3896: 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
3897: With reference to colonial period of Indian history, match List I (Person) with List II (Event) and select the correct answer using the codes given below the lists :
List I-------------List II
(Person)----------(Event)
A. MacDonald-----1. Doctrine of Lapse
B. Linlithgow------2. Communal Award
C. Dalhousie------3. August Offer
D. Chelmsford-----4. Dyarchy
Codes:
A B C D
(a) 3 2 1 4
(b) 3 2 4 1
(c) 2 3 1 4
(d) 2 3 4 1
3898: Which of the following political parties/organisations were established by Dr. B. R. Ambedkar?
1. Swaraj Party
2. Samaj Samata Sangh
3. All India Scheduled Castes Federation
4. The Independent Labour Party
(a) 1, 2 and 4
(b) 1,3 and 4
(c) 2, 3 and 4
(d) 1, 2 and 3
3899: When the rice is boiled, it expands because:
(a) The starch gelatinises and swells
(b) The starch gets polymerised
(c) The grains absorb moisture and swell
(d) Sugars break down in the grains
3900: Assertion (A) :
A man standing on a completely friction-less surface can propel himself by whistling.
Reason (R) :
If no external force acts on a system, its momentum cannot change.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true