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- April 15, 2002 Silent Hill 2 Versi Xbox Untuk PS2 Question 1:Where should the main distribution facility (MDF) be located in a multi-story building using an extended star topology? C. on one of the middle floors Question 2: What happens if you touch two objects with different potential voltages? B. you complete the circuit and get a shock Question 3: If Acme Inc. occupies the first three floors of a building and each floor is 1500 square meters, how many wiring closets should be installed according to EIA/TIA 569? C. six Question 4: What is the purpose of the safety ground in a computer? D. prevents metal parts from becoming energized with a hazardous voltage Question 5: What is the "one-hand rule?" A. Only touch electrical devices with one hand at a time to prevent electricity from flowing through the body. Question 6: What kind of power disturbances can be caused by strikes? C. surges Question 7: What is the first step in locating a wiring closet for a network? D. Identify the topological requirements of devices that will be in the network. Question 8: What kind of floor should the wiring room have? A. tile or other finished surface Question 9: How does AC line noise create problems? B. by adding unwanted voltage to the desired signals Question 10: What best describes the problems caused by electrostatic discharge (ESD)? B. It destroys semiconductors and data. Question 11: Why should fluorescent light fixtures be avoided in wiring closets? B. They generate outside interference. Question 12: Which type of networking media is now installed most often for backbone cabling? C. 62.5/125 micron fiber-optic cable Question 13: In what types of situations will a safety ground connection not be sufficient? B. when the earth grounds between two parts of a network are identical D. when ground wires in separate locations have slightly different potential Question 14: How can the creation of potentially dangerous circuits between buildings be avoided? B. Fiber-optic cable should be used as the backbone of the network. Question 15: What network device is used in an extended star topology when the catchment area of one wiring closet is not enough? A. repeater Question 16: What problem could be caused by a faulty ground wire connection at an outlet that is used by networking equipment? A. Nothing, because IEEE standards separate LAN networking media from power connections. D. There could be potentially fatal voltages between the LAN's UTP cabling and the chassis of a networking device. Question 17: What best describes the difference between alternating and direct current? D. DC flows at a constant value, whereas AC rises and falls. Question 18: How can UTP backbone cabling facilitate entry of lightning into a building? B. The copper provides a pathway for lightning to enter a building. Question 19: When starting to design a network, what should be the first step in the process? C. documenting costs and developing a budget for implementation Question 20: What is a common cause of oscillation often called harmonics? A. excessively long electrical wiring runs D. power company switching operations Question 21: Why are common mode problems a hazard to you or your computer? A. They go directly to the computer chassis. Question 22: What best describes a wiring closet specification? B. All cable leaving the room to intermediate distribution facilities and computer and communications rooms located on other floors of a building should be via 8 cm (or smaller) conduits or sleeved cores. C. Any wall or ceiling openings provided for conduits or sleeved cores must be sealed with smoke and flame retardant materials. |
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