Here you will get 20 MCQs on Java Architecture.

MCQs on Java Architecture

  1. What is the key principle of Java’s architecture that allows code to run on different platforms without modification? a) Portability b) Polymorphism c) Inheritance d) Encapsulation
  2. Which component of the Java architecture is responsible for converting Java source code into bytecode? a) Java Compiler b) Java Virtual Machine (JVM) c) Java Runtime Environment (JRE) d) Java Development Kit (JDK)
  3. In the Java architecture, what is the purpose of the class loader? a) To load bytecode into the JVM b) To compile Java source code c) To execute Java applications d) To manage memory allocation
  4. Which memory area of the Java Virtual Machine is used for storing class-level information and metadata? a) Heap b) Stack c) Method Area d) Native Method Stack
  5. What is the primary function of the Java Virtual Machine (JVM) in the Java architecture? a) Compiling Java code b) Executing bytecode c) Loading Java classes d) Generating documentation
  6. Which component of the Java architecture provides a runtime environment for executing Java applications? a) Java Compiler b) Java Virtual Machine (JVM) c) Java Runtime Environment (JRE) d) Java Development Kit (JDK)
  7. Which memory area of the Java Virtual Machine stores references to objects and arrays? a) Heap b) Stack c) Method Area d) Native Method Stack
  8. What is the purpose of the Just-In-Time (JIT) compiler in the Java architecture? a) To compile Java source code b) To translate bytecode to machine code c) To manage memory allocation d) To provide networking capabilities
  9. In the Java architecture, which part is responsible for managing and executing threads? a) Heap b) Method Area c) Thread Scheduler d) Class Loader
  10. Which component of the Java architecture is responsible for garbage collection and memory management? a) Heap b) Stack c) Method Area d) Java Garbage Collector
  11. What is the role of the Java Native Interface (JNI) in the Java architecture? a) It provides a way to include JavaScript code in Java applications. b) It enables Java code to interact with native code libraries. c) It compiles Java source code into native machine code. d) It facilitates remote method invocation in distributed systems.
  12. What is the purpose of the bytecode verifier in the Java architecture? a) To optimize the bytecode for better performance b) To ensure that the bytecode conforms to the Java language specifications c) To convert bytecode into machine code d) To verify the memory usage of bytecode
  13. Which memory area of the Java Virtual Machine stores local variables and partial results of method calls? a) Heap b) Stack c) Method Area d) Native Method Stack
  14. In the Java architecture, which part is responsible for loading classes dynamically at runtime? a) Class Loader b) Method Area c) Thread Scheduler d) Heap
  15. What is the purpose of the “java” command in the Java architecture? a) To compile Java source code b) To run the Java Virtual Machine (JVM) c) To generate bytecode from source code d) To optimize Java applications
  16. Which memory area of the Java Virtual Machine is used for storing the execution stack of threads? a) Heap b) Stack c) Method Area d) Native Method Stack
  17. What is the Java Card platform primarily used for? a) Running Java applets within web browsers b) Developing desktop applications c) Building mobile and embedded applications d) Creating graphical user interfaces
  18. In the Java architecture, what is the purpose of the security manager? a) It restricts access to system resources based on the security policy. b) It manages memory allocation for Java applications. c) It compiles Java source code into bytecode. d) It provides networking capabilities for Java applications.
  19. Which component of the Java architecture is responsible for executing Java applets in web browsers? a) Java Compiler b) Java Virtual Machine (JVM) c) Java Runtime Environment (JRE) d) Java Applet Viewer
  20. What is the main advantage of using the Java architecture’s bytecode over native machine code? a) Bytecode is more memory-efficient. b) Bytecode is faster to execute. c) Bytecode allows for cross-platform compatibility. d) Bytecode is easier to write and debug.

Answers

  1. a) Portability
  2. a) Java Compiler
  3. a) To load bytecode into the JVM
  4. c) Method Area
  5. b) Executing bytecode
  6. c) Java Runtime Environment (JRE)
  7. a) Heap
  8. b) To translate bytecode to machine code
  9. c) Thread Scheduler
  10. a) Heap
  11. b) It enables Java code to interact with native code libraries.
  12. b) To ensure that the bytecode conforms to the Java language specifications
  13. b) Stack
  14. a) Class Loader
  15. b) To run the Java Virtual Machine (JVM)
  16. b) Stack
  17. c) Building mobile and embedded applications
  18. a) It restricts access to system resources based on the security policy.
  19. b) Java Virtual Machine (JVM)
  20. c) Bytecode allows for cross-platform compatibility.

Further Reading

Spring Framework Practice Problems and Their Solutions

From Google to the World: The Story of Go Programming Language

Why Go? Understanding the Advantages of this Emerging Language

Creating and Executing Simple Programs in Go

20+ Interview Questions on Go Programming Language

Java Practice Exercise

programmingempire

Princites