1. Which of the following firewalls destroys suspicious messages?

a) Medium-level security firewall

b) Proxy firewall

c) High-level security firewall

d) Low-level security firewall

2. Which of the following is a combination of two encryption keys?

a) Transposition key

b) Foreign key

c) Substitution key

d) Product key

3. Which key is used by an algorithm to scramble the data?

a) Substitution key

b) Product key

c) Transposition key

d) Primary key

4. New IT security technology

a) May create vulnerabilities and risks to confidential data contained in the accounting system

b) Are usually reliable enough to adequately safeguard accounting data

c) Is usually worth the investment

d) Is less vulnerable to cyberattacks