Class-8
Subject: Computer Science
Chapter-1 Networking (Solved Exercise)
A. Choose the correct
answer:
1.
Which is the first ever networking?
a.
NSFNET b. ARPANET c.
APNET d. Internet
Answer:
ARPANET
2.
Which is the central computer in
star topology called?
a.
Node b. workstation c. server d.
PC
Answer:
Server
3.
Internet is an example of
___________________.
a.
LAN b. MAN c.
PAN d. WAN
Answer:
WAN
4.
Which topology does not have a
server?
a.
Ring topology b. Bus topology c. Star topology d.
Network
Answer:
Ring topology
5.
What is the full form of PAN?
a.
Private Area Network b.
Payment Area Network
c.
Precaution application network d.
Paying area network
Answer:
Private Area Network
B. Write true or
false:
1.
Nodes are independent computers
in a network. T
2.
Wi-Fi stands for wireless
fidelity. T
3.
WAN spread in a larger area than
LAN. T
4.
Computers in a network that
communicate with each other are called nodes. T
5.
LAN and WAN are different types
of networks. T
C. Define the
following terms:
1.
WAN 2. Server 3.
Workstation 4. Ring Topology 5. ARPANET
Answer:
WAN:
Network which spreads over countries is called Wide Area Network
(WAN). WAN is a group of computers which can be separated by large distances
and still tied together.
Server:
In a network, all the data, files, software, etc. which can be
shared remain on a server. Every server has a unique name on the network.
Workstation:
Nodes are the computers that are connected to a network and share all the
resources of the network. Nodes are also called workstations.
Ring
Topology: Each node in a ring topology is connected to
two and only two nodes. This is also called circular topology.
ARPANET:
The seed of networking was planted in 1969 when the U.S. Department of Defence
sponsored a project named Advanced Research Projects Agency Network (ARPANET).
The goal of this network was to connect computers at different universities and
U.S. Defence Services.
D. Answer the
following questions.
1.
Define
a computer network. Give three examples of nodes which you have seen around
you.
Answer:
When large numbers of computers are interconnected, it is called a
computer network. It may be defined as a group of computers and related
interconnected device to share data and information.
Examples:
Railway line, a bank ATM, a hospital etc.
2.
Differentiate
between star topology and ring topology.
Answer:
Star
Topology: Star topology has a central computer i.e.
server to which all the workstations are connected using point to point
connection. Nodes can be added easily in the existing network and if a node
fails to work, it can be detached easily.
Ring
Topology: Each node in a ring topology is connected to
two and only two nodes. This is also called circular topology. Data transmitted
from one of the nodes is passed to other node.
3.
What
is network Interface Card?
Answer:
Network Interface Card is a device that is connected to a server
and helps the workstation to establish network connections. To connect a
computer to a network and convert it into a workstation or node, a network
Interface Unit is required.
4. What
do you understand by the term topology? Name the networking topologies.
Answer:
The physical arrangement of nodes in a network is called topology.
The arrangement of hardware may be physical while flow of information within a
network may be logical.
Different
topologies are:
1.
Point-to-Point topology.
2.
Star topology
3.
Ring topology
4.
Bus topology
5.
Tree topology
6.
Mesh topology
5.
Writes
the steps to access a file from the shared drive.
Answer:
Follow these steps to access a file from a shared drive.
1. Double-click on This PC icon on
the desktop. A window appears displaying the drives on your PC.
2. Double-click on the Network icon
on the left side pane. A Network window appears displaying a list of shared
drives.
3. Select the desired shared drive
and search for the desired file on that drive.
4.
To copy the file, right-click on
it and select the copy option.
5. Now, select this PC icon on the
left side pane. Click on the drive Local Disk (E): where the copied file needs
to be planned.
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