Other

Question 1

What are the 7 layers of the OSI Model and their associated encapsulation states?

Answer 1

7. Application
8. Presentation
9. Session
10. Transport - Segments
11. Network - Packets
12. Data Link - Frames
13. Physical - Bits

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Question 2

What is the difference between T568A and T568B?

Answer 2

T568A has green as its first pair (1,2) while T568B has orange as its first pair (1,2).

Question 3

What are the 8 syslog severity levels?

Answer 3

0 - Emergency - System is unusable
1 - Alert - Should be corrected immediately
2 - Critical
3 - Error
4 - Warning - Error might occur if not fixed
5 - Notice - Unusual events
6 - Info - Normal operational messages
7 - Debug - Useful for developers

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Question 4

What are the 7 steps for troubleshooting methodology?

Answer 4

1. Identify the problem
2. Establish a theory of probable cause
3. Test the theory
4. Establish a plan of action
5. Implement the solution
6. Verify full system functionality, implement preventive measures
7. Document findings