Q. In which logic family would you expect to find the lowest propagation delay?
A.
TTL
B.
CMOS
C.
ECL
D.
BiCMOS
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Solution
ECL has the lowest propagation delay among common logic families due to its design that allows for faster switching.
Correct Answer:
C
— ECL
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Q. In which logic family would you find the term 'fast' commonly associated?
A.
TTL
B.
CMOS
C.
ECL
D.
BiCMOS
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Solution
The term 'fast' is often associated with ECL, which is designed for high-speed applications.
Correct Answer:
C
— ECL
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Q. In which logic family would you typically find a Schmitt trigger?
A.
TTL
B.
CMOS
C.
ECL
D.
BiCMOS
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Solution
Schmitt triggers are commonly found in CMOS logic families due to their ability to provide clean transitions.
Correct Answer:
B
— CMOS
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Q. In which type of integrated circuit are both analog and digital functions combined?
A.
Digital IC
B.
Analog IC
C.
Mixed-signal IC
D.
Power IC
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Solution
Mixed-signal ICs combine both analog and digital functions, allowing for versatile applications.
Correct Answer:
C
— Mixed-signal IC
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Q. What algorithm does the Spanning Tree Protocol use to determine the best path?
A.
Dijkstra's Algorithm
B.
Bellman-Ford Algorithm
C.
Spanning Tree Algorithm
D.
Flooding Algorithm
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Solution
STP uses the Spanning Tree Algorithm to determine the best path and eliminate loops.
Correct Answer:
C
— Spanning Tree Algorithm
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Q. What are the two types of BJTs?
A.
NPN and PNP
B.
N-channel and P-channel
C.
N-type and P-type
D.
Common-emitter and Common-collector
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Solution
The two types of BJTs are NPN and PNP, which refer to the arrangement of the semiconductor materials.
Correct Answer:
A
— NPN and PNP
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Q. What does 'concurrency control' refer to in Object-Oriented Databases?
A.
Managing simultaneous operations without conflicts
B.
Creating new object classes
C.
Normalizing data structures
D.
Defining relationships between objects
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Solution
Concurrency control refers to managing simultaneous operations to ensure data integrity and prevent conflicts.
Correct Answer:
A
— Managing simultaneous operations without conflicts
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Q. What does 'in-system programming' mean in the context of PLDs?
A.
Programming the device while it is installed in the circuit
B.
Programming the device before installation
C.
Updating the software of the device
D.
Testing the device functionality
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Solution
In-system programming refers to programming the PLD while it is installed in the circuit, allowing for easier updates.
Correct Answer:
A
— Programming the device while it is installed in the circuit
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Q. What does 'polymorphism' in Object-Oriented Databases refer to?
A.
The ability to process different data types in a uniform way
B.
The use of multiple databases
C.
The normalization of data
D.
The creation of multiple tables
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Solution
Polymorphism refers to the ability to process different data types in a uniform way, allowing for flexibility in data handling.
Correct Answer:
A
— The ability to process different data types in a uniform way
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Q. What does 'SSD' stand for in computer storage?
A.
Solid State Drive
B.
Super Speed Drive
C.
Standard Storage Device
D.
Solid Storage Disk
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Solution
SSD stands for Solid State Drive, which is a type of storage device that uses flash memory to store data.
Correct Answer:
A
— Solid State Drive
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Q. What does a crow's foot notation indicate in an ER diagram?
A.
One-to-one relationship
B.
One-to-many relationship
C.
Many-to-many relationship
D.
No relationship
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Solution
A crow's foot notation indicates a one-to-many relationship in an ER diagram.
Correct Answer:
B
— One-to-many relationship
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Q. What does a foreign key do in a relational database?
A.
Links two tables together
B.
Defines a primary key
C.
Indexes a table
D.
Stores unique values
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Solution
A foreign key in a relational database links two tables together by referencing the primary key of another table.
Correct Answer:
A
— Links two tables together
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Q. What does a normally open (NO) switch do?
A.
Allows current to flow when closed
B.
Allows current to flow when open
C.
Always allows current to flow
D.
Never allows current to flow
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Solution
A normally open (NO) switch allows current to flow only when it is closed.
Correct Answer:
A
— Allows current to flow when closed
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Q. What does a primary key do in an ER model?
A.
Links two entities
B.
Identifies a unique record
C.
Defines a relationship type
D.
Stores multiple values
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Solution
A primary key uniquely identifies a record in a database table.
Correct Answer:
B
— Identifies a unique record
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Q. What does a primary key in an ER model signify?
A.
A unique identifier for an entity
B.
A foreign key reference
C.
An attribute that can be null
D.
A relationship type
Show solution
Solution
A primary key signifies a unique identifier for an entity in an ER model.
Correct Answer:
A
— A unique identifier for an entity
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Q. What does a router use to make forwarding decisions?
A.
MAC address table
B.
Routing table
C.
ARP cache
D.
DNS records
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Solution
A router uses a routing table to make forwarding decisions based on the destination IP address of packets.
Correct Answer:
B
— Routing table
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Q. What does a router use to make routing decisions?
A.
MAC addresses
B.
IP addresses
C.
Port numbers
D.
DNS records
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Solution
Routers use IP addresses to make routing decisions and determine the best path for data packets.
Correct Answer:
B
— IP addresses
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Q. What does a solid line represent in an ER diagram?
A.
A weak relationship
B.
A strong relationship
C.
An attribute
D.
An entity
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Solution
A solid line in an ER diagram represents a strong relationship between entities.
Correct Answer:
B
— A strong relationship
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Q. What does a subnet mask do?
A.
Defines the size of the network
B.
Encrypts data packets
C.
Assigns IP addresses
D.
Routes data packets
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Solution
A subnet mask defines the size of the network and determines which portion of an IP address refers to the network and which part refers to the host.
Correct Answer:
A
— Defines the size of the network
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Q. What does ACID stand for in the context of database transactions?
A.
Atomicity, Consistency, Isolation, Durability
B.
Atomicity, Consistency, Integrity, Durability
C.
Atomicity, Concurrency, Isolation, Durability
D.
Atomicity, Consistency, Isolation, Data
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Solution
ACID stands for Atomicity, Consistency, Isolation, and Durability, which are the properties that guarantee reliable processing of database transactions.
Correct Answer:
A
— Atomicity, Consistency, Isolation, Durability
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Q. What does ADO.NET primarily use to interact with XML data?
A.
DataSet
B.
DataReader
C.
DataAdapter
D.
Command
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Solution
ADO.NET uses DataSet to work with XML data, allowing for in-memory representation and manipulation.
Correct Answer:
A
— DataSet
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Q. What does ALU stand for in microprocessor terminology?
A.
Arithmetic Logic Unit
B.
Analog Logic Unit
C.
Arithmetic Linear Unit
D.
Analog Linear Unit
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Solution
ALU stands for Arithmetic Logic Unit, which is responsible for performing arithmetic and logical operations in a microprocessor.
Correct Answer:
A
— Arithmetic Logic Unit
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Q. What does an entity represent in an ER model?
A.
A relationship between two tables
B.
A real-world object or concept
C.
A specific attribute of a table
D.
A constraint on data
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Solution
An entity represents a real-world object or concept in an ER model.
Correct Answer:
B
— A real-world object or concept
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Q. What does an Entity-Relationship (ER) model primarily represent?
A.
The physical storage of data
B.
The relationships between data entities
C.
The SQL queries for data retrieval
D.
The performance metrics of a database
Show solution
Solution
An Entity-Relationship (ER) model primarily represents the relationships between data entities.
Correct Answer:
B
— The relationships between data entities
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Q. What does CIDR stand for in the context of subnetting?
A.
Classless Inter-Domain Routing
B.
Classful Inter-Domain Routing
C.
Common Inter-Domain Routing
D.
Centralized Inter-Domain Routing
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Solution
CIDR stands for Classless Inter-Domain Routing, which allows for more flexible allocation of IP addresses than traditional classful addressing.
Correct Answer:
A
— Classless Inter-Domain Routing
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Q. What does CMOS stand for in integrated circuit technology?
A.
Complementary Metal-Oxide-Semiconductor
B.
Common Metal-Oxide-Semiconductor
C.
Complex Metal-Oxide-Semiconductor
D.
Composite Metal-Oxide-Semiconductor
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Solution
CMOS stands for Complementary Metal-Oxide-Semiconductor, a technology used for constructing integrated circuits.
Correct Answer:
A
— Complementary Metal-Oxide-Semiconductor
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Q. What does concurrency control in a DBMS ensure?
A.
Data redundancy
B.
Data integrity during simultaneous access
C.
Faster data retrieval
D.
Data backup
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Solution
Concurrency control ensures data integrity when multiple users access the database simultaneously.
Correct Answer:
B
— Data integrity during simultaneous access
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Q. What does ECL stand for in logic families?
A.
Emitter-Coupled Logic
B.
Emitter-Common Logic
C.
Enhanced-Coupled Logic
D.
Electro-Coupled Logic
Show solution
Solution
ECL stands for Emitter-Coupled Logic, which is known for its high speed but also has higher power consumption.
Correct Answer:
A
— Emitter-Coupled Logic
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Q. What does FET stand for?
A.
Field Effect Transistor
B.
Frequency Emission Transistor
C.
Fast Electronic Transistor
D.
Floating Electrode Transistor
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Solution
FET stands for Field Effect Transistor, which uses an electric field to control current.
Correct Answer:
A
— Field Effect Transistor
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Q. What does HDL stand for in the context of digital systems?
A.
High Definition Language
B.
Hardware Description Language
C.
High Data Language
D.
Hardware Design Logic
Show solution
Solution
HDL stands for Hardware Description Language, which is used to describe the structure and behavior of electronic systems.
Correct Answer:
B
— Hardware Description Language
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