WorksheetsNETWORKS
Total questions: 25
Worksheet time: 13mins
1. What is data communication?
Transfer of data from one point to the next.
Transfer of electronic data from one point to the next over a communication medium.
sending information
none of the above
2. Which network connects computers within a large geographical area?
Wide Area Network
Local Area Network
Metropolitan Area Network
None of the above
3. Full Duplex data flow means:
data travels in both directions, but only one direction at a time.
data travels in only one direction.
data travels in both directions at the same time.
data does not travel.
4. Popular forms of information include text, pictures, audio, video etc.
Message
Sender
Receiver
Transmission Media
Protocol
5. Name the image shown.
network
bus topology
ring topology
star topology
6.Collection of two or more computers joined together through communication media, to share information is?
Computer network
Wired network
half duplex
full duplex
7. Types of communication media
Twisted and coaxial cables
duplex
Bluetooth
wired and wireless
8.It is the device which receives the data messages.
Message
Sender
Receiver
Transmission Media
Protocol
9.Some examples include twisted-pair wire, coaxial cable, radio waves etc.
Message
Sender
Receiver
Transmission Media
Protocol
10.The ------------communication is unidirectional.
Simplex
Half-Dudplex
Full-Duplex
Answer NOT given
11.The actual arrangements of cables and nodes on a network is called ___________
Geographical Topology
Network Topology
Logical Topology
Physical topology
12.What type of network topology shown in the picture?
Bus topology
Ring topology
Star topology
Tree topology
13.Each station can both transmit and receive, but not at the same time. When one device is sending, the other can only receive, and vice-versa.
Simplex
Half-Dudplex
Full-Duplex
Answer NOT given
14. What is the correct description for the type of topology shown in the picture?
All of the nodes in the network must be connected to each other for the network to work.
All nodes must be connected to a centeral communication device
All the nodes must connect to a central cable that act like the backbone for the network
A cable forms a closed loop with all computers and devices arranged along the ring.
15.What is the correct description for the type of topology shown in the picture?
All of the nodes in the network must be connected to each other for the network to work.
All nodes must be connected to a centeral communication device
A cable forms a closed loop with all computers and devices arranged along the ring.
The network consists of a single central cable (backbone), to which all computers and other devices connect.
16.In fiber optics , the signal source is --------
Radio
Infrared
Light
Very low frequency
17.The RG number gives us information about
Twisted pairs
Coaxial cable
Optical fibers
All of the above
18.The computers in Peter's office building are linked so that staff can share files and printers. This type of network is known as .
WAN
MAN
PAN
LAN
19.Which one of the following terms refer to wireless radio communication?
Bluetooth
Bandwidth
GPS
Ethernet
20.The set of rules a computer must follow on a networks is called ---------
Message
Transmission medium
Protocol
Ethernet
21.Synchronous transmission does not have--------
a start bit
a stop bit
gaps between bytes
all of the above
22.The coaxial standard used with cable television is
RG-11
RG-58
RG-59
RG-62
23.In ----------- communication there is one source and a group of destinations
Unicast
Multicast
Broadcast
None of the above
24.In ---------- transmission , bits are transmitted simultaneously
Asynchronous serial
Synchronous serial
Parallel
All of the above
25.Read the statement below base on the picture provided.
Find the false statement
When one of the nodes in the network malfunction, the whole network fails.
attaching and detaching nodes on this network is easy to do.
If the centeral communication device fails, the whole network fails.
This is the most expensive type of topology.
