2571: Consider the following statements:
A digital signature is
1. an electronic record that identifies the certifying authority issuing it
2. used to serve as a proof of identity of an individual to access information or server on Internet
3. an electronic method of signing an electronic document and ensuring that the original content is unchanged
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
2572: The most controversial provision in the 42nd Constitution Amendment was:
(a) Supremacy of Parliament
(b) Enumeration of ten Fundamental Duties
(c) Term of Lok Sabha and Legislative Assemblies
(d) Primacy to the Directive Principles over the Fundamental Rights
2573: The earliest evidence of silver in India is found in the
(a) Harappan culture
(b) Chalcolithic cultures of Western India
(c) Vedic texts
(d) Silver punch-marked coins
2574: What happens when alcohol is taken in excess?
(a) It destroys the liver
(b) It produces inflammation of the stomach
(c) It causes the heart to become weak
(d) All of the above
2575: A and B can complete work together in 5 days. If a works at twice his speed and B at half of his speed this works can be finished in 4 days. How many days would it take for A alone to complete the job ?
(A) 18
(B) 10
(C) 12
(D) 15