ict Flashcards
what is cybercrime?
using a computer as a weapon to secure something illegal.
types of cybercrime
hacking,identity theft,blackmail, committing fraud, violationg privacy laws,stealing intellectual property
what is spam?
spam is unwanted, unsolicited digital communication sent out in bulk
how to identify what is spam?
suspicious sender, strange urls, miraculous products and promises and spelling errors.
what is malware?
malware is bad software
types of malware
viruses, worms, trojans, spyware, adware, ransomware
what is viruses?
infects other programs and can spread to other systems
what is worms?
worms cannot spread itself to other devices, it usually goes after known exploits
what is a trojan horse?
pretends to be a real program but is in fact malicious
what is spyware?
cybercriminals use spyware to monitor the activites of users
what is ransomware?
encrypt a device’s data and holds it for ransom until the hacker is paid to release it.
what is adware?
serves unwanted advertising
protection from viruses?
1.downloading an antivirus on your device.
2.running full scans frequently
3.keeping antivirus up to date.
protection from worms?
1.ensure devices are updated.
2.firewalls and email filtering gives protection.
protection from trojan horse?
1.never download software from an unknown source.
2.download software from safe sources.
protection from spyware?
1.antivirus software can help detect and remove spyware.
2.use anti-tracking browers
protection from ransomware?
1.practice cyber hygiene
2. never click on unsafe links
protection from adware?
keep your web browser clients updated
2.install an ad blocker
what is a flowchart?
a diagram that represents a process.
+
addition
-
subtraction
>
greater than
<
less than
> =
greater than equal to
<=
less than equal to
*
multiplication
/
division
what are the types of data?
float, string, integer, character and boolean
what does data types determine?
what kind of data an object can have .
what is integer data?
a number without a decimal
what is float data?
a number but it can have decimal places
what is character data?
a single letter or symbol
what is string data?
a collection of characters
what is boolean data?
true or false statements
what is the difference between process and input/output?
process is used to show that action that needs to be taken while input/output shows the steps that are needed.
what is a round rectangle or oval for?
used to show the start and end of a flowchart [stat/end]
what is a rectangle for?
used to show the action that needs to be taken [process]
what is a parallelogram used for?
used to show the steps that is needed [input/output]
what is the rhombus/diamond used for?
used to indicate if the outcome is no or yes. [decision]
