IGCSE Computer Science Paper-1: Specimen Questions with Answers 125 - 126 of 164

Explanation

There are many ways by which criminals can get Debit/Credit Card Data:

i) Internal Skimming Devices: Internal Skimming Devices can be placed inside the terminals of an ATM or at gas pump stations. The messages get intercepted on the data lines.

ii) Stealing card details through Scam Calls: Criminals call up the card holders and try to get the security details in the name of bank verification and data updation process.

iii) By sending Phishing Links on mails: The cyber criminals keep on sending suspicious and phishing links to customers over mail ids in the name of fake and bogus advertisements. On clicking or visiting such links the user’s important information can be accessed by the criminals.

iv) Greeting card scams: These are old Internet scams used by malicious actors to inject malware and harvest users’ most valuable data. Clicking on such mails malicious softwares get downloaded and installed on our operating system.

Explanation

CAD is an abbreviation for ‘computer aided design’. CAD refers to the use of computer software in the design of things such as cars, buildings, and machines.

Advantages of CAD are:

i) The ability to producing very accurate designs.

ii) Drawings can be created in 2D or 3D and rotated.

iii) CAD eliminates tedious manual editing by providing a variety of editing tools.

iv) Using CAD, the size and resolution of your drawing can be changed as per the needed.