Network Cookie Review - IGCSE478
Presentation
•
Computers
•
10th Grade
•
Practice Problem
•
Easy
Craig GRIEBENOW
Used 1+ times
FREE Resource
6 Slides • 11 Questions
1
By Craig GRIEBENOW
2
Drag and Drop
DNS server responds with
Browser sends
Google server receives the request and sends back
Browser receives the
3
Open Ended
What would happen if we skipped step 3 (DNS)?
4
Open Ended
Why does the browser need to render HTML?
5
Key Takeaway
Full process =
DNS query
→ IP response
→ HTTP request
→ HTML response
→ browser rendering
6
Open Ended
SCENARIO: It's lunchtime at school. Student A logs into the school learning platform using a persistent cookie (so they stay logged in). They check their grades, then leave to get lunch. They forget to log out.
5 minutes later, Student B sits down at the same computer and opens the browser.
Is Student A still logged in? Why or why not?
7
Open Ended
SCENARIO: It's lunchtime at school. Student A logs into the school learning platform using a persistent cookie (so they stay logged in). They check their grades, then leave to get lunch. They forget to log out.
5 minutes later, Student B sits down at the same computer and opens the browser.
What could Student B do?
8
Open Ended
SCENARIO: It's lunchtime at school. Student A logs into the school learning platform using a persistent cookie (so they stay logged in). They check their grades, then leave to get lunch. They forget to log out.
5 minutes later, Student B sits down at the same computer and opens the browser.
Why is this a security problem?
9
Open Ended
How would session cookies prevent this?
10
Open Ended
Why is this important for shared school computers?
11
Key Takeaway
Session cookies
= auto-logout
= security on shared computers.
Persistent cookies
= security risk on shared devices.
12
Minimal — no long-term tracking; auto-logout
Higher — enables long-term tracking of shopping habits; could be sold to advertisers
Privacy Impact
Session: Keeps items in cart while you shop; deleted when you close browser
Persistant: Faster checkout on future visits; convenient for returning customers
Why Its Useful
13
Open Ended
Why does Amazon use session cookies for your shopping cart?
14
Open Ended
Why does Amazon use persistent cookies for your saved address?
15
Open Ended
Which cookie type is better for privacy?
16
Key Takeaway:
E-commerce uses both because session
= immediate functionality
persistent
= convenience.
But persistent raises privacy concerns.
17
Full step-by-step sequence (not just "DNS converts domain to IP")
Explain what goes wrong and why it's a security/privacy problem
Show how each is used, why both are needed, and the implications
What to include:
Process
Scenaro
Comparison
Question Type:
By Craig GRIEBENOW
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