Which of the following would effectively verify the originator of a transaction?

Which of the following would effectively verify the originator of a transaction?

When using a digital signature, the message digest is computed:

When using a digital signature, the message digest is computed:

When reviewing a digital certificate verification process, which of the following findings represents the MOST
significant risk?

The MOST effective control for reducing the risk related to phishing is:

The MOST effective control for reducing the risk related to phishing is:

The GREATEST risk posed by an improperly implemented intrusion prevention system (IPS) is:

The GREATEST risk posed by an improperly implemented intrusion prevention system (IPS) is:

An IS auditor is reviewing a software-based firewall configuration. Which of the following represents the
GREATEST vulnerability? The firewall software: