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,
1 : Which layer of the OSI model is responsible for node-to-node data transfe and error detection?
1
:
(a) Physical Layer
2
:
(b) Data Link Layer
3
:
(c) Network Layer
4
:
(d) Transport Layer
2 : What is the primary objective of computer networks?
1
:
(a) Increase computational power
2
:
(b) Enable resource sharing and data communication
3
:
(c) Enhance graphic capabilities
4
:
(d) Improve software development
3 : Which method of data transmission uses a dedicated communication path?
1
:
(a) Packet Switching
2
:
(b) Circuit Switching
3
:
(c) Full-Duplex
4
:
(d) Half-Duplex
4 : What is a key benefit of using computer networks in businesses?
1
:
(a) Increase computational power
2
:
(b) Enable resource sharing and efficient communication
3
:
(c) Enhance graphic capabilities
4
:
(d) Improve software development
5 : What is the main purpose of a firewall in network security?
1
:
(a) Convert data into a secure format
2
:
(b) Monitor and control network traffic
3
:
(c) Assign IP addresses
4
:
(d) Translate domain names
6 : What is encapsulation in the context of network communication?
1
:
(a) Converting data into a secure format
2
:
(b) Wrapping data with protocol information
3
:
(c) Monitoring network traffic
4
:
(d) Translating domain names to IP addresses
7 : Which protocol is used for reliable data transfer in the TCP/IP model?
1
:
(a) HTTP
2
:
(b) FTP
3
:
(c) TCP
4
:
(d) UDP
8 : Which network topology connects all devices to a central hub?
1
:
(a) Ring
2
:
(b) Mesh
3
:
(c) Bus
4
:
(d) Star
9 : Which device is used to connect multiple networks and direct data packet between them?
1
:
(a) Switch
2
:
(b) Hub
3
:
(c) Router
4
:
(d) Modem
10 : What is the function of the Domain Name System (DNS)?
1
:
(a) Assign IP addresses dynamically
2
:
(b) Translate domain names to IP addresses
3
:
(c) Secure data communication
4
:
(d) Monitor network traffic
11 : Which protocol is used to transfer files over the Internet securely?
1
:
FTP
2
:
SFTP
3
:
HTTP
4
:
SMTP
12 : Which device is used to connect multiple devices within a LAN and direct data only to the intended recipient?
1
:
Hub
2
:
Switch
3
:
Router
4
:
Repeater
13 : Which IP address class supports up to 16 million hosts?
1
:
Class A
2
:
Class B
3
:
Class C
4
:
Class D
14 : What is the common cable in bus topology called?
1
:
Backbone
2
:
Trunk
3
:
Spine
4
:
Mainline
15 : In ring topology, data transmission can be:
1
:
Unidirectional
2
:
Bidirectional
3
:
Multidirectional
4
:
Omnidirectional
16 : What does DHCP stand for?
1
:
Dynamic Host Configuration Protocol
2
:
Data Hosting Computer Protocol
3
:
Dynamic Host Computer Protocol
4
:
Digital Hardware Control Protocol
17 : Which topology uses a single common cable with two endpoints?
1
:
Ring
2
:
Bus
3
:
Star
4
:
Mesh
18 : How many types of IP addresses are there?
1
:
2
2
:
3
3
:
4
4
:
5
19 : How many layers does the TCP/IP protocol stack have?
1
:
2
2
:
7
3
:
5
4
:
4
20 : How many bits make up an IPv4 address?
1
:
31
2
:
29
3
:
32
4
:
30
21 : Which OSI layer is responsible for end-to-end communication and error handling?
1
:
Network Layer
2
:
Transport Layer
3
:
Data Link Layer
4
:
Application Layer
22 : What is the geometric representation of device relationships in a network called?
1
:
Ring
2
:
Topology
3
:
Star
4
:
Machine
23 : Which device connects two or more networks and routes data between them?
1
:
Switch
2
:
Router
3
:
Bridge
4
:
Modem
24 : Which protocol is used for email transmission?
1
:
SMTP
2
:
SNMP
3
:
FTP
4
:
DNS
25 : Which protocol automatically assigns IP addresses to devices?
1
:
DNS
2
:
ARP
3
:
DHCP
4
:
TCP
26 : Which network topology connects all devices to a single central hub?
1
:
Mesh
2
:
Star
3
:
Bus
4
:
Ring
27 : How many components are in the communication process?
1
:
5
2
:
6
3
:
7
4
:
8
28 : In which topology do devices connect in a circular fashion?
1
:
Ring
2
:
Star
3
:
Bus
4
:
Mesh
29 : What is the value range for each IPv4 group?
1
:
0-255
2
:
1-256
3
:
0-127
4
:
1-128
30 : IPv4 addresses are divided into how many groups?
1
:
2
2
:
4
3
:
6
4
:
8
31 : Which OSI layer handles physical cabling?
1
:
Physical Layer
2
:
Data Link Layer
3
:
Network Layer
4
:
Transport Layer
32 : How many bits are in an IPv6 address?
1
:
128
2
:
64
3
:
256
4
:
32
33 : Which protocol converts domain names into IP addresses?
1
:
DHCP
2
:
DNS
3
:
IP
4
:
ARP
34 : Which protocol transfers files over a network?
1
:
HTML
2
:
FTP
3
:
HTTP
4
:
ALP
35 : Which network spans large geographic areas like countries?
1
:
LAN
2
:
MAN
3
:
WAN
4
:
PAN
36 : IPv6 addresses are separated by:
1
:
Periods (.)
2
:
Colons (:)
3
:
Semicolons (;)
4
:
Dashes (-)
Chapter 6 : Introduction to computer network
Computer 9th MCQs || Ilam Ghar
Computer 9th
