A Java-based web application was instrumented. The browser snapshots provide a detailed look at an individual page request, however the correlated server-side snapshots are missing for all requests. W

Question

Options

• AServer has set the the HitpOnly flag on all cookies.
• BCorrelated server-side snapshots work only for NET Applications.
• CCorrelated snapshots are visible only if the injection mechanism is Automatic.
• DCorrelated snapshots are visible only if browser is Chrome.
• EServer side application is not instrumented with server agent.
• FCorrelated server-side snapshots are visible only if Java version is 1.7+.

• A
  62% (29)
• B
  4% (2)
• C
  11% (5)
• D
  21% (10)
• F
  2% (1)

Explanation

According to the Cisco AppDynamics Professional Implementer (CAPI) documents, the two reasons for the missing correlated server-side snapshots are: Server has set the HttpOnly flag on all cookies. (A) This is a valid reason because the HttpOnly flag is a security feature that prevents client-side scripts from accessing the cookies. However, the AppDynamics JavaScript Agent relies on the cookies to correlate the browser snapshots with the server-side snapshots. The JavaScript Agent injects a cookie named _appdyn_browser into the browser requests, which contains the correlation information. If the server sets the HttpOnly flag on all cookies, including the _appdyn_browser cookie, the JavaScript Agent cannot read or modify the cookie, and the correlation fails. To enable the correlation, the server should not set the HttpOnly flag on the _appdyn_browser cookie. Server-side application is not instrumented with server agent. (E) This is a valid reason because the server-side snapshots are collected by the AppDynamics app agents that instrument the application servers. The app agents monitor the business transactions that are executed by the server-side application, and capture the execution context, call graphs, errors, and metrics. If the server-side application is not instrumented with the app agent, the server-side snapshots are not available, and the correlation fails. To enable the correlation, the server-side application should be instrumented with the app agent that is compatible with the application server and the

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