IT Installing A DOCSIS Cable Modem
Exam Question and answers correctly
solved
What can be checked on the digital set-top box (STB) to verify the reliability of
the customer's drop system?
A. Intermittent operation, which is a symptom of noise or interference in the
upstream.
B. The diagnostic page for downstream performance data such as bit error
rate (BER) and modulation error ratio (MER).
C. Buzzing audio and horizontal lines, which become quite obvious on digital
channels.
D. The video and audio carrier levels to ensure that their respective levels are
15 decibel millivolt (dBmV), ± 2 decibels (dB). - correct answers B
Installing a DOCSIS modem and router in a smart panel or utility room is
simplified by having what items in the room?
A. A working computer, a platform for the modem and router, and adequate
lighting.
B. Customer installed coaxial cable, a platform for the modem and router, and
adequate lighting.
C. Access to the coaxial cable so that it can be routed to the DOCSIS modem,
an electrical outlet to power the DOCSIS modem and router, and an
unshielded twisted-pair (UTP) network cable that is labeled and has
connectors installed using standard wiring configurations.
D. A working computer, a platform for the modem and router, and twisted-pair
network cable that is tagged and has connectors installed using standard
wiring configurations. - correct answers C
Exam Question and answers correctly
solved
What can be checked on the digital set-top box (STB) to verify the reliability of
the customer's drop system?
A. Intermittent operation, which is a symptom of noise or interference in the
upstream.
B. The diagnostic page for downstream performance data such as bit error
rate (BER) and modulation error ratio (MER).
C. Buzzing audio and horizontal lines, which become quite obvious on digital
channels.
D. The video and audio carrier levels to ensure that their respective levels are
15 decibel millivolt (dBmV), ± 2 decibels (dB). - correct answers B
Installing a DOCSIS modem and router in a smart panel or utility room is
simplified by having what items in the room?
A. A working computer, a platform for the modem and router, and adequate
lighting.
B. Customer installed coaxial cable, a platform for the modem and router, and
adequate lighting.
C. Access to the coaxial cable so that it can be routed to the DOCSIS modem,
an electrical outlet to power the DOCSIS modem and router, and an
unshielded twisted-pair (UTP) network cable that is labeled and has
connectors installed using standard wiring configurations.
D. A working computer, a platform for the modem and router, and twisted-pair
network cable that is tagged and has connectors installed using standard
wiring configurations. - correct answers C
