Multiple Choice Questions (MCQs)
1 The instruction that is used to transfer the data from source operand to destination operand is- (A) Data copy/transfer instructions
- (B) Branch instruction
- (C) Arithmetic /logical instruction
- (D) String instructions
2 The instruction that is used for finding out the codes in case of code conversion problem is
- (A) XCHG
- (B) XLAT
- (C) XOR
- (D) JCXL
3 Which segment register is being used in the given instruction MOV CX, SS:(BX)
- (A) ES
- (B) Cs
- (C) Ss
- (D) None of the above
4 Which addressing mode is being used in the given instruction MOVAX, (1234H)
- (A) Base addressing mode
- (B) Immediate addressing mode
- (C) Register addressing mode
- (D) Direct addressing mode
5 The mnemonic that is placed before the arithmetic operation is performed is
- (A) AAA
- (B) AAS
- (C) AAM
- (D) AAP
6 In 8086 microprocessor the following has the highest priority among all type interrupts
- (A) NMI
- (B) DIV0
- (C) TYPE255
- (D) OVERFLOW
7 What is DEN
- (A) direct enable
- (B) Data entered
- (C) Data enable
- (D) Data encoding
8 The –———is used to connect more microprocessor
- (A) Peripheral device
- (B) Cascade
- (C) I/O devices
- (D) Control unit
9 INC destination increments the content of destination by——
- (A) 1
- (B) 2
- (C) 30
- (D) 41
10 The DS is called as
- (A) Data segment
- (B) Digital segment
- (C) Divide segment
- (D) Decode segment