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Mobile Telecommunication Technologies, Network Security and Internet Services
Question
Wired Faculty App

Janish Khanna 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 different applications running on it. 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:

  • Computer Virus

  • Spam Mail

  • Computer Bacteria

  • Trojan Horse

Answer

A.

Computer Virus

D.

Trojan Horse

Computer virus can spread through external media such as CDs, pen drive etc. It is designed to infect the host program and gain control over the system without the owner’s knowledge.

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Some More Questions From Mobile Telecommunication Technologies, Network Security and Internet Services Chapter

Ms. Raveena Sen is an IT expert and a freelancer. She recently used her skills to access the Admin password for the network server of Super Dooper Technology Ltd. and provided confidential data of the organization to its CEO, informing him about the vulnerability of their network security. Out of the following options (i) to (iv), which one most appropriately defines Ms.Sen?
Justify the reason for your chosen option:

Uplifting Skills Hub India is a knowledge and skill community which has an aim to uplift the standard of knowledge and skills in the society. It is planning to set up its training centers in multiple towns and villages pan India with its head offices in the nearest cities. They have created a model of their network with a city, a town and 3 villages as follows.
As a network consultant, you have to suggest the best network related solutions for their issues/problems raised in (1) to (4), keeping in mind the distances between various locations and other given parameters.

Shortest distances between various locations:

VILLAGE 1 to B_TOWN 2 KM
VILLAGE 2 to B_TOWN 1.0 KM
VILLAGE 3 to B_TOWN 1.5 KM
VILLAGE 1 to VILLAGE 2 3.5 KM
VILLAGE 1 to VILLAGE 3 4.5 KM
VILLAGE 2 to VILLAGE 3 2.5 KM
A_CITY Head Office to B_HUB 25 KM

Number of Computers installed at various locations are as follows:

B_TOWN 120
VILLAGE 1 15
VILLAGE 2 10
VILLAGE 3 15
A_CITY OFFICE 6

Note:

  • In Villages, there are community centres, in which one room has been given as training centre to this organization to install computers.
  • The organization has got financial support from the government and top IT companies.
  1. Suggest the most appropriate location of the SERVER in the B_HUB (out of the 4 locations), to get the best and effective connectivity. Justify your answer.
  2. Suggest the best wired medium and draw the cable layout (location to location) to efficiently connect various locations within the B_HUB.
  3. Which hardware device will you suggest to connect all the computers within each location of B_HUB?
  4. Which service/protocol will be most helpful to conduct live interactions of Experts from Head Office and people at all locations of B_HUB?