Tag: technology

Questions Related to technology

Assuming that you are developing a Web Application called 'myApp'. You have a file called secret.txt which is part of the original Application, but you don't want your clients to gain access to it. What is the preferred way to do this?
technology web technology

  1. Place the file 'secret.txt' in a directory called 'protected' in the 'myApp' Web Application.

  2. Place the file 'secret.txt' in a directory called 'private' in the 'myApp' Web Application.

  3. Place the file 'secret.txt' in a directory called 'WEB-INF' in the 'myApp' Web Application.

  4. Any filename starting with 'secret' are usually not accessible by the Clients, so this file can be places anywhere in the Web Application.

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Correct Option: C

Which of the following methods can be used to retrieve all the attributes names from ServletContext?
technology web technology

  1. getAttributeNames()

  2. getAllAttributes()

  3. It is not possible to retrieve all the attributes in one call.

  4. getAttributes()

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Correct Option: A

Which of the following symbols is used to identifying the beginning of the query string and the consecutive name-value pairs in a request?
technology web technology

  1. ? and &

  2. & and =

  3. ? and =

  4. % and &

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Correct Option: A

What will be the output ?
technology programming languages

  1. Inside TRY Inside FINALLY

  2. Inside TRY

  3. Inside TRY Inside CATCH Inside FINALLY

  4. None of the above

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Correct Option: A

Guess the output ?
technology programming languages

  1. 6

  2. 33

  3. 123

  4. Exception

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Correct Option: B

mainly rootkits are created in java language.
technology security

  1. True

  2. False

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Correct Option: B

Guess the output :
technology programming languages

  1. 15

  2. 123

  3. 6

  4. Exception

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Correct Option: B

Can inner class have static members?
technology programming languages

  1. True

  2. False

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Correct Option: B

__________ is a software system that consists of a program or combination of several programs designed to hide or obscure the fact that a system has been compromised.
technology security

  1. worm

  2. virus

  3. rootkit

  4. malware

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Correct Option: C

What will happen when the HttpSession.setAttribute() method is called the second time with the same attribute name?
technology web technology

  1. An IllegalStateException exception will be thrown because of the presence of

  2. A second call to setAttribute() with the same attribute name will just replace the

  3. The behavior is not defined in the Servlet Specification.

  4. None of the above.

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Correct Option: B
Explanation:

To answer this question, the user needs to know about the HttpSession and its setAttribute() method.

Option A: This option is incorrect. IllegalStateException is thrown when we try to set an attribute on an already invalidated session, not when we set an attribute with the same name.

Option B: This option is correct. A second call to setAttribute() with the same attribute name will just replace the previous value associated with the attribute name with the new value.

Option C: This option is incorrect. The Servlet Specification does define the behavior of HttpSession.setAttribute() method when it is called the second time with the same attribute name.

Option D: This option is incorrect as option B is the correct answer.

Therefore, the correct answer is:

The Answer is: B. A second call to setAttribute() with the same attribute name will just replace the previous value associated with the attribute name with the new value.