Multiple choice technology programming languages

Identify which of the following are true statements about web applications

  1. The only way to access resources under the /WEB-INF directory is through appropriate servlet mapping directives in the deployment descriptor

  2. Server-side code has access to all resources in the web application

  3. Clients of web applications can't directly access resources in /WEB-INF/tld.

  4. A good place to keep a .tld (tag library file) is directly in the /WEB-INF directory.
Reveal answer Fill a bubble to check yourself
B,C,D Correct answer
Explanation

In Java web applications: (A) is false because server-side code can also access /WEB-INF resources via ServletContext.getResourceAsStream(). (B) is true - server-side code has full access. (C) is true - clients cannot directly access /WEB-INF contents. (D) is true - /WEB-INF is the standard location for .tld files. The correct answers are B, C, D.

AI explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) The statement says that the only way to access resources under the /WEB-INF directory is through appropriate servlet mapping directives in the deployment descriptor. This statement is incorrect. The /WEB-INF directory is not accessible to clients directly, but server-side code can access resources in this directory without the need for servlet mapping directives.

Option B) The statement says that server-side code has access to all resources in the web application. This statement is correct. Server-side code, such as servlets or JSPs, has access to all resources within the web application, including files in the /WEB-INF directory.

Option C) The statement says that clients of web applications can't directly access resources in /WEB-INF/tld. This statement is correct. The /WEB-INF directory and its subdirectories are not directly accessible to clients. Therefore, clients cannot directly access resources in /WEB-INF/tld.

Option D) The statement says that a good place to keep a .tld (tag library file) is directly in the /WEB-INF directory. This statement is correct. The /WEB-INF directory is commonly used to store configuration files, including tag library descriptor files (.tld).

To summarize:

Option A) Incorrect - The /WEB-INF directory can be accessed by server-side code without servlet mapping directives. Option B) Correct - Server-side code has access to all resources in the web application. Option C) Correct - Clients cannot directly access resources in /WEB-INF/tld. Option D) Correct - The /WEB-INF directory is a good place to keep a .tld file.

The correct answer is B, C, and D.

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