QCE Digital Solutions Unit 3 Word Scramble: Interactions Between Users, Data and Digital Systems (Modules 15–119)
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Word scramble
Unscramble the letters and write each key term on the line.
1
NTCOROL IEASHCMNM
Decides what a system does next. Open loop ignores the result (a timer); closed loop uses a feedback signal from the result (a thermostat).
2
BWE CTPIALNPIAO
Software run through a browser, made of server-side parts (web server, database server, server-side code) and client-side parts (browser, user device) that connect over the internet.
3
AAASDETB VSRREE
A computer or program that stores a database and answers queries sent by other programs, such as a web server, by returning the matching data while keeping the stored data protected.
4
RISEDE-RSEV OCED
Code that runs on the web server, not the browser. It handles a request, processes form data, queries the database and builds the response sent back to the client.
5
PPA TMPONOECNS
The parts that make up a mobile app: interface controls on screens, objects with data and behaviour, event handlers that respond to the user, and libraries of ready-made code.
6
ULOGNAEA SV ITLDAGI
Analogue signals vary smoothly over a range; digital signals have fixed values like on/off (1/0). Systems convert between them, e.g. ADC at a sensor input, DAC at a speaker output.
7
OYLMNAA
A fault caused by redundant data: an update ______ leaves copies that disagree, an insertion ______ blocks adding data, and a deletion ______ loses other data when a record is removed.
8
LNNSIIOAMROAT
Splitting a table so repeated details move into their own table, linked back with a foreign key, so each fact is stored only once and redundancy is reduced.
9
EIGAL MEDNLPEVTEO
Building a solution in short repeating cycles (sprints), releasing working parts and adapting to user feedback and changing requirements.
10
ALELTRAWF VTEMPOENLDE
A method where each stage (requirements, design, build, test, release) is finished in fixed order before the next starts, with little change once done, so late changes cost more.
Answer Key
QCE Digital Solutions Unit 3 · Modules 15–119
1NTCOROL IEASHCMNM → control mechanism — Decides what a system does next. Open loop ignores the result (a timer); closed loop uses a feedback signal from the result (a thermostat).
2BWE CTPIALNPIAO → web application — Software run through a browser, made of server-side parts (web server, database server, server-side code) and client-side parts (browser, user device) that connect over the internet.
3AAASDETB VSRREE → database server — A computer or program that stores a database and answers queries sent by other programs, such as a web server, by returning the matching data while keeping the stored data protected.
4RISEDE-RSEV OCED → server-side code — Code that runs on the web server, not the browser. It handles a request, processes form data, queries the database and builds the response sent back to the client.
5PPA TMPONOECNS → app components — The parts that make up a mobile app: interface controls on screens, objects with data and behaviour, event handlers that respond to the user, and libraries of ready-made code.
6ULOGNAEA SV ITLDAGI → analogue vs digital — Analogue signals vary smoothly over a range; digital signals have fixed values like on/off (1/0). Systems convert between them, e.g. ADC at a sensor input, DAC at a speaker output.
7OYLMNAA → anomaly — A fault caused by redundant data: an update anomaly leaves copies that disagree, an insertion anomaly blocks adding data, and a deletion anomaly loses other data when a record is removed.
8LNNSIIOAMROAT → normalisation — Splitting a table so repeated details move into their own table, linked back with a foreign key, so each fact is stored only once and redundancy is reduced.
9EIGAL MEDNLPEVTEO → Agile development — Building a solution in short repeating cycles (sprints), releasing working parts and adapting to user feedback and changing requirements.
10ALELTRAWF VTEMPOENLDE → waterfall development — A method where each stage (requirements, design, build, test, release) is finished in fixed order before the next starts, with little change once done, so late changes cost more.