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WorksheetsNetworking Quiz 1
Total questions: 69
Worksheet time: 35mins
The function of DSLAM is to __________
Convert analog signals into digital signals
Convert digital signals into analog signals
Amplify digital signals
De-amplify digital signals
A _______ is the physical path over which a message travels.
Path
Medium
Protocol
Route
In computer network nodes are _________
the computer that originates the data
the computer that routes the data
the computer that terminates the data
all of the mentioned
TCP/IP model does not have ______ layer but OSI model have this layer.
session layer
transport layer
application layer
network layer
The first Network was called ________
CNNET
NSFNET
ASAPNET
ARPANET
Which layer is responsible for process to process delivery in a general network model?
network layer
transport layer
session layer
data link layer
TCP/IP model was developed _____ the OSI model.
prior to
after
simultaneous to
with no link to
OSI stands for __________
open system interconnection
operating system interface
optical service implementation
open service Internet
Which layer is used to link the network support layers and user support layers?
session layer
data link layer
transport layer
network layer
Application layer is implemented in ____________
End system
NIC
Ethernet
Packet transport
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
a process is active and another is inactive
Which of the following computer networks is built on the top of another network?
prior network
chief network
prime network
overlay network
Which of this is not a network edge device?
PC
Smartphones
Servers
Switch
In TCP IP Model, when data is sent from device A to device B, the 5th layer to receive data at B is __________
Application layer
Transport layer
Link layer
Session layer
Which of the following networks extends a private network across public networks?
Local Area Network
Virtual Private Network
Enterprise Private Network
Storage Area Network
Which of the following factors affect transmission rate in DSL?
The gauge of the twisted-pair line
Degree of electrical interference
Shadow fading
The gauge of the twisted-pair line and degree of electrical interference
A _________ set of rules that governs data communication.
Protocols
Standards
RFCs
Servers
Delimiting and synchronization of data exchange is provided by __________
Application layer
Session layer
Transport layer
Link layer
When collection of various computers seems a single coherent system to its client, then it is called _________
computer network
distributed system
networking system
mail system
In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is __________
a) Application layer
b) Transport layer
c) Link layer
d) Session layer
Transport layer is implemented in ______________
a) End system
b) NIC
c) Ethernet
d) Signal transmission
Three or more devices share a link in ________ connection.
Unipoint
Multipoint
Point to point
Simplex
Which of the following statements is not applicable for cable internet access?
It is a shared broadcast medium
It includes HFCs
Cable modem connects home PC to Ethernet port
Analog signal is converted to digital signal in DSLAM
Which layer provides the services to user?
application layer
session layer
presentation layer
physical layer
Bluetooth is an example of ________
Personal Area Network
Local Area Network
Virtual Private Network
Wide Area Network
DSL telcos provide which of the following services?
Wired phone access
ISP
Wired phone access and ISP
Network routing and ISP
HFC contains _______
Fibre cable
Coaxial cable
A combination of Fibre cable and Coaxial cable
Twisted Pair Cable
StarBand provides __________
FTTH internet access
Cable access
Telephone access
Satellite access
Home Access is provided by __________
DSL
FTTP
Cable
All of the mentioned
Network congestion occurs _________
in case of traffic overloading
when a system terminates
when the connection between two nodes terminates
in case of transmission failure
The functionalities of the presentation layer include ____________
a) Data compression
b) Data encryption
c) Data description
d) All of the mentioned
Communication channel is shared by all the machines on the network in ________
broadcast network
unicast network
multicast network
anycast network
Which of the following terms is not associated with DSL?
DSLAM
CO
Splitter
CMTS
Which address is used on the internet for employing the TCP/IP protocols?
physical address and logical address
port address
specific address
all of the mentioned
Which of the following statements can be associated with OSI model?
A structured way to discuss and easier update system components
One layer may duplicate lower layer functionality
Functionality at one layer no way requires information from another layer
It is an application specific network model
The physical layer is concerned with ___________
bit-by-bit delivery
process to process delivery
application to application delivery
port to port delivery
Which of this is not a constituent of residential telephone line?
A high-speed downstream channel
A medium-speed downstream channel
A low-speed downstream channel
An ultra-high speed downstream channel
In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______
a) Added
b) Removed
c) Rearranged
d) Randomized
The number of layers in ISO OSI reference model is __________
4
5
6
7
A single channel is shared by multiple signals by ____________
analog modulation
digital modulation
multiplexing
phase modulation
A __________ is a device that forwards packets between networks by processing the routing information included in the packet.
bridge
firewall
router
hub
Which of the following layers is an addition to OSI model when compared with TCP IP model?
a) Application layer
b) Presentation layer
c) Session layer
d) Session and Presentation layer
Transmission data rate is decided by ____________
network layer
physical layer
data link layer
transport layer
A list of protocols used by a system, one protocol for each layer, is called ________
protocol architecture
protocol stack
protocol set
system protocol
Which of the following tasks is not done by data link layer?
framing
error control
flow control
channel coding
Which transmission media provides the highest transmission speed in a network?
coaxial cable
twisted pair cable
optical fiber
electrical cable
The physical layer translates logical communication requests from the ______ into hardware specific operations.
data link layer
network layer
trasnport layer
application layer
Bits can be sent over guided and unguided media as analog signal by ___________
digital modulation
amplitude modulation
frequency modulation
phase modulation
The data link layer takes the packets from _________ and encapsulates them into frames for transmission.
network layer
physical layer
transport layer
application layer
The physical layer is responsible for __________
line coding
channel coding
modulation
all of the mentioned
The physical layer provides __________
mechanical specifications of electrical connectors and cables
electrical specification of transmission line signal level
specification for IR over optical fiber
all of the mentioned
In asynchronous serial communication the physical layer provides ___________
start and stop signalling
flow control
both start & stop signalling and flow control
only start signalling
Among the optical-distribution architectures that are essentially switched ethernet is __________
AON
PON
NON
MON
The portion of physical layer that interfaces with the media access control sublayer is called ___________
physical signalling sublayer
physical data sublayer
physical address sublayer
physical transport sublayer
Wireless transmission of signals can be done via ___________
radio waves
microwaves
infrared
all of the mentioned
The IETF standards documents are called ________
RFC
RCF
ID
DFC
In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are
___________
Added
Removed
Rearranged
Modified
The structure or format of data is called ___________
Syntax
Semantics
Struct
Formatting
Communication between a computer and a keyboard involves ______________ transmission.
Automatic
Half-duplex
Full-duplex
Simplex
Which organization has authority over interstate and international commerce in the
communications field?
ITU-T
IEEE
FCC
ISOC
When collection of various computers seems a single coherent system to its client, then it is
called _________
computer network
distributed system
networking system
mail system
How many layers are present in the Internet protocol stack (TCP/IP model)?
5
7
6
10
Which address is used to identify a process on a host by the transport layer?
physical address
logical address
port address
specific address
Which sublayer of the data link layer performs data link functions that depend upon the type of
medium?
logical link control sublayer
media access control sublayer
network interface control sublayer
error control sublayer
Header of a frame generally contains ______________
synchronization bytes
addresses
frame identifier
all of the mentioned
Automatic repeat request error management mechanism is provided by ________
logical link control sublayer
media access control sublayer
network interface control sublayer
application access control sublayer
When 2 or more bits in a data unit has been changed during the transmission, the error is called ____________
random error
burst error
inverted error
double error
CRC stands for __________
cyclic redundancy check
code repeat check
code redundancy check
cyclic repeat check
Which of the following is a data link protocol?
ethernet
point to point protocol
hdlc
all of the mentioned
