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CBSE AISSCE 2017-2018 Marking Scheme for Computer Science
(2018-2019 Sub Code: 083 Paper Code: 91)

Advantages of Star Topology over Bus Topology
● Faster communication as compared to Bus topology
● Independent line of connection allows freedom of removing or adding nodes
from the network

Disadvantages of Star Topology over Bus Topology
● Expensive as compared to Bus topology
● Long cable length

(1 Mark for writing any correct difference between Bus and Star
Topology)
(½ Mark for writing any correct advantage of Star Topology over Bus)
(½ Mark for writing any correct disadvantage of Star Topology over
Bus)

(b) Classify each of the following Web Scripting as Client Side Scripting and Server 2
Side Scripting:
(i) JavaScripting (ii) ASP (iii) VB Scripting (iv) JSP

Ans (i) Client Side Scripting / Server Side Scripting (ii) Server Side Scripting
(iii) Client Side Scripting (iv) Server Side Scripting

(½ Mark for writing each correct classification)
(c) Write the expanded names for the following abbreviated terms used in Networking 2
and Communications:
(i) SMTP (ii) VoIP (iii) GSM (iv) WLL

Ans (i) ​Simple Mail Transfer Protocol
(ii) Voice over Internet Protocol (Voice over IP)
(iii) Global System for Mobile Communication

(iv) Wireless Local Loop
(½ Mark for writing each correct expansion)

(d) CASE STUDY BASED QUESTION:

Ayurveda Training Educational Institute is setting up its centre in Hyderabad with
four specialised departments for Orthopedics, Neurology and Pediatrics along with
an administrative office in separate buildings. The physical distances between
these department buildings and the number of computers to be installed in these
departments and administrative office as given as follows. You as a network

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