Java Test To Assess Java Architect

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1/10 Questions

What was Java initially called?
- OAK
- CAJ
- JAV
- Java-C

About This Quiz

Java is one of the most popular and authoritative programming languages in the whole world. Take this quiz to evaluate your level of Java programming language.

Java Test To Assess Java Architect - Quiz

2.

Who is the father of Java?
- Larry Page
- Bjarne Stroustrup
- James Gosling
- None of the above
Correct Answer

A. James Gosling

Explanation

James Gosling is considered the father of Java because he is the main creator of the Java programming language. Gosling, along with his team at Sun Microsystems, developed Java in the mid-1990s. He designed the language to be simple, platform-independent, and secure, making it suitable for a wide range of applications. Gosling's contributions to the development of Java have had a significant impact on the field of computer programming, making him widely recognized as the father of Java.

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3.

Java was publicly released in which of these years?
- 1993
- 1994
- 1995
- 1996
Correct Answer

A. 1995

Explanation

Java was publicly released in 1995. This marked the beginning of Java's widespread popularity and its adoption as a programming language for developing various applications. The release of Java brought about a new era in software development with its platform independence and object-oriented programming capabilities. Since then, Java has become one of the most widely used programming languages in the world, powering everything from mobile applications to enterprise systems.

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4.

What type of language is Java?
- Procedural
- Event driven
- Object oriented
- None of the above
Correct Answer

A. Object oriented

Explanation

Java is an object-oriented language because it is designed to organize and structure code around objects, which are instances of classes. In Java, objects have attributes (fields) and behaviors (methods), and they can interact with each other through method calls. This approach allows for the creation of modular and reusable code, as well as encapsulation and abstraction of data. Additionally, Java supports inheritance, polymorphism, and encapsulation, which are key features of object-oriented programming.

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5.

Which of these is used to compile java codes?
- Jar
- Java
- Javadoc
- Javac
Correct Answer

A. Javac

Explanation

Javac is used to compile Java codes. Javac is the Java compiler that converts Java source code into bytecode, which can then be executed by the Java Virtual Machine (JVM). It is a command-line tool that takes the source code files as input and produces the corresponding bytecode files as output. Javac is an essential tool in the Java development process, as it ensures that the code is syntactically and semantically correct before it can be executed.

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6.

How many ports of TCP/IP are reserved for specific protocols?
- 1024
- 2048
- 4096
- 8192
Correct Answer

A. 1024

Explanation

The correct answer is 1024. In TCP/IP, there are 1024 ports reserved for specific protocols. These ports are used to establish communication between devices over the internet. Each port is assigned to a specific protocol or service, allowing different applications to communicate with each other. By reserving these ports, it ensures that there is no conflict or interference between different protocols or services using the same port number.

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7.

How many bits are in a single IP address?
- 8
- 16
- 32
- 64
Correct Answer

A. 32

Explanation

An IP address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It consists of a series of 32 bits, which are typically represented as four sets of numbers separated by periods. Each set can range from 0 to 255, which is equivalent to 8 bits. Therefore, a single IP address contains 32 bits.

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8.

What does JDK in Java stand for?
- Java Developer Kit
- Java Debugging Kit
- Java Decompilation Kit
- None of the above
Correct Answer

A. Java Developer Kit

Explanation

The correct answer is Java Developer Kit. JDK stands for Java Developer Kit, which is a software development kit used by developers to create, compile, and run Java applications. It includes tools such as the Java compiler, debugger, and other utilities that are necessary for Java development. The Java Developer Kit is essential for anyone who wants to develop Java applications.

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9.

What is a JVM?
- Assembler
- Debugger
- Interpreter
- Compiler
Correct Answer

A. Interpreter

Explanation

A JVM (Java Virtual Machine) is an interpreter that executes Java bytecode. It converts the bytecode into machine code, which can be understood and executed by the underlying operating system. The JVM acts as a runtime environment for Java applications, allowing them to be platform-independent. It interprets the bytecode line by line and executes the instructions accordingly, making it the correct answer in this case.

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10.

Which of these consist of data and methods?
- Variable
- Class
- Vectors
- All of the above
Correct Answer

A. All of the above

Explanation

All of the options mentioned consist of both data and methods. A variable is a named storage location that holds a value, and it can also have associated methods. A class is a blueprint for creating objects, and it contains both member variables (data) and member functions (methods). Vectors are a type of data structure that can hold multiple values, and they also have associated methods for manipulating and accessing the data. Therefore, all of the given options consist of both data and methods.

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