Computer Networks and Communication Exam Questions and Answers Latest Update Graded A+
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Course
Computer Networking
Institution
Computer Networking
Computer Networks and Communication Exam Questions and Answers Latest Update Graded A+
A communications ____ is a transmission media on which data, instructions, or information travel. - Answers channel
A type of communications device that connects a communications channel to a sending or receivi...
Computer Networks and Communication Exam Questions and Answers Latest Update Graded A+
A communications ____ is a transmission media on which data, instructions, or information travel. -
Answers channel
A type of communications device that connects a communications channel to a sending or receiving
device is a ____. - Answers modem
A ____ is a wireless network that provides Internet connections to mobile computers and other devices.
- Answers hot spot
A ____ is a collection of computers and devices connected together via communications devices and
transmission media. - Answers network
A ____ license is a legal agreement that allows multiple users to access software on a server
simultaneously. - Answers network
A ____ is a network that covers a large geographic area, such as a city, country, or the world, using a
communications channel that combines many types of media. - Answers wide area network (WAN)
The greatest risk to a bus network is that ____. - Answers the bus itself might become inoperable
A network ____ refers to the layout of the computers and devices in a communications network. -
Answers topology
A ____ network is a network topology in which a cable forms a closed loop, with all computers and
devices arranged along it. - Answers ring
Sometimes a company uses a(n) ____, which allows customers or suppliers to access part of its intranet.
- Answers extranet
Some large areas, such as college or business campuses, are set up as a Wi-Fi ____ network, in which
each mesh node routes its data to the next available node until the data reaches its destination - usually
an Internet connection. - Answers mesh
Types of wired home networks include all of the following ____. - Answers ethernet, powerline cable,
phoneline
For best performance of a communications channel, ____. - Answers bandwidth should be high and
latency low
The amount of data, instructions, and information that can travel over a communications channel
sometimes is called the ____. - Answers bandwidth
____ is the time it takes a signal to travel from one location to another on a network. - Answers Latency
, Physical transmission media used in communications include all of the following ____. - Answers
twisted-pair cable, coaxial cable, fiber-optic cable
Fiber-optic cables have all of the following advantages over cables that use wire ____. - Answers faster
data transmission and smaller size
less susceptible to noise from other devices
better security for signals during transmission
____ cable consists of a single copper wire surrounded by at least three layers: an insulating material, a
woven or braided metal, and a plastic outer coating. - Answers Coaxial
The core of a(n) ____ cable consists of dozens or hundreds of thin strands of glass or plastic that use
light to transmit signals. - Answers fiber-optic
SMS capability allows users to send and receive graphics, pictures, video clips, and sound files as well as
short text messages. - Answers false
On a ring network, if the hub fails the entire network is inoperable until the hub is repaired. - Answers
false
With TCP/IP, each packet contains data as well as the recipient (destination), origin (sender), and the
sequence information used to reassemble the data at the destination. - Answers true
Infrared (IR) is a wireless transmission medium that sends signals using infrared light waves. - Answers
true
For radio transmissions, a transmitter is needed to send the broadcast radio signal and a receiver to
accept it. - Answers true
A(n) ____________________ device is a device that initiates an instruction to transmit data,
instructions, or information. - Answers sending
A(n) ____________________ device is a device that accepts the transmission of data, instructions, or
information. - Answers receiving
A(n) ____________________ is a legal agreement that permits users to install software on multiple
computers, usually at a volume discount. - Answers site license
A(n) ____________________ is a LAN that uses no physical wires. - Answers wireless LAN
wireless LAN (WLAN)
WLAN (wireless LAN)
WLAN
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