Paper 1 · ICT
UGC NET December 2023 (14.12.2023) Shift-II
Match List I (Question) with List II (Answer) and choose the correct answer from the options given below.
List I
- How many ones are there in the binary representation of the decimal number 512
- If 1 kilobyte equals 2 to the power x bits, what is the value of x
- What hexadecimal value is obtained when the two hexadecimal digits A and B are added
- What is the denary (base 10) value of the binary number 00010100
List II
- 13
- 20
- 1
- 15
AI-c, II-d, III-a, IV-b
BI-b, II-a, III-d, IV-c
CI-a, II-c, III-b, IV-d
DI-c, II-a, III-d, IV-b ✓ Correct
Correct answer: (D) I-c, II-a, III-d, IV-b — The correct match gives one, 13, 15 and 20 in order, that is I-c, II-a, III-d, IV-b.
Explanation
★The correct match gives one, 13, 15 and 20 in order, that is I-c, II-a, III-d, IV-b.
★The decimal 512 is 2 to the power 9, written in binary as a 1 followed by nine zeros, so it has just one 1.
★One kilobyte is 1024 bytes, which is 8192 bits, and 8192 is 2 to the power 13, so x is 13.
★In hexadecimal A is 10 and B is 11, and their sum 21 is written as 15 in hex.
★The binary 00010100 has place values 16 and 4, which add to 20 in denary.
★So the answers pair as one, 13, 15 and 20 respectively.
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