Web Security and Data Validation
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Questions and Answers

What is the primary advantage of using HTTPS over HTTP, in terms of data transfer?

More secure in data transfer

What is the purpose of validation in data entry?

To ensure data entered is reasonable and follows defined rules

What type of validation checks if the data entered is between a given range?

Range Check

What method of verification involves visually checking the original and entered data for errors?

<p>Visual Checking</p> Signup and view all the answers

What is the purpose of a check digit in data entry?

<p>To use an algorithm to create a digit or letter from an ID number, and add it to the end for verification</p> Signup and view all the answers

What type of validation checks if the data entered conforms to a specific format, such as a date in dd/mm/yyyy?

<p>Format Check</p> Signup and view all the answers

What are two benefits of online marketplaces for buyers?

<p>Buyers can compare products from many different sellers, and receive discounts for large orders.</p> Signup and view all the answers

How do online marketplaces benefit sellers?

<p>Sellers can save time and money that would have been used to set up a large website, on marketing the product, and they can test products by putting them up for sale and checking if they sell well.</p> Signup and view all the answers

What is the main difference between online marketplaces and online stores?

<p>Online marketplaces allow multiple sellers to sell products, whereas online stores are individual websites where customers can order products.</p> Signup and view all the answers

What are the first two steps in the online checkout process?

<p>The user is asked if they want to sign in or register a new account, and if they select to register, they are asked to enter a username and password.</p> Signup and view all the answers

What information is required to complete the registration process during online checkout?

<p>The user is asked to enter a username, password, contact details, shipping address, and billing address.</p> Signup and view all the answers

What is the final step in the online checkout process?

<p>The order is confirmed and the transaction is completed.</p> Signup and view all the answers

What is the primary benefit of using supercomputers in drug research?

<p>High computational power to run numerous models and predict side effects</p> Signup and view all the answers

How have supercomputers impacted the field of genetic analysis?

<p>Reduced the time taken to perform calculations from months to minutes</p> Signup and view all the answers

What is the primary application of supercomputers in the field of quantum mechanics?

<p>Processing large numbers of calculations with high accuracy</p> Signup and view all the answers

What type of data is used in weather forecasting, and how is it processed?

<p>Numerous variables such as humidity, temperature, and rainfall data from sensors and weather stations; processed through complex calculations to compare and predict the weather</p> Signup and view all the answers

What is the primary goal of using supercomputers in climate research?

<p>To model and mimic the process of climate change using complex mathematical equations</p> Signup and view all the answers

What is a common characteristic of the fields that use supercomputers, such as drug research, genetic analysis, and weather forecasting?

<p>They require high computational power to process large amounts of data</p> Signup and view all the answers

What type of sensor is used to measure room temperature in an air conditioning system?

<p>Temperature sensor</p> Signup and view all the answers

What happens when the room temperature is lower than the preset value in an air conditioning system?

<p>A signal is sent to an actuator to turn off the fans.</p> Signup and view all the answers

What type of sensor is used to detect human bodies in a burglar alarm system?

<p>Infrared sensors</p> Signup and view all the answers

What happens when one of the sensors in a burglar alarm system sends a value above the accepted preset levels?

<p>A signal is sent to the police to alert them, and an alarm is sounded.</p> Signup and view all the answers

What type of sensor is used to detect traffic flow in a traffic control system?

<p>Electromagnetic sensors/induction loops and radar signals</p> Signup and view all the answers

What happens when the car count in one direction is higher than the preset value in a traffic light system?

<p>That lane is given priority in the next sequence.</p> Signup and view all the answers

What type of sensor is used to detect if a car is present in a car park barrier system?

<p>Induction loop/electromagnetic sensors and ultrasonic sensors</p> Signup and view all the answers

What happens when the induction loop sensor detects a car in a car park barrier system?

<p>A signal is sent to the processor, which compares the signal to a pre-set value.</p> Signup and view all the answers

How are pedestrian locations taken into account in a traffic light system?

<p>Pedestrian locations are taken into account when a pedestrian clicks the button at the side.</p> Signup and view all the answers

What happens at the end of each sequence in a traffic light system?

<p>The process is repeated, resulting in sequence timings changing after each sequence.</p> Signup and view all the answers

What are some of the advantages of using CAD software in construction?

<p>Faster than traditional drawing, easier to make changes and fix errors, accurate if done properly, and files can be easily saved and used again.</p> Signup and view all the answers

What are some of the limitations of using computer simulations?

<p>Expensive to buy and maintain, need to retrain personnel, may not cover all scenarios, formula and functions used may not be accurate, and pilots/drivers might be overconfident in real-life situations.</p> Signup and view all the answers

What is the purpose of using simulations in pilot training?

<p>To help pilots get used to flying a plane in a safe and controlled environment, reducing the risk of accidents and minimizing costs.</p> Signup and view all the answers

What are some of the ways in which simulations can recreate real-life scenarios?

<p>By recreating extreme weather conditions and using lifelike components, such as cockpits and hydraulic systems.</p> Signup and view all the answers

What is one advantage of using 3D views and different viewing angles in CAD software?

<p>Producing end designs using 3D printers and blueprints using plotters.</p> Signup and view all the answers

What is one limitation of relying solely on computer simulations?

<p>Pilots and drivers might become overconfident in their abilities when faced with real-life situations.</p> Signup and view all the answers

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