S1 ICT: File Management And Backup (Paper 3: Challenge)

S1 ICT: File Management and Backup (Paper 3: challenge)

2026-11-12

S1 ICT: File Management and Backup (Paper 3: challenge)

This paper is all multi step conversion: unify the units, multiply or divide, then express the answer in hours and GB. Skip a step and the answer moves by an order of magnitude.

Direct answers　Check against common sense afterwards: 500 GB at 25 MB per second cannot take five minutes and cannot take more than ten hours.

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)

FoundationThe path D:\School\ICT\notes\ch3.docx has how many folder levels?
Foundation4 TB of data is backed up onto 500 GB drives; what is the minimum number of drives?
FoundationHow many GB is a 1 536 MB file?
IntermediateA 50 GB full backup is made on the first day and 2 GB incremental copies on each of the next six days; what is the weekly total?
IntermediateUploading a 300 MB backup at 6 Mbps takes about how many seconds?
IntermediateHow many 4.7 GB DVDs are needed for 14.1 GB of data?
Challenge1 200 files average 2.5 MB each; what is the total in GB to two decimal places?
ChallengeA two hour backup window at 18 MB per second covers how many GB to two decimal places?
ChallengeWhat does the 3-2-1 rule of backup mean, and why keep one copy off site?
Error redoA student renames a file to report_backup.docx and calls it backed up. What is wrong?

03　Answers and one-line notes

#	Answer	One-line note
1	Three levels: School, ICT and notes.	After the drive letter and before the file name every segment is a folder level, and the last segment is the file.
2	Nine drives.	4 times 1 024 gives 4 096 GB and 4 096 divided by 500 is 8.192, which must be rounded up to 9.
3	1.5 GB.	1 536 divided by 1 024 equals 1.5, and going from MB to GB means dividing by 1 024.
4	62 GB.	50 plus six times 2 gives 62, since the first day is already a full copy and the next six days add only changes.
5	400 seconds.	300 MB is 2 400 megabits, and dividing by 6 gives 400 seconds since a byte is eight bits.
6	Three DVDs.	14.1 divided by 4.7 is exactly 3, though in practice a spare disc is wise because a disc never holds its full rating.
7	2.93 GB.	1 200 times 2.5 gives 3 000 MB, and dividing by 1 024 gives 2.93 GB.
8	About 126.56 GB.	2 times 3 600 gives 7 200 seconds, times 18 gives 129 600 MB, and dividing by 1 024 gives 126.56 GB.
9	Three copies, on two different kinds of media, with one off site, because a fire or flood destroys every copy in one place.	Two of the three may sit together, but at least one must be kept away from the site.
10	Renaming does not create a second file, so damage to the original still loses everything.	A backup needs an independent copy at a different point in time before it can restore anything.

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.

Challenge questions are multi step: convert the unit, divide by the size of one file or by the speed, then express the result in hours and GB. Write the unit at every step so the answer stays the right size.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.