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If an HTTP servlet receives a request with an invalid session token, what should it do next?

  • Generate a new session token and proceed
  • Ignore the request
  • Redirect to the login page
  • Send an HTTP 401 Unauthorized response
In the case of an invalid session token, it's a security best practice to send an HTTP 401 Unauthorized response to prompt reauthentication.
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Which method of the RequestDispatcher interface is used to forward a request from a servlet to another resource?

  • dispatch()
  • forward()
  • forwardRequest()
  • redirect()
The forward() method of the RequestDispatcher interface is used to forward a request from a servlet to another resource within the same server.
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What is the key difference in the way servlets and JSPs are compiled?

  • Both servlets and JSPs are compiled just-in-time (JIT)
  • Both servlets and JSPs are interpreted
  • JSPs are precompiled
  • Servlets are precompiled
Servlets are precompiled into bytecode during the build process, while JSPs are typically compiled into servlets at runtime. This compilation difference contributes to the performance variations between servlets and JSPs.
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If a servlet generates dynamic content and you want to ensure it's not cached, which combination of response headers should be set?

  • Cache-Control: no-store, Pragma: no-cache
  • ETag, Cache-Control: no-cache
  • Expires: 0, Cache-Control: must-revalidate
  • Last-Modified, Cache-Control: private
To ensure dynamic content is not cached, the combination of Cache-Control: no-store and Pragma: no-cache headers should be set in the HttpServletResponse.
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Which allows embedding Java code directly into the HTML code?

  • Applet
  • JSP
  • JavaBean
  • Servlet
JavaServer Pages (JSP) allows the embedding of Java code directly into HTML code, facilitating the creation of dynamic web pages with server-side logic.
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In the lifecycle of JSP, after the translation phase, it undergoes the ______ process.

  • compilation
  • destruction
  • execution
  • initialization
After the translation phase, JSP undergoes the execution process, where the generated servlet is executed to produce dynamic content.
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JSP is a technology on the server side to make ______ easier.

  • Client-side scripting
  • Java programming
  • Server-side scripting
  • Web development
JSP (JavaServer Pages) is a technology on the server side to make server-side scripting easier. It allows the embedding of Java code in HTML pages for dynamic content generation.
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Which method of the HttpServlet class is used to handle HTTP GET requests?

  • doGet()
  • doPost()
  • init()
  • service()
The doGet() method of the HttpServlet class is specifically designed to handle HTTP GET requests.
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How does a servlet differentiate between GET and POST requests?

  • By request headers
  • By session cookies
  • By the request URL
  • By the request body
A servlet differentiates between GET and POST requests by examining the request body. GET requests append data to the URL, while POST requests send data in the request body.
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In a scenario where cookies are disabled, which session tracking technique can be employed?

  • HTTP Session
  • Hidden Form Fields
  • IP Address Tracking
  • URL Rewriting
URL Rewriting is a session tracking technique that can be employed when cookies are disabled. It involves appending session information to URLs.
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