UGC NET Questions (Paper – 1)

Base sixteen uses sixteen distinct symbols, typically 0–9 and A–F. This system is widely used in computing to represent binary data compactly. The standard name for the base-16 system is hexadecimal. Therefore, the blank must be filled with the term hexadecimal.

Option A:
Option A correctly names the base-16 system as hexadecimal. This term is the accepted terminology in mathematics and computer science.

Option B:
Option B, octal, refers to the base-8 system, which uses digits 0–7, not sixteen symbols.

Option C:
Option C, decimal, is base 10 and uses digits 0–9 only.

Option D:
Option D, binary, denotes base 2 with digits 0 and 1 only.

The system that uses ten symbols 0 through 9 and base ten is known as the decimal system. It is the most commonly used system in everyday arithmetic. Each digit's value depends on powers of ten. Therefore, base ten with digits 0–9 is correctly named the decimal system.

Option A:
Option A correctly identifies the base-10 system as decimal, reflecting ten distinct digit symbols.

Option B:
Option B, binary, refers to base 2, which has only the digits 0 and 1.

Option C:
Option C, octal, denotes base 8, where only digits 0 to 7 are used.

Option D:
Option D, hexadecimal, is base 16 and uses 0–9 plus A–F.