Chapter 1 Answer the following review questions. 1. Which of the following protocols are examples of TCP/IP transport layer protocols? (More than one answer could be correct.) a. Ethernet b. HTTP c. IP d. UDP e. SMTP f. TCP The answers to this question are TCP and UDP. 2. Which of the following protocols are examples of TCP/IP network access layer protocols? a. Ethernet b. HTTP c. IP d. UDP e. SMTP f. TCP g. PPP The answers to this question are Ethernet and PPP. 3. The process
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Qualification: | BTEC National Level 3 | Certificate | Subject: | Information Technology | Unit number + Title | 2. Computer Systems | Assignment number + Title: | 1. Decoding the Jargon | Assessment Criteria: | P1 P2 M1 | Purpose / Aims (learning outcomes) | LO1 Understand the components of computer systemsP1 Explain the function of computer hardware componentsP2 Explain the purpose of operating systemsM1 Compare the features and functions of different operating
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Optical Fiber Bandwidth 7.Fiber Optic Cable Construction 8.Other Types of Fibers 9.Optical Connectors 10.Optical Receivers 11.Designing a System 1.Introduction: our current "age of technology" is the result of many brilliant inventions and discoveries‚ but it is our ability to transmit information‚ and the media we use to do it‚ that is perhaps most responsible for its evolution . Progressing from the copper wire of a century ago to today’s fiber optic cable‚ our increasing ability to transmit
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continuous length of cable (trunk) and a terminating resistor (terminator) at each end. Data communication message travels along the bus in both directions until it is picked up by a workstation or server NIC. If the message is missed or not recognized‚ it reaches the end of the cabling and dissipates at the terminator. Bus Network Topology requires a multipoint connection. All nodes on the bus topology have equal access to the trunk. This is accomplished using short drop cables or direct T-connectors
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1. IP hosts in two different company TCP/IP networks send IP packets to each other through the Internet. Which of the following is true about the Internet connections that must exist so that the packets can flow between the two companies? a. The two companies must connect directly to each other. b. The two companies must each have at least one Internet access link. c. The two companies must connect to the same ISP. d. The two companies must each connect to a Tier 1 ISP. 2. Which of
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transmission method of which is supported by telecommunications cabling. Unshielded Twisted-Pair- A cable with multiple pairs of twisted insulated copper conductors bound in a single sheath. Shielded Twisted-Pair- A cable surrounded by a twisted braid‚ foil or both and bound in a single plastic sheath containing balanced twisted-pair conductors that are individually shielded. Fiber-optic Cable- is a cable made up of optical fibers that can transmit large amounts of information at the speed of light
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radiation modulated to impress digital data or an analog signal on the light beam. • A photosensitive detector to convert the optical signal back into an electrical signal at the receiver. • Optical connectors at the light source-to-cable interface and at the cable-to-photo detector interface. 2. List Five advantages of an optical communications link • Extremely wide system bandwidth when compared with other sources. • Lower costs due to the fact that optical fiber costs continue to decline
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telecommunications rooms and equipment rooms. Patch cords: Any flexible piece of cable that connects one network device to the main cable run or to a patch panel. Connectors: A device attached to the end of a cable‚ receiver‚ or light source that joins to another cable or device. Conduit: A rigid or flexible metallic or nonmetallic raceway of circular cross section in which cables are housed for protection and to prevent burning cable from spreading flames or smoke in the event of a fire. Racks: A frame-like
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CS T53 COMPUTER NETWORKS UNIT I Introduction to Computer Networks: Need for Networking - Service Description – Connectionless and Connection-Oriented Services – Circuit and Packet Switching – Access Networks and Physical Media – Wireless Links and Characteristics – Queuing Delay and Packet Loss – Internet Protocol stack – OSI Reference Model - Service Models – History of Computer Networking and the Internet. UNIT II Application Layer: Principles of Network Applications – The Web and HTTP
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INTRODUCTION Computer networking is the engineering discipline concerned with the communication between computer systems or devices. A computer network is any set of computers or devices connected to each other with the ability to exchange data. It is sometimes considered a sub-discipline of telecommunications‚ computer science‚ information technology and computer engineering since it relies heavily upon the theoretical and practical application of these scientific and engineering disciplines
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