1.1.7 Check Your Understanding – Troubleshooting Process Answers Full 100% 2023
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In which step, of the seven-step troubleshooting process, would you create a rollback plan identifying how to quickly reverse a solution?
- test hypothesis
- define the problem
- gather information
- solve the problem and document solution
- analyze information
- propose hypothesis
- eliminate possible causes
Explanation & Hints: When testing a solution to a problem, it is a good idea to have a rollback plan in the event the solution does not work. This returns the network to the starting state so that a new solution can be tried or tested.
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What is the highest OSI layer that should be considered when troubleshooting routers and Layer 3 switches?
- Layer 1
- Layer 4
- Layer 2
- Layer 7
- Layer 3
Explanation & Hints: When troubleshooting, the OSI model can be used to help isolate network problems. If symptoms suggest a problem at a specific layer, a technician can focus on devices that operate at that layer. Routers and Layer 3 switches make forwarding decisions at Layer 3 and also make filtering decisions using access control lists, based on both Layer 3 and Layer 4 information.
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Which structured troubleshooting method should be used when a cabling problem is suspected?
- comparison
- educated guess
- follow-the-path
- bottom-up
- divide-and-conquer
- top-down
Explanation & Hints: Since cables operate at Layer 1, the physical layer, a bottom-up troubleshooting approach, which starts at Layer 1, is appropriate.
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Which structured troubleshooting method should be used when a software orientated problem occurs?
- comparison
- divide-and-conquer
- follow-the-path
- bottom-up
- educated guess
- top-down
Explanation & Hints: Since software operates at Layer 7, the application layer, a top-down troubleshooting approach, which starts at Layer 7, is appropriate.