Top 350+ Solved Computer Architecture MCQ Questions Answer
Q. The LEA mnemonic is used to
a. load the effective address of an instruction
b. load the values of operands onto an accumulator
c. declare the values as global constants
d. store the outcome of the operation at a memory location
Q. The instructions of IA-32 machines are of length up to
a. 4 bytes
b. 8 bytes
c. 16 bytes
d. 12 bytes
Q. The bit present in the op code, indicating which of the operands is the source is called as
a. src bit
b. indirection bit
c. direction bit
d. frm bit
Q. .data directive is used
a. to indicate the ending of the data section
b. to indicate the beginning of the data section
c. to declare all the source operands
d. to initialize the operands
Q. The instruction used to multiply operands yielding a double integer outcome is
a. mul
b. imul
c. dmul
d. emul
Q. SIMD stands for
a. single instruction multiple data
b. simple instruction multiple decoding
c. sequential instruction multiple decoding
d. system information mutable data
Q. In case of multimedia extension instructions, the pixels are encoded into a data item of
a. 16 bit
b. 32 bit
c. 24 bit
d. 8 bit
Q. The MMX (Multimedia Extension) operands are stored in
a. general purpose registers
b. banked registers
c. float point registers
d. graphic registers
Q. The division operation in IA-32 is a single operand instruction so it is assumed that
a. the divisor is stored in the eax register
b. the dividend is stored in the eac register
c. the divisor is stored in the accumulator
d. the dividend is stored in the accumulator
Q. Any condition that causes a processor to stall is called as
a. hazard
b. page fault
c. system error
d. none of the mentioned
Q. The stalling of the processor due to the unavailability of the instructions is called as
a. control hazard
b. structural hazard
c. input hazard
d. none of the mentioned
Q. The contention for the usage of a hardware device is called
a. structural hazard
b. stalk
c. deadlock
d. none of the mentioned