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ccna 1 enetwork final exam version 4 0

Tài liệu Take Assessment - ENetwork Final Exam - Network Fundamentals (Version 4.0) pdf

Tài liệu Take Assessment - ENetwork Final Exam - Network Fundamentals (Version 4.0) pdf

Quản trị mạng

... address: 19 2 .16 8 . 10 0 .19 ; Subnet Mask: 255.255.255. 248 ; Default Gateway: 19 2 .16 .1. 2 IP address: 19 2 .16 8 . 10 0. 20; Subnet Mask: 255.255.255. 2 40 ; Default Gateway: 19 2 .16 8 . 10 0 .17 IP address: 19 2 .16 8 . 10 0. 21; ... Default Gateway: 19 2 .16 8 .1. 1 IP address: 19 2 .16 8 . 10 0. 31; Subnet Mask: 255.255.255. 2 40 ; Default Gateway: 19 2 .16 8 . 10 0 .18 10 / 01 / 200 8 20: 03 van 15 file:///C:/Users/Martinos/Desktop/cisco/HTML /exam. htm Refer ... 255.255.255. 248 ; Default Gateway: 19 2 .16 8 . 10 0 .18 IP address: 19 2 .16 8 . 10 0. 22; Subnet Mask: 255.255.255. 2 40 ; Default Gateway: 10 .1. 1.5 IP address: 19 2 .16 8 . 10 0. 30; Subnet Mask: 255.255.255. 2 40 ; Default...
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Tài liệu TestKing''''s Designing Cisco Network Service Architectures Exam Version 4.1 doc

Tài liệu TestKing''''s Designing Cisco Network Service Architectures Exam Version 4.1 doc

Chứng chỉ quốc tế

... compatibility with 802 .11 b? A B C D 802 .11 a 802 .1q 802 .11 g 802 .11 p Answer: C QUESTION NO: 73 Leading the way in IT testing and certification tools, www.testking.com - 26 - 642 - 8 71 TestKing is a ... assurance Answer: A, B, D, F QUESTION NO: 64 What is the device weight limit per CallManager in a Cisco IP phone configuration? A B C D 2 500 300 0 500 0 6 500 Answer: C QUESTION NO: 65 Which of the ... than 15 00 bytes Turn off pre-fragmentation for IPSec Set the MTU value to 14 00 bytes Answer: C, D QUESTION NO: 50 Leading the way in IT testing and certification tools, www.testking.com - 19 - 642 ...
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Tài liệu CCNA Semester 4 - Skills Based Final Exam - Student Training Instructor Guidelines - Exam Overview and Administration doc

Tài liệu CCNA Semester 4 - Skills Based Final Exam - Student Training Instructor Guidelines - Exam Overview and Administration doc

Quản trị mạng

... Network E0 E1 SalesOffice Switch Serial S0/ .1 S0/.2 E1 (DCE) Switch HeadQuarters MainOffice 17 2 .16 .1. 88/ 24 202 .16 8 . 10 .0/ 24 17 2 .16 .0. 0 /16 DLCI 10 1 MainOffice Network S1 E0 17 2 .16 .1. 99/ 24 DLCI 2 01 RemoteOffice ... ip 17 2 .16 .1. 99 10 1 ! router igrp 10 network 17 2. 50. 0 .0 ip host MainOffice 17 2 .16 .0 .1 ip name-server 17 2. 50 .1. 10 no ip classless Ip route 17 2. 50. 2 .0 255.255.255 .0 17 2. 50 .1. 2 Ip route 17 2 .16 .0. 0 ... Ip route 17 2 .16 .0. 0 255.255 .0. 0 202 .16 8 . 10 .2 ip route 0. 0 .0. 0 0. 0 .0. 0 202 .16 8 . 10 .1 ip access-list 10 1 deny tcp any 17 2. 50 .1. 0 0 .0. 0.255 eq telnet ip access-list 10 1 permit ip any any banner motd...
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Tài liệu CCNA Semester 1 - Skills Based Final Exam - Student Training Guidelines - Exam Overview and Administration docx

Tài liệu CCNA Semester 1 - Skills Based Final Exam - Student Training Guidelines - Exam Overview and Administration docx

Quản trị mạng

... 19 3.5.5 . 14 2 19 3.5.5 . 14 5 - 19 3.5.5 .15 0 19 3.5.5 .15 3 - 19 3.5.5 .15 8 19 3.5.5 .16 1 - 19 3.5.5 .16 6 19 3.5.5 .16 9 - 19 3.5.5 .17 4 19 3.5.5 .17 7 - 19 3.5.5 .18 2 19 3.5.5 .18 5 - 19 3.5.5 .19 0 19 3.5.5 .19 3 - 19 3.5.5 .19 8 ... 19 3.5.5.78 19 3.5.5. 81 - 19 3.5.5.86 19 3.5.5.89 - 19 3.5.5. 94 19 3.5.5.97 - 19 3.5.5 . 10 2 19 3.5.5 . 10 5 - 19 3.5.5 .11 0 19 3.5.5 .11 3 - 19 3.5.5 .11 8 19 3.5.5 .12 1 - 19 3.5.5 .12 6 19 3.5.5 .12 9 - 19 3.5.5 .13 4 19 3.5.5 .13 7 ... Address 19 3.5.5.8 19 3.5.5 .16 19 3.5.5. 24 19 3.5.5.32 19 3.5.5 . 40 19 3.5.5 .48 19 3.5.5.56 19 3.5.5. 64 19 3.5.5.72 19 3.5.5. 80 19 3.5.5.88 19 3.5.5.96 19 3.5.5 . 10 4 19 3.5.5 .11 2 19 3.5.5 .12 0 19 3.5.5 .12 8 19 3.5.5 .13 6...
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CCNA LAB GUIDE Version 4.0 (phần 1)

CCNA LAB GUIDE Version 4.0 (phần 1)

Kỹ thuật lập trình

... bit địa IP Ví dụ 1: 17 2 .16 .0. 0 0. 0.255.255 17 2 .16 .0. 0 = 10 1 01 1 00 .00 01 0 00 0 .00 000 000 .00 000 000 0. 0.255.255 = 00 000 000 .00 000 000 .11 111 111 .11 111 111 result = 17 2 .16 .x.x 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx ... http://www.vnexperts.net 39 0. 0 .0. 7.255 = 00 000 000 .00 000 000 .00 00 01 1 1 .11 111 111 result = 10 1 01 1 00 .00 01 0 00 0 .00 001 xxx.xxxxxxxx 00 001 xxx = 00 0 01 0 00 to 00 0 01 1 11 = 8 15 xxxxxxxx = 00 000 000 to 11 111 111 = 0 255 Mọi địa ... 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx (mọi địa IP nằm khoảng từ 17 2 .16 .0. 0 17 2 .16 .255.255 tương ứng với ví dụ này) Ví dụ 2: 17 2 .16 .8 .0 0 .0. 7.255 17 2 .16 8.8 .0 = 10 1 01 1 00 .00 01 0 00 0 .00 0 01 0 00 .00 000 000 Created by: Dương Văn Toán –...
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CCNA LAB GUIDE Version 4.0

CCNA LAB GUIDE Version 4.0

Công nghệ thông tin

... bit địa IP Ví dụ 1: 17 2 .16 .0. 0 0. 0.255.255 17 2 .16 .0. 0 = 10 1 01 1 00 .00 01 0 00 0 .00 000 000 .00 000 000 0. 0.255.255 = 00 000 000 .00 000 000 .11 111 111 .11 111 111 result = 17 2 .16 .x.x 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx ... http://www.vnexperts.net 39 0. 0 .0. 7.255 = 00 000 000 .00 000 000 .00 00 01 1 1 .11 111 111 result = 10 1 01 1 00 .00 01 0 00 0 .00 001 xxx.xxxxxxxx 00 001 xxx = 00 0 01 0 00 to 00 0 01 1 11 = 8 15 xxxxxxxx = 00 000 000 to 11 111 111 = 0 255 Mọi địa ... 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx (mọi địa IP nằm khoảng từ 17 2 .16 .0. 0 17 2 .16 .255.255 tương ứng với ví dụ này) Ví dụ 2: 17 2 .16 .8 .0 0 .0. 7.255 17 2 .16 8.8 .0 = 10 1 01 1 00 .00 01 0 00 0 .00 0 01 0 00 .00 000 000 Created by: Dương Văn Toán –...
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CCNA Semester 3 - Skills Based Final Exam - Student Training Instructor Guidelines - Exam Overview and Administration

CCNA Semester 3 - Skills Based Final Exam - Student Training Instructor Guidelines - Exam Overview and Administration

Quản trị mạng

... 17 1 .17 .0 .19 0 17 1 .17 .0 .19 3 – 17 1 .17 .0. 2 54 17 1 .17 .1. 1 - 17 1 .17 .1. 62 17 1 .17 .1. 65 - 17 1 .17 .1. 126 17 1 .17 .1. 129 – 17 1 .17 .1. 1 90 17 1 .17 .1. 193 – 17 1 .17 .1. 2 54 17 1 .17 .2 .1 - 17 1 .17 .2.62 17 1 .17 .2.65 - 17 1 .17 .2 .12 6 ... 17 1 .17 .5.62 17 1 .17 .5.65 - 17 1 .17 .5 .12 6 17 1 .17 .5 .12 9 - 17 1 .17 .5 .19 0 17 1 .17 .5 .19 3 - 17 1 .17 .5.2 54 17 1 .17 .6 .1 - 17 1 .17 .6.62 17 1 .17 .6.65 - 17 1 .17 .6 .12 6 17 1 .17 .6 .12 9 - 17 1 .17 .6 .19 0 17 1 .17 .6 .19 3 - 17 1 .17 .6.2 54 ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Valid IP Address Range 17 1 .17 .4 .1 - 17 1 .17 .4. 62 17 1 .17 .4. 65 - 17 1 .17 .4 .12 6 17 1 .17 .4 .12 9 - 17 1 .17 .4 .19 0 17 1 .17 .4 .19 3 - 17 1 .17 .4. 2 54 17 1 .17 .5 .1 - 17 1 .17 .5.62...
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Tài liệu Chapter 5 - OSI Network Layer CCNA Exploration version 4.0 ppt

Tài liệu Chapter 5 - OSI Network Layer CCNA Exploration version 4.0 ppt

Quản trị mạng

... www.bkacad.com 11 Network Layer Fields • bits • Indicates version of IP used • IPv4: 01 0 0; IPv6: 01 1 0 H c vi n m ng Bách khoa - Website: www.bkacad.com 12 Network Layer Fields • • bits Indicates datagram ... www.bkacad.com 10 IPv4 packet header • Identify the major header fields in the IPv4 protocol and describe each field's role in transporting packets H c vi n m ng Bách khoa - Website: www.bkacad.com 11 Network ... www.bkacad.com 16 Network Layer Fields • bits(R, DF MF) – R(reserved): set to – DF(Don’t fragment): • 0: Fragment if necessary • 1: Do not fragment – MF(More fragment): • 0: This is the last fragment • 1: ...
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Tài liệu Chapter 4 - OSI Transport Layer CCNA Exploration version 4.0 docx

Tài liệu Chapter 4 - OSI Transport Layer CCNA Exploration version 4.0 docx

Quản trị mạng

... Website: www.bkacad.com 10 TCP Header format: H c vi n m ng Bách khoa - Website: www.bkacad.com 11 TCP Header format: Port number • Source Port 16 bits • Destination Port 16 bits H c vi n m ng ... www.bkacad.com 43 Labs H c vi n m ng Bách khoa - Website: www.bkacad.com 44 Summary H c vi n m ng Bách khoa - Website: www.bkacad.com 45 H c vi n m ng Bách khoa - Website: www.bkacad.com 46 ... www.bkacad.com 41 UDP Protocol • Describe in detail the process specified by the UDP protocol to reassemble PDUs at the destination device H c vi n m ng Bách khoa - Website: www.bkacad.com 42 UDP Protocol...
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Tài liệu CCNA LAB GUIDE Version 4.0 P2 docx

Tài liệu CCNA LAB GUIDE Version 4.0 P2 docx

Quản trị mạng

... bit địa IP Ví dụ 1: 17 2 .16 .0. 0 0. 0.255.255 17 2 .16 .0. 0 = 10 1 01 1 00 .00 01 0 00 0 .00 000 000 .00 000 000 0. 0.255.255 = 00 000 000 .00 000 000 .11 111 111 .11 111 111 result = 17 2 .16 .x.x 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx ... http://www.vnexperts.net 39 0. 0 .0. 7.255 = 00 000 000 .00 000 000 .00 00 01 1 1 .11 111 111 result = 10 1 01 1 00 .00 01 0 00 0 .00 001 xxx.xxxxxxxx 00 001 xxx = 00 0 01 0 00 to 00 0 01 1 11 = 8 15 xxxxxxxx = 00 000 000 to 11 111 111 = 0 255 Mọi địa ... 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx (mọi địa IP nằm khoảng từ 17 2 .16 .0. 0 17 2 .16 .255.255 tương ứng với ví dụ này) Ví dụ 2: 17 2 .16 .8 .0 0 .0. 7.255 17 2 .16 8.8 .0 = 10 1 01 1 00 .00 01 0 00 0 .00 0 01 0 00 .00 000 000 Created by: Dương Văn Toán –...
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Tài liệu CCNA LAB GUIDE Version 4.0 P1 pptx

Tài liệu CCNA LAB GUIDE Version 4.0 P1 pptx

Quản trị mạng

... route 0. 0 .0. 0 Khi router nhận gói liệu mà 0. 0 .0. 0 17 2 .16 . 10 .2 đích gói liệu bảng định tuyến gửi gói liệu 17 2 .16 . 10 .2 Router(config)# ip route 0. 0 .0. 0 Khi router nhận gói liệu mà 0. 0 .0. 0 Serial 0/ 0 /0 ... fa0 /0 & chassis rear Gigabit Ethernet type 0/ port fa0 /1 gi0 /0 & gi0 /1 Slot HWIC/HWICD/ Interface- s0 /0/ 0 & WIC/VWIC/ type 0/ slot/ s0 /0 /1 VIC port fa0 /0/ 0 & 0/ 0 /1 Slot HWIC/HWICD/ Interface- s0 /1/ 0 ... 0/ 0 /1 Slot HWIC/HWICD/ Interface- s0 /1/ 0 & WIC/VWIC/ type 0/ slot/ s0 /1/ 1 VIC port fa0 /1/ 0 & 0 /1/ 1 NME slot NM/NME Interface- gi1 /0 & type 1/ port gi1 /1 s1 /0 & s1 /1 3.5 Di chuyển Interface Rouer(config)#...
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Tài liệu CCNA Semester 2 - Skills Based Final Exam - Student Training Instructor Guidelines - Exam Overview and Administration doc

Tài liệu CCNA Semester 2 - Skills Based Final Exam - Student Training Instructor Guidelines - Exam Overview and Administration doc

Quản trị mạng

... CCNA Semester - Skills Based Final Exam - Student Training Instructor Guidelines - Exam Overview and Administration – Cont Exam Part – Troubleshooting – (Practical hands-on, Est time 20 min., ... Maximum time allowed to complete Exam Part is 40 minutes depending on the configuration method that is chosen Points will be deducted if your team goes over 40 minutes The required documentation ... be prepared and ready before taking the exam: Documentation Item / Grading Criteria Pts Pts Poss Rcvd Cover sheet with IP addressing scheme (1 page): 10 Include team name and members Document...
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Improving your technical writing skills Version 4.1 doc

Improving your technical writing skills Version 4.1 doc

Kỹ năng viết tiếng Anh

... guidelines Version 2 .1, 20 September 200 2 Minor corrections made Version 3 .0, 14 September 200 3 Major revision Version 4. 0, 23 September 200 3 Restructuring and editing Version 4 .1, 25 September 200 3 ... your technical writing Version 4 .1 Document change history Version 1. 0, 11 September 200 0: Derived from Norman Fenton’s ‘Good Writing’ web pages Version 2 .0, 21 September 20 01 Minor changes including ... MECHANICS 18 4 .1 AVOIDING COMMON VOCABULARY AND SPELLING ERRORS 18 4. 2 ABBREVIATIONS 19 4. 3 PUNCTUATION 19 4. 3 .1 Capital letters 20 4. 3.2 Apostrophes...
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CCNA Lab Book version 4  - Access Control List

CCNA Lab Book version 4 - Access Control List

Quản trị mạng

... ACL R2 - ACL cho phép mạng 10 .2.2 .0/ 252, 19 2 .16 8. 30. 0/ 24 b Gán ACL vào line vty c Kiểm tra kết - Thực telnet tới R2 từ R1, ta có kết bên (chú ý, R1 lấy IP nguồn 10 .1. 1 .1 để “đi” IP không phép ACL ... source” 19 2 .16 8 . 10 .1, ta có kết ping thành công, ACL không chặn phần IP Phiên tiếng Việt Trang 3/7 CCNA Lab Book version VDC Training Center Cấu hình Extend ACL R1, chặn liệu từ 19 2 .16 8 . 10 .0/ 24 đến ... từ mạng 19 2 .16 8 .11 .0/ 24 cho phép phần lại b Gán ACL vào interface nối R3 với R2, hướng “IN” c Kiểm tra hoạt động ACL - Đứng Router R1, thực lệnh Ping với lựa chọn “IP source” 19 2 .16 8 .11 .1, ta có...
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CHAPTER 1 ■ INTRODUCING THE ADO.NET 4.0 ENTITY FRAMEWORK The first version of the Entity docx

CHAPTER 1 ■ INTRODUCING THE ADO.NET 4.0 ENTITY FRAMEWORK The first version of the Entity docx

Kỹ năng nói tiếng Anh

... provider you can use SQL Server as far back as version SQL Server 200 0 up through SQL Server 200 8 Microsoft even supports SQL Server Compact Edition 12 CHAPTER ■■■ The Entity Data Model Chapter ... http://msftdbprodsamples.codeplex.com/Release/ProjectReleases.aspx?ReleaseId =18 40 7 So, let’s begin 13 CHAPTER ■ THE ENTITY DATA MODEL Taking a Database-First Approach Fire up Visual Studio 2 01 0 and create a new Windows Forms Application ... like Figure 2 - 14 Figure 2 - 14 Generate database from model Now comes the really cool part In the previous version of the EF, this basically is as far as you could go But not with 4. 0! You asked...
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CCNA 2 Final Exam New docx

CCNA 2 Final Exam New docx

Quản trị mạng

... 17 2 .16 .1. 0/ 24 [ 90/ 219 545 6] via 19 2 .16 8. 200 .1, 00 :00 :09 , Serial0 /0/ 0 O 17 2 .16 .1. 0/ 24 [11 0 / 10 12] via 19 2 .16 8. 200 .1, 00 :00 :22, Serial0 /0/ 0 R 17 2 .16 .1. 0/ 24 [12 0 /1] via 19 2 .16 8. 200 .1, 00 :00 :17 , Serial0 /0/ 0 ... R 19 2 .16 8 .1. 0/ 24 [12 0/ 3] via 19 2 .16 8 .11 0 .1, 00 :00 :17 , Serial 0 /1/ 0 • R 19 2 .16 8 .1. 0/ 24 [12 0/ 2] via 19 2 .16 8. 200 .1, 00 :00 :17 , Serial 0/ 0 /0 • R 19 2 .16 8 .1. 0/ 24 [12 0 /1] via 19 2 .16 8 . 10 0 .1, 00 :00 :17 , ... 19 2 .16 8. 200 .1, 00 :00 :09 , Ethernet0 • O 19 2 .16 8 .16 8 .0/ 24 [11 0 / 10 12] via 19 2 .16 8. 200 .1, 00 :00 :22, Ethernet0 • R 19 2 .16 8 .16 8 .0/ 24 [12 0 /1] via 19 2 .16 8. 200 .1, 00 :00 :17 , Ethernet0 • S 19 2 .16 8 .16 8 .0/ 24 [1/ 0] ...
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CCNA 1 and 2 Companion Guide, Revised (Cisco Networking Academy Program) part 4 pptx

CCNA 1 and 2 Companion Guide, Revised (Cisco Networking Academy Program) part 4 pptx

Chứng chỉ quốc tế

... the connection between theory and practice 11 02 .book Page Tuesday, May 20, 200 3 2:53 PM 11 02 .book Page Tuesday, May 20, 200 3 2:53 PM Part I CCNA 1: Networking Basics Chapter Introduction to ... Information and activities not found online 11 02 .book Page xxxiii Tuesday, May 20, 200 3 2:53 PM xxxiii ■ Accurate and concise feedback on practice exam questions ■ Learner-directed practice and ... 11 02 .book Page xxxii Tuesday, May 20, 200 3 2:53 PM xxxii reliable and unreliable transport layer protocols and details connectionless datagram (packet) delivery at the network layer Finally,...
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Dimension TM 3100 Manual Version 4.43B phần 1 pot

Dimension TM 3100 Manual Version 4.43B phần 1 pot

Kĩ thuật Viễn thông

... Dimension 3 10 0 Controller 1- 5 1- 6 1- 7 1- 8 1. 5 Dimension 3 10 0 SPM Overview 1- 10 1. 5 .1 1.5.2 1. 5.3 1. 5 .4 1. 5.5 1. 5.6 Dimension 3 10 0 Microscope Electronics Box1 - 10 Optics and Motors ... 1. 3 System Overview 1- 3 1. 3 .1 Dimension 3 10 0 SPM Features 1- 3 1. 4 Control Station Overview 1- 5 1. 4 .1 1 .4. 2 1. 4. 3 1. 4. 4 Input and Display Devices ... 1- 20 1. 7 Facilities Specifications 1- 20 1. 8 Applications 1- 21 1.9 Maintenance and Troubleshooting 1- 21 Rev B Dimension 3 10 0 Manual TOC -1 ...
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CCNA LAB GUIDE Version 4.0(Cisco Certified Network Associate) pot

CCNA LAB GUIDE Version 4.0(Cisco Certified Network Associate) pot

Chứng chỉ quốc tế

... bit địa IP Ví dụ 1: 17 2 .16 .0. 0 0. 0.255.255 17 2 .16 .0. 0 = 10 1 01 1 00 .00 01 0 00 0 .00 000 000 .00 000 000 0. 0.255.255 = 00 000 000 .00 000 000 .11 111 111 .11 111 111 result = 17 2 .16 .x.x 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx ... http://www.vnexperts.net 39 0. 0 .0. 7.255 = 00 000 000 .00 000 000 .00 00 01 1 1 .11 111 111 result = 10 1 01 1 00 .00 01 0 00 0 .00 001 xxx.xxxxxxxx 00 001 xxx = 00 0 01 0 00 to 00 0 01 1 11 = 8 15 xxxxxxxx = 00 000 000 to 11 111 111 = 0 255 Mọi địa ... 10 1 01 1 00 .00 01 0 00 0.xxxxxxxx.xxxxxxxx (mọi địa IP nằm khoảng từ 17 2 .16 .0. 0 17 2 .16 .255.255 tương ứng với ví dụ này) Ví dụ 2: 17 2 .16 .8 .0 0 .0. 7.255 17 2 .16 8.8 .0 = 10 1 01 1 00 .00 01 0 00 0 .00 0 01 0 00 .00 000 000 Created by: Dương Văn Toán –...
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CCNA LAB GUIDE Version 4.0  (phần 2)

CCNA LAB GUIDE Version 4.0 (phần 2)

Kỹ thuật lập trình

... thông ( 10 / 10 Mb/s hay 10 0 / 10 0 Mb/s) - Thông lợng tăng số lợng thông tin liên lạc đồng thời thời điểm tăng 352 Hình 4. 2.8.a Chuyển mạch đối xứng - Chuyển mạch hai port không băng thông ( 10 / 10 0 Mb/s) ... không 10 0mét Trong môi trờng mạng thông thờng, đờng horizontal có băng thông 10 Mb/s sử dụng switch chuyển mạch bất đối xứng để kết hợp port 10 Mb/s 10 0 Mb/s 3 94 Nhiệm vụ định số lợng port 10 Mb/s ... hay cáp quang cấu trúc tổng thể hệ thống cáp Mỗi trờng cáp lớp có nhiều loại nh 10 / 10 0 BASE TX CAT5, 5e UTP, STP, 10 0 BASE FX cáp quang chuẩn TIA/EIA 568 A cách bố trí kết nối dây Bạn nên đánh...
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