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Grade 7 Cybersecurity & Passwords Worksheet with Answers
Grade 7 (US) · Year 8 (UK) · Class 7 (India) · Computer Science
Unit 4: Networks & SecurityCybersecurityCSTA 2-NI-05
Password strength by counting combinations, spotting threats, and simple encryption. This free middle 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.
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Practice Sheetaethelsystems.comCybersecurity & Passwords
Grade 7 · Computer Science
Name
Class
Date
Learning goal: Cybersecurity · CSTA 2-NI-05
Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.
Which is the strongest password: myname2010, Blue$Kite!92 or qwerty?
Answer: Blue$Kite!92
RememberStaying secure
- 1
A PIN has 3 digits (0–9). How many different PINs are possible?
- 2
A password is 3 lowercase letters (a–z). How many passwords are possible?
- 3
A PIN has 4 digits (0–9). How many different PINs are possible?
- 4
A PIN has 6 digits (0–9). How many different PINs are possible?
- 5
A PIN has 5 digits (0–9). How many different PINs are possible?
- 6
A Caesar cipher moved every letter 1 forward. Decrypt: DPEF
- 7
A Caesar cipher moved every letter 2 forward. Decrypt: UCHG
- 8
A Caesar cipher moved every letter 2 forward. Decrypt: FCVC
- 9
A password is 2 lowercase letters (a–z). How many passwords are possible?
- 10
A Caesar cipher moved every letter 1 forward. Decrypt: DMPVE
- 11
A Caesar cipher moved every letter 2 forward. Decrypt: NQIKP
- 12
A password is 4 lowercase letters (a–z). How many passwords are possible?
★ Challenge corner for fast finishers
A robot on a grid can only move forward 1 square, or turn. What is the fewest forward moves to go 4 squares east and 3 squares north?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/computer/7/cybersecurity
Answer key — Cybersecurity & Passwords (Grade 7)
- 1.1,000
- 2.17,576
- 3.10,000
- 4.1,000,000
- 5.100,000
- 6.code
- 7.safe
- 8.data
- 9.676
- 10.cloud
- 11.login
- 12.456,976
- ★7
Answer key (click to show)
- 1.1,000
- 2.17,576
- 3.10,000
- 4.1,000,000
- 5.100,000
- 6.code
- 7.safe
- 8.data
- 9.676
- 10.cloud
- 11.login
- 12.456,976
- ★7 (challenge corner)
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