Q. Repeater operates in which layer of the OSI model?

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Q. Which of the following is not the possible ways of data exchange?

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Q. This kind of data transmission allows data to be transmitted in both directions on a signal carrier at the same time.

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Q. What is the difference between a switch and a hub?

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Q. MAC address is also known as __________.

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Q. Repeater operates in which layer of the OSI model

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Q. Repeater function in the ...................... layer.

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Q. A repeater takes a weakened or corrupted signal and ............... it.

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Q. What device separates a single network into two segments but lets the two segments appear as one to higher protocols?

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Q. Which of the following is used for modulation and demodulation?

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Q. Which of the following types of channels moves data relatively slowly?

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Q. Which of the following device is used to connect two systems, especially if the systems use different protocols?

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Q. The synchronous modems are more costly than the asynchronous modems because

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Q. The cheapest modems can transmit

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Q. Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?

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Q. Demodulation is a process of

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Q. Demodulation is the process of

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Q. A devices that links two homogeneous packet-broadcast local networks, is

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Q. The physical layer, in reference to the OSI model, defines

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Q. Which of the following device copies electrical signals from one Ethernet to another?

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