Protecting IT Systems and Data

What is the primary function of antivirus software in protecting IT systems?

• To increase the speed of the computer

• To detect and remove malicious software

• To improve internet connectivity

• To manage user accounts

Which technique is used by antivirus software to identify new, previously unknown viruses?

• Virus signatures

• Heuristic techniques

• Network filtering

• User authentication

What is the role of a firewall in network security?

• To store data securely

• To filter incoming and outgoing network traffic

• To provide user authentication

• To encrypt data

Which of the following is a disadvantage of biometric authentication?

• It is easy to forget

• It can be expensive to implement

• It requires frequent updates

• It is not secure

What is a common advantage of using two-step/multi-factor verification (MFA)?

• It is faster than single-factor authentication

• It provides an additional layer of security

• It requires no internet connection

• It is cheaper than other methods

Which of the following is an example of knowledge-based authentication?

• Fingerprint scanning

• Security tokens

• Question and response pairs

• Digital signatures

What is the purpose of a CAPTCHA in online security?

• To encrypt data

• To verify human users

• To store passwords securely

• To filter network traffic

Which of the following is a best practice for password complexity?

• Use only lowercase letters

• Use a combination of letters, numbers, and symbols

• Use your birthdate

• Use a single word

What is a digital signature primarily used for?

• To encrypt files

• To verify the authenticity of a document

• To store data

• To filter emails

Which of the following is a characteristic of a software firewall?

• It is a physical device

• It is installed on individual computers

• It requires no configuration

• It cannot be updated