CBSE Class 12 Computer Science Java Basics MCQs Set A

CBSE Class 12 Computer Science Java Basics MCQs Set A with answers available in Pdf for free download. The MCQ Questions for Class 12 Computer Science with answers have been prepared as per the latest 2021 syllabus, NCERT books and examination pattern suggested in Standard 12 by CBSE, NCERT and KVS. Multiple Choice Questions for important part of exams for Grade 12 Computer Science and if practiced properly can help you to get higher marks. Refer to more Chapter wise MCQs for NCERT Class 12 Computer Science and also download more latest study material for all subjects

Question: Java is an object-oriented programming language developed by _______.

  • a) Oracle
  • b) Sun Micro systems
  • c) Unix
  • d) Netscape

Answer: Sun Micro systems


Question: _______ is a company best known for its high-end Unix workstations.

  • a) Oracle
  • b) Sun Micro systems
  • c) Unix
  • d) Netscape

Answer: Sun Micro systems


Question: Modeled after C++, the _____ language was designed to be small, simple and portable across platforms and operating systems both at the source and at the binary level.

  • a) Java
  • b) C
  • c) Basic
  • d) PHP

Answer: Java


Question: Java language was developed at Sun Micro systems in _____

  • a) 1993
  • b) 1992
  • c) 1991
  • d) 1990

Answer: 1992


Question: _______ is small, fast, efficient and easily portable to a wide range of hardware devices.

  • a) Java
  • b) C
  • c) Basic
  • d) PHP

Answer: Java


Question: ______ language is considered as one of the ideal language for distributing executable programs via the World Wide Web.

  • a) Java
  • b) C
  • c) Basic
  • d) PHP

Answer: Java


Question: Java is also a general-purpose programming language for developing programs that are \ easily usable and portable across different.

  • a) Tables
  • b) Stands
  • c) Libraries
  • d) Platforms

Answer: Platforms


Question: Java is an __________ language and here it differs from C.

  • a) Procedure-oriented
  • b) Structure-oriented
  • c) Object-oriented
  • d) Executable-oriented

Answer: Object-oriented


Question: Using _______one can take full advantage of object-oriented methodology and its capabilities of creating flexible, modular and reusable code.

  • a) Java
  • b) C
  • c) Basic
  • d) PHP

Answer: Java


Question: Java includes a set of ___________that provide basic data types, system input and output capabilities and other utility functions.

  • a) Class libraries
  • b) Class functions
  • c) Class methods
  • d) All of these

Answer: Class libraries


Question: These basic classes are part of the ________ .

  • a) KDJ
  • b) JDK
  • c) DKJ
  • d) DJK

Answer: JDK


Question: _______ has classes to support networking, common Internet protocols and user interface toolkit functions.

  • a) KDJ
  • b) JDK
  • c) DKJ
  • d) DJK

Answer: JDK


Question: ______ is platform-independent at both the source and binary level.

  • a) Java
  • b) C
  • c) Basic
  • d) PHP

Answer: Java


Question: ______ independence is a program's capability of being moved easily from one computer system to another.

  • a) Table
  • b) Program
  • c) Library
  • d) Platform

Answer: Platform


Question: At the ______ level, Java's primitive data types have consistent sizes across all development platforms.

  • a) Beginning
  • b) Destination
  • c) Source
  • d) Binary

Answer: Source


Question: At ______ level, platform-independence is possible due to byte code interpreter.

  • a) Beginning
  • b) Destination
  • c) Source
  • d) Binary

Answer: Binary


Question: The designers of Java chose to use a combination of ______ and interpretation.

  • a) Assembling
  • b) Compilation
  • c) Togetherness
  • d) All of these

Answer: Compilation


Question: Full form of JDK is_________

  • a) Java Developing Kit
  • b) Java Development Kit
  • c) Both (A) and (B)
  • d) None of these

Answer: Java Development Kit


Question: Programs written in Java are compiled into____________language for a computer that doesn't really exist.

  • a) Machine
  • b) Assembly
  • c) C++
  • d) Java

Answer: Machine


Question: The so-called "virtual" computer is known as

  • a) JMV
  • b) VMJ
  • c) JVM
  • d) MVJ 21)

Answer: JVM


Question: The full form of JVM is____________

  • a) Java Virtual Machine
  • b) Java Visible Machine
  • c) Java Viable Machine
  • d) None of these

Answer: Java Virtual Machine


Question: The machine language for the Java Virtual Machine is called Java___________

  • a) byte
  • b) byte numbers
  • c) byte code
  • d) bytes

Answer: byte code


Question: Different Java byte code__________is needed for each type of computer.

  • a) Compiler
  • b) Interpreter
  • c) Translator
  • d) None of these

Answer: Interpreter


Question: Java binary files are actually in a form called________that is not specific to any one processor or any operating system.

  • a) bytes
  • b) binary numbers
  • c) byte codes
  • d) byte

Answer: byte codes


Question: A disadvantage of using__________is its slow execution speed.

  • a) ASCII codes
  • b) binary numbers
  • c) byte codes
  • d) bytes

Answer: byte codes


Question: There are tools available tools to convert________into native code.

  • a) Java Byte codes
  • b) Java Language
  • c) Java Complies
  • d) All of these

Answer: Java Byte codes


Question: __________code is faster to execute, but then it does not remain machine independent.

  • a) Native
  • b) Original
  • c) ASCII
  • d) Binary

Answer: Native


Question: A Java Program should have at least one____________and it must have main___________in it

  • a) Class, procedure
  • b) Class, variable
  • c) Class, method
  • d) Class, code

Answer: Class, method


Question: A Java program is composed of____________

  • a) Functions
  • b) Classes
  • c) Programs
  • d) Variables

Answer: Classes


Question: C programmers can think of a class as a sort of creating a new composite data type by using_________and________

  • a) Structures, type
  • b) Functions, define
  • c) Classes, type def
  • d) Struct, type def

Answer: Struct, type def

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