S1 ICT: File Management And Backup (Paper 4: Mistake Clinic)

S1 ICT: File Management and Backup (Paper 4: mistake clinic)

2026-11-12

S1 ICT: File Management and Backup (Paper 4: mistake clinic)

This last paper revisits the high frequency errors from the earlier three: a missing 1 024 factor, treating sync as backup, believing a rename is a backup, and keeping a copy only on the same machine. Check those four points after every question.

Direct answers　If one cause appears twice, write it on the first page of your notes and read only that page before the exam.

01　Paper details (check answers afterwards)

Item	Detail
Questions	10
Suggested time	20
Difficulty mix	Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1
Chapter	Chapter: S1 ICT: File Management and Backup
Level	S1 ICT

02　Questions (10 items)

FoundationWhat happens if a .jpg file is renamed to .docx?
FoundationHow many KB are there in 1 MB?
FoundationWhere should a wrongly deleted file be looked for first?
IntermediateA 2 GB folder holds files of 5 MB each; how many whole files fit?
IntermediateA student presses Save, breaks the original text and only then notices. What should have been done?
IntermediateWhat follows from deleting a file inside a cloud synced folder?
ChallengeBacking up 240 GB at 15 MB per second takes how long, to the nearest minute?
ChallengeAn 8 GB full backup is kept for 12 weeks; how much space is needed?
ChallengeHow many 4.7 GB DVDs are needed for 8.5 GB of data?
Error redoA student puts the backup in another folder on the same disk and claims there are two copies. What is wrong?

03　Answers and one-line notes

#	Answer	One-line note
1	It looks like a document but the content is still an image, so a word processor will usually fail to open it.	An extension is only a label, and a real conversion needs an export or a save from the right software.
2	1 024 KB.	Each step between KB, MB, GB and TB is 1 024, so multiply when moving down.
3	In the recycle bin, and if it is there, restore it.	The file survives until the bin is emptied, and reinstalling or saving over it too quickly removes the chance of recovery.
4	409 files.	2 times 1 024 gives 2 048 MB and 2 048 divided by 5 is 409.6, so only 409 whole files fit.
5	Save As should have been used first to keep the old version, then the new copy edited.	Once overwritten the original is hard to recover, so important documents are always saved under a new dated name.
6	The local and cloud copies are deleted together unless the version history restores it in time.	That is why syncing cannot replace a backup, and important data needs a separate independent copy.
7	About 4 hours 33 minutes.	240 times 1 024 gives 245 760 MB, dividing by 15 gives 16 384 seconds, which is 4 hours 33 minutes.
8	96 GB.	8 times 12 gives 96, and the space grows in proportion to the number of copies kept.
9	Two DVDs.	8.5 divided by 4.7 is 1.81, and rounding up gives 2 discs.
10	It counts two copies on one disk as a backup.	A disk failure destroys both together, so a backup belongs on another medium or at another site.

04　What to do after marking

After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
Repeat the same item two days later; move to the next paper only when both attempts are correct.
Parents only need the answer and note columns; there is no need to explain every item.

Use three columns in the error log: question, cause, corrected working. The three commonest causes are a missing 1 024 factor, treating syncing as backup, and believing a rename is a backup.Tutor Registration →

Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.