UGC NET Paper1 Previous Year Solved Papers MCQ - 24th June 2019 Morning Shift

36 Select the true statement about an operating system (OS)?

A
An OS controls peripheral, allocates memory and organises data into fields and records.
B
An OS provides protection against viruses and controls peripherals.
C
An OS controls peripheral, and allocates memory and processor time.
D
An OS controls the processor and peripherals and allows the user to connect to the internet.

An operating system (OS) is software which acts as an interface between the end user and computer hardware. Every computer must have at least one OS to run other programs.

37 Which of the following is a type of malware intentionally inserted into a software system that will set off a malicious function when specified conditions are met?

A logic bomb is a piece of code intentionally inserted into a software system that will set off a malicious function when specified conditions are met. For example, a programmer may hide a piece of code that starts deleting files, should they ever be terminated from the company.

38 Which of the following statements(s) is/are true in respect of wireless technology?
P: Bluetooth is a wireless technology that can be used to connect a headset to a mobile phone.
Q: Bluetooth is a long-range wireless technology and is a low-cost means of data transfer.

Bluetooth is a wireless technology standard for exchanging data between fixed and mobile devices over short distances using short-wavelength UHF radio waves in the industrial, scientific and medical radio bands, from 2.400 to 2.485 GHz, and building personal area networks (PANs). It was originally conceived as a wireless alternative to RS-232 data cables.

39 Assertion (A): High concentration of ozone in the troposphere is desirable.
Reasons (R): Ozone present in the atmosphere protects the living organisms on the surface of earth from the harmful ultraviolet radiation of the sun.

Choose the correct answer from the options given below:

Ozone occurs in two layers of the atmosphere. The layer closest to the Earth's surface is the troposphere. Here, ground-level or "bad" ozone is an air pollutant that is harmful to breathe and it damages crops, trees and other vegetation. It is a main ingredient of Urban smog. Therefore high concentration of in the lower troposphere is not desirable. Whereas when it meets to a level about 6 miles up, where it meets the second layer, the stratosphere it protects life on Earth from

40 In post-independence India, which one of the following committee/commission’s report deals with all levels of education in India?

The Education Commission under the chairman of Kothari was appointed by the Government of India by resolution on 14 July 1964 to advise Government on the national pattern of education. The Commission set up 12 Task Forces on: (1) School Education; (2) Higher Education; (3) Technical Education; (4) Agricultural Education; (5) Adult Education; (6) Science Education and Research; (7) Teacher Training and Teacher Status; ( 8) Student Welfare; (9) New Techniques and Methods; (10) Manpower; (11) Educational Administration; and (12) Educational Finance.

UGC NET Paper1 Previous Year Solved Papers MCQ - 24th June 2019 Morning Shift

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UGC NET Paper1 Previous Year Solved Papers MCQ - 24th June 2019 Morning Shift

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