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Test your basic knowledge |
Digital Fundamentals
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
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.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB
Adjacency
CMOS Complementary Metal Oxide Semiconductor
Counter
CLB (Configurable Logic Block)
2. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Control Bus
Dual in - line package
Boolean addition
Counter
3. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Amplitude
Astable
BIOS
Ampere- hour(Ah) rating
4. In Boolean algebra - the OR operation
Boolean addition
Amplitude
Dividend
Average value
5. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop
Ampere- hour(Ah) rating
Architecture
BJT
Clock
6. An array of AND gates consisting of a matrix of programmable interconnection
Dual in - line package
AND array
Access time
Boolean algebra
7. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Band- pass filter
Dual in - line package
Kirchoff's Current Law(KCL)
Boolean expression
8. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Bidirectional shift Register
Closed circuit
BIOS
Binary coded decimal
9. A digital circuit device that converts coded information into another (familiar) or noncoded form
Byte
Decrement
Binary
Decoder
10. Data Communications equipment
Data bus
Charge- coupled device
DCE
Cache memory
11. A unit of the cross - sectional area of a wire.
Circular Mil (CM)
Bus
Bus arbitration
Bode Plot
12. A circuit that prevents loading of an input or output
Analog- to- digital (A/D) conversion
ALU
Buffer
Ammeter
13. A resettable protective device used for interrupting execessive current in an electric circuit
Assembly language
Data Selector
AHDL
Circuit Breaker
14. The current left after the total load current is subtracted from the total current into the circuit
Architecture
Circuit
Bleeder Current
Vx=(Vs * Rx) /RT
15. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits
AND array
CPLD
Average value
Binary
16. A transformer in which the primary and secondary are in a single winding
Clear
Autotransformer
Balanced Bridge
Data
17. The process or sequence of operations carried out to program a target device
Diode
Adjacency
Design flow
Code
18. A circuit with a complete current path
Assembly language
Cross - assembler
Closed circuit
Admittance
19. The mathematics of logic circuits
Boolean algebra
bed- of- nails
Bipolar
Address
20. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.
Adjacency
Assembler
Aliasing
D Flip-Flop
21. A bidirectional set of conductive paths on which data or instruction codes are transferred into a microprocessor or on which the result of an operation is sent out from the microprocessor
Aliasing
Alphanumeric
Data bus
Boolean algebra
22. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Band- stop filter
Clock
Atomic number
Baseline
23. A method of analog- to- digital conversion using a 1- bit quantization process
Adjacency
Dynamic Memory
Norton's Theorem
Delta Modulation
24. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Circuit Breaker
D Flip-Flop
DAT
CMOS Complementary Metal Oxide Semiconductor
25. A group of eight bits
Antifuse
Base
Capacitor
Byte
26. A programming language that uses English like words and has a one- to- one correspondence to machine language
Assembly language
AWG
Array
Bus arbitration
27. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
CPLD
Bus contention
Boolean multiplication
Concurrency
28. A program that converts English- like mnemonics into machine code
Data bus
Closed circuit
Assembler
Clear
29. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Decade Counter
Thevenin Equivalent Circuit
Circuit Breaker
Branch
30. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
Clock
Central processing unit
Battery
Attenuation
31. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor
Circuit Breaker
CMOS
Data
Adder
32. The process of converting an analog signal to digital form
Analog- to- digital (A/D) conversion
Duty cycle
Delta Modulation
Boolean expression
33. The action of a circuit in which it accepts current into its output from a load
Component
AWG
Current sinking
Branch Current
34. Having two stable states. Flip- flops and latches are bistable multivibrators.
Byte
Bistable
Capacitor
Boundary scan
35. The process that prevents two sources from using a bus at the same time
Capacity
Bus arbitration
Carry generation
Carry
36. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.
Controller
Control Bus
Amplitude
Cache memory
37. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
CMOS
Decade
Boundary scan
38. In addition - the number to which the addend is added
Augend
Data Sheet
Byte
DIMM
39. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.
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40. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Cache memory
Data Selector
DRAM
Bus arbitration
41. The beginning address of a segment of memory
Bit
Band- stop filter
Base address
Don't Care...
42. The graph of a filter's frequency response showing the change in the output voltage to input voltage ratio expressed in dB as a function of frequency for a constant input voltage
AWG
CLB (Configurable Logic Block)
Bode Plot
Branch Current
43. A combined coder and decoder
Analog- to- digital (A/D) conversion
Acceptor
Analog- to- digital converter(ADC)
Code
44. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Data Sheet
Autotransformer
Dual in - line package
D Flip-Flop
45. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Kirchoff's Voltage Law
Component
Bit time
TTL
46. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Dynamic Memory
Duty cycle
Kirchoff's Voltage Law
Norton's Theorem
47. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Byte
Cross - assembler
Associative law
Architecture
48. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Dynamic Memory
Cache memory
Debug
Bit time
49. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Addend
DMA
Dynamic Memory
Charge
50. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points
bed- of- nails
Boolean algebra
ABEL(Advance Boolean Expression Language)
Aliasing
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