Q. What is denormalization?
A.
The process of reducing redundancy
B.
The process of increasing redundancy
C.
The process of normalizing data
D.
The process of creating indexes
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Solution
Denormalization is the process of increasing redundancy in a database to improve read performance by reducing the number of joins needed.
Correct Answer:
B
— The process of increasing redundancy
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Q. What is normalization in database design?
A.
The process of organizing data to reduce redundancy
B.
The process of creating a database
C.
The process of indexing data
D.
The process of backing up data
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Solution
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Correct Answer:
A
— The process of organizing data to reduce redundancy
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Q. What is normalization in the context of databases?
A.
The process of organizing data to reduce redundancy
B.
The process of backing up data
C.
The process of indexing data for faster retrieval
D.
The process of encrypting data
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Solution
Normalization is the process of organizing data to reduce redundancy.
Correct Answer:
A
— The process of organizing data to reduce redundancy
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Q. What is normalization?
A.
The process of organizing data
B.
The process of backing up data
C.
The process of indexing data
D.
The process of encrypting data
Show solution
Solution
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Correct Answer:
A
— The process of organizing data
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Q. What is pipelining in microprocessor design?
A.
A method to increase memory capacity
B.
A technique to execute multiple instructions simultaneously
C.
A way to reduce power consumption
D.
A process for cooling the CPU
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Solution
Pipelining is a technique used in microprocessor design to execute multiple instructions simultaneously by overlapping the execution stages.
Correct Answer:
B
— A technique to execute multiple instructions simultaneously
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Q. What is pipelining in microprocessors?
A.
A method to increase memory capacity
B.
A technique to improve instruction throughput
C.
A way to reduce power consumption
D.
A process for data encryption
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Solution
Pipelining is a technique used in microprocessors to improve instruction throughput by overlapping the execution of multiple instructions.
Correct Answer:
B
— A technique to improve instruction throughput
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Q. What is quantization in the context of digital signal processing?
A.
The process of sampling a signal
B.
The process of converting a continuous signal into a discrete signal
C.
The process of rounding off values to a finite set of levels
D.
The process of filtering a signal
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Solution
Quantization is the process of mapping a continuous range of values into a finite range of discrete values.
Correct Answer:
C
— The process of rounding off values to a finite set of levels
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Q. What is resonance in RLC circuits?
A.
The point where impedance is minimized
B.
The point where current is maximized
C.
The point where voltage is minimized
D.
The point where energy is stored
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Solution
Resonance in RLC circuits occurs when the current is maximized at a specific frequency.
Correct Answer:
B
— The point where current is maximized
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Q. What is the bandgap energy in semiconductor physics?
A.
The energy required to free an electron from the valence band
B.
The energy of the conduction band
C.
The energy of the valence band
D.
The energy lost during conduction
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Solution
The bandgap energy is the energy required to free an electron from the valence band to the conduction band in a semiconductor.
Correct Answer:
A
— The energy required to free an electron from the valence band
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Q. What is the bandgap energy in semiconductors?
A.
The energy required to free an electron
B.
The energy of the conduction band
C.
The energy of the valence band
D.
The energy lost during conduction
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Solution
The bandgap energy is the energy required to free an electron from the valence band to the conduction band in semiconductors.
Correct Answer:
A
— The energy required to free an electron
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Q. What is the bandgap energy of a typical silicon semiconductor?
A.
0.1 eV
B.
1.1 eV
C.
2.0 eV
D.
3.5 eV
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Solution
Silicon has a bandgap energy of approximately 1.1 eV, which is crucial for its semiconductor properties.
Correct Answer:
B
— 1.1 eV
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Q. What is the base of the hexadecimal number system?
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Solution
The base of the hexadecimal number system is 16.
Correct Answer:
D
— 16
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Q. What is the basic principle of operation of a transformer?
A.
Electromagnetic induction
B.
Capacitance
C.
Resistance
D.
Thermal conduction
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Solution
Transformers operate on the principle of electromagnetic induction.
Correct Answer:
A
— Electromagnetic induction
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Q. What is the behavior of an inductor at high frequencies?
A.
It acts as a short circuit
B.
It acts as an open circuit
C.
It has no effect
D.
It increases resistance
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Solution
At high frequencies, an inductor acts as an open circuit due to its reactance.
Correct Answer:
B
— It acts as an open circuit
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Q. What is the binary equivalent of the decimal number 10?
A.
1010
B.
1001
C.
1100
D.
1110
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Solution
The binary equivalent of the decimal number 10 is 1010.
Correct Answer:
A
— 1010
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Q. What is the binary representation of the decimal number 10?
A.
1010
B.
1001
C.
1100
D.
1110
Show solution
Solution
The binary representation of 10 is 1010.
Correct Answer:
A
— 1010
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Q. What is the binary representation of the decimal number 13?
A.
1101
B.
1011
C.
1110
D.
1001
Show solution
Solution
The decimal number 13 is represented as 1101 in binary.
Correct Answer:
A
— 1101
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Q. What is the characteristic equation of a first-order system?
A.
s + 1/τ = 0
B.
s^2 + 1/τ = 0
C.
s + τ = 0
D.
s^2 + τ = 0
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Solution
The characteristic equation of a first-order system is s + 1/τ = 0, where τ is the time constant.
Correct Answer:
A
— s + 1/τ = 0
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Q. What is the characteristic equation of a second-order system?
A.
s^2 + 2ζω_ns + ω_n^2 = 0
B.
s^2 + ω_n^2 = 0
C.
s^2 + 2ω_ns + ζ = 0
D.
s^2 + 2s + 1 = 0
Show solution
Solution
The characteristic equation of a second-order system is s^2 + 2ζω_ns + ω_n^2 = 0, where ζ is the damping ratio and ω_n is the natural frequency.
Correct Answer:
A
— s^2 + 2ζω_ns + ω_n^2 = 0
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Q. What is the characteristic of the small-signal model of a diode?
A.
Linear resistance
B.
Constant voltage drop
C.
Variable capacitance
D.
Current source
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Solution
In the small-signal model of a diode, it is represented as a linear resistance (dynamic resistance) around the operating point.
Correct Answer:
A
— Linear resistance
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Q. What is the characteristic table of a JK Flip-Flop when both J and K inputs are high?
A.
No change
B.
Set
C.
Reset
D.
Toggle
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Solution
When both J and K inputs are high, the JK Flip-Flop toggles its output state.
Correct Answer:
D
— Toggle
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Q. What is the decimal equivalent of the binary number 11101?
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Solution
The binary number 11101 is equivalent to 29 in decimal.
Correct Answer:
A
— 29
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Q. What is the decimal equivalent of the binary number 1111?
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Solution
1111 in binary equals 1*2^3 + 1*2^2 + 1*2^1 + 1*2^0 = 15.
Correct Answer:
A
— 15
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Q. What is the decimal equivalent of the binary number 111?
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Solution
The binary number 111 is equal to 7 in decimal.
Correct Answer:
C
— 7
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Q. What is the decimal equivalent of the hexadecimal number A3?
A.
163
B.
160
C.
165
D.
168
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Solution
A3 in hexadecimal is equal to 163 in decimal.
Correct Answer:
A
— 163
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Q. What is the decimal equivalent of the octal number 17?
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Solution
17 in octal equals 1*8^1 + 7*8^0 = 15.
Correct Answer:
A
— 15
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Q. What is the default administrative distance of EIGRP?
A.
90
B.
110
C.
120
D.
20
Show solution
Solution
The default administrative distance of EIGRP is 90, which makes it more preferred than OSPF (which has an administrative distance of 110) when both protocols are present.
Correct Answer:
A
— 90
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Q. What is the default bridge priority value in Spanning Tree Protocol?
A.
0
B.
32768
C.
65535
D.
4096
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Solution
The default bridge priority value in STP is 32768, which is used in the election of the Root Bridge.
Correct Answer:
B
— 32768
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Q. What is the default bridge priority value in STP?
A.
0
B.
32768
C.
65535
D.
4096
Show solution
Solution
The default bridge priority value in STP is 32768, which is used to determine the root bridge.
Correct Answer:
B
— 32768
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Q. What is the default isolation level in SQL Server 2000?
A.
Read Uncommitted
B.
Read Committed
C.
Repeatable Read
D.
Serializable
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Solution
The default isolation level in SQL Server 2000 is Read Committed, which prevents dirty reads.
Correct Answer:
B
— Read Committed
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