Let A and B be two stations attempting to transmit on an ethernet. Each has a steady queue of frames ready to send; A’s frames will be numbered A1 ‚ A2 and so on‚ and B’s similarly. Let T = 51.2 µs be the exponential backoff base unit. Suppose A and B simultaneously attempt to send frame 1‚ collide‚ and happen to
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Technology Analysis Grid Ethernet • Traditional Ethernet can be defined as follows: • Access methodology: CSMA/CD • Logical topology: Broadcast • Physical Topology: Historically—bus‚ currently—star 14 Ethernet Frame Layout 15 • • IEEE 802.3 is commonly referred to as “Ethernet”. There are differences as noted here. LAN Architecture 16 • Typical Fast Ethernet Implementation Gigabit Ethernet (aka 1000BaseX) • An upgrade to Fast Ethernet‚
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Frame it contains 339 bytes of data that was captured when inspecting a website. The frame protocol is not a real protocol. This type of protocol is used by Wireshark as a base for all protocols. The Ethernet II frame is 38 bytes of overhead data. Figure 2 51435013716000 51435013271500The Ethernet Frame is a unit of packets that is formatted into information that consists of 6 different packets on a 38 byte overhead. Preamble (7 bytes) & Delimiter (1 byte) Destination
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Unit 5 assignment 1 and definitions When performing a cable installation‚ there are a lot of things that you have to put into consideration. First‚ you want to draw up a plan. Some things that you would want to include in the plan would be: where your telecommunications rooms are located‚ what is the distance from your leased line to your core router‚ and what type of cable are you going to be using for your backbone and horizontal lines. The first thing shouldn’t be cost when you are designing
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device wants to send data to a secondary device‚ it needs to first send _______ frame. C) a SEL When a secondary device is ready to send data‚ it must wait for _______ frame. B) a poll _______ is a random access (or contention) method. C) CSMA/CD Ethernet LANs use _______ for medium access
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generated. Exercise 4.1.4 Category Maximum Speed Application 1 1Mbps VOICE ONLY( TELEPHONE WIRES) 2 4Mbps LOCAL TALK & TELEPHONE 3 16Mbps 10 BASE T ETHERNET 4 20Mbps TOKEN RING 5 100/1000 100 BASE T ETHERNET/GIGABIT ETHERNET 5E 1Gbps/1000mbps GIGABIT ETHERNET 6 10Gbps GIGABIT ETHERNET/IP TELPHONY 6E 10Gbps GAGBIT ETHERNET/HIG END WORK STATION Exercise 4.1.5 Exercise 4.1.6 Coaxial cable conducts electrical signal using an inner conductor (usually a solid
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Network Topologies • LANs and WANs - Geographical coverage • LANs – A single geographical location‚ such as office building‚ school‚ etc – Typically High speed and cheaper. • WANs – Spans more than one geographical location often connecting separated LANs – Slower – Costly hardware‚ routers‚ dedicated leased lines and complicated implementation procedures. 1 Network Topologies • Topology - Physical and logical network layout – Physical – actual layout of the computer cables and other
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appropriate for the local libraries: Ethernet‚ fast Ethernet‚ or gigabit Ethernet? Fast Ethernet - To allow for an increased speed of transmission‚ the Ethernet protocol has developed a new standard that supports 100 Mbps. This is commonly called Fast Ethernet. Fast Ethernet requires the use of different‚ more expensive network concentrators/hubs and network interface cards. In addition‚ category 5 twisted pair or fiber optic cable is necessary. Fast Ethernet is becoming common in schools that have
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Cisco Systems‚ Inc. is an American multinational corporation headquartered in San Jose‚ California‚ that designs‚ manufactures‚ and sells networking equipment. The stock was added to the Dow Jones Industrial Average on June 8‚ 2009‚ and is also included in the S&P 500 Index‚ the Russell 1000 Index‚ NASDAQ 100 Index and the Russell 1000 Growth Stock Index. The phenomenal growth of the Internet in mid-to-late 1990s quickly changed the telecom landscape. As the Internet Protocol (IP) became widely
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- Suresh Khanal Computer Networking Short Questions and Answer www.psexam.com Computer Networking Short Questions and Answers Suresh Khanal Kalanki‚ Kathmandu shkhanal@gmail.com shkhanal@yahoo.com Published By: http://www.psexam.com contact: info@psexam.com Computer Networking: Short Questions and Answers Published by PS Exam Kalanki‚ Kathmandu Nepal www.psexam.com Copyright ©2009 author. No part of this publication may be reproduced‚ stored in a retrieval system or transmitted
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