SULPDU\ ILOH V\VWHP LV 17)6 1HZ 7HFKQRORJ\ )LOH 6\VWHP
- 3URYLGHV DQ LQKHUHQWO\ *8, FRQVROH DW WKH VHUYHU o 1RYHOO 1HW:DUH $ QHWZRUNLQJ RSHUDWLQJ V\VWHP GHVLJQHG XVLQJ D ELQGHU\ RU 'LUHFWRU\ 6HUYLFH WR PDQDJH PRVW UHVRXUFHV 1HWZDUH V SULPDU\ ILOH V\VWHP LV D FRPELQDWLRQ RI )$7 )LOH $OORFDWLRQ 7DEOH
- DQG '(7 'LUHFWRU\ (QWU\ 7DEOH
- 3URYLGHV DQ LQKHUHQWO\ WH[W EDVHG DQG FRPPDQG SURPSW FRQVROH DW WKH VHUYHU 8QL[ • 7KH FOLHQWV WKDW EHVW VHUYH VSHFLILF QHWZRUN RSHUDWLQJ V\VWHPV DQG WKHLU UHVRXUFHV o :LQGRZV 17 :RUNVWDWLRQ EHVW VHUYHV :LQGRZV 17 6HUYHU EHFDXVH RI WKH FRPPRQ 17)6 ILOH V\VWHP DQG WKH\ DUH RSWLPL]HG WR ZRUN EHVW ZLWK HDFK RWKHU %HVW ILOH WUDQVIHU WKURXJKSXW ZRXOG EH 17 :RUNVWDWLRQ
- %UDLQ%X]] &UDPVHVVLRQ 1HWZRUN &HUWLILFDWLRQ o 1RYHOO 1HW:DUH ZRUNV ZHOO ZLWK PRVW SRSXODU FOLHQWV 26 V VXFK DV '26 :LQGRZV :LQGRZV [ :LQGRZV 17 :RUNVWDWLRQ EXW WKH FOLHQWV WKDW VHUYHV 1HW:DUH DUH '26 IODYRUV DQG '26 EDVHG 26 V VXFK DV :LQGRZV IRU ILOH VKDULQJ 0DFLQWRVK DQG 26 ZRUN ZLWK 17 DQG 1HW:DUH EXW ZRUN EHVW ZLWK WKH 126 ZULWWHQ IRU WKHP o 8QL[ VSHFLILF FOLHQWV VXFK DV 6XQ 6SDUF VWDWLRQV ZRUN EHVW ZLWK WKHLU PDQXIDFWXUHU V 126 • 7KH GLUHFWRU\ VHUYLFHV RI WKH PDMRU QHWZRUN RSHUDWLQJ V\VWHPV o :LQGRZV 17 XVHV D GLUHFWRU\ VHUYLFH GDWDEDVH WKDW FRQWDLQV LQIRUPDWLRQ UHODWHG WR XVHUV JURXSV DQG FRPSXWHUV ,W FDQ EH UHSOLFDWHG EHWZHHQ 'RPDLQ &RQWUROOHUV E\ D VFKHGXOH RU RQ GHPDQG :LQGRZV XVHV $FWLYH 'LUHFWRU\ ZKLFK LV D KLHUDUFKLFDO VHFXULW\ PRGHO VLPLODU WR 1'6 o 1HW:DUH [ XVHV ELQGHU\ VHUYLFHV 1: [ DQG ERWK XVH 1RYHOO 'LUHFWRU\ 6HUYLFHV 1'6
- %LQGHU\ LV UHVWULFWHG WR WKH PDFKLQH LW VLWV RQ 1'6 XVHV D WUHH VWUXFWXUH o 8QL[ XVHV """ , $VVRFLDWH ,3; ,3 DQG 1HW%(8, ZLWK WKHLU IXQFWLRQV • ,3; ,QWHUQHWZRUN 3DFNHW ([FKDQJH ,W V WKH 1RYHOO 1HW:DUH GHVLJQHG SURWRFRO ZKLFK LV WKH GHIDXOW SURWRFRO GXULQJ LQVWDOODWLRQ 3DFNHW VL]HV IRU (WKHUQHW DUH DSSUR[ E\WHV IRU 7RNHQ 5LQJ WKH\ DUH DSSUR[ .E 3HUIRUPV DGGUHVVLQJ DQG URXWLQJ IXQFWLRQV 5HVLGHV LQ 1HWZRUN /D\HU 5HTXLUHV VRPH FRQILJXUDWLRQ • ,3 ,QWHUQHW 3URWRFRO '2' VWDQGDUG GHVLJQHG IRU $53$QHW %DVHG RQ WZR PRGHOV WKH '2' PRGHO OD\HUV
- DQG WKH 26, PRGHO OD\HUV
- ZKLFK LV WKH :LQGRZV 17 DQG 8QL[ GHIDXOW SURWRFRO GXULQJ LQVWDOODWLRQ 5HTXLUHV D ORW RI FRQILJXUDWLRQ ,3 IXQFWLRQV RQ WKH ,QWHUQHW OD\HU RI WKH '2' PRGHO DQG RQ WKH 1HWZRUN OD\HU RI WKH 26, PRGHO $ FRQQHFWLRQOHVV SURWRFRO UHVSRQVLEOH IRU DGGUHVVLQJ DQG URXWLQJ SDFNHWV EHWZHHQ KRVWV • 1HW%(8, 1HW%,26 1HWZRUN %DVLF ,QSXW 2XWSXW 6\VWHP
- (QKDQFHG 8VHU ,QWHUIDFH 0LFURVRIW GHVLJQHG SURWRFRO IRU IDVW SDFNHW GHOLYHU\ LQ D VPDOO QHWZRUN ZLWKRXW PXFK FRQILJXUDWLRQ LWV VKRUWFRPLQJ LV WKDW LW V QRW URXWDEOH ,W RSHUDWHV RQ WKH 1HWZRUN DQG 7UDQVSRUW OD\HUV RI WKH 26, PRGHO , 'HILQH WKH IROORZLQJ WHUPV DQG H[SODLQ KRZ HDFK UHODWHV WR IDXOW WROHUDQFH RU KLJK DYDLODELOLW\ • 0LUURULQJ 5$,' 'XSOLFDWHV D SDUWLWLRQ RQ DQRWKHU SK\VLFDO GLVN ZLWK RQH GDWD FKDQQHO GULYHV XVHG IRU GDWD IRU SDULW\ DGYDQWDJHV DUH IDXOW WROHUDQFH GLVDGYDQWDJHV DUH LW V H[SHQVLYH DQG UHTXLUHV WZLFH WKH GLVN VSDFH • 'XSOH[LQJ 5$,' 'XSOLFDWHV D SDUWLWLRQ RQ DQRWKHU SK\VLFDO GLVN WKDW LV FRQQHFWHG WR DQRWKHU +DUG 'ULYH &RQWUROOHU XVLQJ WZR GDWD FKDQQHOV VLPXOWDQHRXVO\ WZR GDWD FDEOHV DQG WZR '$6' XVHG IRU GDWD IRU SDULW\
- %UDLQ%X]] &UDPVHVVLRQ 1HWZRUN &HUWLILFDWLRQ DGYDQWDJHV DQG GLVDGYDQWDJHV DUH WKH VDPH DV PLUURULQJ EXW GXSOH[LQJ SURYLGHV PXFK IDVWHU UHDG VSHHGV WKDQ PLUURULQJ • 6WULSLQJ ZLWK DQG ZLWKRXW SDULW\
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• 9ROXPHV DUH DFWLYH VHJPHQWV RI D SK\VLFDO VHUYHU KDUG GULYH ZKLFK PD\ EH IXOO\ FRQWDLQHG LQ D VLQJOH KDUG GULYH VSDQQHG RYHU VHYHUDO GLVNV RU PXOWLSOH YROXPHV FDQ RFFXS\ RQH KDUG GULYH • 7DSH EDFNXS RIIOLQH VWRUDJH DQG LV HDVLO\ UHPRYDEOH VORZ UHDGZULWH FRPSDUHG WR KDUG GLVN KLJK FDSDFLW\ RQ PDJQHWLF WDSH H[FHOOHQW FKRLFH IRU IDXOW WROHUDQFH EHFDXVH LW V FKHDS DQG WKH PHGLD FDQ EH VHQW HOVHZKHUH IRU SURWHFWLRQ I.1.5 'HILQH WKH OD\HUV RI WKH 26, PRGHO DQG LGHQWLI\ WKH SURWRFROV VHUYLFHV DQG IXQFWLRQV WKDW SHUWDLQ WR HDFK OD\HU • $SSOLFDWLRQ OD\HU
- $OORZV DSSOLFDWLRQV WR XVH WKH QHWZRUN +DQGOHV QHWZRUN DFFHVV IORZ FRQWURO DQG HUURU UHFRYHU\ PHVVDJHV DUH VHQW EHWZHHQ OD\HUV o 3URWRFROV 60% 1&3 o 6HUYLFHV 7HOQHW )73 XVH 7&3 7)73 1)6 6103 6073 XVH 7&3 o )XQFWLRQV 8VHU LQWHUIDFH ZLWK DSSOLFDWLRQV *DWHZD\V • 3UHVHQWDWLRQ OD\HU
- 7UDQVODWHV GDWD LQWR D IRUP XVDEOH E\ WKH DSSOLFDWLRQ OD\HU 7KH UHGLUHFWRU RSHUDWHV KHUH 5HVSRQVLEOH IRU SURWRFRO FRQYHUVLRQ WUDQVODWLQJ DQG HQFU\SWLQJ GDWD DQG PDQDJLQJ GDWD FRPSUHVVLRQ PHVVDJHV DUH VHQW EHWZHHQ OD\HUV o 3URWRFROV 1&3 o 6HUYLFHV 7HOQHW )73 XVH 7&3 7)73 1)6 6103 6073 XVH 7&3 o )XQFWLRQV *DWHZD\V • 6HVVLRQ OD\HU
- $OORZV DSSOLFDWLRQV RQ FRQQHFWLQJ V\VWHPV WR HVWDEOLVK D VHVVLRQ 3URYLGHV V\QFKURQL]DWLRQ EHWZHHQ FRPPXQLFDWLQJ FRPSXWHUV PHVVDJHV DUH VHQW EHWZHHQ OD\HUV o 3URWRFROV 1$ o 6HUYLFHV 7HOQHW )73 XVH 7&3 7)73 1)6 6103 6073 XVH 7&3
- %UDLQ%X]] &UDPVHVVLRQ 1HWZRUN &HUWLILFDWLRQ o )XQFWLRQV *DWHZD\V • 7UDQVSRUW OD\HU
- 5HVSRQVLEOH IRU SDFNHW KDQGOLQJ (QVXUHV HUURUIUHH GHOLYHU\ 5HSDFNDJHV PHVVDJHV GLYLGHV PHVVDJHV LQWR VPDOOHU SDFNHWV DQG KDQGOHV HUURU KDQGOLQJ VHJPHQWV RI PHVVDJH IUDJPHQWV DUH VHQW EHWZHHQ OD\HUV o 3URWRFROV 63; 7&3 8'3 DQG 1HW%(8, IXQFWLRQ RQ WKLV OD\HU o 6HUYLFHV 7&363; FRQQHFWLRQRULHQWHG FRPPXQLFDWLRQ IRU DSSOLFDWLRQV WR HQVXUH HUURU IUHH GHOLYHU\ 8'3 FRQQHFWLRQOHVV FRPPXQLFDWLRQV DQG GRHV QRW JXDUDQWHH SDFNHW GHOLYHU\ EHWZHHQ WUDQVIHU SRLQWV o )XQFWLRQV *DWHZD\V IXQFWLRQ RQ WKLV OD\HU • 1HWZRUN OD\HU
- 7UDQVODWHV V\VWHP QDPHV LQWR DGGUHVVHV 5HVSRQVLEOH IRU DGGUHVVLQJ GHWHUPLQLQJ URXWHV IRU VHQGLQJ PDQDJLQJ QHWZRUN WUDIILF SUREOHPV SDFNHW VZLWFKLQJ URXWLQJ GDWD FRQJHVWLRQ DQG UHDVVHPEOLQJ GDWD 'DWDJUDPV DUH VHQW EHWZHHQ OD\HUV o 3URWRFROV ,3; ,3 ,&03 $53 5$53 5,3 263) (*3 ,*03 1HW%(8, '/& DQG 'HF1(7 IXQFWLRQ RQ WKLV OD\HU o 6HUYLFHV VRIWZDUH KDUGZDUH DGGUHVVHV DQG SDFNHW URXWLQJ EHWZHHQ KRVWV DQG QHWZRUNV ,3,3;
ADSENSE
CÓ THỂ BẠN MUỐN DOWNLOAD
Thêm tài liệu vào bộ sưu tập có sẵn:
Báo xấu
LAVA
AANETWORK
TRỢ GIÚP
HỖ TRỢ KHÁCH HÀNG
Chịu trách nhiệm nội dung:
Nguyễn Công Hà - Giám đốc Công ty TNHH TÀI LIỆU TRỰC TUYẾN VI NA
LIÊN HỆ
Địa chỉ: P402, 54A Nơ Trang Long, Phường 14, Q.Bình Thạnh, TP.HCM
Hotline: 093 303 0098
Email: support@tailieu.vn