Tag: java

Questions Related to java

How does Tomcat execute a JSP?
java

  1. As a CGI script

  2. As an independent process

  3. By one of Tomcat's threads

  4. None of the above is correct.

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Correct Option: C

The Maximum Length Of The Session Id(Length Identifier) Is ___________

java

  1. 4K

  2. 2K

  3. 6K

  4. None of the above is correct.

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Correct Option: A

AI Explanation

To answer this question, we need to understand what a session ID is and its maximum length.

A session ID is a unique identifier assigned to each user session in a web application. It is used to track and identify the user's session. The length of a session ID can vary depending on the implementation and requirements of the web application.

Option A) 4K - This option is correct because it states that the maximum length of the session ID is 4K. In computer science, K represents 1024, so 4K would be 4 * 1024 = 4096 characters.

Option B) 2K - This option is incorrect because it states that the maximum length of the session ID is 2K, which is less than the correct answer.

Option C) 6K - This option is incorrect because it states that the maximum length of the session ID is 6K, which is greater than the correct answer.

Option D) None of the above is correct - This option is incorrect because option A is the correct answer.

Therefore, the correct answer is A) 4K. The maximum length of the session ID is 4K, which is 4096 characters.

Following method(s) cannot be overridden in the JSP page.
java

  1. _jspService()

  2. jspInit()

  3. jspDestroy()

  4. getParameter()

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Correct Option: A

The session tracking in the JSP can be done by :-

  1. URL rewriting
  2. Cookies
  3. User-Authorization
  4. Hidden Files
java

  1. 1,3,4 only

  2. 2,3,4 only

  3. 1,2,4 only

  4. 1,2,3,4

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Correct Option: C

Calling of which of the following method causes unpredictable results in the Servlet.
java

  1. doPost()

  2. doGet()

  3. System.out.println()

  4. System.exit(0);

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Correct Option: D

Some Operating Systems have a limitation on the Max Length of the URL, which are normally _______ characters.

java

  1. 255

  2. 225

  3. 264

  4. 250

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Correct Option: A

The mails can be send from the Servlet by the usage of the following :-

java

  1. Simple Mail Transfer Protocol (SMTP) implementation in Java.

  2. Java Mail API

  3. Both a and b

  4. Neither a and b

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Correct Option: A

You read the following statement in a Java program that compiles and executes.

submarine.dive(depth);

What can you say for sure?

java

  1. depth must be an int

  2. dive must be a method.

  3. dive must be the name of an instance field.

  4. submarine must be the name of a class

  5. submarine must be a method.

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Correct Option: B

Given the following class definition, which of the following methods could be legally placed after the comment //Here public class Rid{ public void amethod(int i, String s){} //Here }

java

  1. public void amethod(int s, String i){}

  2. public void Amethod(int i, String s) {}

  3. public void amethod(int i, String mystring){}

  4. None of the above

  5. public int amethod(int i, String s){}

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Correct Option: B

Which of the following are primitive types?

java

  1. Float

  2. None of the above

  3. byte

  4. String

  5. integer

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Correct Option: C