Computer Network and Bandwidth Quiz

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What is the transmission capacity of a network referred to as?

Bandwidth (correct)
DSL
HSPDA
Broadband

Which organization provided the original definition of broadband as an always-on, high-speed connection to the Internet?

CRTC (correct)
ISP
PAN
HSPDA

According to the CRTC, broadband connections can include which of the following technologies?

Personal area networks (PANs)
Cable
Digital subscriber line (DSL)
Wireless HSPDA (correct)

What is the primary characteristic of Personal Area Networks (PANs)?

Short-range networks (D) Signup and view all the answers

What is the main idea behind local area networks (LANs)?

To provide fast and inexpensive communication within a limited region (C) Signup and view all the answers

What type of wire is typically used in most LANs?

Unshielded twisted-pair wire (UTP) (A) Signup and view all the answers

What is the primary function of a network interface card (NIC) in a LAN?

Physically connect devices to the LAN (A) Signup and view all the answers

Why do businesses use wide area networks (WANs) according to the text?

To transmit data beyond the confines of LANs (A) Signup and view all the answers

What is the primary purpose of routers in wide area networks (WANs)?

Communications processor that routes messages between LANs or across a WAN (D) Signup and view all the answers

How are LANs and WANs connected in enterprise networks?

Interconnected to form an enterprise backbone network (C) Signup and view all the answers

What is the primary role of software-defined networks (SDN) in managing data flows?

Centrally managing how network traffic flows across network devices (C) Signup and view all the answers

How do cable modems differ from DSL modems in terms of bandwidth sharing?

Cable modems share bandwidth among subscribers in a locality while DSL modems do not (D) Signup and view all the answers

What is the distinguishing feature of digital signals that allows computers to interpret information?

Representing binary information with discrete pulses (A) Signup and view all the answers

Why do organizations find software-defined networks (SDN) increasingly important?

To manage data flows across their enterprise networks more effectively (D) Signup and view all the answers

What is a disadvantage of twisted-pair wire as discussed in the text?

Subject to interference from other electrical sources (D) Signup and view all the answers

Which cable media is smaller and lighter than traditional cable media?

Fibre Optics (C) Signup and view all the answers

What is the primary advantage of coaxial cables over twisted-pair wires?

Less affected by electrical interference (B) Signup and view all the answers

Which media channel uses physical wires or cables to transmit data according to the text?

Wireline media (D) Signup and view all the answers

What is a characteristic of fibre-optic cables that makes them suitable as a network backbone?

Transmits more data and provides greater security from interference (A) Signup and view all the answers

Why are Ethernet protocols significant for network communications?

Enable network communication at speeds up to 100 gigabits per second (B) Signup and view all the answers