Protecting digital systems 1 (Edexcel GCSE Computer Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the main principle behind defence-in-depth security strategy?
What is the main principle behind defence-in-depth security strategy?
Creating multiple layers of security
Where does a firewall sit in a network?
Where does a firewall sit in a network?
Between internal network and internet
What type of network traffic do firewalls monitor?
What type of network traffic do firewalls monitor?
Both incoming and outgoing traffic
How do firewalls decide what data to allow through?
How do firewalls decide what data to allow through?
Using pre-defined rules
How does traditional anti-malware detect threats?
How does traditional anti-malware detect threats?
By scanning files against a database
What is the main weakness of signature-based anti-malware detection?
What is the main weakness of signature-based anti-malware detection?
New malware is constantly being created
What does heuristic analysis in anti-malware look for?
What does heuristic analysis in anti-malware look for?
Suspicious behaviors rather than signatures
What is a sandbox in dynamic heuristic analysis?
What is a sandbox in dynamic heuristic analysis?
A virtual environment for testing files
What does encryption do to data?
What does encryption do to data?
Transforms it into scrambled format
How many keys does symmetric encryption use?
How many keys does symmetric encryption use?
A single shared key
What two keys does asymmetric encryption use?
What two keys does asymmetric encryption use?
Public and private keys
Why is asymmetric encryption more secure than symmetric?
Why is asymmetric encryption more secure than symmetric?
Private key never needs to be shared