Unit 4: Network Operations
Networking · Unit 4 · Paper 1

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 1” 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

IP address conflict

2

ping

3

traceroute / tracert

4

ipconfig / ifconfig / ip

5

Maintenance window

6

Common physical faults

7

Verify and document

8

Capacity planning

9

Loopback plug

10

Network monitoring

11

Structured troubleshooting method

12

Service level agreement (SLA)

Short answer 1. Define or explain: nslookup / dig

3 pts

Short answer 2. Define or explain: Rollback plan

3 pts

Short answer 3. Define or explain: Network baseline

3 pts

Short answer 4. Define or explain: Establish and test a theory

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.

A network administrator is given the block 192.168.10.0/24 and must divide it into subnets for four departments, the largest of which needs 50 usable host addresses. (a) State how many usable host addresses a /24 provides and explain why the usable count is two fewer than the total. (b) Determine the smallest prefix length that satisfies the 50-host requirement, showing your calculation. (c) State how many subnets of that size the /24 yields, and give the network address of the first two. (d) Explain what changes about the number of usable hosts and the number of subnets as the prefix length increases, and why an administrator would not simply give every department a /24.