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Master
of Business Administration- MBA Semester 3
MI0035
–Computer Networks -4 Credits
(Book
ID: B1481)
Assignment
(60 marks)
Note:
Answer all questions. Kindly note that answers for 10 marks questions should
not exceed
400
word. Each question is followed by evaluation scheme.
Q.1.
Write short notes on: 2, 3, 5
a.
LAN
b.
Analog and digital data transmission
c.
High level data link control
ANS:
a)
Local Area Network (LAN)
Local Area Network (LAN) is a
small computer network, in which two or more computers are directly
connected within a single building or office. It is a small privately
owned network, covering a distance of up to 10km that helps to connect
personal computers or workstations to share information and resources.
LANs use
Q2.
Videoconferencing is used to conduct meetings with the people who are located
in far distance. Videoconferencing is an example of which type of computer
networks? Explain in detail the different types of networks with example. (Identifying
the correct type – 2 marks, list the different types of networks – 2 mark,
explaining the types- 6 marks)
Ans:
Computer
network provides powerful medium of communication for employees. Nowadays,
Companies are using electronic mail for its daily communication. Apart from
email, companies are using videoconferencing
as a computer-assisted communication medium. This videoconferencing helps
companies to conduct meetings with people, who are located at a far distance
Q3.
A protocol helps in establishing the communication between two systems. Protocols
are mainly divided into asynchronous and synchronous protocols. List and
describe in detail the different types of protocols that are classified under
the two main protocols. (list and correct differentiating of protocols under
the two main types – 5 marks, explanation- 5 marks) 10 marks
Ans:
Asynchronous
protocols Asynchronous transmission is a data transfer method
in which a collection of data is sent together, spaced by varying time
intervals. Each data character is preceded by a start-bit and is followed by an
end-bit to inform the receiver where the character begins and ends.
Asynchronous protocols are the communication protocols which are used in
asynchronous transmission. An asynchronous protocol sends data to
Q.4.
Integrated Services for Digital Network (ISDN) is a set of communication
standards for
Simultaneous
digital transmission of voice, video, data, and other network services over the
traditional circuits of the public switched telephone network. It was first
defined in 1988 in the CCITT red book. Explain the different types of ISDN with
their features and advantages for each one of them. (Explaining Two different
types , Features of both of them , Advantages of both of them) 2,4,4
ANS:
ISDN channels
The term ISDN channel means the
passage or transmission of signalling and user information in a single
direction. The three basic ISDN channels are Data channel (D channel),
Bearer channel (B channel), and Hybrid channel (H channel).
Q.5.
ABC company is an internet service provider. The main goal of ABC is to provide
24 X7X365 storage capacity, storage management and internet service to the
customers. It now needs a solution that will eliminate downtime. Downtime is
nothing but the time during which a computer or computer system is down, or
inoperative due to hardware or software failure. We also need the flexibility
in quick response to both the development in customer base and additional
capacity and service demands of the customers. ABC company took the help of
network storage infrastructure software provider to achieve their goals by
providing support for end to end redundancy and bondless scalability. By
creating a scalable storage network with the ability to confidentially deliver
the 24X7X365 reliability, and speed that outsourcing customers demand, it has
enabled the ISP/SSP to attract and retain customers and substantially build its
business. As the same time, the solution has effectively lowered ABC company’s
total cost of ownership for its entire storage solution: the IP Stor/CNP union
has enabled a painless, flexible cost effective, scalable solution. The
complementary IP Stor/CNT solution has allowed to its customers easily and
cost- effectively. a. What were the problem which ABC Company was facing before
consulting network storage infrastructure software provider? b. What were the
benefits of implementing a scalable storage network? c. List the different
classes of ISPs and their applications. ( Mentioning the problems faced by ABC
company after reading the SLM, Listing the benefits, Listing the different
classes of ISP and their applications) 2,3,5
ANS:
The
problems faced by ABC Company after reading the SLM
The important issue to address
while choosing connectivity solutions is, whether application servers are being
connected to storage or disparate networks are being interconnected. The key
factors to be considered are elimination of single points of failure, high
scalability, and ease of set up. The FalcoStor’s IP Stor software
Q6.
How are the different topologies of computer networks arranged? Explain the working
of each of them (listing the different topologies with examples – 2 marks,
explanation- 4 marks, diagrams- 4 marks) 10 marks
Ans:
Types
of topology :
1) Bus topology
2) Ring topology
3) Star topology
4) Tree topology
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