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Question 1:
What causes Electrostatic Discharge (ESD)?
a Long power lines
b Faulty electrical equipment
c An accumulation of static electricity
d An increase in atmospheric humidity Question 2:
Which of the following environmental specifications are recommended for a wiring closet ?
a Carpeted floor; tiled walls and an inward opening door
b Wooden floor; brick walls and fluorescent lighting
c Tiled floor; internal power outlets and a dropped ceiling
d Raised floor; wood covered walls and an internal light switch Question 3:
Why can problems between the hot, or live, wire and the safety ground, or earth, wire pose a hazard to the operation of your computer and network?
a They can present a shock hazard to the computer user
b They can do more damage to data signals than other types of problems
c They can produce power disturbances
d They can cause the unwanted operation of an uninterruptible power supply Question 4:
In a controlled electrical circuit, which path do electrons normally follow?
a From the positively charged source to ground
b From the negatively charged source to a positively charged source
c From the more positively charged source to the less positively charged source
d From the negatively charged source to ground Question 5:
What is the maximum length specified for 62.5/125µm multimode optical fiber run between the MDF and IDF?
90 m
800 m
2000 m
3000 m
Go To Page 12345
Copyright © 2001
stion 6:
What features should be considered when assessing a potential wiring closet?
It should be secure and situated on the first (ground) floor
It should be secure and close to the POP
It should be within 150 m of the MDF and close to an entrance
It should be an internal room and close to the electrical supply distribution Question 7:
A potential wiring closet has been identified in a building with a floor area of 930 sq. m. The distance from this closet to the furthest workstation is 127 m. How many ADDITIONAL wiring closets would need to be installed?
0
1
2
8
Question 8:
What is an alternative name for backbone cabling?
Horizontal cabling
Vertical cabling
Main cabling
Trunk cabling
Question 9:
What is the maximum length specified for 62.5/125µm multimode optical fiber run between the MDF and IDF?
90 m
800 m
2000 m
3000 m
Question 10:
An electrician has investigated your recent power problems and has suggested that they are caused by oscillation. What is the BEST solution to your problem?
Move the network server to another room
Replace UTP with fiber optic cable
Rewire the electrical system
Fit commercial surge suppressors
Question 11:
Which statement BEST describes the current flow in an electrical circuit with a DC source?
It is constant over time
It varies over time
It increases with time
It decreases with time Question 12:
Why are exposed metal components normally connected to the ground, or earth, pin of a power outlet?
The connection is needed to increase the resistance of the circuit to ground
If an electrical fault occurs in the equipment, the connection will reduce the chance of shock
Connecting the metal to ground makes it act like an insulator
The ground connection can act as an alternative path for controlled current flow if the neutral wire is disconnected Question 13:
Why is copper considered a good conductor of electricity?
It offers a path of least resistance to current flow
It is easily formed into wires
It is cheaper than other metals
It reduces power line noise Question 14:
What features should be considered when assessing a potential wiring closet?
It should be secure and situated on the first (ground) floor
It should be secure and close to the POP
It should be within 150 m of the MDF and close to an entrance
It should be an internal room and close to the electrical supply distribution Question 15:
What are the three components that make up an uninterruptible power supply?
A battery, inverter and battery charger
A MOV, capacitor and diode
A generator, changeover circuit and server software
A circuit breaker, fuse and battery
Go To Page 12345
Copyright © 2001
Question 16:
What is one of the most significant causes of oscillatory noise problems on a power circuit?
Long wiring runs
School photocopiers
Locating power cables in elevator shafts
Air conditioners cycling on and off Question 17:
What is the purpose of providing a ground, or earth, connection on a wall power outlet?
To reduce the resistance in the electrical circuit
To link the neutral wire to ground
To allow fault currents to flow to ground
To complete the circuit for normal current to flow Question 18:
Which of the following problems is caused by too high a humidity level in a wiring closet?
Signal degradation
Copper wire corrosion
Insulation failure
Power surges Question 19:
What is an alternative name for backbone cabling?
Horizontal cabling
Vertical cabling
Main cabling
Trunk cabling Question 20:
Why is fiber optic cable commonly used as a network backbone between campus buildings?
It provides a less resistive path for electrical current to flow from one building to another
It enhances the signals at the physical layer
It reduces the hazardous effects of electrical potential difference and lightning strikes
It is cheaper and easier to install than copper wire
Go To Page 12345
Copyright © 2001
Question 21:
An electrician has investigated your recent power problems and has suggested that they are caused by oscillation. What is the BEST solution to your problem?
Move the network server to another room
Replace UTP with fiber optic cable
Rewire the electrical system
Fit commercial surge suppressors Question 22:
What is a possible problem associated with multiple building grounds?
They are often at the same potential with respect to each other
They do not allow electrical current to flow between the buildings
Separate protective devices are needed at each building
They may present a shock hazard due to different potentials Question 23:
What is another term that can be used to describe an Intermediate Distribution Frame (IDF)?
work area (WA)
telecommunications outlet (TO)
main cross-connect (MCC)
horizontal cross-connect (HCC) Question 24:
A potential wiring closet has been identified in a building with a floor area of 930 sq. m. The distance from this closet to the furthest workstation is 127 m. How many ADDITIONAL wiring closets would need to be installed?
0
1
2
8 Question 25:
What is the ideal room temperature and relative humidity at which a wiring closet should be maintained?
21 degrees Celsius / 45 % relative humidity
21 degrees Fahrenheit / 45 % relative humidity
45 degrees Celsius / 21 % relative humidity
45 degrees Fahrenheit / 21 % relative humidity
What causes Electrostatic Discharge (ESD)?
a Long power lines
b Faulty electrical equipment
c An accumulation of static electricity
d An increase in atmospheric humidity Question 2:
Which of the following environmental specifications are recommended for a wiring closet ?
a Carpeted floor; tiled walls and an inward opening door
b Wooden floor; brick walls and fluorescent lighting
c Tiled floor; internal power outlets and a dropped ceiling
d Raised floor; wood covered walls and an internal light switch Question 3:
Why can problems between the hot, or live, wire and the safety ground, or earth, wire pose a hazard to the operation of your computer and network?
a They can present a shock hazard to the computer user
b They can do more damage to data signals than other types of problems
c They can produce power disturbances
d They can cause the unwanted operation of an uninterruptible power supply Question 4:
In a controlled electrical circuit, which path do electrons normally follow?
a From the positively charged source to ground
b From the negatively charged source to a positively charged source
c From the more positively charged source to the less positively charged source
d From the negatively charged source to ground Question 5:
What is the maximum length specified for 62.5/125µm multimode optical fiber run between the MDF and IDF?
90 m
800 m
2000 m
3000 m
Go To Page 12345
Copyright © 2001
stion 6:
What features should be considered when assessing a potential wiring closet?
It should be secure and situated on the first (ground) floor
It should be secure and close to the POP
It should be within 150 m of the MDF and close to an entrance
It should be an internal room and close to the electrical supply distribution Question 7:
A potential wiring closet has been identified in a building with a floor area of 930 sq. m. The distance from this closet to the furthest workstation is 127 m. How many ADDITIONAL wiring closets would need to be installed?
0
1
2
8
Question 8:
What is an alternative name for backbone cabling?
Horizontal cabling
Vertical cabling
Main cabling
Trunk cabling
Question 9:
What is the maximum length specified for 62.5/125µm multimode optical fiber run between the MDF and IDF?
90 m
800 m
2000 m
3000 m
Question 10:
An electrician has investigated your recent power problems and has suggested that they are caused by oscillation. What is the BEST solution to your problem?
Move the network server to another room
Replace UTP with fiber optic cable
Rewire the electrical system
Fit commercial surge suppressors
Question 11:
Which statement BEST describes the current flow in an electrical circuit with a DC source?
It is constant over time
It varies over time
It increases with time
It decreases with time Question 12:
Why are exposed metal components normally connected to the ground, or earth, pin of a power outlet?
The connection is needed to increase the resistance of the circuit to ground
If an electrical fault occurs in the equipment, the connection will reduce the chance of shock
Connecting the metal to ground makes it act like an insulator
The ground connection can act as an alternative path for controlled current flow if the neutral wire is disconnected Question 13:
Why is copper considered a good conductor of electricity?
It offers a path of least resistance to current flow
It is easily formed into wires
It is cheaper than other metals
It reduces power line noise Question 14:
What features should be considered when assessing a potential wiring closet?
It should be secure and situated on the first (ground) floor
It should be secure and close to the POP
It should be within 150 m of the MDF and close to an entrance
It should be an internal room and close to the electrical supply distribution Question 15:
What are the three components that make up an uninterruptible power supply?
A battery, inverter and battery charger
A MOV, capacitor and diode
A generator, changeover circuit and server software
A circuit breaker, fuse and battery
Go To Page 12345
Copyright © 2001
Question 16:
What is one of the most significant causes of oscillatory noise problems on a power circuit?
Long wiring runs
School photocopiers
Locating power cables in elevator shafts
Air conditioners cycling on and off Question 17:
What is the purpose of providing a ground, or earth, connection on a wall power outlet?
To reduce the resistance in the electrical circuit
To link the neutral wire to ground
To allow fault currents to flow to ground
To complete the circuit for normal current to flow Question 18:
Which of the following problems is caused by too high a humidity level in a wiring closet?
Signal degradation
Copper wire corrosion
Insulation failure
Power surges Question 19:
What is an alternative name for backbone cabling?
Horizontal cabling
Vertical cabling
Main cabling
Trunk cabling Question 20:
Why is fiber optic cable commonly used as a network backbone between campus buildings?
It provides a less resistive path for electrical current to flow from one building to another
It enhances the signals at the physical layer
It reduces the hazardous effects of electrical potential difference and lightning strikes
It is cheaper and easier to install than copper wire
Go To Page 12345
Copyright © 2001
Question 21:
An electrician has investigated your recent power problems and has suggested that they are caused by oscillation. What is the BEST solution to your problem?
Move the network server to another room
Replace UTP with fiber optic cable
Rewire the electrical system
Fit commercial surge suppressors Question 22:
What is a possible problem associated with multiple building grounds?
They are often at the same potential with respect to each other
They do not allow electrical current to flow between the buildings
Separate protective devices are needed at each building
They may present a shock hazard due to different potentials Question 23:
What is another term that can be used to describe an Intermediate Distribution Frame (IDF)?
work area (WA)
telecommunications outlet (TO)
main cross-connect (MCC)
horizontal cross-connect (HCC) Question 24:
A potential wiring closet has been identified in a building with a floor area of 930 sq. m. The distance from this closet to the furthest workstation is 127 m. How many ADDITIONAL wiring closets would need to be installed?
0
1
2
8 Question 25:
What is the ideal room temperature and relative humidity at which a wiring closet should be maintained?
21 degrees Celsius / 45 % relative humidity
21 degrees Fahrenheit / 45 % relative humidity
45 degrees Celsius / 21 % relative humidity
45 degrees Fahrenheit / 21 % relative humidity
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