1. Which of the following terms best describe the first point of interconnection

Question

1.    Which of the following terms best describe the first point of interconnection between an organization's LAN or WAN and a service provider's facility?

Select one:

a. entrance facility

b. MDF

c. IDF

d. work area

2.How large is the FCS field of an Ethernet II frame?

Select one:

a. 4-bytes

b. 8-bytes

c. 2-bytes

d. 6-bytes

3.Which term represents an analog wave's strength?

Select one:

a. Phase

b. Wavelength

c. Frequency

d. Amplitude

4.Which type of modulation occurs when the amplitude of the carrier signal is modified by the application of the data signal?

Select one:

a. Statistical modulation

b. Frequency modulation

c. Amplitude modulation

d. Data modulation

5.In ____ multiplexing, the transmitter assigns slots to nodes according to priority and need.

Select one:

a. statistical

b. frequency division

c. wavelength division

d. dense wavelength division

6.Which cabling consists of one or more insulated wire pairs encased in a plastic sheath?

Select one:

a. STP (Shielded twisted pair)

b. UTP (Unshielded twisted pair)

c. Coaxial

d. Fiber-optic

7.Which of the following connectors uses a polished curved surface but has end faces that are placed at an angle to each other?

Select one:

a. PC

b. UPC

c. APC

d. ST

8. The area above the ceiling tile or below the subflooring is known as the _____.

Select one:

a. plenum

b. surge

c. UPS

d. Simplex

9. A(n) ____________________ is a momentary increase in voltage due to lightning strikes, solar flares, or electrical problems.

Select one:

a. surge

b. simplex

c. resistance

d. transfer

10. A ____ is a battery-operated power source directly attached to one or more devices and to a power supply (such as a wall outlet) that prevents undesired features of the wall outlet's A/C power from harming the device or interrupting its services.

Select one:

a. UPS

b. generator

c. transformer

d. SONET

11. Which of the following transmission methods allows signals to travel in both directions over a medium simultaneously?

Select one:

a. simplex

b. half-duplex

c. redundancy

d. full-duplex

12. Together, the FCS and the header make up the _____ "frame" for the data in an Ethernet II frame.

Select one:

a. simplex

b. 18-byte

c. 18-gigabite

d. full-duplex

13. Which of the following terms best describe the process of discovering and identifying the devices on a network?

Select one:

a. network diagram

b. wiring scheme

c. network mapping

d. network graphing

14. True or False: A high twist ratio can result in lower attenuation.

Select one:

True

False

15. True or False: Fiber-optic cable is the most expensive transmission medium.

Select one:

True

False

16. True or False: A hardware component that can be changed without disrupting operations is known as hot-swappable

Select one:

True

False

17. True or False: EMI (electromagnetic interference) is a latency issue.

Select one:

True

False

18. True or False: The difference between continuity testers and performance testers lies in their sophistication and price.

Select one:

True

False

19. True or False: An advantage to using NAS is that it can be easily expanded without interrupting service.

Select one:

True

False

20. True or False: A NIC has no room for a transceiver.

Select one:

True

False

Explanation / Answer

1.

first point of interconnection between an organization's LAN or WAN and a service provider's facility MDF.

Option b

2.

4 bytes large is the FCS field of an Ethernet II frame.

Option a

3.

Amplitude term represents an analog wave's strength.

Option d

4.

Amplitude modulation type of modulation occurs when the amplitude of the carrier signal is modified by the application of the data signal.

Option c

5.

In statistical multiplexing, the transmitter assigns slots to nodes according to priority and need.

Option a

6.

UTP cabling consists of one or more insulated wire pairs encased in a plastic sheath.

Option b

7.

PC connectors uses a polished curved surface but has end faces that are placed at an angle to each other.

Option a

8.

The area above the ceiling tile or below the subflooring is known as the plenum.

Option a

9.

Surge is a momentary increase in voltage due to lightning strikes, solar flares, or electrical problems.

Option a

10.

UPS is a battery-operated power source directly attached to one or more devices and to a power supply (such as a wall outlet) that prevents undesired features of the wall outlet's A/C power from harming the device or interrupting its services.

Option a

11.

full duplex transmission methods allows signals to travel in both directions over a medium simultaneously.

Option d

12.

Together, the FCS and the header make up the 18-byte "frame" for the data in an Ethernet II frame.

Option b

13.

network mapping is the following terms best describe the process of discovering and identifying the devices on a network.

Option c

14.

A high twist ratio can result in lower attenuation.

False

15.

Fiber-optic cable is the most expensive transmission medium.

True

16.

A hardware component that can be changed without disrupting operations is known as hot-swappable.

True

17.

EMI (electromagnetic interference) is a latency issue.

False

19.

The difference between continuity testers and performance testers lies in their sophistication and price.

True

19.

An advantage to using NAS is that it can be easily expanded without interrupting service.

True

20.

A NIC has no room for a transceiver.

False

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