BCA C2 Fall sem 25-26 Quiz 2

The 2’s complement of binary number 1010 is:

• A) 0101
  

• B) 0110
  

• C) 1110
  

• D) 0111

In floating-point representation, the number is represented by:

• A) Sign and magnitude

• B) Mantissa and exponent
  

• C) Quotient and remainder
  

• D) Dividend and divisor

Booth’s algorithm is used for:

• A) Binary addition
  

• B) Binary subtraction
  

• C) Binary multiplication of signed numbers
  

• D) Binary division

Booth’s algorithm reduces the number of:

• A) Additions and subtractions
  

• B) Memory accesses
  

• C) Bit shifts
  

• D) Multiplications

The initial value of Q₋₁ in Booth’s algorithm is:

• A) 0
  

• B) 1
  

• C) Same as MSB of Q
  

• D) Undefined

Which of the following is volatile memory?

• A) ROM
  

• B) Hard disk
  

• C) RAM
  

• D) Flash memory

The main function of ROM is to:

• A) Store data temporarily
  

• B) Store data permanently
  

• C) Increase processing speed
  

• D) Provide cache memory

Cache memory is placed between:

• A) CPU and Hard Disk
  

• B) CPU and Main Memory
  

• C) Main Memory and Secondary Storage
  

• D) ALU and Control Unit

The main purpose of cache memory is to:

• A) Increase storage capacity
  

• B) Reduce memory access time
  

• C) Decrease power consumption
  

• D) Store backup data

Access time of auxiliary memory is:

• A) Faster than cache
  

• B) Slower than cache and main memory
  

• C) Same as cache
  

• D) Faster than main memory only