Show model answer and explanation
DNS
DNS maps domain names to records including addresses.
Class 10 · English Medium · Pearson Edexcel · ICT
Networks, internet and digital safety
Explain a network request and choose practical privacy protections.
Shared cross-level core and stretch unit. Start with the core questions, then use the stretch example for deeper work. The same unit is available in related class and board pathways; it is not a full grade-specific or examination-specification course. A teacher should select the appropriate depth and further topics.
Learn the idea
A network links devices using communication rules called protocols. A domain name can be resolved to a network address before a connection is made. Encryption protects data in transit, but it does not prove a website’s claims are honest or prevent the recipient from misusing data after receiving it.
Worked example
A browser requesting a learning page may resolve its domain, establish a secure connection and send an HTTP request. A padlock indicates a protected connection to that domain, not an endorsement of its content.
- Identify sender, recipient and data.
- Explain the role of the protocol.
- Share only data needed for the task.
Stretch example
A threat model names assets, possible attackers and likely paths. Separating authentication (who you are) from authorisation (what you may do) helps prevent a signed-in user accessing someone else’s records.
Your written practice
Show your working on paper and enter your answer here. If it does not match, compare the model and try again.
Show model answer and explanation
no
Connection encryption is not merchant verification.
Show model answer and explanation
no
Use a trusted route to check the request rather than disclosing credentials.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
It requires another factor beyond the password, reducing harm from some stolen-password attacks.
Avoid claiming protection from every attack.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
Ask the responsible guardian, consider the child’s privacy and the audience, and avoid unnecessary identifying details.
Include consent and data minimisation.
Show model answer and explanation
authorisation
Authorisation determines access rights.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
It may be copied or leaked; the server must verify the requester’s permission for each private record.
Describe a server-side check without exposing real records.
Privacy checklist
Map the minimum data needed for a fictional homework service.
Review with a guardian or teacher
- Name who needs each field.
- Keep secrets out of examples.
- Explain one server-side access rule.
Keep your work on paper or in a local file. This page does not upload it or automatically grade the project.
Teacher-led lessons, schedules and prices for this outline are upcoming. You can use any starter practice above now without booking.
Your next step
Solo practice works without an account. Sign in to save a practice record to your learner profile.
Keep practising
Exact lesson links and related activities are labelled separately. Return-to-course links retain your selected learning path.