Computer Networking What are the data transmission channels available for carrying data from one location to another? All of these None of these Narrowband Voiceband Broadband All of these None of these Narrowband Voiceband Broadband ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following types of connections can use full duplex?1. Hub to hub2. Switch to switch3. Host to host4. Switch to hub5. Switch to host 3 and 4 2, 3 and 5 3 and 5 1, 2 and 4 3 and 4 2, 3 and 5 3 and 5 1, 2 and 4 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Many data communication networks have been established which provide a wealth of on-demand information services to people at home. What is the name of the system which provides an interactive, graphics-rich service that permits user to select what they want? Videotex system None of these Fax system Teletex system Microwave system Videotex system None of these Fax system Teletex system Microwave system ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following refers to the terms "residual error rate"? signal to noise ratio divided by the ratio of energy per bit to noise per hertz The probability that one or more errors will be undetected when an error detection scheme is used None of these the probability that one or more errors will be detected when an error detection mechanism is used the number of bit errors per twenty four hours of continuous operation on an asynchronous line signal to noise ratio divided by the ratio of energy per bit to noise per hertz The probability that one or more errors will be undetected when an error detection scheme is used None of these the probability that one or more errors will be detected when an error detection mechanism is used the number of bit errors per twenty four hours of continuous operation on an asynchronous line ANSWER DOWNLOAD EXAMIANS APP
Computer Networking In OSI model, which of the following layer provides error-free delivery of data? None of these Network Data link Session transport None of these Network Data link Session transport ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Carrier is a collection of interconnected functional units that provides a data communications service among stations attached to the network a continuous frequency capable of being modulated or impressed with a second signal One or more conductors that serve as a common connection for a related group of devices the condition when two or more sections attempt to use the same channel at the same time None of these a collection of interconnected functional units that provides a data communications service among stations attached to the network a continuous frequency capable of being modulated or impressed with a second signal One or more conductors that serve as a common connection for a related group of devices the condition when two or more sections attempt to use the same channel at the same time None of these ANSWER DOWNLOAD EXAMIANS APP
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