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WorksheetsIT 53 - Networking 1 Final Exam
Total questions: 50
Worksheet time: 13hrs 30mins
Computer Network is
Collection of hardware components and computers
Interconnected by communication channels
Sharing of resources and information
All of the Above
What is a Firewall in Computer Network?
The physical boundary of Network
An operating System of Computer Network
A system designed to prevent unauthorized access
A web browsing Software
How many layers does OSI Reference Model has?
4
5
6
7
DHCP is the abbreviation of
Dynamic Host Control Protocol
Dynamic Host Configuration Protocol
Dynamic Hyper Control Protocol
Dynamic Hyper Configuration Protocol
DNS is the abbreviation of
(a)
What is the meaning of Bandwidth in Network?
Transmission capacity of a communication channels
Connected Computers in the Network
Class of IP used in Network
None of Above
ADSL is the abbreviation of
(a)
What is the use of Bridge in Network?
to connect LANs
to separate LANs
to control Network Speed
All of the above
Router operates in which layer of OSI Reference Model?
Layer 1 (Physical Layer)
Layer 3 (Network Layer)
Layer 4 (Transport Layer)
Layer 7 (Application Layer)
Each IP packet must contain
Only Source address
Only Destination address
Source and Destination address
Source or Destination address
Bridge works in which layer of the OSI model?
Application layer
Transport layer
Network layer
Datalink layer
(a) provides a connection-oriented reliable service for sending messages
Which layers of the OSI model are host-to-host layers?
Transport, Session, Presentation, Application
Network, Transport, Session, Presentation
Datalink, Network, Transport, Session
Physical, Datalink, Network, Transport
Which of the following IP address class is Multicast
Class A
Class B
Class C
Class D
Which of the following is correct regarding Class B Address of IP address
Network bit – 14, Host bit – 16
Network bit – 16, Host bit – 14
Network bit – 18, Host bit – 16
Network bit – 12, Host bit – 14
The last address of IP address represents
(a)
How many bits are there in the Ethernet address?
(a)
How many layers are in the TCP/IP model?
(a)
Which of the following layer of OSI model also called end-to-end layer?
Presentation layer
Network layer
Session layer
Transport layer
Why IP Protocol is considered as unreliable?
A packet may be lost
Packets may arrive out of order
Duplicate packets may be generated
All of the above
What is the minimum header size of an IP packet?
(a)
Which of following provides reliable communication?
TCP
IP
UDP
All of the above
What is the address size of IPv6 ?
(a)
The Internet is an example of
Cell switched network
circuit switched network
Packet switched network
All of above
What is the uses of subnetting?
It divides one large network into several smaller ones
It divides network into network classes
It speeds up the speed of network
None of above
Repeater operates in which layer of the OSI model?
Physical layer
Data link layer
Network layer
Transport layer
What is the benefit of the Networking?
File Sharing
Easier access to Resources
Easier Backups
All of the Above
What is the size of MAC Address?
(a)
What is the use of Ping command?
To test a device on the network is reachable
To test a hard disk fault
To test a bug in a Application
To test a Pinter Quality
MAC Address is the example of
Transport Layer
Data Link Layer
Application Layer
Physical Layer
Difference between T568A and T568B is
Difference in wire color
Difference in number of wires
Just different length of wires
Just different manufacturer standards
The meaning of Straight-through Cable is
Four wire pairs connect to the same pin on each end
The cable Which Directly connects Computer to Computer
Four wire pairs not twisted with each other
The cable which is not twisted
What is the size of Host bits in Class B of IP address?
(a)
What is the maximum header size of an IP packet?
(a)
In RAID 1, data is mirrored between two disks.
True
False
Which of the following is/are Protocols of Application?
FTP
DNS
Telnet
All of above
What is the typical range of Ephemeral ports?
1 to 80
1 to 1024
80 to 8080
1024 to 65535
Two devices are in network if
a process in one device is able to exchange information with a process in
another device
a process is running on both devices
PIDs of the processes running of different devices are same
none of the mentioned
Which one of the following computer network is built on the top of another network?
prior network
chief network
prime network
overlay network
Bluetooth is an example of
personal area network
local area network
virtual private network
none of the mentioned
A (a) is a device that forwards packets between networks by processing
the routing information included in the packet.
Which of this is not a guided media?
Fiber optical cable
Coaxial cable
Wireless LAN
Copper wire
UTP is commonly used in
DSL
FTTP
HTTP
None of the mentioned
Coaxial cable consists of (a) concentric copper conductors.
Terrestrial radio channels are broadly classifed into (a) groups.
HTTP is (a) protocol.
FTP server listens for connection on port number
(a)
High speed ethernet works on
coaxial cable
twisted pair cable
optical fiber
none of the mentioned
The maximum size of payload field in ethernet frame is
(a)
Physical or logical arrangement of network is (a) .
