Broadband Digital Installer 2025/2026
Exam Questions and Answers | A+ Score
Assured
The First version of DOCSIS was approved as an international standard by
what organization? - 🧠 ANSWER ✔✔The International Telecommunication
Union (ITU)
What Criteria does the DOCSIS certification process ensure? - 🧠 ANSWER
✔✔Compliance with the DOCSIS standard and interoperability between
suppliers.
Which Layers of the Open Systems Interconnection (OSI) reference model
are specific to cable networks and are present only between DOCSIS
modems and the CMTS? - 🧠 ANSWER ✔✔Layers 1-4 (Physical Layer,
Data Link layer, Network layer, and transport layer) are applied between
the DOCSIS Modem and CMTS.
, What communications access technology does the first version of DOCSIS
(DOCSIS 1.0) use to send data upstream over the networks radio
frequency (RF) return path? - 🧠 ANSWER ✔✔Time Division Multiple
Access (TDMA)
What requirements were needed for PacketCable to deliver a quality and
reliable telephone service over a DOCSIS access network? - 🧠 ANSWER
✔✔Quality of Service (QOS) controls, enhanced security and adaptive
equalization in the upstream path.
What features were introduced with the 3.1 Version of (DOCSIS 3.1) to
increase the downstream and upstream data throughput? - 🧠 ANSWER
✔✔Orthogonal frequency division multiplexing (OFDM) and low-density
parity-check (LDPC).
Which DOCSIS version was the first to provide an option for raising the top
frequency of the upstream spectrum to 85 megahertz (MHz) in order to
create enough bandwidth for upstream carriers from modems running on
previous DOCSIS modems? - 🧠 ANSWER ✔✔DOCSIS 3.0
Why are the data throughput rates for both downstream and upstream in
DOCSIS networks asymmetrical? - 🧠 ANSWER ✔✔Because the narrower
Exam Questions and Answers | A+ Score
Assured
The First version of DOCSIS was approved as an international standard by
what organization? - 🧠 ANSWER ✔✔The International Telecommunication
Union (ITU)
What Criteria does the DOCSIS certification process ensure? - 🧠 ANSWER
✔✔Compliance with the DOCSIS standard and interoperability between
suppliers.
Which Layers of the Open Systems Interconnection (OSI) reference model
are specific to cable networks and are present only between DOCSIS
modems and the CMTS? - 🧠 ANSWER ✔✔Layers 1-4 (Physical Layer,
Data Link layer, Network layer, and transport layer) are applied between
the DOCSIS Modem and CMTS.
, What communications access technology does the first version of DOCSIS
(DOCSIS 1.0) use to send data upstream over the networks radio
frequency (RF) return path? - 🧠 ANSWER ✔✔Time Division Multiple
Access (TDMA)
What requirements were needed for PacketCable to deliver a quality and
reliable telephone service over a DOCSIS access network? - 🧠 ANSWER
✔✔Quality of Service (QOS) controls, enhanced security and adaptive
equalization in the upstream path.
What features were introduced with the 3.1 Version of (DOCSIS 3.1) to
increase the downstream and upstream data throughput? - 🧠 ANSWER
✔✔Orthogonal frequency division multiplexing (OFDM) and low-density
parity-check (LDPC).
Which DOCSIS version was the first to provide an option for raising the top
frequency of the upstream spectrum to 85 megahertz (MHz) in order to
create enough bandwidth for upstream carriers from modems running on
previous DOCSIS modems? - 🧠 ANSWER ✔✔DOCSIS 3.0
Why are the data throughput rates for both downstream and upstream in
DOCSIS networks asymmetrical? - 🧠 ANSWER ✔✔Because the narrower
