UGC NET June 2020 (Paper-I) 9th October Morning Shift

Total Questions: 50

31. In computers, a DVD-ROM is:

(i) Cache memory is 'volatile' memory.
(ii) Magnetic memory is 'volatile' memory.
(iii) Flash memory is 'volatile' memory.
(iv) RAM is 'volatile memory.
Choose the correct answer from the options given below:

Correct Answer: (C) an optical storage media and it can be written only once.

32. With regard to computer memory, which of the following statement(s) is/are TRUE?

Correct Answer: (C) (i) and (iv) only

33. The Recycle Bin is an area in Windows OS that contains files deleted from the:

(i) hard drive
(ii) Pen drive
(iii) CD-ROM
Choose the correct answer from the options given below:

Correct Answer: (A) (i), (iii), (iv), (ii)

34. Identify the correct order of the following computer memories on the basis of increasing memory access time (from low to high).

(i) Registers
(ii) Main Memory
(iii) Secondary Memory
(iv) Cache Memory
Choose the correct answer from the options given below:

Correct Answer: (B) (i), (iv), (ii), (iii)

35. Given below are 2 Statements:

Statement I: Minimum number of bits required to store any 3-digit decimal number is 10.
Statement II: The data in a digital computer is stored in terms of bits/ bytes where one Petabyte is equal to 2⁵⁰ bits.
In the light of the above statements, choose the correct answer from the options given below:

Correct Answer: (C) Statement I is correct but Statement II is incorrect

36. India has huge Thorium reserve, a potential source of nuclear energy. This thorium reserve is mainly confined in the:

Correct Answer: (C) coastal sands of Kerala sea

37. Identify the objectives specific to sustainable Development Goals among the following:

(i) Responsible consumption and production
(ii) Life on land
(iii) Improving maternal health
(iv) Ensuring environmental sustainability
(v) Reduced inequality
Choose the correct answer from the options given below:

Correct Answer: (A) (i), (ii) and (v)

38. Given below are 2 Statements, one is labelled as Assertion A and other is labelled as Reason R.

Assertion A: Emissions from diesel vehicles are relatively less harmful to human health in comparison to petrol vehicles.
Reason R: Emissions of hydrocarbons and carbon monoxide are inherently very low from diesel vehicles.
In the light of the above statements, choose the most appropriate answer from the options given below:

Correct Answer: (D) A is not correct but R is correct

39. Given below are 2 Statements, one is labelled as Assertion A and other is labelled as Reason R.

Assertion A: Solar ponds store solar energy in the form of heat.
Reason R: Solar ponds contain water with definite gradient of salt concentration. In the light of the above statements, choose the most appropriate answer from the options given below: Codes

Correct Answer: (A) Both A and R are correct and R is the correct explanation of A

40. Which of the following sectors contributed least to the global carbon dioxide emissions in the year 2014 as per IPCC report?

Correct Answer: (A) Transportation