MTI-MTII QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS
A wavelength-isolating power meter is most commonly used in:
A. Point-to-point active Ethernet applications.
B. Point-to-multipoint FTTx installations.
C. Long distance applications.
D. Full-duplex operation mode with SONET systems. Correct
Answer B. Point-to-multipoint FTTx installations.
According to the Federal Communications Commission (FCC)
leakage regulations, what distance must an antenna be from the
network for leakage level measurements?
A. The antenna must be 1 meter (3 feet) from the network
elements and 1 meter (3 feet) above the ground.
B. The antenna must be 30 meters (100 feet) from the network
elements and 10 meters (30 feet) above the ground.
C. The antenna must be 100 meters (30 feet) from the network
elements and 3 meters (10 feet) above the ground.13-2
D. The antenna must be 3 meters (10 feet) from the network
elements and 3 meters (10 feet) above the ground. Correct
Answer D. The antenna must be 3 meters (10 feet) from the
network elements and 3 meters (10 feet) above the ground.
Across 6 MHz, what is the maximum in-channel frequency
response (ICFR) defined in the Data Over Cable Service
Interface Specification (DOCSIS)?
A. 1.0 dB plus 0.2 dB per number (N) of amplifiers in cascade;
N/5 + 1.
B. 1.0 dB plus 0.1 dB per number (N) of amplifiers in cascade;
N/10 + 1.
,C. 4.0 dB peak-to-valley (P/V).
D. 3.0 dB peak-to-valley (P/V). Correct Answer D. 3.0 dB
peak-to-valley (P/V).
Assuming that the hybrid fiber/coax (HFC) network is set up for
unity gain and operating properly, the output level of the
upstream channel source is directly related to what?
A. The drop system's return path attenuation.
B. The downstream signal levels.
C. The long-loop automatic gain control (AGC) configurations.
Correct Answer A. The drop system's return path attenuation.
Battery care is a priority in any standby power supply
maintenance program. What are some red flags to look for when
servicing the batteries? Choose all that apply.
A. Signs of the battery case cracking, leaking, or swelling.
B. The batteries are more than twos years old.
C. Loose connections.
D. Corroded battery posts.
E. The voltage across each battery is within 0.3 VDC. Correct
Answer A. Signs of the battery case cracking, leaking, or
swelling.
C. Loose connections.
D. Corroded battery posts.
Besides RS-232 ports, what type of interface is common on an
optical power meter?
A. A fiber guide is the quickest connection method.
B. A USB interface can provide easy download of information
to a PC.
C. Ports are only required on a light source.
,D. ANSI/TIA-526-7-2008 is the most common outside plant
interface. Correct Answer B. A USB interface can provide
easy download of information to a PC.
Chipsets with ingress cancellation algorithms are most effective
for removing impairments in what portion of the RF return
frequency spectrum?
A. Within the upstream channel bandwidth.
B. Between 10 MHz and 20 MHz.
C. Across the entire upstream frequency spectrum.
D. 2 MHz above and below the upstream channel. Correct
Answer A. Within the upstream channel bandwidth.
Even though the downstream sweep test pulses are intended to
fit in the narrow frequency band between channels, what
parameter can cause interference if set too high?
A. Sweep test pulse refresh rate.
B. Sweep test pulse phase.
C. Sweep test pulse amplitude.
D. Sweep test pulse intensity. Correct Answer C. Sweep test
pulse amplitude.
House amplifiers with a passive return path are used for what
type of situation?
A. For customer premises that receive only downstream signals;
no signals are sent upstream.
B. For customer premises that have multiple outlets that must
support return path signals.
C. For situations when long service drops are used and the
forward path needs to be amplified but return path amplification
is unnecessary.
, D. For customer premises that have alarm systems installed.
Correct Answer C. For situations when long service drops are
used and the forward path needs to be amplified but return path
amplification is unnecessary.
How can the amount of thermal noise added to a network be
minimized?
A. Install high-pass filters (HPF) on drops that take only
downstream services.
B. Tighten all connections and install covers on all amplifier
modules.
C. By ensuring that the RF input is at or above the specified
minimum input level to all amplifiers.
D. Ensure that bonds to ground at the customer premises and in
the network are adequate. Correct Answer C. By ensuring that
the RF input is at or above the specified minimum input level to
all amplifiers.
How does surge protection at the input and output of a
ferroresonant power supply defend against voltage surges?
A. By passing voltage surges (within the surge device rating) to
ground without damage.
B. By temporarily opening when the voltage exceeds the surge
device rating.
C. By generating a cancelation voltage that effectively
neutralizes a voltage surge.
D. By absorbing voltage surges and slowly discharging them
into the circuit. Correct Answer A. By passing voltage surges
(within the surge device rating) to ground without damage.
COMPLETE SOLUTIONS
A wavelength-isolating power meter is most commonly used in:
A. Point-to-point active Ethernet applications.
B. Point-to-multipoint FTTx installations.
C. Long distance applications.
D. Full-duplex operation mode with SONET systems. Correct
Answer B. Point-to-multipoint FTTx installations.
According to the Federal Communications Commission (FCC)
leakage regulations, what distance must an antenna be from the
network for leakage level measurements?
A. The antenna must be 1 meter (3 feet) from the network
elements and 1 meter (3 feet) above the ground.
B. The antenna must be 30 meters (100 feet) from the network
elements and 10 meters (30 feet) above the ground.
C. The antenna must be 100 meters (30 feet) from the network
elements and 3 meters (10 feet) above the ground.13-2
D. The antenna must be 3 meters (10 feet) from the network
elements and 3 meters (10 feet) above the ground. Correct
Answer D. The antenna must be 3 meters (10 feet) from the
network elements and 3 meters (10 feet) above the ground.
Across 6 MHz, what is the maximum in-channel frequency
response (ICFR) defined in the Data Over Cable Service
Interface Specification (DOCSIS)?
A. 1.0 dB plus 0.2 dB per number (N) of amplifiers in cascade;
N/5 + 1.
B. 1.0 dB plus 0.1 dB per number (N) of amplifiers in cascade;
N/10 + 1.
,C. 4.0 dB peak-to-valley (P/V).
D. 3.0 dB peak-to-valley (P/V). Correct Answer D. 3.0 dB
peak-to-valley (P/V).
Assuming that the hybrid fiber/coax (HFC) network is set up for
unity gain and operating properly, the output level of the
upstream channel source is directly related to what?
A. The drop system's return path attenuation.
B. The downstream signal levels.
C. The long-loop automatic gain control (AGC) configurations.
Correct Answer A. The drop system's return path attenuation.
Battery care is a priority in any standby power supply
maintenance program. What are some red flags to look for when
servicing the batteries? Choose all that apply.
A. Signs of the battery case cracking, leaking, or swelling.
B. The batteries are more than twos years old.
C. Loose connections.
D. Corroded battery posts.
E. The voltage across each battery is within 0.3 VDC. Correct
Answer A. Signs of the battery case cracking, leaking, or
swelling.
C. Loose connections.
D. Corroded battery posts.
Besides RS-232 ports, what type of interface is common on an
optical power meter?
A. A fiber guide is the quickest connection method.
B. A USB interface can provide easy download of information
to a PC.
C. Ports are only required on a light source.
,D. ANSI/TIA-526-7-2008 is the most common outside plant
interface. Correct Answer B. A USB interface can provide
easy download of information to a PC.
Chipsets with ingress cancellation algorithms are most effective
for removing impairments in what portion of the RF return
frequency spectrum?
A. Within the upstream channel bandwidth.
B. Between 10 MHz and 20 MHz.
C. Across the entire upstream frequency spectrum.
D. 2 MHz above and below the upstream channel. Correct
Answer A. Within the upstream channel bandwidth.
Even though the downstream sweep test pulses are intended to
fit in the narrow frequency band between channels, what
parameter can cause interference if set too high?
A. Sweep test pulse refresh rate.
B. Sweep test pulse phase.
C. Sweep test pulse amplitude.
D. Sweep test pulse intensity. Correct Answer C. Sweep test
pulse amplitude.
House amplifiers with a passive return path are used for what
type of situation?
A. For customer premises that receive only downstream signals;
no signals are sent upstream.
B. For customer premises that have multiple outlets that must
support return path signals.
C. For situations when long service drops are used and the
forward path needs to be amplified but return path amplification
is unnecessary.
, D. For customer premises that have alarm systems installed.
Correct Answer C. For situations when long service drops are
used and the forward path needs to be amplified but return path
amplification is unnecessary.
How can the amount of thermal noise added to a network be
minimized?
A. Install high-pass filters (HPF) on drops that take only
downstream services.
B. Tighten all connections and install covers on all amplifier
modules.
C. By ensuring that the RF input is at or above the specified
minimum input level to all amplifiers.
D. Ensure that bonds to ground at the customer premises and in
the network are adequate. Correct Answer C. By ensuring that
the RF input is at or above the specified minimum input level to
all amplifiers.
How does surge protection at the input and output of a
ferroresonant power supply defend against voltage surges?
A. By passing voltage surges (within the surge device rating) to
ground without damage.
B. By temporarily opening when the voltage exceeds the surge
device rating.
C. By generating a cancelation voltage that effectively
neutralizes a voltage surge.
D. By absorbing voltage surges and slowly discharging them
into the circuit. Correct Answer A. By passing voltage surges
(within the surge device rating) to ground without damage.
