Unit 4: Network Operations
Networking · Unit 4 · Paper 3

Network Operations unit test

A test on this unit alone, marked as a percentage and a letter grade — for the test your class is actually sitting, rather than for May. Answer everything, then submit once: seeing the answer to question 3 before attempting question 4 makes the final percentage meaningless.

Paper 1Paper 2Paper 3
Each paper is built from this unit’s 40 terms and is the same for everyone, so a teacher can assign “Unit 4, Paper 3” and every student sits the identical test. Multiple choice is marked objectively; the written sections you mark yourself against the model answer and rubric.
Suggested time 33 min 30 points0/17 attempted
1

Mean time between failures and mean time to repair

2

traceroute / tracert

3

Duplex mismatch

4

Common physical faults

5

Establish and test a theory

6

Cable tester and toner probe

7

NetFlow and flow data

8

Post-incident review

9

Packet capture

10

Alert threshold

11

Capacity planning

12

Physical vs logical diagram

Short answer 1. Define or explain: Rollback plan

3 pts

Short answer 2. Define or explain: Network monitoring

3 pts

Short answer 3. Define or explain: Network documentation

3 pts

Short answer 4. Define or explain: nslookup / dig

3 pts

Free response

6 pts

This course has no free-response prompt tagged to this unit, so one from elsewhere in the course is used. It is still worth writing — the skill transfers.

Users on one floor of a building report that internal file shares work normally but no external websites load. (a) Describe a structured troubleshooting methodology and explain why working in a defined order is better than changing settings until something works. (b) Explain what the ability to reach internal resources but not external ones tells you about where the fault is likely to be. (c) Name two commands or tools you would use, and state precisely what each result would rule in or out. (d) You find the floor's switch has a misconfigured VLAN. Explain what a VLAN does and why a misconfiguration could produce exactly this symptom.