computer-science/aqa/questions","basePath":"/gcse/computer-science/aqa/units-of-information/questions","formulaUrl":null,"initialIndex":2,"initialQuestionWindow":[{"id":"00bc1718-3878-43d5-b653-89ed044b1a2c","revisionId":"a1a52785-47b3-41c5-83d8-81ce8b02eca3","questionNumber":null,"questionType":"LA","specification":"","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"5a16b150-ff5a-47eb-890a-e89a8a47060f","label":null,"content":"How many bits are there in 6 kB?\n\nAssume 1 kilobyte (kB) = 1,000 bytes.\n\nYou should show your working.","markscheme":"- Converts kB to bytes by multiplying $6$ by $1,000$ (or $1,024$) to get $6,000$ (or $6,144$) bytes M1\n- Converts bytes to bits by multiplying the number of bytes by $8$ to obtain $48,000$ bits (or $49,152$ bits) A1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"0642702e-8c1e-49fa-bb9b-5ec0e78f5c73","revisionId":"882830f4-9b19-4f15-a86b-ff16a651d3b9","questionNumber":null,"questionType":"LA","specification":"A smart-grid sensor network transmits a telemetry log containing $560\\,000\\,000$ bits of data.","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"061e2ebb-b66f-4e8e-9f9c-deb4c577a7a3","label":null,"content":"Convert this data volume to megabytes (MB).\n\nYou should show your working.","markscheme":"- Converts bits to bytes by dividing by 8:\n $$560\\,000\\,000 \\div 8 = 70\\,000\\,000\\text{ bytes}$$ M1\n- Converts bytes to megabytes (MB) by dividing by $1\\,000\\,000$:\n $$70\\,000\\,000 \\div 1\\,000\\,000 = 70\\text{ MB}$$ A1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"08d13fb1-c4b7-4af8-bcf6-914564d09813","revisionId":"4eadc709-a79c-4d43-a6d7-b0265fdd78fc","questionNumber":null,"questionType":"LA","specification":"","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"88fa8e4b-d621-483c-b672-79fe036c06f5","label":null,"content":"A microcontroller stores a configuration file with a size of 12.5 KB.\n\nCalculate the number of **bits** in this file.\n\nShow your working.","markscheme":"- Converts KB to Bytes: $12.5 \\times 1000 = 12,500$ Bytes OR $12.5 \\times 1024 = 12,800$ Bytes M1\n- Converts Bytes to bits to get the final answer: $12,500 \\times 8 = 100,000$ bits OR $12,800 \\times 8 = 102,400$ bits A1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null}],"subjectCode":"gcse_computer_science__aqa","summaries":[{"id":"006415ef-2912-4124-b619-c14a37610bbb","difficultyBand":"easy","calculatorUse":null},{"id":"00bc1718-3878-43d5-b653-89ed044b1a2c","difficultyBand":"easy","calculatorUse":null},{"id":"0642702e-8c1e-49fa-bb9b-5ec0e78f5c73","difficultyBand":"easy","calculatorUse":null},{"id":"08d13fb1-c4b7-4af8-bcf6-914564d09813","difficultyBand":"easy","calculatorUse":null},{"id":"0ad7c20c-f245-43ae-81e2-b7ecf5545d34","difficultyBand":"easy","calculatorUse":null},{"id":"105192ad-0724-4ee1-b7a8-e62ea18f04e4","difficultyBand":"easy","calculatorUse":null},{"id":"14c24c73-f5c3-4e39-8ee7-bebc5c2bbf99","difficultyBand":"medium","calculatorUse":null},{"id":"1673e8c0-5e84-4a48-be24-2763b64e67be","difficultyBand":"easy","calculatorUse":null},{"id":"256698b8-fb9a-4ec9-b1fd-111194996db4","difficultyBand":"easy","calculatorUse":null},{"id":"470b1f0f-5a97-4f68-8c25-95fb3141d2f7","difficultyBand":"easy","calculatorUse":null},{"id":"51c64a6f-a8e5-40eb-9b47-c8699bfe3f52","difficultyBand":"easy","calculatorUse":null},{"id":"71918bc9-0850-4c17-a891-235dfab1fc02","difficultyBand":"easy","calculatorUse":null},{"id":"87eeca23-eb4f-4fea-86d4-f911ee3252fa","difficultyBand":"easy","calculatorUse":null},{"id":"89f5e734-be8b-4973-be17-92fb3997e376","diffi

Units of information

Question 3

Units of information Questions

Units of information

Question 3

Units of information Questions