MAKE IT YOURS
A world for every learner
Choose a grade to discover its colours and creative world.
Grade 11 Cybersecurity & Passwords Worksheet with Answers
Grade 11 (US) · Year 12 (UK) · Class 11 (India) · Computer Science
Unit 4: SecurityEncryption & Passwords
Password strength by counting combinations, spotting threats, and simple encryption. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
- Answer keys checked by code
- No ads, ever
- No student accounts needed
- Safety & privacy
Practice Sheetaethelsystems.comCybersecurity & Passwords
Grade 11 · Computer Science
Name
Class
Date
Learning goal: Encryption & Passwords
Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.
Which is the strongest password: T!ger7Moon#, password123 or 12345678?
Answer: T!ger7Moon#
RememberStaying secure
- 1
A password is 2 lowercase letters (a–z). How many passwords are possible?
- 2
A PIN has 3 digits (0–9). How many different PINs are possible?
- 3
A PIN has 4 digits (0–9). How many different PINs are possible?
- 4
A PIN has 5 digits (0–9). How many different PINs are possible?
- 5
A Caesar cipher moved every letter 1 forward. Decrypt: DMPVE
- 6
A Caesar cipher moved every letter 1 forward. Decrypt: EBUB
- 7
A password is 3 lowercase letters (a–z). How many passwords are possible?
- 8
A password is 4 lowercase letters (a–z). How many passwords are possible?
- 9
A Caesar cipher moved every letter 1 forward. Decrypt: MPHJO
- 10
A Caesar cipher moved every letter 3 forward. Decrypt: ORJLQ
- 11
A Caesar cipher moved every letter 3 forward. Decrypt: FORXG
- 12
A Caesar cipher moved every letter 2 forward. Decrypt: DAVG
★ Challenge corner for fast finishers
How many different patterns can 7 bits make?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/computer/11/cybersecurity
Answer key — Cybersecurity & Passwords (Grade 11)
- 1.676
- 2.1,000
- 3.10,000
- 4.100,000
- 5.cloud
- 6.data
- 7.17,576
- 8.456,976
- 9.login
- 10.login
- 11.cloud
- 12.byte
- ★128
Answer key (click to show)
- 1.676
- 2.1,000
- 3.10,000
- 4.100,000
- 5.cloud
- 6.data
- 7.17,576
- 8.456,976
- 9.login
- 10.login
- 11.cloud
- 12.byte
- ★128 (challenge corner)
Need another Cybersecurity & Passwords worksheet?
Generate unlimited fresh versions at easy, medium or hard difficulty, each with its own answer key. Free during our launch — no card needed.
Create a free accountHow to use this worksheet
- Use it for revision before a test, as homework, or as a timed practice set.
- Students can self-mark with the answer key and note which question types they got wrong.
- Generate several versions of the same topic for spaced practice in the weeks before an exam.
Related worksheets
Can't find what you need? Tell us which worksheet to make next.
Frequently asked questions
Does this Grade 11 Cybersecurity & Passwords worksheet come with answers?
Yes. The full answer key is on this page, and it prints on its own page after the questions. Every answer is calculated or checked by code rather than written by an AI model, so the key is always correct.
How do I print it or save it as a PDF?
Click "Download PDF" to save a ready-to-print PDF with the answer key on the last page, or click "Print" to send the worksheet and answer key straight to your printer.
Can I get a different Cybersecurity & Passwords worksheet?
Yes. Create a free account to generate as many fresh Grade 11 Cybersecurity & Passwords worksheets as you like, at easy, medium or hard difficulty, each with its own answer key.
Is this worksheet free?
Yes. This worksheet is free to print, and Practice Sheet is free to use during our launch with no card needed.