Practice Test: Question Set - 05
1. When a word is to be written in an associative memory, address has got to be given.
- (A) True
- (B) False
2. When two equal numbers are subtracted, the result would be ______and not________.
- (A) +ZERO, -ZERO
- (B) ZERO, ZERO
- (C) +ZERO, ONE
- (D) ONE, ZERO
3. A ________development system and a/an _______are essential tools for writing large assembly language programs.
- (A) Assembler,
Microprocessor
- (B) Microprocessor,
Microprocessor
- (C) Microprocessor,
assembler
- (D) None
of these
4. In an operation performed by the ALU, carry bit is set to 1 if the end carry C 8 is ________. It is cleared to 0 (zero) if the carry is _________.
- (A) Zero, one
- (B) One, zero
- (C) One, one
- (D) None of the
above
5. A successive A/D converter is
- (A) A high-speed
converter
- (B) A
low speed converter
- (C) A medium
speed converter
- (D) None of
these
6. When necessary, the results are transferred from the CPU to main memory by
- (A) I/O devices
- (B) CPU
- (C) Shift
registers
- (D) None
of these
7. A combinational logic circuit which sends data coming from a single source to two or more separate destinations is
- (A) Decoder
- (B) Encoder
- (C) Multiplexer
- (D) De-multiplexer
8. In which addressing mode the operand is given explicitly in the instruction
- (A) Absolute
- (B) Immediate
- (C) Indirect
- (D) Direct
9. A stack organized computer has
- (A) Three-address
Instruction
- (B) Two-address
Instruction
- (C) One-address
Instruction
- (D) Zero-address
Instruction
10. A Program Counter contains a number 825 and address part of the instruction contains the number 24. The effective address in the relative address mode, when an instruction is read from the memory is
- (A) 849
- (B) 850
- (C) 801
- (D) 802
11. A page fault
- (A) Occurs
when there is an error in a specific page
- (B) Occurs
when a program accesses a page of main memory
- (C) Occurs
when a program accesses a page not currently in main memory
- (D) Occurs
when a program accesses a page belonging to another program
12. The load instruction is mostly used to designate a transfer from memory to a processor register known as________.
- (A) Accumulator
- (B) Instruction
Register
- (C) Program
counter
- (D) Memory
address Register
13. The time interval between adjacent bits is called the________.
- (A) Word-time
- (B) Bit-time
- (C) Turnaround
time
- (D) Slice time
14. A k-bit field can specify any one of________.
- (A) 3k registers
- (B) 2k
registers
- (C) K2 registers
- (D) K3
registers
15. Logic gates with a set of input and outputs, is arrangement of________.
- (A) Computational
circuit
- (B) Logic
circuit
- (C) Design
circuits
- (D) Register
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