WorksheetsComputer networks quiz 1
Total questions: 45
Worksheet time: 45mins
How many OSI layers are there?
5
6
7
8
At which layer do router devices operate?
Data Link Layer
Network Layer
Transport Layer
Physical Layer
The network is the 3rd OSI layer.
True
False
The Session layer communicates with which other layers?
None
Application and Transport
Transport and Network
Transport and Presentation
Name a protocol that operates at the Transport Layer.
PCT
PPT
TCP
None
Bits are packaged at which layer of the OSI model?
Physical Layer
Data Link Layer
Network Layer
Presentation Layer
The protocols ( Ethernet,Token Ring and FDDI) are working in which layer of OSI ?
Transport Layer
Presentation Layer
Data Link Layer
Application Layer
What is a computer network?
A device used to display information on a computer screen
A collection of interconnected computers and devices that can communicate and share resources
A type of software used to create documents and presentations
The physical casing that protects a computer’s internal components
What is internet?
A network of interconnected local area networks
A collection of unrelated computers
Interconnection of wide area networks
A single network
Which of the following is an example of Bluetooth?
wide area network
virtual private network
local area network
personal area network
What is the full form of OSI?
optical service implementation
open service Internet
open system interconnection
operating system interface
Which topology requires a multipoint connection?
Ring
Bus
Star
Mesh
What is the term for the data communication system within a building or campus?
MAN
LAN
PAN
WAN
Which of the following is the network layer protocol for the internet?
a)
b)
c)
d)
hypertext transfer protocol
file transfer protocol
ethernet
internet protocol
MAC address is of ___________
24 bits
36 bits
42 bits
48 bits
The maximum size of payload field in ethernet frame is __________
1000 bytes
1200 bytes
1300 bytes
1500 bytes
Ethernet frame consists of ____________
MAC address
IP address
Default mask
Network address
What is the access point (AP) in a wireless LAN?
device that allows wireless devices to connect to a wired network
wireless devices itself
both device that allows wireless devices to connect to a wired network and wireless devices itself
all the nodes in the network
In wireless ad-hoc network _________
access point is not required
access point is must
nodes are not required
all nodes are access points
Which multiple access technique is used by IEEE 802.11 standard for wireless LAN?
CDMA
CSMA/CA
ALOHA
CSMA/CD
In wireless network an extended service set is a set of ________
connected basic service sets
all stations
all access points
connected access points
How error detection and correction is done?
By passing it through equalizer
By passing it through filter
By amplifying it
By adding redundancy bits
Which error detection method is more efficient?
Parity check
Cyclic redundancy check
Parity & Cyclic redundancy check
Hamming code
Which error detection method uses one’s complement?
Simple parity check
Two dimensional parity check
CRC
Checksum
A ------------- error means that two or more bits in the data unit has changed.
Burst
Double bit
Single bit
Checksum
The ---------- of error is more difficult than --------
Detection, Correction
Correction, Convolution
Correction, Detection
Convolution, Detection
Bluetooth devices communicate using.....
Infrared
radiowaves
both A and B
nor A and B
An interconnected collection of piconet is called ___
scatternet
micronet
mininet
multinet
Bluetooth transceiver devices operate in ______ band.
2.4 GHz ISM
2.5 GHz ISM
2.6 GHz ISM
2.7 GHz ISM
In Bluetooth, the _______ layer is roughly equivalent to the physical layer of the Internet model.
radio
baseband
L2CAP
none of the above
In Bluetooth, the _____layer is roughly equivalent to the MAC sublayer in LANs.
radio
baseband
L2CAP
none of the above
In Bluetooth, the--------, is roughly equivalent to the LLC sublayer in LANs.
radio
baseband
L2CAP
none of the above
What are the two basic type of network architecture that you know?
1. STAR
2. RING
1. Client/ Server
2. Peer to peer
1. Server/ Customer
2. PC to PC
1. Stand Alone network
2. Interconnected network
every computer looking to access the Internet would be known as this
client
desktop
hub
server
______identifies company or commercial sites
.org
.com
.gov
.edu
process of encoding messages or information in such a way that only authorized parties can read it
layering
securing
encryption
phishing
name for the thin tubes of glass used by much of the Internet to send data quickly over long distances underground
ethernet
wifi
hub
fiber optic
What does ( PDU ) stand for ?
Power Distribution Unit
Protocol Data Unit
Power Data Unit
Protocol Distribution Unit
The term HTTP stands for?
Hyper terminal tracing program
Hypertext tracing protocol
Hypertext transfer protocol
Hypertext transfer program
Which one of the following is not a network topology?
Star
Ring
Bus
Peer to Peer
What type of network is this?
Star
Bus
LAN
WAN
Which type of network shares the communication channel among all the machines?
anycast network
multicast network
unicast network
broadcast network
What was the name of the first network?
ASAPNET
ARPANET
CNNET
NSFNET
A __________ is a device that forwards packets between networks by processing the routing information included in the packet.
bridge
router
firewall
hub
A list of protocols used by a system, one protocol per layer, is called ________
protocol architecture
protocol stack
protocol suite
protocol system
