VCAA Computer Science

VCAA Computer Science

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The Victorian Curriculum and Assessment Authority (VCAA) is a global education leader which provides high quality curriculum and assessment for a number of study designs, including the Victorian Certificate of Education (VCE) curriculum. Algorithmics and Applied Computing questions and tests are managed by N7 Education.

Lenny connects to the internet via a public unsecured wireless network to shop online. He creates a new account at a store and makes a purchase with a new credit card that has never been used. Later that day, he discovers unauthorised transactions on his credit card. What has happened to Lenny may be an example of
(a).
a data breach.
(b).
social engineering.
(c).
cross-site scripting.
(d).
a man-in-the-middle attack.
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VCAA Computer Science
Which one of the following statements best describes a characteristic of the associative array data structure?
(a).
Associative arrays have integer indexes.
(b).
Elements stored in associative arrays are ordered.
(c).
Elements of associative arrays are composed of key value pairs.
(d).
Associative arrays are used when several different data types need to be stored together as a field.
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The best sequence of tests when validating data is
(a).
type, existence then range.
(b).
range, existence then type.
(c).
range, type then existence.
(d).
existence, type then range.
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Consider the following incomplete data dictionary for the design of a security system’s software solution.
Question Image
The data types for ‘door_closed’ and ‘accessed’ are respectively
(a).
Boolean and integer.
(b).
character and integer.
(c).
Boolean and floating point.
(d).
character and floating point.
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[5, 6, 2, 11, 3, 0, 8] How many swaps will a selection sort algorithm carry out on the array above?
(a).
3
(b).
5
(c).
7
(d).
11
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To assess the effectiveness of a project plan, one should assess the project plan
(a).
against the project’s scope and timeline.
(b).
by applying relevant usability testing strategies.
(c).
by applying relevant software auditing strategies.
(d).
against the evaluation criteria developed in the design stage.
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A characteristic of an efficient software solution includes the
(a).
usability of the solution.
(b).
speed of processing.
(c).
accuracy of a calculation.
(d).
readability of a screen layout.
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Which one of the following would be considered an information system goal?
(a).
to decrease the time taken to create resupply orders by 50%
(b).
to identify three low-selling products to highlight for sales each month
(c).
to improve communication with customers by cutting the time taken to reply to within 24 hours
(d).
to manage accounts with suppliers more efficiently by using a digital warehouse system
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State two purposes of using internal documentation when programming. For each purpose, explain how a naming convention would be useful.
[4]
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A software development company wants to test the usability of an application it is developing that will connect senior citizens with local council services.
(a).
State the purpose of usability testing and explain how it is different from functional testing.
[2]
(b).
To save money, the company is considering conducting usability testing using its own employees. Explain why this is not a good idea
[2]
(c).
The landing page of the application will have the following menu
[2]
Question Image
Suggest one method that could be used to gather qualitative data and one method that could be used to collect quantitative data when conducting usability testing on this landing page.
Sourced: VCE Applied Computing, Software Development 2022 Exam - Section B, Question 5
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VCAA Computer Science
A functional requirement for a software solution that collects the contact details of customers who dine at a restaurant could be
(a).
saving customer data to a file.
(b).
that the solution can be used on multiple devices.
(c).
that the solution can fail to take an order no more than once a month.
(d).
that the restaurant’s customers should be able to easily enter their details into the solution.
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