Rcdd Exam Prep

Front 1

What is the CENELEC standard for Information Technology - Cable Installation?

Back 1

CENELEC EN 50174

Front 2

What is the CENELEC standard for Information Technology - Generic Cabling Systems

Back 2

CENELEC EN 50173

Front 3

What is the CENELEC standard for Application of Equipotential Bonding and Earthing in Buildings with Information Technology Equipment

Back 3

CENELEC EN 50130

Front 4

What is the CENELEC standard for Information Technology - Cabling Installation - Testing of Installed Cabling

Back 4

CENELEC EN 50346

Front 5

What is the optimm temperature that a battery should be maintained

Back 5

77 degrees F

Front 6

The recommended Bend Radius for a cable during installation is typically greater than the recommended bend radius after the cable is installed. True or False?

Back 6

True

Front 7

The mazimum pulling force guideling for a 2-or 4- strand fiber cable is what?

Back 7

50 lbs

Front 8

The minimum bend radius for a 2- or 4-fiber optical cable is what under no-load conditions

Back 8

1 inch

Front 9

The minimum bend radius for a 2- or 4-fiber optical cable is what under pulling tension

Back 9

2 inch

Front 10

What are the Standard Test Methods for Fire Test of Through-Penetration Fire Stops?

Back 10

UL 1479 and ASTM E814

Front 11

What is the permitted substitute for a fiber optic cable rated OFNP

Back 11

None

Front 12

What does OFNP stand for

Back 12

Optical Fiber Non-Conductive Plenum

Front 13

The magnitude of disturbances in Telecommunications Facilities depend upon what three things

Back 13

1) Influence characteristics of the disturbing system
2) Inductive Coupling characteristics of the disturbing systems
3) Interference suseptability of the telecommunications facility

Front 14

The Interference characteristics of the disturbing system depends on what four things

Back 14

1) The balance of the system
2) The fundemental and harmonic content
3) Current Magnitude (for magnetic coupling)
4) Voltage Magnitude (fpr electrostatic coupling)

Front 15

The coupling characteristics (coupling impedence) is a function of what 5 things?

Back 15

1) Frequency
2) Seperation distance
3) Lenght of exposure
4) Earth Resistance
5) Shielding effect between the Telecommunication Facilities

Front 16

The three types of protection for electrical power stations are:

Back 16

1) Isolating transformers
2) Neutralizing Transformers
3) Mutual Drainage Reactors

Front 17

What are the three types of tunnel construction methods

Back 17

1) Open-cut (ground exavation
2) Boring (or tunneling
3) Prefabrication (used for underwater)

Front 18

The Majority of all FA systems are of the PLFA type.
True or False?

Back 18

True

Front 19

PLFA stands for ???

Back 19

Power Limited Fire Alarm

Front 20

Most PLFA circuits operate at less than or equal to how many volts

Back 20

24 volts

Front 21

The portion of the Ethernet physical layer responsible for the interfacing to the transmission medium is called the ____________sublayer.

Back 21

Physical Media Dependent (PMD)

Front 22

What are the seven layers of the OSI Model

Back 22

apstndp
1) Physical
2) Data Link
3) Network
4) Transport
5) Session
6)Presentation
7) Application

Front 23

What is an MCS?

Back 23

Mobile Switching Center

Front 24

What is a ECP?

Back 24

Executive Cellular Processor sometimes referred to as a homel location register.

Front 25

How many BTU's = 1 ton of airconditioning required

Back 25

12,000

Front 26

1 Watt = how many BTU's

Back 26

3.413 BTU

Front 27

What is the lozz of a 4-way splitter at 450MHz

Back 27

6.8dB

Front 28

What is the loss of a 2-way splitter at 450MHz

Back 28

3.5dB

Front 29

What is the typical impedence for private line circuits?

Back 29

600 ohms

Front 30

The maximum allowable attenuation for horizontal 62.5/125 or 50/125 micrometer multimode link is what?

Back 30

2.0dB

Front 31

802.11a operates at what maximum data rate

Back 31

54 Mb/s

Front 32

802.11b operates at what frequency

Back 32

2.4 GHz

Front 33

Power converter usually produce only common-mode (CM) noise. True or False

Back 33

False

Front 34

Power converters usually produce both common-mode (CM) and differential mode (DM) noise

Back 34

True

Front 35

The temperature in the ER should be maintained at what temperature?

Back 35

64 and 75 degrees F

Front 36

The relative humidity in the ER should be maintained at what level?

Back 36

30 to 50%

Front 37

What is the typical impedence preferred for the private line circuits?

Back 37

600 ohms

Front 38

Ethernet in the 1st Mile is also known as?

Back 38

802.3ah

Front 39

ITU G.655 non-zero shifted optical fiber represents the majority of the installed base of single mode optical fiber. True or False

Back 39

False

Front 40

ITU-T G.652 non-zero shifted optical fiber represents the majority of the installed base of single mode optical fiber. True or False

Back 40

True

Front 41

Which of the following coordinates the access, paging, and handoff function within a cellular system?
1) ESN
2)ESP (Executive Call Processing)
3)MCS (Mobile Switching Center
4) DCS

Back 41

3) MCS

Front 42

Which is more efficient
1) Syncronous Transmission
2) Asyncronous Transmission

Back 42

1) Syncrynous Transmission - because no start stop bits are required (Digital baseband speeds as low as 2.4Kb/s)

Front 43

Access floor in general office areas are designated at:
1) 2 inches
2) 5 inches
3) 4 inches
4) 6 inches
5) 8 inches

Back 43

5) 8 inches

Front 44

Power converter produce only differential-mode (DM) noise:
True or False?

Back 44

False

Front 45

Power converters produce both common mode (CM) and differential-mode noise:
True or False?

Back 45

True

Front 46

Power converters produce only common-mode (CM) noise:
True or False?

Back 46

False

Front 47

ACR stands for:

Back 47

Attenuation to Crosstalk Ration

Front 48

ACR is the calculated difference between attenuation and crosstalk measurement for twisted pair cabling:
True or False?

Back 48

True

Front 49

Which of the following are not inductive coupling characteristics?
1) Current Magnetude (magnetude coupling)
2) None of these
3) Earth Reistivity
4) Shield effect between the
telecommunication facility.
5) Voltage Coupling (Electostatic Coupling)

Back 49

1) Magnetic Coupling
5) Electrostatic Coupling

Front 50

In residential cabling systems the AP must be notified if the the total cable lenght from the DP to the farthest outlet exceeds:
1) 150 Meters
2) 200 Meteres
3) 100 Meters
4) 90 Meters

Back 50

1) 150 Meters

Front 51

Which of the following Data Center tiers will allow for any planned site infrastructure activity without disruptin the computer hardware in any way:
1) Tier 1
2) Tier 2
3) Tier 3
4) Tier 4

Back 51

3) Tier 3
4) Tier 4

Front 52

Which of the following makes it possible to segment an organizations network into multiple broadcast domains:
1) Router
2) Hub
3) Switch
4) All

Back 52

1) Router

Front 53

To reduce EMI in Tunnes, which of the following is the recommended overall telephone circuit balance for metropitan area circuits:
1) 30 dB or >
2) 40 dB or >
3) 60 dB or >
4) 50 dB or >

Back 53

3) 60db or >

Front 54

Which of the following fiber types is desirable because of their invrease physical flexibility:
1) Loose buffered
2) Tight buffered
3) 62.5/125
4) 50/125

Back 54

2) Tight buffered

Front 55

What is the most common distance between loading points for D Loading
1) 450 feet
2) 4500 feet
3) 6000 feet
4) 600 feet

Back 55

2) 4500 feet

Front 56

LVD means ?

Back 56

Low Voltage Disconnect

Front 57

FA Central Services has six elements to meet the certification level required by:
1) NFPA 72
2) JIS X5150
3) UL 1034
4) CENELEC EN 50174

Back 57

1) NFPA 72

Front 58

Which of the following cause a difference between real power (in watts) and the apparent power (in volt amperes) required by the load in an AC circuit:
1) Inductance
2) Capacitance
3) Resistance
4) All of the above

Back 58

1) Inductance
2) Capacitance

Front 59

NEC Artical covering CATV and Radio Distribution Systems
1) Article 510
2) TIA/EIA 569
3) Article 820
4) Article 770

Back 59

3) Article 820

Front 60

Standard "Commercial Building Telecommunication Cabling Standard General Requirement"

Back 60

ANSI/EIA-568-B.1

Front 61

Administration Standard for Commercial Telecommunications Infrastructure

Back 61

ANSI/EIA-606-1

Front 62

Residential Telecommunication Cabling Standard

Back 62

ANSI/EIA-570-A

Front 63

Commercial Building Standards for Telecommunications Pathways and Spaces

Back 63

ANSI/EIA-569-B

Front 64

Commercial Building Telecommunications Standard, Part 2 Balanced Twisted Pair Cabling Components

Back 64

ANSI/EIA-568-B.2

Front 65

Optical Fiber Cabling Compents Standard

Back 65

ANSI/EIA-568.B.3

Front 66

Commercial Building Cabling Standard Par 1 General Requirements Addendum 1 - minimum 4-Pair UTP

Back 66

ANSI/EIA-568.B.1-1

Front 67

A symmetrical noise voltage that appears equally in each action signa carrying conductor is the definition of what?

Back 67

Differential-mode voltage

Front 68

Fire Test of Through Penetration Firestops

Back 68

UL 1479

Front 69

Standard Test Methods for Fire test of Thru-Penetration Fire Stops

Back 69

ASTM E814

Front 70

Which Standard applies to equipment racks used in TE in the US?

Back 70

ANSI/EIA-310-D

Front 71

The combined cable lenghts for patch cords and equipment connects in the work area (WA) and the telecommunications room (TR) should not exceed what length?

Back 71

10 meters (33 feet)

Front 72

What cable length is allowed between the HC(FD) and the telecommunication outlet (TO)

Back 72

90 meters (295 feet)

Front 73

What is the typical impedence preferred for central office switching system line circuits

Back 73

900 ohms

Front 74

Data Center Infrastructure Standard

Back 74

TIA-942

Front 75

What is the AC frequency of the sine waves cycle s in one second in North America

Back 75

60 Hz

Front 76

Primary AC frequency in other countries is what?

Back 76

50 Hz

Front 77

What are the characteristics of inductive coupling

Back 77

1) Current Magnitude (magnetic coupling)
2) Voltage Magnitude (Electrostatic coupling)

Front 78

What are the video transmission protocols.

Back 78

1) PAL (Phase Alternation Line)
2) NTSC (National Television System Communication)
3) Ethernet
4) RS-170 (Monochrome broadcas standard)

Front 79

The "Standard test method of building construction materials" is?

Back 79

ASTM E119

Front 80

HC (FD) jumpers and patch cords should not exceed a length of ?

Back 80

5 meters (16 feet) per link