Client-side testing is designed to find vulnerabilities in which area?

• A. Server-side applications
• B. Client-side software such as browsers and media players
• C. Network hardware
• D. Database backends

Answer: (B)

Testing the client side targets weaknesses in software that runs on the end-user’s device. This includes things like web browsers, browser plugins, media players, and other client applications that execute on the user’s machine. These programs process data and code locally, so flaws in input handling, local storage, memory management, and client-side logic can lead to vulnerabilities such as code execution, data leakage, or crashes, independent of the server. By focusing on the client environment, you can uncover issues that attackers could exploit before data ever leaves the user’s control.

Other areas lie outside client-side testing: server-side applications run on the server, network hardware refers to devices that route or connect traffic, and database backends handle data storage on the server.