Waveguide Coaxial cable Fiber optic cable All of the above What is the lowest value of Reflection Coefficient? 1 0 -1 Infinity What is the highest value of Reflection Coefficient? 1 0 -1 infinity What is the lowest value of SWR? 1 0 -1 Infinity What is the
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TASK1 |Media used |Twisted pair cable | | |Coaxial Cable | | |Fiber Optic Cable | |The Connectors used |Registered
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Explain the key components required for client workstations to connect to a network and access network resources. Scenario I work for the IT support department of SMARTNETS Inc. an organisation that specialises in Network solutions for medium to large companies. The managers have now asked me to plan the network options for a charity called UCANHELP with an office in Northolt and will like to share resources between 6 computers‚ not in the same room but require internet connection‚ video conference
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Ethernet has largely replaced competing wired LAN technologies such as a token. The Ethernet standards comprise several wiring and signalling variants of the OSI physical layer in use with Ethernet. The original Ethernet used coaxial cable as a shared medium. Later the coaxial cables were replaced with twisted pair and fibre optic links in conjunction with hubs or switches. Data rates were periodically increased from the original 10 megabits per second to 100 gigabits per second. In simple terms‚ Ethernet
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access service in which the data flows over the local loop cable from the home to the telco central office‚ where a DSLAM uses FDM technology to split out the data and send it to a router‚ and split out the voice frequencies and send them to a traditional voice switch. cable Internet- A term referring to Internet access services provided by a cable company‚ using many components‚ including a cable modem‚ coaxial cable‚ and a CMTS at the cable company head end. default route- In a router‚ a concept in
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telecommunications transmission media and types of networks? The principal physical transmission media are twisted copper telephone wire‚coaxial copper cable‚ fiber-optic cable‚ and wireless transmission. Twisted wire enables companies to use existing wiring for telephone systems for digital communication‚ although it is relatively slow. Fiber-optic and coaxial cable are used for high-volume transmission but are expensive to install. Microwave and communications satellites are used for wireless communication
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Section 1 Introduction 1.1 COMMUNICATIONS Computer communications is the process of sharing data‚ programs‚ and information between two or more computers. We have discussed numerous applications that depend on communication systems‚ including: • E-mail – Provides a fast‚ efficient alternative to traditional mail by sending and receiving electronic documents. • Instant messaging – Supports direct‚ “live” electronic communication between two or more friends or buddies. • Internet
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communication channels Physical Connections Ethernet cable – consists of twisted pair cable; slowest; being phased out by more advanced and reliable media Coaxial cable – single solid copper core; 80 times transmission of twisted pair; television and computer networks Fiber optic – 26‚000 times capacity of twisted pair cable; more secure and reliable; best over limited distances; lighter‚ more reliable‚ and less expensive than coaxial cable Wireless Connections Wireless connections do not use a
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1. A 1.4M Hz carrier is modulated by a music signal that has a frequency components from 20 Hz to 10k Hz. Determine the range of frequencies generated for the upper and lower sidebands. Solution: Upper Side Band = 1‚ 400‚ 000 Hz + 20 Hz = 1‚400‚ 020 Hz Up to = 1‚ 400‚ 000 Hz + 10‚ 000 Hz = 1‚ 410‚ 000 Hz Lower Side Band = 1‚ 400‚ 000 Hz – 10‚ 000 Hz = 1‚ 390‚ 000 Hz Up to = 1‚ 400‚ 000 Hz – 20 Hz = 1‚ 399‚ 980 Hz 2. Determine
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Sophisticated Hardware and Software technology is required. What is communication channel? Name the basic type of communication channels available. Communication channels mean the connecting cables that link various workstations. There are 3 basic types of cables: 1. Twisted Pair cables 2. Coaxial cables 3. Fiber-optic cables What is MAC address? A Media Access Control address (MAC address) is a unique identifier assigned to most network adapters or network interface cards (NICs) by the manufacturer for
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