In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct.

1. A team at the Department of Electrical Communication Engineering, Indian Institute of Science has developed a true random number generator.

P. The team said that this generator could improve data encryption.

Q. But the key needs to be unpredictable and, therefore, randomly generated to resist hacking.

R. Encrypted information can be decoded only by authorised users who have access to a cryptographic ‘key’.

S. Also, they claimed that it could provide improved security for sensitive digital data such as credit card details, passwords, and other personal information.

6. Cryptographic keys are typically generated in computers using pseudorandom number generators, which rely on mathematical formulae or pre-programmed tables to produce numbers that appear random but are not.

A PQRS Correct Answer Incorrect Answer
B RSPQ Correct Answer Incorrect Answer
C QRPS Correct Answer Incorrect Answer
D PSRQ Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer


The sentence that comes after 1 is P. It describes the function of the generator that has been developed. Statement S follows P, as it gives some more details on the working of the generator. Then comes statement R. It introduces the concept of the ‘key’, which gives access to the users. It is followed by Q. Finally, statement 6.

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