Q. What is the primary purpose of a comparator circuit using an op-amp?
A.
To amplify AC signals
B.
To compare two voltages and output a digital signal
C.
To filter out noise
D.
To provide feedback in a control system
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Solution
A comparator circuit compares two input voltages and outputs a digital signal indicating which input is higher.
Correct Answer:
B
— To compare two voltages and output a digital signal
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Q. What is the primary purpose of a data warehouse?
A.
To store operational data
B.
To support business intelligence activities
C.
To manage transaction processing
D.
To perform real-time analytics
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Solution
A data warehouse is designed to support business intelligence activities by consolidating data from various sources for analysis.
Correct Answer:
B
— To support business intelligence activities
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Q. What is the primary purpose of a differential amplifier?
A.
To amplify a single input signal
B.
To amplify the difference between two input signals
C.
To filter noise from a signal
D.
To provide isolation between circuits
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Solution
A differential amplifier amplifies the difference between two input signals, making it useful for applications like instrumentation.
Correct Answer:
B
— To amplify the difference between two input signals
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Q. What is the primary purpose of a digital filter?
A.
To amplify signals
B.
To remove unwanted frequencies
C.
To convert analog signals to digital
D.
To sample signals
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Solution
Digital filters are designed to remove unwanted frequencies from a signal, allowing only the desired frequencies to pass through.
Correct Answer:
B
— To remove unwanted frequencies
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Q. What is the primary purpose of a firewall in a network?
A.
To increase bandwidth
B.
To filter incoming and outgoing traffic
C.
To provide wireless connectivity
D.
To manage IP addresses
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Solution
A firewall is used to filter incoming and outgoing traffic based on predetermined security rules.
Correct Answer:
B
— To filter incoming and outgoing traffic
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Q. What is the primary purpose of a firewall in network security?
A.
To increase network speed
B.
To filter incoming and outgoing traffic
C.
To manage IP addresses
D.
To provide wireless connectivity
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Solution
A firewall is used to filter incoming and outgoing traffic based on predetermined security rules.
Correct Answer:
B
— To filter incoming and outgoing traffic
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Q. What is the primary purpose of a flip-flop in digital design?
A.
To perform arithmetic operations
B.
To store binary data
C.
To generate clock signals
D.
To convert analog signals to digital
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Solution
A flip-flop is a basic memory element in digital circuits that can store one bit of binary data.
Correct Answer:
B
— To store binary data
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Q. What is the primary purpose of a foreign key in a database?
A.
To uniquely identify a record
B.
To create a relationship between tables
C.
To enforce data types
D.
To index a table
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Solution
The primary purpose of a foreign key is to create a relationship between tables.
Correct Answer:
B
— To create a relationship between tables
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Q. What is the primary purpose of a memory cell in semiconductor memory?
A.
To amplify signals
B.
To store binary data
C.
To convert signals
D.
To regulate voltage
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Solution
The primary purpose of a memory cell in semiconductor memory is to store binary data, which is essential for data retention.
Correct Answer:
B
— To store binary data
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Q. What is the primary purpose of a series voltage regulator?
A.
To increase voltage
B.
To decrease voltage
C.
To maintain a constant output voltage
D.
To convert AC to DC
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Solution
A series voltage regulator is designed to maintain a constant output voltage despite variations in input voltage or load conditions.
Correct Answer:
C
— To maintain a constant output voltage
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Q. What is the primary purpose of ADO.NET in relation to databases?
A.
To provide a way to store XML data
B.
To connect and interact with databases
C.
To manage database transactions
D.
To perform data normalization
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Solution
ADO.NET is primarily used to connect and interact with databases, allowing for data retrieval and manipulation.
Correct Answer:
B
— To connect and interact with databases
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Q. What is the primary purpose of ADO.NET in relation to XML?
A.
To provide a way to store XML data in a database
B.
To enable data access and manipulation in .NET applications
C.
To convert XML data into SQL queries
D.
To generate XML schemas from database tables
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Solution
ADO.NET is primarily used for data access and manipulation in .NET applications, allowing developers to work with data from various sources, including XML.
Correct Answer:
B
— To enable data access and manipulation in .NET applications
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Q. What is the primary purpose of an operational amplifier (op-amp)?
A.
To convert AC to DC
B.
To amplify voltage signals
C.
To rectify current
D.
To switch electronic signals
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Solution
Operational amplifiers are designed to amplify voltage signals, making them fundamental components in analog circuits.
Correct Answer:
B
— To amplify voltage signals
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Q. What is the primary purpose of error control in wireless communication?
A.
To increase bandwidth
B.
To ensure data integrity
C.
To reduce latency
D.
To manage network traffic
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Solution
The primary purpose of error control in wireless communication is to ensure data integrity by detecting and correcting errors that may occur during transmission.
Correct Answer:
B
— To ensure data integrity
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Q. What is the primary purpose of indexing in a database?
A.
To speed up data retrieval
B.
To ensure data integrity
C.
To enforce constraints
D.
To store data
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Solution
Indexing is primarily used to speed up the retrieval of rows from a database table.
Correct Answer:
A
— To speed up data retrieval
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Q. What is the primary purpose of indexing in Object-Oriented Databases?
A.
To enforce data integrity
B.
To speed up data retrieval
C.
To normalize data
D.
To create relationships
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Solution
Indexing is primarily used to speed up data retrieval operations in databases.
Correct Answer:
B
— To speed up data retrieval
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Q. What is the primary purpose of IP routing?
A.
To establish a connection between two devices
B.
To determine the best path for data packets
C.
To encrypt data during transmission
D.
To manage network traffic
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Solution
IP routing is primarily used to determine the best path for data packets to travel across networks.
Correct Answer:
B
— To determine the best path for data packets
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Q. What is the primary purpose of IPv6?
A.
To provide a larger address space than IPv4
B.
To improve the speed of data transmission
C.
To enhance security features
D.
To simplify network configuration
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Solution
IPv6 was developed to address the limitations of IPv4, particularly the exhaustion of available IP addresses, by providing a vastly larger address space.
Correct Answer:
A
— To provide a larger address space than IPv4
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Q. What is the primary purpose of IPv6?
A.
To provide a larger address space than IPv4
B.
To improve the speed of data transmission
C.
To enhance security features
D.
To simplify network configuration
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Solution
IPv6 was developed to address the limitations of IPv4, particularly the exhaustion of available IP addresses, by providing a vastly larger address space.
Correct Answer:
A
— To provide a larger address space than IPv4
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Q. What is the primary purpose of IPv6?
A.
To provide a larger address space than IPv4
B.
To improve the speed of data transmission
C.
To enhance security features
D.
To simplify network configuration
Show solution
Solution
IPv6 was developed to address the limitations of IPv4, particularly the exhaustion of available IP addresses, by providing a vastly larger address space.
Correct Answer:
A
— To provide a larger address space than IPv4
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Q. What is the primary purpose of Java Server Pages (JSP)?
A.
To create dynamic web content
B.
To manage database connections
C.
To handle server-side scripting
D.
To compile Java code
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Solution
The primary purpose of Java Server Pages (JSP) is to create dynamic web content by embedding Java code in HTML.
Correct Answer:
A
— To create dynamic web content
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Q. What is the primary purpose of Network Address Translation (NAT)?
A.
To provide a unique IP address to every device on the internet
B.
To allow multiple devices on a local network to share a single public IP address
C.
To encrypt data transmitted over the network
D.
To increase the speed of data transmission
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Solution
NAT allows multiple devices on a local network to share a single public IP address, which helps conserve the limited number of available public IP addresses.
Correct Answer:
B
— To allow multiple devices on a local network to share a single public IP address
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Q. What is the primary purpose of normalization in a database?
A.
To increase data redundancy
B.
To eliminate data anomalies
C.
To improve query performance
D.
To simplify database design
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Solution
Normalization is used to eliminate data anomalies and ensure data integrity by organizing data into related tables.
Correct Answer:
B
— To eliminate data anomalies
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Q. What is the primary purpose of normalization in a relational database?
A.
To increase data redundancy
B.
To eliminate data anomalies
C.
To improve query performance
D.
To simplify database design
Show solution
Solution
Normalization is primarily used to eliminate data anomalies and ensure data integrity by organizing data into related tables.
Correct Answer:
B
— To eliminate data anomalies
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Q. What is the primary purpose of normalization in database design?
A.
To increase data redundancy
B.
To eliminate data anomalies
C.
To improve query performance
D.
To simplify database architecture
Show solution
Solution
Normalization is used to eliminate data anomalies and ensure data integrity by organizing data into related tables.
Correct Answer:
B
— To eliminate data anomalies
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Q. What is the primary purpose of simulation in HDL design?
A.
To create physical hardware
B.
To verify design functionality
C.
To optimize power consumption
D.
To reduce code size
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Solution
Simulation is primarily used to verify the functionality of the design before it is implemented in hardware.
Correct Answer:
B
— To verify design functionality
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Q. What is the primary purpose of the Spanning Tree Protocol (STP)?
A.
To prevent loops in a network
B.
To increase bandwidth
C.
To provide encryption
D.
To manage IP addresses
Show solution
Solution
STP is designed to prevent loops in a network by creating a loop-free logical topology.
Correct Answer:
A
— To prevent loops in a network
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Q. What is the primary purpose of the TCP/IP model?
A.
To provide a framework for network communication
B.
To define hardware specifications
C.
To manage network security
D.
To establish physical connections
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Solution
The TCP/IP model provides a framework for network communication, allowing different devices to communicate over the internet.
Correct Answer:
A
— To provide a framework for network communication
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Q. What is the primary purpose of using a voltage divider in a series-parallel circuit?
A.
To increase voltage
B.
To decrease voltage
C.
To isolate components
D.
To amplify signals
Show solution
Solution
A voltage divider is used to decrease voltage to a desired level in a circuit.
Correct Answer:
B
— To decrease voltage
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Q. What is the primary reason for using BiCMOS technology?
A.
Low cost
B.
High speed and low power
C.
Simplicity
D.
High power consumption
Show solution
Solution
BiCMOS combines the advantages of both bipolar and CMOS technologies, offering high speed and low power consumption.
Correct Answer:
B
— High speed and low power
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