Andrew Belegrinos

Andrew Belegrinos

Member since
@andrew-

N7 Co-founder. IB-DP-CS Teacher at Preshil

Consider the following pseudocode:
VALUES = [ ] loop I from 0 to 3 VALUES[I] = ARRAY[I][0] loop J from 1 to 2 if ARR[I][J] < VALUES[I] then VALUES[I] = ARR[I][J] end if end loop end loop output VALUES
Choose the output yielded when the above algorithm is correctly applied to the 2D array given below:
Question Image
(a).
[4, 11, 18, 7]
(b).
[-1, -10, -7, 1]
(c).
[ -10, -7, -1]
(d).
[18, 5, 11]
Multiple Choice1 MarkCommunity
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Andrew Belegrinos
Consider the following array of Cartesian co-ordinates called POINTS.
POINTS = [(3,7),(5,11),(1,2),(4,9)]
Consider the following pseudocode which draws a path connecting each point contained in the array POINTS.
[2]
drawLine((3,7),(5,11)) drawLine((5,11),(1,2)) drawLine((1,2),(4,9))
Rewrite the pseudocode above to achieve the same functionality both iteratively and more generally, such that POINTS may contain any four coordinates, each of the form (a, b).
Short Answer2 MarksCommunity
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Andrew Belegrinos
Define the term heuristics.
[2]
Short Answer2 MarksCommunity
27 Uses27 Views2 Likes
Andrew Belegrinos
(a).
Given a short array of integers of length 2 called myShortArray, write pseudocode to determine and output the biggest and second biggest number.
[3]
(b).
Given an array of integers of length 5 called myLongerArray, write pseudocode to determine and output the biggest number it contains.
[3]
(c).
Given an array of integers of length 7 called myArray, write pseudocode to output the sum of the two biggest integers it contains. The algorithm should handle both negatives values and repeated values.
[5]
Extended Response11 MarksCommunity
44 Uses49 Views2 Likes
Andrew Belegrinos
Write an algorithm which outputs every item of a 2D array that is 100 by 100 elements in size
[3]
Short Answer3 MarksCommunity
39 Uses27 Views1 Like
Andrew Belegrinos
Input the dimensions of a rectangle then print both area and perimeter.
[4]
Short Answer4 MarksCommunity
17 Uses22 Views0 Likes
Andrew Belegrinos
Input 3 numbers and if all three numbers are different then output "distinct", otherwise output "not distinct".
[3]
Short Answer3 MarksCommunity
22 Uses18 Views0 Likes
Andrew Belegrinos
Input 7 numbers and use a loop to output their total.
[4]
Short Answer4 MarksCommunity
28 Uses28 Views2 Likes
Andrew Belegrinos
A programmed microcontroller in a X iterates. Bob really like his name. He would love a way to be able to see is name over and over again. Bob likes his name so much, he decided that he wants to print it out his name 1000 times on a computer screen! Which of the three concepts we have learned in Python so far (sequence, selection, iteration) should Bob use? Explain why!
(a).
Sequence
(b).
Selection
(c).
Iteration
(d).
No Text Provided...
Multiple Choice1 MarkShared
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Andrew Belegrinos
Which of the following correctly describes a foreign key?
(a).
An attribute that forms part of a composite primary key to uniquely identify a record in a table.
(b).
An attribute that uniquely identifies a record in a relational database table.
(c).
An attribute that is copied to an index data structure in order to optimise query efficiency for those rows / records associated with the copied attribute.
(d).
An attribute that corresponds to the value of a primary key in another table for the purpose of creating a link between the two tables.
Multiple Choice1 MarkCommunity
6 Uses7 Views2 Likes
Andrew Belegrinos
Define the term population.
[2]
Short Answer2 MarksCommunity
1 Use4 Views1 Like
Andrew Belegrinos
Outline one advantage and one disadvantage of Tournament Selection when compared to Truncation Selection.
[4]
Short Answer4 MarksCommunity
2 Uses6 Views1 Like
Andrew Belegrinos
Given a simple traffic light with a pedestrian crossing button forms an open loop system, outline one way in which traffic light operations may return to normal following a pedestrian crossing event.
[1]
Short Answer1 MarkCommunity
11 Uses11 Views1 Like
Andrew Belegrinos
In an effort to better understand city traffic flows, traffic lights were upgraded to include CCTV cameras.
Discuss the social implications of monitoring traffic using CCTV.
[3]
Short Answer3 MarksCommunity
40 Uses32 Views1 Like
Andrew Belegrinos
The Medicare Levy Surcharge (MLS) is a 1-2% levy paid by Australian taxpayers who do not have private hospital cover and who earn above a certain income. The current income threshold is AUD$90,000 for singles and AUD$180,000 for couples / families (2020-2021 financial year). Once Australians earn above these thresholds within a financial year, they must pay the MLS. Given an annual income called INCOME, a boolean flag for having private hospital cover or not called PRIVATE and another boolean flag for being single or not called SINGLE, write pseudocode to output True if eligible for the MLS or False otherwise. For example, a single (SINGLE = true) person who doesn’t have private health insurance (PRIVATE = false) and is earning AUD$120,000 (INCOME = 120000) annually must pay the MLS (output True)
[7]
Short Answer7 MarksCommunity
12 Uses14 Views0 Likes
Andrew Belegrinos
Discuss, with respect to two different types of sensors, how a medical control system used to monitor hospital patient vital signs and maintain a constant ambient room temperature might function. Any concerning measurements automatically alert medical staff.
[7]
Short Answer7 MarksCommunity
16 Uses12 Views0 Likes
Andrew Belegrinos
Pablo is concerned about whether or not the MONS architecture is sufficiently scalable and can remain efficient as the number of users increases. Evaluate Pablo’s concern around the ability for the MONS network to handle a rapidly increasing number of users.
[10]
Short Answer10 MarksCommunity
6 Uses8 Views1 Like
Andrew Belegrinos
Given the following pseudocode snippet and possible inputs for X and Y, what are the correct boolean values for the corresponding outputs M and N in the table below? if X AND NOT Y then output TRUE else output FALSE end if +-------+-------+----------+ | X | Y | OUTPUT | +-------+-------+----------+ | FALSE | FALSE | M | | FALSE | TRUE | N | | TRUE | FALSE | TRUE | | TRUE | TRUE | FALSE | +-------+-------+----------+
(a).
M = FALSE and N = FALSE
(b).
M = FALSE and N = TRUE
(c).
M = TRUE and N = FALSE
(d).
M = TRUE and N = TRUE
Multiple Choice1 MarkCommunity
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Andrew Belegrinos
An online book store is comprised of several elements, including typical header, sidebar and footer components.
(a).
Publishers wish to place a banner on the site to advertise their best seller. Given many shoppers access the website on their mobile phone, suggest a sensible location on the website in order to maximise sales - justify your recommendation.
[2]
(b).
Identify two pieces of information that, by convention, would appear in the footer of the website
[2]
A search form in the website sidebar is used to help customers find specific books. The web form is coded as follows: <head> <script> function validateForm() { var x = document.forms["myForm"]["title"].value; if (x == "") { alert("Title must be filled out"); return false; } } </script> </head> <body> <h2>Book Search Form</h2> <form name="myForm" action="/searchBooks.php" onsubmit="return validateForm()" method="post"> <select name="format"> <option>Paperback</option> <option>Hardback</option> </select> Title: <input name="title" type="text" /><br /> Author: <input name="author" type="text" /><br /> Publisher: <input name="publisher" type="text" /><br /> <input type="submit" value="Search"/> </form> </body>
(c).
Identify the two client side languages used in the above example
[2]
(d).
Describe the sequence of actions carried out to complete a successful search
[3]
Extended Response9 MarksShared
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Andrew Belegrinos
Define the term Syntax
[1]
Short Answer1 MarkCommunity
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Andrew Belegrinos