Progression: Construction Coordinator I - II
1. Involves the use of a node transponder that continuously monitors a num-ber of
critical functions.: Monitoring the status of optical nodes
2. Use DWDM
Dense wavelength division multiplexing
digital return transmitters in hub-to-headend architectures.: Digital return path
transmissions
3. DOCSIS: Broadband cable operators provide customers with HSD High-speeddata
connections to the Internet via their HFC networks using what standard?
4. A universally accepted standard for digital television, first released in 1992.-
: What is MPEG?
5. They contain four main sections: the optical receiver, the RF amplifier module,
the reverse optical transmitter, and the DC power supply.: Which ofthe following is
true about optical nodes?
6. PacketCable: What product based on the DOCSIS defines the protocols for IP
telephony over HFC?
7. The number of servers needed for video content storage is smaller than inthe
distributed server architecture.: In a centralized server VOD architecture,
8. Local ad insertion is performed usually by a video server.: Which of the
following statements about local ad insertion is true?
9. The CMTS
Cable modem termination system
can provide a data transfer rate up to 38 Mbps, using 256-QAM in a single 6MHz
channel.: In regard to providing HSD service,
10. SONET is the North American standard used for telephony applications.-
: Which of the following is true about the SONET standard?
11. The CCA center conductor has almost equal attenuation at high frequen- cies.:
Compared to a solid copper center conductor, which property about a copper clad aluminum
(CCA) center conductor is correct?
12. Foamed polyethylene produced by gas injection.: In hardline coaxial cable, what is
the most common dielectric material?
13. To allow movement of the cable when lashed to the strand: In aerial instal- lations,
why do cable manufacturers recommend that expansion loops be formed in hardline coaxial
cable?
14. At 75 ©characteristic impedance, the coaxial cable has minimal attenuation, with
adequate breakdown voltage and power carrying capacity.: Why was theimpedance
for the broadband cable industry standardized at 75 ohms (©)?
15. The rate that radio frequency (RF) signals travel through the coaxial cable versus
the speed that RF signals travel in a vacuum or free space.: What is the coaxial cable
velocity of propagation (VoP)?
1/8
, Progression: Construction Coordinator I - II
16. 2 x 2.5 dB, or 5.0 dB.: If the attenuation through a 100 ft. span of 0.750 MC2coaxial
cable is 2.5dB at 75 MHz, what will be the approximate attenuation at 300MHz?
17. 22.05 dB.: What is the attenuation through 1,600-feet of 0.750 cable at 600 MHz and
120° F, when at 68° F and 600 MHz the cable attenuation rate is 1.31 decibels (dB)/100
feet? (Be sure to factor in the higher temperature.)
18. Some signal energy is transferred to the load, with the remainder reflectedalong
the coaxial cable back to the source.: What happens when there is an impedance
mismatch between the coaxial cable and the load?
19. The difference in decibels (dB) between the signal power applied to a
terminated cable and the reflected signal power.: What is the return loss in coaxial
cable?
20. Through cracks in the shield where the cable is bent, or tiny holes in theshield.:
How can signal leaks (egress) from hardline coaxial cable occur?
21. Over the years, intermittent operation, low-frequency roll-off, and commonpath
distortion (CPD) issues have been attributed to feed-through connec- tors.: Why are
pin-type hardline connectors the preferred type of connector for attaching hardline coaxial
cable to equipment housings in today's networks?
22. Pin-to-F female adapters.: What type of adapter is used for permanent or tem- porary
jumper installation in place of damaged hardline coaxial cable or equipmenthookup?
23. Leather work gloves.: What should be worn when cutting and preparing hard- line
coaxial cable for connector attachment?
24. To carefully cut the dielectric away before coring the cable.: How should a knife be
used when preparing hardline coaxial cable for connector attachment?
25. The end of the cable is crushed and deformed, which makes coring the dielectric
and sliding connector parts onto the cable difficult.: What is a con-sequence of cutting
hardline coaxial cable with conventional side cutters?
26. The appropriate length of aluminum shield and dielectric must be removed, to
expose the cable center conductor.: When using a single-purpose coring tool, what is
done before the coring tool can be used to cut and remove the dielectric?
27. Clean out any dielectric and aluminum trimmings from the cable and the tool and
continue coring to the correct depth.: If the hardline coaxial cable centerconductor is too
short after coring the dielectric with a combination coring tool, whatshould be done?
28. QR cable is first cored and the aluminum shield is stripped before the
polyethylene jacket is removed to the proper length, the reverse of other cabletypes.:
What is different about preparing QR hardline coaxial cable for connector installation
compared to all other types?
2/8
1. Involves the use of a node transponder that continuously monitors a num-ber of
critical functions.: Monitoring the status of optical nodes
2. Use DWDM
Dense wavelength division multiplexing
digital return transmitters in hub-to-headend architectures.: Digital return path
transmissions
3. DOCSIS: Broadband cable operators provide customers with HSD High-speeddata
connections to the Internet via their HFC networks using what standard?
4. A universally accepted standard for digital television, first released in 1992.-
: What is MPEG?
5. They contain four main sections: the optical receiver, the RF amplifier module,
the reverse optical transmitter, and the DC power supply.: Which ofthe following is
true about optical nodes?
6. PacketCable: What product based on the DOCSIS defines the protocols for IP
telephony over HFC?
7. The number of servers needed for video content storage is smaller than inthe
distributed server architecture.: In a centralized server VOD architecture,
8. Local ad insertion is performed usually by a video server.: Which of the
following statements about local ad insertion is true?
9. The CMTS
Cable modem termination system
can provide a data transfer rate up to 38 Mbps, using 256-QAM in a single 6MHz
channel.: In regard to providing HSD service,
10. SONET is the North American standard used for telephony applications.-
: Which of the following is true about the SONET standard?
11. The CCA center conductor has almost equal attenuation at high frequen- cies.:
Compared to a solid copper center conductor, which property about a copper clad aluminum
(CCA) center conductor is correct?
12. Foamed polyethylene produced by gas injection.: In hardline coaxial cable, what is
the most common dielectric material?
13. To allow movement of the cable when lashed to the strand: In aerial instal- lations,
why do cable manufacturers recommend that expansion loops be formed in hardline coaxial
cable?
14. At 75 ©characteristic impedance, the coaxial cable has minimal attenuation, with
adequate breakdown voltage and power carrying capacity.: Why was theimpedance
for the broadband cable industry standardized at 75 ohms (©)?
15. The rate that radio frequency (RF) signals travel through the coaxial cable versus
the speed that RF signals travel in a vacuum or free space.: What is the coaxial cable
velocity of propagation (VoP)?
1/8
, Progression: Construction Coordinator I - II
16. 2 x 2.5 dB, or 5.0 dB.: If the attenuation through a 100 ft. span of 0.750 MC2coaxial
cable is 2.5dB at 75 MHz, what will be the approximate attenuation at 300MHz?
17. 22.05 dB.: What is the attenuation through 1,600-feet of 0.750 cable at 600 MHz and
120° F, when at 68° F and 600 MHz the cable attenuation rate is 1.31 decibels (dB)/100
feet? (Be sure to factor in the higher temperature.)
18. Some signal energy is transferred to the load, with the remainder reflectedalong
the coaxial cable back to the source.: What happens when there is an impedance
mismatch between the coaxial cable and the load?
19. The difference in decibels (dB) between the signal power applied to a
terminated cable and the reflected signal power.: What is the return loss in coaxial
cable?
20. Through cracks in the shield where the cable is bent, or tiny holes in theshield.:
How can signal leaks (egress) from hardline coaxial cable occur?
21. Over the years, intermittent operation, low-frequency roll-off, and commonpath
distortion (CPD) issues have been attributed to feed-through connec- tors.: Why are
pin-type hardline connectors the preferred type of connector for attaching hardline coaxial
cable to equipment housings in today's networks?
22. Pin-to-F female adapters.: What type of adapter is used for permanent or tem- porary
jumper installation in place of damaged hardline coaxial cable or equipmenthookup?
23. Leather work gloves.: What should be worn when cutting and preparing hard- line
coaxial cable for connector attachment?
24. To carefully cut the dielectric away before coring the cable.: How should a knife be
used when preparing hardline coaxial cable for connector attachment?
25. The end of the cable is crushed and deformed, which makes coring the dielectric
and sliding connector parts onto the cable difficult.: What is a con-sequence of cutting
hardline coaxial cable with conventional side cutters?
26. The appropriate length of aluminum shield and dielectric must be removed, to
expose the cable center conductor.: When using a single-purpose coring tool, what is
done before the coring tool can be used to cut and remove the dielectric?
27. Clean out any dielectric and aluminum trimmings from the cable and the tool and
continue coring to the correct depth.: If the hardline coaxial cable centerconductor is too
short after coring the dielectric with a combination coring tool, whatshould be done?
28. QR cable is first cored and the aluminum shield is stripped before the
polyethylene jacket is removed to the proper length, the reverse of other cabletypes.:
What is different about preparing QR hardline coaxial cable for connector installation
compared to all other types?
2/8
