As a network administrator, if you are experiencing intermittent security issues what is the first thing you should do?

A.
Try obvious fixes

B.
Define a solution

C.
Isolate the problem

D.
Consider alternative solutions

Explanation:
Intermittent problems require isolation before any solution can be found. It is important to limit possible causes. This is done by isolating the network segment. By slowly removing each possible culprit you eventually will have isolated the actual problem.

Answer option B is incorrect. You cannot define a solution if you have not isolated the problem. Answer option A is incorrect. Once you have isolated the problem, you can then attempt obvious fixes.

Answer option D is incorrect. Alternative solutions should be considered after you have isolated the problem and tried obvious fixes.