Which of the following is false regarding server-side scripting?

Question

BlackTom AI · Accepted Answer

Server-side code runs on the web server and only the generated output (HTML/JSON/etc.) is sent back to the client, so the server-side source is not exposed to the browser.

1. Relevant knowledge points and concepts
- Server-side scripting: code executed on the server (examples: PHP, Python/Flask, Node.js back-end). The server processes requests, interacts with databases, and returns rendered output to the client.
- Client-side vs server-side visibility: client only receives the response (HTML/CSS/JS), not the original server code.
- Browser-dependence: server-side logic runs on the server and is independent of the client’s browser implementation.
- Database access: server-side scripts commonly connect to and query server-side databases.
- Cross-platform issues: server-side code affects how clients receive content; because execution is centralized, differences between client platforms/browsers are minimized (server must run on a supported OS/runtime, but clients receive standard output).

2. Step-by-step reasoning
- When a browser requests a page, the server invokes the server-side script.
- The script executes on the server, possibly querying a database and building HTML.
- The resulting HTML/JSON is sent to the client; the server’s source files remain on the server and are not transmitted.
- Therefore, the statement “Its code is visible to the client” is incorrect.

3. Intermediate steps / examples
- Example: A PHP file contains <?php echo "Hello"; ?>. The server executes it and sends “Hello” in the HTML response; the PHP source tags are not visible in the browser’s “View Source.”
- Database access: server script connects to MySQL and returns query results—this demonstrates server-side DB access capability.
- Browser independence: regardless of whether the client uses Chrome or Firefox, server-side code runs the same and returns the same HTML.

4. Why the correct answer is correct
- Option (a) contradicts the core property of server-side scripting: source code executes on the server and is not exposed to clients. Thus (a) is false.

5. Why other options are incorrect (i.e., why they are true statements)
- (b) It is not browser dependent — True: execution occurs on server, not in client browser.
- (c) It may access the server database — True: server-side scripts commonly perform DB operations.
- (d) It does not have cross-platform issues — In context this means it avoids client platform/browser differences because output is standardized; so this statement is considered true in typical exam context.

6. Conclusion
The false statement is option a. This matches the provided correct answer: a.

Which of the following is false regarding server-side scripting?单项选择题

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