L35 — Test 3: Algorithms, Mobile & Networks

Assignment Reference

This test evaluates the material from Lessons 24–34:

Lesson	Topic
L24	Algorithms & Programs
L25–L26	Mobile App Development (App Inventor)
L27–L28	Mobile App Interface & Design (Figma)
L29	Smart Home & IoT
L30	Digital Marketing
L31	Computer Networks
L32	Network Components: IP & DNS
L33	Information Security
L34	Network Security Measures

Format: the test has three parts — theoretical questions, a practical task, and an oral check. Total: 60 points.

#	Question	Max points
1	Define "algorithm". List 3 of its 5 properties.	4
2	Draw a flowchart for: "Ask a number. If it is even, print 'even'. Otherwise print 'odd'."	5
3	What is the difference between a LAN and a WAN? Give a real example of each.	4
4	What is DNS and why does it exist? What happens if the DNS server is unavailable?	4
5	List 3 types of cyber threats. For each, describe in one sentence how it works.	4
6	What is the difference between HTTP and HTTPS? How can you tell them apart in the browser?	3

Students complete one of the following tasks at the computer (teacher assigns):

Option 1 — App Inventor quiz

Build a 2-question quiz in MIT App Inventor (ai2.appinventor.mit.edu):

Criterion	Max points
App opens without errors	4
Both questions are shown, one at a time	6
Correct/incorrect feedback works	6
Score is tracked and shown at the end	6
A Reset button clears the score	3
Uses at least one variable correctly	3

Option 2 — Figma mockup

Design a 2-screen mobile app in Figma (figma.com):

Criterion	Max points
Home screen has top bar, 2+ cards, FAB, bottom nav	7
Detail screen has back arrow, image area, title, description, action button	7
Screens are connected with a clickable prototype link	5
Consistent colours and fonts	5
At least one UI design rule from L27 is demonstrably applied	4

The teacher picks 2 questions from the list below. The student answers out loud.

Question	Points
First question answered correctly	4
Second question answered correctly	4

Grade bands:

The teacher chooses 2 from this list based on the student's practical work:

What is a "performer" (executor) in the context of an algorithm? Give an example that is not a computer.
Show me your flowchart from Part A Q2. Trace it with the input number 7.
Open App Inventor and point to the block that checks if an answer is correct. Explain what each piece does.
In your Figma design — why did you use a FAB? What action does it represent? Could you use a regular button instead?
What is IoT? Name 2 devices in this room (or your home) that could be part of an IoT network.
Explain the client-server model. Who is the client and who is the server when you open Instagram?
What is an IP address? What's the difference between a private and a public IP?
What makes a password strong? Give me an example of a weak password and explain why it's weak.
What is 2FA? Why does it help even if your password is stolen?
I type https://mybank.com and see a 🔒 lock. Does that mean the site is safe? Explain.

Before the test begins, have ready:

A notebook or sheet of paper for Part A (written answers)
Access to the computer with a browser open (for Part B)
Your MIT App Inventor or Figma account logged in (no time to recover passwords during the test)
For App Inventor: your L25/L26 project open as a reference (you build a new one from scratch)
For Figma: a blank design file open, ready to start

On test day: