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WorksheetsComputer Networks - practice mock tes
Total questions: 30
Worksheet time: 15mins
Network congestion occurs _________
in case of traffic overloading
when a system terminates
when connection between two nodes terminates
in case of transfer failure
Which of the following networks extends a private network across public networks?
local area network
virtual private network
enterprise private network
storage area network
The first Network was called ________
CNNET
NSFNET
ASAPNET
ARPANET
A _______ is the physical path over which a message travels
Path
Medium
Protocol
Route
DSL telcos provide which of the following services?
Wired phone access
ISP
Wired phone access and ISP
Network routing and ISP
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
What is a network?
a blue net you take to work
a job where you make fishing nets
1 computer not connected to anything
2 or more computers connected together
What do you need to connect networks together?
keyboard
client
printer
router
Application layer is implemented in ____________
End system
NIC
Ethernet
Packet transport
Transport layer is implemented in ______________
End system
NIC
Ethernet
Signal transmission
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
TCP/IP model does not have ______ layer but OSI model have this layer.
session layer
transport layer
application layer
network layer
TCP/IP model was developed _____ the OSI model.
prior to
after
simultaneous to
with no link to
The network layer is concerned with __________ of data.
bits
frames
packets
bytes
Which one of the following is not a function of network layer?
routing
inter-networking
congestion control
error control
Transmission control protocol ___________
is a connection-oriented protocol
uses a three way handshake to establish a connection
receives data from application as a single stream
all of the mentioned
A _____ is a TCP name for a transport service access point.
port
pipe
node
protocol
Transport layer protocols deals with ____________
application to application communication
process to process communication
node to node communication
man to man communication
If end to end delay is given by dend-end = N(dproc + dtrans + dprop) is a non congested network. The number of routers between source and destination is?
N/2
N
N-1
2N
The total nodal delay is given by ____________
dnodal = dproc – dqueue + dtrans + dprop
dnodal = dproc + dtrans – dqueue
dnodal = dproc + dqueue + dtrans + dprop
dnodal = dproc + dqueue – dtrans – dprop
Propagation delay depends on ___________
Packet length
Transmission rate
Distance between the routers
Speed of the CPU
A local telephone network is an example of a _______ network.
Packet switched
Circuit switched
Bit switched
Line switched
Most packet switches use this principle ____________
Stop and wait
Store and forward
Store and wait
Stop and forward
The packet of information at the application layer is called __________
Packet
Message
Segment
Frame
The ____________ translates internet domain and host names to IP address.
domain name system
routing information protocol
network time protocol
internet relay chat
Which protocol is a signaling communication protocol used for controlling multimedia communication sessions?
session initiation protocol
session modelling protocol
session maintenance protocol
resource reservation protocol
The number of objects in a Web page which consists of 4 jpeg images and HTML text is ________
7
4
5
6
Configuration management can be divided into which two subsystems?
Reconfiguration and documentation
Management and configuration
Documentation and dialing up
Configuration and dialing up
To use a Simple Network Management System, we need _______
Servers
IP
Protocols
Rules
In Network Management System, the division that is responsible for controlling access to network based on a predefined policy is called _________
Fault Management
Secured Management
Active Management
Security Management
