Practice Test: Question Set - 04
1. The information available in a state table may be represented graphically in a
- (A) Simple
diagram
- (B) State
diagram
- (C) Complex
diagram
- (D) Data
flow diagram
2. Content of the program counter is added to the address part of the instruction in order to obtain the effective address is called.
- (A) Relative
address mode
- (B) Index
addressing mode
- (C) Register
mode
- (D) Implied
mode
3. An interface that provides I/O transfer of data directly to and from the memory unit and peripheral is termed as
- (A) DDA
- (B) Serial
interface
- (C) BR
- (D) DMA
4. The 2s compliment form (Use 6 bit word) of the number 1010 is
- (A) 111100
- (B) 110110
- (C) 110111
- (D) 1011
5. A register capable of shifting its binary information either to the right or the left is called a
- (A) Parallel
register
- (B) Serial
register
- (C) Shift
register
- (D) Storage
register
6. What is the content of Stack Pointer (SP)?
- (A) Address of
the current instruction
- (B) Address
of the next instruction
- (C) Address of
the top element of the stack
- (D) Size of the
stack
7. Which of the following interrupt is non-maskable
- (A) INTR
- (B) RST 7.5
- (C) RST 6.5
- (D) TRAP
8. Which of the following is a main memory?
- (A) Secondary
memory
- (B) Auxiliary
memory
- (C) Cache
memory
- (D) Virtual
memory
9. Which of the following are not a machine instructions?
- (A) MOV
- (B) ORG
- (C) END
- (D) Both (b)
& (c)
10. In Assembly language programming, minimum number of operands required for an instruction is/are
- (A) Zero
- (B) One
- (C) Two
- (D) Both (b)
& (c)
11. The maximum addressing capacity of a micro processor which uses 16 bit database & 32 bit address base is
- (A) 64 K
- (B) 4 GB
- (C) Both (a)
& (b)
- (D) None of
these
12. The memory unit that communicates directly with the CPU is called the
- (A) Main
memory
- (B) Secondary
memory
- (C) Shared
memory
- (D) Auxiliary
memory
13. The average time required to reach a storage location in memory and obtain its contents is called
- (A) Latency
time
- (B) Access
time
- (C) Turnaround
time
- (D) Response
time
14. A byte is a group of 16 bits.
- (A) True
- (B) False
15. A nibble is a group of 16 bits.
- (A) True
- (B) False
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