Q. Which configuration of a BJT is commonly used for voltage amplification?
-
A.
Common emitter
-
B.
Common base
-
C.
Common collector
-
D.
Emitter follower
Solution
The common emitter configuration is widely used for voltage amplification due to its high gain characteristics.
Correct Answer:
A
— Common emitter
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Q. Which configuration of a BJT provides the highest voltage gain?
-
A.
Common emitter
-
B.
Common base
-
C.
Common collector
-
D.
Emitter follower
Solution
The common emitter configuration provides the highest voltage gain among the BJT configurations.
Correct Answer:
A
— Common emitter
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Q. Which configuration of an op-amp can be used to integrate an input signal over time?
-
A.
Inverting amplifier
-
B.
Non-inverting amplifier
-
C.
Integrator
-
D.
Differential amplifier
Solution
An integrator configuration of an op-amp is used to integrate an input signal over time, producing a ramp output.
Correct Answer:
C
— Integrator
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Q. Which configuration of an OP-AMP is commonly used in series-parallel circuits for signal amplification?
-
A.
Inverting configuration
-
B.
Non-inverting configuration
-
C.
Differential configuration
-
D.
Voltage follower configuration
Solution
The non-inverting configuration is commonly used for signal amplification in series-parallel circuits.
Correct Answer:
B
— Non-inverting configuration
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Q. Which configuration of an op-amp is used to create a precision rectifier?
-
A.
Inverting amplifier
-
B.
Non-inverting amplifier
-
C.
Differential amplifier
-
D.
Voltage follower
Solution
An inverting amplifier configuration can be used to create a precision rectifier, allowing for accurate rectification of small signals.
Correct Answer:
A
— Inverting amplifier
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Q. Which configuration of an op-amp is used to perform integration of an input signal?
-
A.
Inverting amplifier
-
B.
Non-inverting amplifier
-
C.
Differentiator
-
D.
Integrator
Solution
An integrator configuration of an op-amp is specifically designed to perform the mathematical operation of integration on the input signal.
Correct Answer:
D
— Integrator
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Q. Which configuration of an operational amplifier provides the highest input impedance?
-
A.
Inverting
-
B.
Non-inverting
-
C.
Voltage follower
-
D.
Differential
Solution
The voltage follower configuration provides the highest input impedance.
Correct Answer:
C
— Voltage follower
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Q. Which configuration of the 555 timer is used for pulse width modulation (PWM)?
-
A.
Astable mode
-
B.
Monostable mode
-
C.
Bistable mode
-
D.
None of the above
Solution
Astable mode of the 555 timer is commonly used for generating pulse width modulation (PWM) signals.
Correct Answer:
A
— Astable mode
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Q. Which device is commonly used to convert AC to DC?
-
A.
Transistor
-
B.
Diode
-
C.
Capacitor
-
D.
Inductor
Solution
A diode is commonly used to convert Alternating Current (AC) to Direct Current (DC) in rectification.
Correct Answer:
B
— Diode
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Q. Which device is primarily responsible for routing traffic between VLANs?
-
A.
Switch
-
B.
Router
-
C.
Hub
-
D.
Bridge
Solution
A router is primarily responsible for routing traffic between VLANs, enabling communication between different network segments.
Correct Answer:
B
— Router
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Q. Which device is typically used to perform Inter-VLAN routing?
-
A.
Switch
-
B.
Router
-
C.
Hub
-
D.
Bridge
Solution
A router is typically used to perform Inter-VLAN routing, enabling communication between different VLANs.
Correct Answer:
B
— Router
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Q. Which device is used to connect multiple computers in a network?
-
A.
Router
-
B.
Switch
-
C.
Modem
-
D.
Firewall
Solution
A switch is used to connect multiple computers within a local area network (LAN) and manage data traffic between them.
Correct Answer:
B
— Switch
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Q. Which file system is commonly used for USB flash drives?
-
A.
NTFS
-
B.
FAT32
-
C.
ext4
-
D.
HFS+
Solution
FAT32 (File Allocation Table 32) is commonly used for USB flash drives due to its compatibility with various operating systems.
Correct Answer:
B
— FAT32
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Q. Which flip-flop can be used to create a shift register?
-
A.
D Flip-Flop
-
B.
T Flip-Flop
-
C.
JK Flip-Flop
-
D.
SR Flip-Flop
Solution
D Flip-Flops are commonly used to create shift registers, as they can store and shift data serially.
Correct Answer:
A
— D Flip-Flop
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Q. Which flip-flop can be used to divide the frequency of a clock signal by 2?
-
A.
D Flip-Flop
-
B.
T Flip-Flop
-
C.
JK Flip-Flop
-
D.
SR Flip-Flop
Solution
The T Flip-Flop toggles its output on each clock pulse, effectively dividing the input frequency by 2.
Correct Answer:
B
— T Flip-Flop
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Q. Which flip-flop is commonly used for frequency division?
-
A.
D Flip-Flop
-
B.
T Flip-Flop
-
C.
JK Flip-Flop
-
D.
SR Flip-Flop
Solution
The T Flip-Flop is commonly used for frequency division because it toggles its output on each clock pulse.
Correct Answer:
B
— T Flip-Flop
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Q. Which flip-flop is known for its ability to set and reset based on two inputs?
-
A.
D Flip-Flop
-
B.
T Flip-Flop
-
C.
JK Flip-Flop
-
D.
SR Flip-Flop
Solution
The SR Flip-Flop has two inputs, Set (S) and Reset (R), allowing it to control the output state directly.
Correct Answer:
D
— SR Flip-Flop
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Q. Which flip-flop is known for its ability to store a single bit of data?
-
A.
SR Flip-Flop
-
B.
JK Flip-Flop
-
C.
D Flip-Flop
-
D.
T Flip-Flop
Solution
The D Flip-Flop is designed to store a single bit of data, capturing the input value on the clock edge.
Correct Answer:
C
— D Flip-Flop
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Q. Which flip-flop is known for its ability to toggle based on a single input?
-
A.
D Flip-Flop
-
B.
T Flip-Flop
-
C.
JK Flip-Flop
-
D.
SR Flip-Flop
Solution
The T Flip-Flop is known for its ability to toggle its output state based on a single input signal.
Correct Answer:
B
— T Flip-Flop
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Q. Which frequency band is commonly used by 802.11n Wi-Fi?
-
A.
2.4 GHz
-
B.
5 GHz
-
C.
Both 2.4 GHz and 5 GHz
-
D.
1.2 GHz
Solution
802.11n can operate on both the 2.4 GHz and 5 GHz frequency bands, providing flexibility in network design.
Correct Answer:
C
— Both 2.4 GHz and 5 GHz
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Q. Which frequency bands are commonly used by Wi-Fi networks?
-
A.
2.4 GHz and 5 GHz
-
B.
1.2 GHz and 3.6 GHz
-
C.
900 MHz and 1.8 GHz
-
D.
5 GHz and 10 GHz
Solution
Wi-Fi networks commonly operate on the 2.4 GHz and 5 GHz frequency bands, providing different ranges and speeds.
Correct Answer:
A
— 2.4 GHz and 5 GHz
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Q. Which gate can be used to create a parity checker?
-
A.
AND
-
B.
OR
-
C.
XOR
-
D.
NOT
Solution
An XOR gate can be used to create a parity checker.
Correct Answer:
C
— XOR
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Q. Which gate is equivalent to an OR gate followed by a NOT gate?
-
A.
AND
-
B.
NAND
-
C.
NOR
-
D.
XOR
Solution
A NOR gate is equivalent to an OR gate followed by a NOT gate.
Correct Answer:
C
— NOR
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Q. Which gate is known as an inverter?
-
A.
AND
-
B.
OR
-
C.
NOT
-
D.
XOR
Solution
The NOT gate is known as an inverter because it inverts the input signal.
Correct Answer:
C
— NOT
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Q. Which gate is the opposite of an AND gate?
-
A.
OR
-
B.
NAND
-
C.
NOR
-
D.
XOR
Solution
The NAND gate is the opposite of an AND gate, as it outputs 0 only when both inputs are 1.
Correct Answer:
B
— NAND
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Q. Which gate produces a true output only when both inputs are different?
-
A.
AND
-
B.
OR
-
C.
XOR
-
D.
NAND
Solution
An XOR gate outputs true only when the inputs are different.
Correct Answer:
C
— XOR
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Q. Which IEEE standard defines the VLAN tagging protocol?
-
A.
802.1Q
-
B.
802.3
-
C.
802.11
-
D.
802.15
Solution
IEEE 802.1Q defines the VLAN tagging protocol, which allows for the identification of VLANs in Ethernet frames.
Correct Answer:
A
— 802.1Q
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Q. Which indexing method allows for faster retrieval of data?
-
A.
Sequential Indexing
-
B.
Hash Indexing
-
C.
B-Tree Indexing
-
D.
Bitmap Indexing
Solution
B-Tree Indexing allows for faster retrieval of data due to its balanced tree structure.
Correct Answer:
C
— B-Tree Indexing
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Q. Which instruction is used to clear a specific bit in the 8051 microcontroller?
-
A.
CLR
-
B.
CPL
-
C.
ANL
-
D.
ORL
Solution
The CLR instruction is used to clear a specific bit in the 8051 microcontroller.
Correct Answer:
A
— CLR
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Q. Which instruction is used to clear a specific bit in the 8051?
-
A.
CLR
-
B.
CPL
-
C.
SETB
-
D.
ANL
Solution
The 'CLR' instruction is used to clear a specific bit in the 8051 microcontroller.
Correct Answer:
A
— CLR
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