Q. When analyzing a parallel circuit with BJTs, the base current is:
A.
Equal to the collector current
B.
Dependent on the emitter current
C.
Independent of the other branches
D.
Always zero
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Solution
In a parallel circuit with BJTs, the base current is independent of the other branches, as each BJT operates based on its own input.
Correct Answer:
C
— Independent of the other branches
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Q. When analyzing small-signal models in parallel circuits, what is typically assumed about the components?
A.
They are all linear
B.
They are all non-linear
C.
They have infinite resistance
D.
They have zero capacitance
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Solution
In small-signal models, it is typically assumed that the components are linear to simplify analysis.
Correct Answer:
A
— They are all linear
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Q. Which addressing scheme is commonly used in WANs for routing?
A.
MAC Addressing
B.
IPv4 Addressing
C.
IPv6 Addressing
D.
Both IPv4 and IPv6 Addressing
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Solution
Both IPv4 and IPv6 addressing schemes are commonly used in WANs for routing purposes, allowing for a large number of devices.
Correct Answer:
D
— Both IPv4 and IPv6 Addressing
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Q. Which ADO.NET class is primarily used to manipulate XML data in a DataSet?
A.
XmlDocument
B.
DataTable
C.
DataRelation
D.
XmlSchema
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Solution
The DataTable class is used to manipulate XML data within a DataSet, representing a single table of in-memory data.
Correct Answer:
B
— DataTable
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Q. Which ADO.NET component is used to execute SQL commands?
A.
DataAdapter
B.
DataReader
C.
Command
D.
Connection
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Solution
The Command object in ADO.NET is used to execute SQL commands against a database.
Correct Answer:
C
— Command
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Q. Which ADO.NET component is used to read XML data?
A.
DataReader
B.
DataSet
C.
DataAdapter
D.
XmlReader
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Solution
XmlReader is specifically designed to read XML data in a forward-only, read-only manner.
Correct Answer:
D
— XmlReader
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Q. Which architecture is commonly used in a client-server database environment?
A.
Two-tier architecture
B.
Three-tier architecture
C.
N-tier architecture
D.
Monolithic architecture
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Solution
Three-tier architecture is commonly used in a client-server database environment, separating the presentation, application logic, and data storage layers.
Correct Answer:
B
— Three-tier architecture
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Q. Which architecture is commonly used in a client-server database system?
A.
Two-tier architecture
B.
Three-tier architecture
C.
N-tier architecture
D.
All of the above
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Solution
All of the above architectures can be used in client-server database systems, depending on the complexity and requirements of the application.
Correct Answer:
D
— All of the above
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Q. Which architecture is commonly used in a DBMS?
A.
Two-Tier Architecture
B.
Three-Tier Architecture
C.
Client-Server Architecture
D.
All of the above
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Solution
All of the above architectures are commonly used in a DBMS to separate the user interface, application logic, and data storage.
Correct Answer:
D
— All of the above
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Q. Which architecture is commonly used in DBMS?
A.
Single-tier architecture
B.
Two-tier architecture
C.
Three-tier architecture
D.
All of the above
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Solution
All of the above architectures (single-tier, two-tier, and three-tier) are commonly used in Database Management Systems.
Correct Answer:
D
— All of the above
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Q. Which architecture is commonly used in modern DBMS?
A.
Single-tier architecture
B.
Two-tier architecture
C.
Three-tier architecture
D.
Four-tier architecture
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Solution
The three-tier architecture is commonly used in modern DBMS, separating the user interface, application logic, and database management.
Correct Answer:
C
— Three-tier architecture
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Q. Which bus is used to transfer data between the CPU and memory?
A.
Address bus
B.
Data bus
C.
Control bus
D.
Power bus
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Solution
The data bus is used to transfer data between the CPU and memory, allowing for communication between these components.
Correct Answer:
B
— Data bus
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Q. Which circuit is used to perform multiplication of binary numbers?
A.
Adder
B.
Multiplier
C.
Decoder
D.
Encoder
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Solution
A multiplier circuit is specifically designed to perform multiplication of binary numbers.
Correct Answer:
B
— Multiplier
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Q. Which circuit is used to perform subtraction in digital systems?
A.
Adder
B.
Subtractor
C.
Multiplier
D.
Divider
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Solution
A Subtractor is specifically designed to perform subtraction operations.
Correct Answer:
B
— Subtractor
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Q. Which command is used to configure EIGRP on a Cisco router?
A.
router eigrp [AS number]
B.
eigrp start
C.
enable eigrp
D.
set eigrp [AS number]
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Solution
The command 'router eigrp [AS number]' is used to enter EIGRP configuration mode on a Cisco router.
Correct Answer:
A
— router eigrp [AS number]
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Q. Which component is commonly used to implement logic gates in a PLD?
A.
Resistor
B.
Capacitor
C.
Transistor
D.
Inductor
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Solution
Transistors are used to implement logic gates in PLDs, allowing for the creation of complex logic functions.
Correct Answer:
C
— Transistor
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Q. Which component is commonly used to interface sensors with microcontrollers?
A.
Resistor
B.
Capacitor
C.
Operational Amplifier
D.
Transistor
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Solution
Operational amplifiers are often used to amplify sensor signals before they are processed by microcontrollers.
Correct Answer:
C
— Operational Amplifier
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Q. Which component is commonly used to set the gain in a non-inverting op-amp configuration?
A.
Resistor
B.
Capacitor
C.
Inductor
D.
Diode
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Solution
A resistor is commonly used to set the gain in a non-inverting op-amp configuration.
Correct Answer:
A
— Resistor
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Q. Which component is commonly used to smooth out the output of a rectifier?
A.
Resistor
B.
Inductor
C.
Capacitor
D.
Diode
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Solution
A capacitor is commonly used to smooth out the output of a rectifier.
Correct Answer:
C
— Capacitor
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Q. Which component is essential for setting the timing interval in a 555 timer?
A.
Inductor
B.
Resistor
C.
Diode
D.
Transistor
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Solution
Resistors and capacitors are essential for setting the timing interval in a 555 timer.
Correct Answer:
B
— Resistor
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Q. Which component is essential for the operation of a Schmitt trigger?
A.
Resistor
B.
Capacitor
C.
Diode
D.
Op-amp
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Solution
A Schmitt trigger typically uses an operational amplifier to provide hysteresis in the input-output relationship.
Correct Answer:
D
— Op-amp
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Q. Which component is responsible for temporary data storage in a microprocessor?
A.
ROM
B.
RAM
C.
Cache
D.
Registers
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Solution
RAM (Random Access Memory) is responsible for temporary data storage, allowing the processor to access data quickly during operation.
Correct Answer:
B
— RAM
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Q. Which component is used to control the flow of current in a circuit?
A.
Resistor
B.
Capacitor
C.
Inductor
D.
Transistor
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Solution
A transistor is used to control the flow of current in a circuit, acting as a switch or amplifier.
Correct Answer:
D
— Transistor
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Q. Which component is used to convert an analog signal to a digital signal?
A.
Amplifier
B.
ADC (Analog to Digital Converter)
C.
DAC (Digital to Analog Converter)
D.
Rectifier
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Solution
An ADC converts analog signals into digital signals for processing.
Correct Answer:
B
— ADC (Analog to Digital Converter)
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Q. Which component is used to perform arithmetic operations in digital circuits?
A.
ALU
B.
MUX
C.
Flip-flop
D.
Register
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Solution
An Arithmetic Logic Unit (ALU) is used to perform arithmetic operations in digital circuits.
Correct Answer:
A
— ALU
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Q. Which component is used to set the timing interval in a 555 timer circuit?
A.
Resistor
B.
Capacitor
C.
Inductor
D.
Diode
Show solution
Solution
The timing interval in a 555 timer circuit is set by a resistor and a capacitor.
Correct Answer:
B
— Capacitor
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Q. Which component of a DBMS is responsible for data storage?
A.
Query Processor
B.
Storage Manager
C.
Transaction Manager
D.
Data Dictionary
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Solution
The Storage Manager is the component of a DBMS responsible for data storage, managing how data is stored and retrieved.
Correct Answer:
B
— Storage Manager
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Q. Which component of a DBMS is responsible for managing data storage?
A.
Query Processor
B.
Storage Manager
C.
Transaction Manager
D.
Buffer Manager
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Solution
The Storage Manager is responsible for managing data storage in a DBMS.
Correct Answer:
B
— Storage Manager
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Q. Which concurrency control method is commonly used in data warehousing?
A.
Pessimistic locking
B.
Optimistic locking
C.
Two-phase locking
D.
Timestamp ordering
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Solution
Optimistic locking is often used in data warehousing environments where read operations are more frequent than write operations.
Correct Answer:
B
— Optimistic locking
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Q. Which concurrency control method uses timestamps to manage transactions?
A.
Two-Phase Locking
B.
Optimistic Concurrency Control
C.
Pessimistic Concurrency Control
D.
Timestamp Ordering
Show solution
Solution
Timestamp Ordering is a concurrency control method that uses timestamps to manage transactions.
Correct Answer:
D
— Timestamp Ordering
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