This is the part of the network that connects the individual to the telecommunications system. It consists of a series of fiber optic and copper cabling along with a number of passive and active devices that is connected to the local exchange .The access network is a critical part of the network because it is the final piece of it that actually connects the end users. The local exchange is where information
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register and computer. This information can be used to generate monthly reports and tax information. The total cost of purchasing these tools includes hardware‚ software and installation. Total hardware costs‚ including the register‚ computer‚ and cabling‚ will cost $777.91. The cost for all software that is needed will be $247.51. The installation costs will be $150.00. The total costs for the complete system will be $1175.42. Implementation of the system can be done on a Sunday when the salon is
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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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object of a good network is to minimize the frequency and severity of the errors so as to not affect the network and users on the network. By placing cabling away from machines and fluorescent lighting you eliminate certain impulse noise interference. By creating a strong signal you can eliminate white noise that could become a problem. If you use cabling that is shielded there would be less chance for cross talk. Increasing the guard bands on transmissions will also help eliminate the chance for crosstalk
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standards for cabling and connectors? A. Layer 1 9. Which OSI layer defines the standards for data formats and encryption? D. Layer 6(Your Answer) 10. Which of the following terms are not valid terms for the names of the seven OSI layers? C. Transmission(Your Answer) E. Internet(Your Answer) Chapter 3 1. Which of the following is true about the cabling of a typical modern Ethernet LAN? D. Connect each device to a centralized LAN switch using UTP cabling(Your Answer)
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Ben IT/240 Justin Davison Aug 28‚ 2011 11. Your network consists of four servers. Each server has three NICs. Server A is connected to servers B‚ C‚ and D. Server B is attached to C and D. Server C is attached to server D. No hub is used. All cabling is CAT 3 UTP crossover cables. What is your physical topology? a. Star b. Bus c. Ring d. Mesh Answer: This would be an example of a modified “mesh” topology. No hub is used‚ just crossover cables and multiple Nic cards in each server. A
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Ethernet Systems communicating over Ethernet divide a stream of data into shorter pieces called frames. Each frame contains source and destination addresses and error-checking data so that damaged data can be detected and re-transmitted. The Ethernet provides services up to and including the data link layer. Since its commercial release‚ Ethernet has retained a good degree of compatibility. Features such as the 48-bit MAC address and Ethernet frame format have influenced other networking protocols
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NT1210 Quiz 1 1. How many bits are in a byte? A. 8 B. 4 C. 2 D. 1 2. Electronic devices today use what numbering system? A. Decimal B. Octal C. Binary D. Electronic 3. Convert this decimal number to binary: 97 A. 01100001 B. 01100000 C. 10000001 D. 10010001 4. Convert this binary number to decimal: 00010000 A. 32 B. 24 C. 12 D. 16 5. Unlike earlier telecom networks‚ most modern networks are _____ end-to-end. A. cellular B. analog C. data D. digital 6. What is the typical
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How many bits are in a gigabyte? | 1 billion | How many bits are in a megabyte? | 1 million | Convert 00101010 to decimal. | 42 | What is the difference between a sector and a track? | A sector is part of a track | How many bits are in one hexadecimal digit? | 4 | How are voice communications converted to digital signals? | Audio is sampled at a high rate which is converted to binary numbers | What does it mean to compress a video file? | To decrease file size | In this url‚ http://www
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signal travels as it moves from one component to another. This chapter describes the common types of network media‚ including twisted-pair cable‚ coaxial cable‚ fiber-optic cable‚ and wireless. Twisted-Pair Cable Twisted-pair cable is a type of cabling that is used for telephone communications and most modern Ethernet networks. A pair of wires forms a circuit that can transmit data. The pairs are twisted to provide protection against crosstalk‚ the noise generated by adjacent pairs. When electrical
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