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Network security
Computer science Worksheets and Python Workspaces shared by Coding Pathway teachers. Worksheets cover exam board theory as well as programming. Read any of them in full here. Teachers can copy one into their own lessons and edit it before setting it to a class.
Planning a whole course or unit? Our mapped pages put the teaching sequence in order with the Worksheets that cover it: OCR GCSE Computer Science (J277), Pearson Edexcel GCSE Computer Science (1CP2), OCR A Level Computer Science (H446), Python Turtle for Key Stage 3.
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Network security
2 resources match. Newest first. Opening a resource shows the whole thing, with answers and marking held back.
H446 1.3.1 · Compression, encryption and hashing
Includes OCR H446 1.3.1 Compression need, lossy and lossless choice
H446 1.3.1 asks not which method makes the smaller file but what a use case needs once the data is reconstructed. This worksheet builds that reconstruction test and applies it to lossy and lossless choices across contexts where the right answer changes. Students will: - explain why storage, bandwidth and transfer time make compression worthwhile - describe what happens to data across its original, compressed and reconstructed states - identify a use that clearly requires exact reconstruction - compare lossy and lossless compression using the same criterion on both sides - recommend a method for a medical scan, speech over a slow link and a configuration file, with reasons Inside: 5 explanation cells, 1 multiple-choice question, 2 fill-in-the-blanks cells and 2 written answers. 29 marks, about 35 to 45 minutes. Series: H446 1.3.1 · Compression, encryption and hashing, part 1 of 7.
WorksheetSeries · 3 partsJ277 1.4 · Network security
Includes J277 1.4.1 Threats and attacks
The forms of attack in OCR J277 1.4.1, explained through their mechanisms and effects. Students will: - recognise malware and explain how it can harm files or data - distinguish phishing from brute-force attacks - explain denial of service, interception and SQL injection - apply an attack mechanism to a new situation - retrieve attack names without a word bank Inside: 4 text sections, 1 multiple-choice activity, 3 completion activities, 6 written answers. 23 marks. Suggested teaching time: 45–65 minutes. 1 diagram. Includes a teacher guide with suggested sections, timings and common misconceptions. Series: J277 1.4 · Network security, part 1 of 3.