The wildlife camera program stores an image filename, date and reserve zone after each photograph is taken. A ranger runs a command that reads the log file ...
Question 1 Report
The wildlife camera program stores an image filename, date and reserve zone after each photograph is taken. A ranger runs a command that reads the log file and displays only records from zone C. The ranger may enter a lower-case c even though the file uses an upper-case C. The program is being tested before the cameras are installed in remote woodland.
(a) State one test datum for the zone input that would test case handling. [1]
(b) Explain how converting the entered zone to upper case can improve the search. [2]
Fig. 1 shows a recycling kiosk at a community centre. A user scans a barcode, and the program displays the material type and sends a message to the correct bin mechanism. At closing time, a subroutine writes the number of items of each type to a text file. The operator needs a clear output if the barcode cannot be found in the lookup file.
(a) State the input device used to enter the barcode. [1]
(b) Explain why the lookup file is read rather than opened for writing during normal use. [2]
(c) When no matching code is found, state one suitable output. [1]
Answer Details
Wildlife-camera program
- A suitable datum for testing case handling is lower-case
c. [1] - Converting the entered zone to upper case changes
ctoC, matching the format used in stored records. This means a valid record is not missed solely because of letter case. [2]
Recycling kiosk
- The barcode is entered using a barcode scanner. [1]
- The lookup file is read because the program needs its existing material-code data for comparison. Opening it for writing could overwrite or alter the lookup data. [2]
- If no code matches, a suitable output is an on-screen error message such as
Barcode not found. A sound or indicator light is also acceptable. [1]
Download The App On Google Playstore
Everything you need to excel in your exams
