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

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 file transfer application and a live video call run over the same campus network. (a) State which transport protocol each would typically use and justify each choice in terms of the application's requirements. (b) Describe the TCP three-way handshake, naming the segments exchanged. (c) Explain how TCP provides reliability, naming two specific mechanisms. (d) Explain why adding TCP's reliability to the video call would likely make the user experience worse, not better.