MIS 3200 Networking Fundamentals

MIS 3200 Networking Fundamentals Review Question (Exam2)

Student Name: ______

Consider the network design illustrated in Figure 3-18, and answer the following questions.

Cat 5-UTP

Crossover cable

1. Suppose that, due to some renovations done in the building, the distance between the Workstation and the Hub is now more than 100 meters. What kind of problem this could create? a) Interference b) Shadow zones c) Frequency d) None of the above

2. Now, suppose that in order to solve the problem created by the building renovation, a decision is made to replace the Category-5 UTP by a fiber optic cable. Will this solve the problem? Discuss the consequences of that decision in terms of cost. Be very specific in determining the components of the cost. Answer: ______

3. Crosstalk interference refers to a. Unwanted signals coming from the environment (heating or cooling systems, etc.) b. Random electrical energy generated in the wire c. Signals emitted from one wire and picked up by a second wire d. None of the above.

0a433d70a2a47658a854a2d7d2bb83d5.doc Page 1 of 2 4. In data transmission, noise refers to a. Receiving a direct and an indirect signal b. Radiation emitted by one wire and picked up by a second wire c. Random electric energy generated in the transmission media when the signal is being transmitted. d. None of the above

5. Which of the following is true if in a wireless transmission using radio waves, the distance between the sender and the receiver is to triple? a) There will be too much interference b) The receiver will only get about half of the original signal strength c) The receiver will only get about 1/3 of the original signal strength d) None of the above

6. A DSU is a conversion device used with analog sources of data and digital T F transmission lines.

7. Digital signals are represented as continuous waveforms and binary signals are T F represented as discrete (i.e. non-continuous) waveforms.

8. In digital transmission, the state of the signal varies among exactly two states T F usually represented as 0 and 1.

9. A codec is a translating device used with analog source of data and digital T F transmission media.

10. Usually, a translation device is needed even if both the source of data and the T F transmission line are digital.

11. A Codec is used for translation when the source of data is digital and the T F transmission line is analog.

12. Mutilpath interference occurs when the receiving device is behind a large thick T F object

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