WorksheetsData Communication and Networking - Test Review
Total questions: 51
Worksheet time: 51mins
Which of the following is a transmission media on which data, instructions, or information travel?
communication route
communication channel
communication flow
communication path
Digital communications describes a process in which two or more computers or devices transfer all of the following EXCEPT ____.
data
information
instructions
networks
Which of the following is a LAN that uses no physical wires?
BLAN
WLAN
PLAN
TLAN
What is the term for a network that covers a large geographic area, such as a city, country, or the world, using a variety of wired and wireless transmission media?
local area network (LAN)
metropolitan area network (MAN)
wide area network (WAN)
variable area network (VAN)
Which of the following is the least likely technology PANs would use?
Bluetooth
peer-to-peer
Wi-Fi
special USB cables
The design of computers, devices, and media in a network is categorized as either client/server or peer-to-peer. What is term used to refer to this characterization?
network topology
network architecture
network standard
network protocol
What kind of computer controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data, and information?
host
indexed
client
master
What kind of network do one or more computers act as a server and the other computers on the network request services from the server?
dedicated
client/server
integrated
indexed
On a network, some servers perform a specific task and can be placed with other servers to perform multiple tasks. What are these kind of servers call?
baseband
unique
multitasking
dedicated
Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?
peer-to-peer network
hard network
MAN
interpolated network
A network in which each computer has equal responsibilities and capabilities. What is this kind of network called?
file
P2P
linked
Which of the following is the greatest problem with regard to a bus network?
Devices attached or detached at any point on the bus disrupt the rest of the network
Failure of one device usually affects the rest of the network
The bus itself might become inoperable
Bus networks are expensive and difficult to install
In the accompanying figure, what type of LAN is shown?
P2P
SLAN
WLAN
FTP
Which of the following is true of the installation of a network like the one shown in the accompanying figure?
It is an internal network that uses Internet technologies
It must span a smaller distance than a WLAN network, but it is easier
It must have built-in wireless capability or the appropriate wireless network card, USB adapter, or other wireless device
It can span a larger distance than a P2P network, and it is easier
Which of the following defines guidelines that specify the way computers access the medium to which they are attached, the type(s) of medium used, the speeds used on different types of networks, and the type(s) of physical cable and/or the wireless technology used?
network metric
network index
network matrix
network standard
Which of the following is a network standard that specifies no central computer or device on the network should control when data can be transmitted?
Ethernet
Telnet
IEEE
Gopher
Who invented the Ethernet?
Bill Gates
Robert Metcalfe
Larry Ellison
Steve Jobs
Which of the following is the data transfer rate equivalent to one million bits per second?
Mbps
Tbps
Pbps
Gbps
Which of the following terms identifies any network based on the 802.11 family of standards?
mesh
IEEE
Wi-Fi
FireWire
How many feet can the range of Bluetooth devices be extended with additional equipment?
40
45
125
325
Which of the following can detect problems -- such as why traffic is flowing slowly -- on networks that uses TCP/IP protocol?
Ethernet analyzers
bit monitoring scripts
torrent flow apps
packet sniffer software
Which of the following did Sven Mattisson and Jaap Haartsen invent?
Ethernet
IrDA
WiMAX
Bluetooth
Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology
NFC
IrDA
VoIP
WiMAX
Which of the following is true of DSL?
It is a popular digital line alternative for the small business or home user
Users share DSL nodes with up to hundreds of other users
It uses a line that is shared with other users in the neighborhood
It has widespread availability
Which of the following has the fastest transfer rate?
Cable
DSL
ISDN
FTTP
Which of the following has the fastest transfer rate?
T3
ATM
Fractional T1
FTTP
Which of the following kinds of devices is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device?
linkage
communications
dial-up
baseband
Which of the following kinds of modems is a modem that sends and receives digital data over and information to and from a digital line?
wireless
broadband
access
baseband
Which of the following is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network?
wireless link
router
wireless access point
integral point
Which of the following is a communication device that connects multiple computers together and transmit data to its correct destination on a network?
grid
multiplexer
baseband modem
router
For a smaller business and home networks, which of the following allows multiple computers to share a single broadband internet connection such as through a cable modem or DSL modem?
multiplexer
router
grid
baseband modem
How many wired and/or wireless computers and mobile devices might a router be able to connect?
more than 200
more than 450
more than 500
There is no limit
Which of the following enables a computer or device that does not have built-in networking capability to access a network?
hub
packet
NIC
router
Which of the following can be avoided if a computer or mobile device has a motherboard that integrates networking capability?
hub
packet
node
NIC
Many home users are connecting multiple computers and devices together into a system. What is the name for this system?
home grid
file share
residential multiplex
home network
For best performance of a communications channel. Which of the following should be true?
bandwidth and latency should be low
bandwidth should be low and latency high
bandwidth should be high and latency low
bandwidth and latency should be high
The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?
broadband
latency
baseband
bandwidth
Which of the following terms is the time it takes a signal travel from one location to another on a network?
latency
symmetry
frequency
delay register
Which of the following terms is an electrical disturbance that can degrade communications?
latency
noise
coax
hub
Which of the following kinds of 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?
coaxial
integrated
twisted-pair
fiber-optic
Which of the following is a wireless transmission medium that distributes radio signals through the air over long distance?
mobile transmission
optical resolution
bandless transmission
broadcast radio
Which of the following is true of broadcast radio with regard to physical transmission media?
It is slower and more susceptible to noise
It is slower and less susceptible to noise
It is faster and more susceptible to noise
It is faster and less susceptible to noise
What is the maximum transfer transmission rate for Bluetooth?
24 Mbps
54 Mbps
300 Mbps
1 Gps
Which of the following is the maximum transfer transmission rate for communications satellites?
2.56 Mbps
2.54 Gbps
25 Gbps
2.56 Gbps
Which of the following are radio waves that provide a high-speed signal transmission?
generations
microwaves
fixed access events
indices
Which of the following is an earth-based reflective dish that contains the antenna, transceivers, and other equipment necessary for microwave communications?
domestic carrier
interstellar transport
microwave station
planetary dish
Microwave transmission involves sending signals from one microwave station to another. What is this often called?
line-of-sight transmission
flexed-point wireless
out-of-sight transmission
fixed wireless
Which of the following is not an application of communications satellite technology?
GPS
paging
weather forecasting
fixed wireless
What term describes the process in which two or more computers or devices transfer data, instructions, and information?
digital cybering
digital communcation
digital channeling
digital connecting
What is a sending device?
a device that initiates an instruction to transmit data, instructions, or information
a device that connects to a communications channel
a device on which data, instructions, and information travel
a device that accepts the transmission of data, instructions, or information
What is a receiving device?
a device that initiates an instruction to transmit data, instructions or information
a device that connects to a communication channel
a device on which data, instructions, and information travel
a device that accepts the transmission of data, instructions or information
