Quiznetik
Digital Principles and System Design | Set 4
1. How many types of PLD is?
A. 2
B. 3
C. 4
D. 5
Correct : A. 2
2. PLA refers to
A. programmable loaded array
B. programmable array logic
C. programmable logic array
D. programmed array logic
Correct : C. programmable logic array
3. The inputs in the PLD is given through
A. nand gates
B. or gates
C. nor gates
D. and gates
Correct : D. and gates
4. Outputs of the AND gate in PLD is known as
A. input lines
B. output lines
C. strobe lines
D. control lines
Correct : B. output lines
5. PLA contains
A. and and or arrays
B. nand and or arrays
C. not and and arrays
D. nor and or arrays
Correct : A. and and or arrays
6. PLA is used to implement
A. a complex sequential circuit
B. a simple sequential circuit
C. a complex combinational circuit
D. a simple combinational circuit
Correct : C. a complex combinational circuit
7. A PLA is similar to a ROM in concept except that
A. it hasn’t capability to read only
B. it hasn’t capability to read or write operation
C. it doesn’t provide full decoding to the variables
D. it hasn’t capability to write only
Correct : C. it doesn’t provide full decoding to the variables
8. 6 PROGRAMMABLE ARRAY LOGIC
A. pla
B. pal
C. cpld
D. sld
Correct : B. pal
9. The complex programmable logic device contains several PLD blocks and
A. a language compiler
B. and/or arrays
C. global interconnection matrix
D. field-programmable switches
Correct : C. global interconnection matrix
10. Which type of device FPGA are?
A. sld
B. srom
C. eprom
D. pld
Correct : D. pld
11. The difference between a PAL & a PLA is
A. pals and plas are the same thing
B. the pla has a programmable or plane and a programmable and plane, while the pal only has a programmable and plane
C. the pal has a programmable or plane and a programmable and plane, while the pla only has a programmable and plane
D. the pal has more possible product terms than the pla
Correct : B. the pla has a programmable or plane and a programmable and plane, while the pal only has a programmable and plane
12. If a PAL has been programmed once
A. its logic capacity is lost
B. its outputs are only active high
C. its outputs are only active low
D. it cannot be reprogrammed
Correct : D. it cannot be reprogrammed
13. The FPGA refers to
A. first programmable gate array
B. field programmable gate array
C. first program gate array
D. field program gate array
Correct : B. field programmable gate array
14. The full form of VLSI is
A. very long single integration
B. very least scale integration
C. very large scale integration
D. very long scale integration
Correct : C. very large scale integration
15. In FPGA, vertical and horizontal directions are separated by
A. a line
B. a channel
C. a strobe
D. a flip-flop
Correct : B. a channel
16. Applications of PLAs are
A. registered pals
B. configurable pals
C. pal programming
D. all of the mentioned
Correct : D. all of the mentioned
17. PAL refers to
A. programmable array loaded
B. programmable logic array
C. programmable array logic
D. programmable and logic
Correct : C. programmable array logic
18. For programmable logic functions, which type of PLD should be used?
A. pla
B. pal
C. cpld
D. sld
Correct : B. pal
19. How many two-input AND and OR gates are required to realize Y = CD+EF+G?
A. 2, 2
B. 2, 3
C. 3, 3
D. 3, 2
Correct : A. 2, 2
20. The flag bits in an ALU is defined as
A. the total number of registers
B. the status bit conditions
C. the total number of control lines
D. all of the mentioned
Correct : B. the status bit conditions
21. The logic circuits whose outputs at any instant of time depends only on the present input but also on the past outputs are called
A. combinational circuits
B. sequential circuits
C. latches
D. flip-flops
Correct : B. sequential circuits
22. The problem where process concurrency becomes an issue is called as
A. philosophers problem
B. bakery problem
C. bankers problem
D. reader-writer problem
Correct : D. reader-writer problem