Computer Quiz on Computer Network for RRBs/IBPS Exam |

Q1.Which
physical layer devices can be used to enlarge the area covered by a single LAN
segment?

1.Switch

2.NIC

3.Hub

4.Repeater

5.RJ45
transceiver

(a) 1 only

(b) 1 and 3

(d) 5 only

(e) None of
these

Q2.Which of
the following describe router functions?

(a) Packet
switching

(b) Packet
filtering

(d) Path
selection

(e) All of
the above

Q3.A
__________ is a computer network that usually spans a city or a large campus.

(a) LAN

(b) DAN

(d) WAN

(e) None of
these

Q4.What does
MAN stands for?

(a) Micro
area network

(b) Metropolitan
area network

(d) Mix area
network

(e) None of
these

Q5.How long
is an IPv6 address?

(a) 32 bits

(b) 128
bytes

(d) 128 bits

(e) None of
these

Q6.What does
P2P stands for?

(a) Peer ToPeer

(b) Peek to
peek

(d) Pair to
pair

(e) All of
these

Q7.By an
intranet we mean:

(a) a LAN of
an organization

(b) a Wide
Area Network connecting all branches of an organization

(d) a
network connecting all computers of an organization and using the internet
protocol

(e) None of
these

Q8.What does
LAN stands for?

(a) Lane
Area Network

(b) Local
Army Network

(d) Local
Area Networking

(e) None of
these

Q9. If you
wish to extend the length of the network withouthaving the signal degrade, you
would use a __________.

(a) repeater

(b) router

(d)switch

(e) None of
these

Q10.LANs can
be connected by devices called ______ which operate on the data link layer.

(a) hub

(b) bridges

(d) tunnel

(e) None of
these

Q11.Encryption
and Decryption are the functions of __________ layer.

(a) transport

(b) session

(d) physical

(e) presentation

Q12.IP
addresses are converted to ____________.

(a) a binary
string

(b) alphanumeric
string

(d)a
hexadecimal string

(e) None of
the above

Q13.The layer layer closest to
transmission medium.

(a) transport

(b) network

(d)physical

(e) None of
these

Q14.What is
a Firewall in Computer Network?

(a) The
physical boundary of Network

(b) An
operating System of Computer Network

(d) A web
browsing Software

(e) None of
these

Q15.Which of
the following is the fastest media of data transfer?

(a) Co-axial
Cable

(b) Untwisted
Wire

(d) Fiber
Optic

(e) None of
these

Solutions

S1. Ans. (c)
Sol. A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network. A hub is basically a multiport repeater. A hub connects multiple wires coming from different branches, for example, the connector in star topology which connects different stations.

S2. Ans. (e)
Sol. All of the given options are router functions.

S3. Ans. (c)
Sol. MAN is abbreviation for Metropolitan Area Network and is a computer network that usually spans a city or a large campus.

S4. Ans. (b)
Sol. MAN is abbreviation for Metropolitan Area Network.

S5. Ans. (d)
Sol. IPv6 address is 128 bits long.

S6. Ans. (a)
Sol. P2P stands for Peer To Peer.

S7. Ans. (d)
Sol. An intranet is a private network accessible only to an organization’s staff.

S8. Ans. (c)
Sol. LAN stands for Local Area Network.

S9. Ans. (a)
Sol. If you wish to extend the length of the network without having the signal degrade, you would use a repeater.

S10. Ans. (b)
Sol. LANs can be connected by bridges. Bridge is a device used to connect two separate Ethernet networks into one extended Ethernet.

S11. Ans. (e)
Sol. Encryption and Decryption are the functions of presentation layer.

S12. Ans. (c)
Sol. IP addresses are converted to a hierarchy of domain names.

S13. Ans. (d)
Sol. Physical layer is closest to transmission medium.

S14. Ans. (c)
Sol. A firewall is a network security system designed to prevent unauthorized access to or from a private network.

S15. Ans. (d)
Sol. Fiber Optic is the fastest media of data transfer. An optical fiber (or optical fibre) is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair.