Networking · Unit 1 · Paper 3

Network Foundations 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 1 Paper 2 Paper 3

Each paper is built from this unit’s 40 terms and is the same for everyone, so a teacher can assign “Unit 1, 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

Collision domain

Switch

TCP

Load balancer

TCP three-way handshake

Choosing TCP or UDP

Subnet mask

Broadcast domain

OSI model

Network and broadcast addresses

Router

Access point

Short answer 1. Define or explain: Encapsulation

3 pts

Short answer 2. Define or explain: MAC address

3 pts

Short answer 3. Define or explain: IPv4 address

3 pts

Short answer 4. Define or explain: Layers 5–7 — Session, Presentation, Application

3 pts

Free response

6 pts

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.