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7. (a) Differentiate between Radio Link and Microwave in context of wireless
communication technologies. 2
(b) Amit used a pen drive to copy files from his friend’s laptop to his office computer.
Soon his office computer started abnormal functioning. Sometimes it would restart
by itself and sometimes it would stop functioning totally. Which of the following
options out of (i) to (iv), would have caused the malfunctioning of the computer ?
Justify the reason for your chosen option : 2
(i) Computer Worm
(ii) Computer Virus
(iii) Computer Bacteria
(iv) Trojan Horse

(c) Jai is an IT expert and a freelancer. He recently used his skills to access the
Administrator password for the network server of Megatech Corpn Ltd. and
provided confidential data of the organization to its Director, informing him about
the vulnerability of their network security. Out of the following options (i) to (iv),
which one most appropriately defines Jai ? 2
Justify the reason for your chosen option :
(i) Hacker
(ii) Cracker
(iii) Operator
(iv) Network Admin

(d) Hi Speed Technologies Ltd. is a Delhi based organization which is expanding its
office setup to Chandigarh. At Chandigarh office campus, they are planning to have
3 different blocks for HR, Accounts and Logistics related work. Each block has
number of computers, which are required to be connected in a network for
communication, data and resource sharing.
As a network consultant, you have to suggest the best network related solutions for
them for issues/problems raised in (i) to (iv), keeping in mind the distances
between various blocks / locations and other given parameters.

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