PREVIOUS YEAR SOLVED PAPERS - JULY 2016 Paper 2

Avatto > > UGC NET COMPUTER SCIENCE > > PREVIOUS YEAR SOLVED PAPERS > > JULY 2016 Paper 2

Option : B
Explanation :
An attacker sits between customer and Banker, and captures the information from thecustomer and retransmits to the banker by altering the information. This attack is called as Replay attack.
Passive Attack are in the nature of monitoring, or eavesdropping of transmissions of many types. In this attack, attacker try to gain information or the information that is being transmitted in the message.
Masquerade Attackis a type network attack where the attacker pretends to be an authorized user of a system in order to gain access.
Denial of Service Attack(DoS) is atype of network attack in which attacker shut down a machine or network, making it inaccessible to its intended users.

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Option : B
Explanation :
Business intelligence and Data warehousing is used for forecasting and Data mining.Correct
Business intelligence and Data warehousing is used for analysis of large volumes of sales data.Correct

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Option : C
Explanation : Pipelining improves performance by exploiting instruction-level parallelism. So, option (C) is correct.

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Option : A
Explanation :
Data scrubling is a process to upgrade the quality of data, before it is moved into Data warehouse.Correct
Data scrubling is a process of rejecting data from data warehouse to create indexes.Incorrect

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Option : B
Explanation :
Strategic value of data mining is time-stamping.Correct Information collection is an expensive process in building an expert system.Correct

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