COMM & CONNECTIVITY

COMM & CONNECTIVITY

A client provides resources for the servers on a network
True
False
A communications channel that is made up of a single copper core with a ground sheath around it is called a
Twisted pair channel
Microwave
Coaxial cable
Fiber-optic cable
A computer network supports connectivity
True
False
A device that is connected to a network is called a
Client
Node
Server
Host
A device, connected to a network, that provides resources to other networked devices is
called a
Client
Server
Host
Network operating system
A device, connected to a network, that requests resources available from other devices is
called a
Client
Server
Host
Network operating system
A fax machine sends and receives
Pictures of documents
Actual, legally binding documents
Electronic messages
Phone messages
A modem can convert analog signals to digital and vise versa
True
False
A modem that doesn’t need wires to connect to a telephone line is the __________
modem
External
Internal
Wireless
Fax
A modem that is contained within the system unit is called a(n) __________ modem
External
Internal
Wireless
Fax



A modem that uses the telephone lines and connects to the computer through a serial port
is a(n) __________ modem

External
Internal
Wireless
Fax
A network configuration in which each computer or device is attached to a central unit is
called a(n) __________ network
Star
Bus
Ring
Hierarchical
A network configuration in which each device is attached to a central cable is called a __________ network
Star
Bus
Ring
Hierarchical
A new and rapidly evolving technology that uses existing telephone lines yet has a
transfer rate like that of a T1 line is called
ISDN
Microwave
Cable modem
DSL
A twisted pair can handle many times the amount of data that can be sent over a coaxial
cable
True
False
An external modem is connected to the system unit by a cable plugged into the serial
port
True
False
An external modem is plugged directly into the system motherboard
True
False
An internal modem plugs directly into the circuit board inside the system unit
True
False
Any device attached to a network could be considered a node
True
False
Cable modems are as fast as T1 lines
True
False


Cable modems are slower than regular modems but more reliable
True
False
Communication without wires, in straight lines, is accomplished using
Twisted pairs
Fiber-optics
Coaxial cables
Microwaves

Computers send and receive data in the form of __________ signals
Analog
Digital
Modulated
Demodulated
Computers use digital signals to communicate within the system unit
True
False
Connectivity enables microcomputer users to share data
True
False
Connectivity requires the use of the telephone
True
False
Data communications are measured in bits per second
True
False
Data is transmitted using light through a(n) __________ cable
Twisted pair
Fiber-optic
Coaxial
Microwave
If one central, powerful computer coordinates and supplies data and programs to all of
the other computers in the network, it is a(n) __________ network system
LAN
Peer-to-peer
Client/server
Hierarchical
If the devices in the network can serve as both servers and clients, the network is said to
be
Hybrid
Terminal
Peer-to-peer
Hierarchical
If the majority of the processing power is housed in a central computer, and the devices connected to it have little or no processing capability, it is called a(n) __________ network
Hybrid
Terminal
Peer-to-peer
Hierarchical
In a distributed processing network, the computing power is spread across the network, and the different machines share the load
True
False
Modem stands for modulator and demodulator
True
False
Telephone lines uses twisted pair cables.
True
False
On a network, a server can be a node
True
False
One coaxial cable can handle 80 times the amount of data that can be sent over a twisted
pair
True
False
One of the most popular Internet services is
Electronic mail
Public discussion
Copying files remote databases
Running programs on remote computers
Telecommunications lines are simply telephone lines
True
False
The arrangement and coordination of resources in a network is described by its
architecture
True
False
The capacity of a data transmission medium is measured in bits-per-second. The name for
this capacity is _______.
Bandwidth
Bit capacity
Baud rate
Date flow
The channel with the greatest bandwidth is called broadband
True
False
The most accurate representation of communications speed is ___________ .
Baud rate
Bytes per second
Bits per second
Words per minute
The physical arrangement of the computers in a network is called the ____________ .
NOS
Topology
Node layout
Protocol


The rules used to allow successful data transmission are called
Interconnections
Synchronous packages
Protocols
Data transmission synchronization
The telephone is an example of a(n) __________ signal
Analog
Digital
Modulated
Demodulated
The term bandwidth refers to the number of signals that can be sent at the same time
True
False
The term bandwidth refers to the speed of a data channel
True
False
The term data communications system refers to electronic systems that transmit data
over distances
True
False
The topology of a network is the physical arrangement of the computers within it
True
False
Voice band is the slowest data transmission bandwidth
True
False
A way in which network can be configured is called the networks
Host
Server
Topology
Node
For voice communications and data communications required separate telephone lines.
True
False
Select ascending order for speed unit (a ) Mbps ( b) Kbps (c ) bps (d ) Gbps
D-A-B-C
D-A-C-B
C-B-A-D
C-B-D-A
Which of the following is not a node ?
Computer
Printer
Speaker
Scanner
Select invalid topology from given below
Star topology
Bus topology
Hybrid topology
Circle topology

Telephone lines typically designed for
Voice transmission
Data transmission
Video signals
None of these
Telephone lines typically send and receive
Digital signal
Analog signal
Both A_B
None of these
The rules for the exchange of information/data between computer is known as
Communication
Transmission
Protocols
Connection
Transmission capability of a channel is called
Channel width
Band width
Data width
None of these
What does the abbreviation LAN stand for?
Loan access network
Large area network
Local area network
Log arithmetic number
What does the abbreviation MAN stand for?
More access network
Man area network
Metropolitan area network
Magical arithmetic number
What is a workstation ?
Transistors
Integrated circuit
Micro processor
Computer
What is the salient feature of Work station
Use in CAD/CAM
Desktop publishing
Software development
All of the above
Which are the electronic systems that transmit data over communications lines from one
location to another ?
Data communications systems
Delta communications systems
DSL systems
None of these




Which computer system that allow people from Mumbai and Nagpur to have inperson
meetings
E-mail
Videoconferencing systems
Voice-mail messaging
Fax machines
Which is most popular internet connection service?
Digital subscriber line
T1
Cable modem
Dial-up service
Which is not category of bandwidth ?
Data band
Voice band
Medium band
Broad band
Which is not type of modem?
External modem
Internet modem
Internal modem
Wireless modem
Which media carries data through Fiber optic channel ?
Electric signal
Radio waves
Light
None of these
Which modem does not required telephone line ?
External modem
Internet modem
Intenal modem
Wireless modem
Which of the following is a global network of computers ?
Internet
LAN
WAN
TCP/P
Which of the following is a type of computer network ?
TAN
LAN
NAT
None of these
Which of the following is a type of protocol?
TCP/P
ASCII
DBA
RAM




Which of the following is not a type of protocol?
TCP/P
IPX/SPX
IPX
ASCII
Which of the following is not a type of Topology?
Bus
Star
Ring
TCP/P
A twisted pair cable has much higher transmission capacity as compared to a coaxial
cable.
True
False
Bandwidth means transmission capability of a transmission channel in bits per second.
True
False
Bandwidth of a voiceband is typically between 56 kbps to 96 kbps.
True
False
Medium band is the bandwidth used to connect to minicomputer and mainframe.
True
False
Bandwidth of a broadband is typically around 56 kbps.
True
False
A printer connected to the network can not be called a node
True
False
A server is a node that shares resources with other nodes.
True
False
Networking is possible by using any operating system.
True
False
In distributed processing computing power is located and shared by at different locations.
True
False
Host computer is the large centralized computer, usually mini or mainframe computer.
True
False
In a star network a number of computers and devices are individually linked to a central
computer.
True
False
In star networking topology the communications between two computers do not pass
through a central computer.
True
False

In a bus network a number of computers and peripheral devices are individually linked to
a central computer.
True
False
In a bus network a number of computers and peripheral devices are connected through a
common cable.
True
False
Bus network topology enables relatively inexpensive networking.
True
False
A token ring network is most frequently used for connecting microcomputers with each
other.
True
False
A bus network topology can not be used for terminal network system.
True
False
In terminal network system several nodes which do not have virtually any processing power are connected to a very powerful computer within which all the processing takes place.
True
False
In peer to peer network system some of the nodes do not have virtually any processing power but other nodes have processing power.
True
False
In peer to peer network system all the nodes have processing power.
True
False
In peer to peer network system all the nodes act as a clients and servers.
True
False
Microsoft Windows 2003 server can be used as an operating system for peer to peer networking.
True
False

Peer to peer networking is very effective when the number of nodes is about 10 or less.
True
False
A protocol defines the rules for passing information between two or more computers
True
False
Is TCP/IP used for information exchange across the internet?
True
False
Modems copy data from a CD to a hard disk.
True
False
A computer network allows two or more computers to communicate
True
False
A computer network
Describes the information channels within a system unit
Is the term used to describe a communications system connecting two or more computers together?
Is the connection among computer users, often seen at conferences
Describes the relationship between a data element and a database record
Microwave communication is a technology used for __________ communication.
Wireless
Wired
Both
None of the above
Connection devices act as an__________ between the sending and receiving devices and communication channel
Inter mediate
Interface
Interface
Interrupt
Modem is a__________ device.
Connection
Sending
Receiving
All of the above
The actual connecting medium that carries data in a communication system is called as
Connection
Communication channel
Sending receiving device
All of the above
Blue tooth is a__________ communication technology
Wireless
Wired
Cable based
Both 1 2
Coaxial cable is a__________ frequency transmission cable
Low
High
Moderate
Variable
Satellite communication uses__________ as communication medium.
Air
Coaxial cables
Fiber optic cables
Water
Coaxial cable contains
One cable
Twisted pair of cables
Ten cables
Five cables
Telephone line are made up of__________ cables
Copper
Aluminum
Steel
Silver
Coaxial cable has more transmission capacity than –
Telephone lines
Fiber optic cables
Both 1 2
None of the above
Microwave communication uses high frequency__________ waves
Radio
Light
Infrared
Magnetic
Microwave antennas are used to__________ to microwave signals
Relay
Regulates
Restructure
Fiber optic cables are immune to__________ interference
Magnetic
Electrical
Electronic
Microwave
Computers send and receive__________ signals whereas telephones typically send and receive__________signals
Analog, digital
Digital, analog
Analog, electromagnetic
Digital, radio
The communication speed typically measured in –
Bits per second
Kilo bits per second
Million bits per second
All of the above
Internet connection with dial up service is normally__________ in speed
Slow
High
Very high
Both 2 3
Protocols are__________ for exchanging data.
Rules
Device
Channels
Mediums
Band width is a measurement of capacity of communication –
Device
Channel
Protocol
All of the above
The modem is used to convert__________ data to__________ and vice versa.
Binary, text
Digital, analog
Numerical, text
Analog, electromagnetic
Cable modems use__________ cables.
Telephone
Twisted pair
Television
All of the above
Internet connection using special high speed leased lines is very__________ for a normal
user.
Low cost
Expensive
Economical
None of the above
__________ and __________ internet connection are faster than__________internet connection.
DSL, cable, satellite
Cable, DSL, cable
Satellite, DSL, cable
Satellite, cable, DSL
Internet connection uses air as a communication medium..
Fiber optic
Cable modem
Satellite
DSL
PC card modem is _________ size expansion board that is inserted into portable
computers.
A4
Credit card
A3
Post card
Vice band is a also known as –
Low hand
Medium band
Broad band
All of the above
Broad band is used for ___________ capacity transmission.
High
Low
Medium
All of the above
Every computer on internet has a unique ________ address called IP address.
Numeric
Text
Alphabetic
Alphabetic

_________ operating systems controls and coordinates the activates of all computers and other devices on a networks.
New
Network
Real time
All of the above
The information sent or transmitted across the internet is reformatted or broken down into small parts called __________
Packages
Bundles
Packets
Chunks
Any device that is connected to a network which could be a computer, printer or data storage is called as ______
Node
Hub
Joint
Point
Node in a computer network which shares resources with other nodes is called as _______
Client
Server
Main node
Secondary node
Microcomputers with standard modems and dial-up services normally use _____ band for
Internet connection.
Broad
Wide
Medium
Voice
To transmit text documents, a _________ bandwidth would be sufficient.
Low
High
Medium
Broad
A large centralized computer usually a microcomputer or a mainframe connected in a computer network is called as ________ computer.
Host
Head
Guest
All of the above
The four principal network topologies are ______, _______, __________, ________
Star, bus, ring, hierarchical
Ring, bus, swuare, oval
Ring, regular, square, bus
Star, ring, oval, bus



In a _______ network, each device in the network handles its own communication control. There is no host computer.
Bus
Ring
Star
Hierarchical
In a ______ network, each device is connected to two other device.
Ring
Star
Bus
Square
Networks with computers and peripheral devices in close physical proximity are called ________ area networks.
Wide
Native
Local
Large
_______ are networks are countrywide and worldwide networks.
LAN
WAN
MAN
TAN
________ Network systems use one computer to co-ordinate and supply services to other nodes on the network.
Client/server
Terminals
Peer to peer
All of the above
On peer to peer network systems, nodes have _________ authority and can act as both servers and clients
Unequal
Equal
Stable
All of the above
In a ______ network top level host computer connects to next level computers, which are connected to third level computers, often used in centralized organizations.
Hierarchical
Ring
Bus
All of above
In a _______ network system, processing power is centralized in one large computer, usually a mainframe.
Terminal
Node
Peer-t-peer
All of the above



The star and hierarchical networks are typical configurations with ________ operating system.
UNIX
DOS
POSIX
OS/2
The _________ network is not as efficient as the _____ network for sharing common resources.
Star, bus
Star, ring
Bus, star
Bus, ring
A LAN may be linked to other LANs or to larger networks using ________
Network pass
Network gateway
Network doorway
Network token
One particular advantage of ___________ form of network is that it can be used to provide a time-sharing system.
Ring
Star
Bus
None of above
Ring is a network_________
Topology
Strategy
Arrangement
None of the above