Multiple Choice Questions of Computer Networking
1-1 Computer Network is
A.
Collection of hardware
components and computers
B.
Interconnected by communication channels
C. Sharing of resources and information
D. All of the Above
1-2 What is a Firewall in Computer Network?
A.
The physical boundary
of Network
B.
An operating System
of Computer Network
C. A system
designed to prevent
unauthorized access
D. A web browsing Software
1-3 How many layers
does OSI Reference Model has?
A.
4
B.
5
C. 6
D. 7
1-4 DHCP is the abbreviation of
A.
Dynamic Host Control
Protocol
B.
Dynamic Host Configuration Protocol
C. Dynamic Hyper Control Protocol
D. Dynamic Hyper
Configuration Protocol
1-5 IPV4 Address is
A.
8 bit
B.
16 bit
C. 32 bit
D. 64 bit
1-6 DNS is the abbreviation of
A.
Dynamic Name System
B.
Dynamic Network System
C. Domain Name System
D. Domain Network
Service
1-7 What is the meaning of Bandwidth in Network?
A.
Transmission capacity of a communication channels
B.
Connected Computers in the Network
C. Class of IP used in Network
D. None of Above
1-8 ADSL is the abbreviation of
A.
Asymmetric Dual Subscriber Line
B.
Asymmetric Digital System Line
C. Asymmetric Dual System Line
D. Asymmetric Digital
Subscriber Line
1-9 What is the use of Bridge in Network?
A.
to connect LANs
B.
to separate LANs
C. to control
Network Speed
D. All of the above
1-10 Router operates in which layer of OSI Reference Model?
A.
Layer 1 (Physical Layer)
B.
Layer 3 (Network
Layer)
C. Layer 4 (Transport Layer)
D. Layer 7 (Application Layer)
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1 – D / 2 – C / 3
– D
/ 4 – B / 5 – C / 6
– C
/ 7 – A / 8 – D / 9 – A / 10 – B
Multiple Choice Questions of Computer Networking
2-1 Each IP packet must contain
A. Only Source
address
B. Only Destination address
C. Source and Destination address
D. Source or Destination address
2-2 Bridge works
in which layer of the OSI model?
A. Appliation layer
B. Transport layer
C. Network layer
D. Datalink layer
2-3 provides a connection-oriented reliable service for sending messages
A. TCP
B. IP
C. UDP
D. All of the above
2-4 Which layers of the OSI model are host-to-host layers?
A. Transport, Session,
Persentation, Application
B. Network, Transport, Session, Presentation
C. Datalink, Network,
Transport, Session
D. Physical, Datalink,
Network, Transport
2-5 Which of the following IP address class is Multicast
A. Class A
B. Class B
C. Class C
D. Class D
2-6 Which of the following is correct regarding
Class B Address
of IP address
A. Network bit – 14, Host bit – 16
B. Network bit – 16, Host bit – 14
C. Network bit – 18, Host bit
– 16
D. Network bit – 12, Host bit – 14
2-7 The last address
of IP address represents
A. Unicast address
B. Network address
C. Broadcast address
D. None of above
2-8 How many bits are there in the Ethernet address?
A. 64 bits
B. 48 bits
C. 32 bits
D. 16 bits
2-9 How many layers are in the TCP/IP
model?
A. 4 layers
B. 5 layers
C. 6 layers
D. 7 layers
2-10 Which of the following layer
of OSI model also called
end-to-end layer?
A. Presentation layer
B. Network layer
C. Session layer
D. Transport layer
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1 – C / 2 – D / 3 – A / 4 – A / 5 – D / 6 – A / 7 – C
/ 8
– B / 9 – A / 10 – D
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Multiple Choice Questions of Computer Networking
3-1. Why IP Protocol is considered as unreliable?
A. A packet may be lost
B. Packets may arrive out of order
C. Duplicate packets may be generated
D. All of the above
3-2. What is the
minimum header size of an IP packet?
A. 16 bytes
B. 10 bytes
C. 20 bytes
D. 32 bytes
3-3. Which of following provides
reliable communication?
A. TCP
B. IP
C. UDP
D. All of the above
3-4. What is the address
size of IPv6 ?
A. 32 bit
B. 64 bit
C. 128 bit
D. 256 bit
3-5. What is the size of Network
bits & Host bits of Class A of IP address?
A. Network bits 7, Host bits 24
B. Network bits 8, Host bits 24
C. Network bits 7, Host bits 23
D. Network bits 8, Host bits 23
3-6. What does Router do in a network?
A. Forwards a packet to all
outgoing links
B. Forwards a packet to the next free outgoing
link
C. Determines on which outing
link a packet is to be forwarded
D. Forwards a packet to all outgoing
links except the originated link
3-7. The Internet
is an example of
A. Cell switched
network
B. circuit switched
network
C. Packet switched
network
D. All of above
3-8. What does protocol defines?
A. Protocol defines
what data is communicated.
B. Protocol defines
how data is communicated.
C. Protocol defines
when data is communicated.
D. All of above
3-9. What is the uses of subnetting?
A. It divides
one large network
into several smaller
ones
B. It divides
network into network
classes
C. It speeds up the speed of network
D. None of above
3-10. Repeater operates
in which layer
of the OSI model?
A. Physical layer
B. Data link layer
C. Network layer
D. Transport layer
|
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1 – D / 2 – C / 3 – A / 4 – C / 5 – A / 6 – C / 7 – C
/ 8
– D / 9 – A / 10 – A
Multiple C===hoice Questions
of Computer Networking
4-1. What is the benefit
of the Networking?
A. File Sharing
B. Easier access
to Resources
C. Easier Backups
D. All of the Above
4-2. Which of the following
is not the Networking Devices?
A. Gateways
B. Linux
C. Routers
D. Firewalls
4-3. What is the size of MAC Address?
A. 16-bits
B. 32-bits
C. 48-bits
D. 64-bits
4-4. Which of the
following can be Software?
A. Routers
B. Firewalls
C. Gateway
D. Modems
4-5. What is the use of Ping command?
A. To test a device
on the network is reachable
B. To test a
hard disk fault
C. To test a bug in a Application
D. To test a Pinter
Quality
4-6. MAC Address
is the example of
A. Transport Layer
B. Data Link Layer
C. Application Layer
D. Physical Layer
4-7. Routing tables
of a router keeps track of
A. MAC Address
Assignments
B. Port Assignments to network devices
C. Distribute IP address to network devices
D. Routes to use for forwarding data to its destination
4-8. Layer-2
Switch is also called
A. Multiport Hub
B. Multiport Switch
C. Multiport Bridge
D. Multiport NIC
4-9. Difference between
T568A and T568B is
A. Difference in wire color
B. Difference in number of wires
C. Just different length of wires
D. Just different
manufacturer standards
4-10. The meaning
of Straight-through Cable is
A. Four wire pairs
connect to the same pin on each end
B. The cable Which Directly
connects Computer to Computer
C. Four wire pairs not twisted with each other
D. The cable
which is not twisted
|
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1 – D / 2 – B
/ 3
– C / 4 – B / 5 – A / 6 – B / 7 – D / 8 – C / 9 – D / 10 – A
Multiple Choice Questions
of Computer Networking
5-1 Which of the following is not the External Security
Threats?
A. Front-door Threats
B. Back-door Threats
C. Underground Threats
D. Denial of Service (DoS)
5-2 What is the Demilitarized Zone?
A. The area between firewall
& connection to an external
network
B. The area between ISP to Military
area
C. The area surrounded by secured servers
D. The area surrounded by the Military
5-3 What is
the full form of RAID ?
A. Redundant Array of Independent Disks
B. Redundant Array
of Important Disks
C. Random Access of Independent Disks
D. Random Access
of Important Disks
5-4 What is the maximum header
size of an IP packet?
A. 32 bytes
B. 64 bytes
C. 30 bytes
D. 60 bytes
5-5 What is the size of Host bits in Class B
of IP address?
A. 04
B. 08
C. 16
D. 32
5-6 What is the usable size of Network
bits in Class B of IP address?
A. 04
B. 08
C. 14
D. 16
5-7 In which type of RAID, data is mirrored between
two disks.
A. RAID 0
B. RAID 1
C. RAID 2
D. RAID 3
5-8 What do you mean by broadcasting in Networking?
A. It means addressing a packet to all machine
B. It means addressing a packet to some machine
C. It means addressing a packet to a particular machine
D. It means addressing a packet to except a particular machine
5-9 Which of the following is/are Protocols of Application?
A. FTP
B. DNS
C. Telnet
D. All of above
5-10 Which of the following protocol
is/are defined in Transport
layer?
A. FTP
B. TCP
C. UDP
D. B & C
|
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1 – C / 2 – A / 3 – A / 4 – D / 5 – C / 6 – C / 7 – B
/ 8
– A / 9 – D / 10 – D
Multiple Choice Questions
of Computer Networking
6-1. What is the IP Address
range of APIPA?
A. 169.254.0.1 to 169.254.0.254
B. 169.254.0.1 to 169.254.0.255
C. 169.254.0.1 to 169.254.255.254
D. 169.254.0.1 to 169.254.255.255
6-2. Which of the following is correct in VLSM?
A. Can have subnets of different sizes
B. Subnets must be
in same size
C. No required
of subnet
D. All of above
6-3. What does the port number in a TCP connection specify?
A. It specifies
the communication process
on the two end systems
B. It specifies the quality of the data & connection
C. It specify
the size of data
D. All of the above
6-4. The class-based addressing is also known as
A. Modern Model
B. Classful Model
C. Classless Model
D. Heterogeneous Model
6-5. Which of the following is correct in CIDR?
A. Class A includes Class
B network
B. There are only two networks
C. There are high & low class network
D. There is no concept
of class A, B, C networks
6-6. What is the size of
Source and Destination IP address in IP header?
A. 4 bits
B. 8 bits
C. 16 bits
D. 32 bits
6-7. Which of the following
is reliable communication?
A. TCP
B. IP
C. UPD
D.
All of them
6-8. What is the typical
range of Ephemeral ports?
A. 1 to 80
B. 1 to 1024
C. 80 to 8080
D. 1024 to 65535
6-9. What is the purpose
of the PSH flag in the TCP header?
A. Typically used to indicate
end of message
B. Typically used to indicate
beginning of message
C. Typically used to push the message
D. Typically used to indicate
stop the message
6-10. What is the
natural mask for a class C Network?
A. 255.255.255.1
B. 255.255.255.0
C. 255.255.255.254
D. 255.255.255.255
|
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1 – C / 2 – A / 3 – A / 4 – B / 5 – D / 6 – D / 7 – A / 8 – D / 9 – A / 10 – B
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