CompTIA CySA+ (CS0-003) — Question 279

After an upgrade to a new EDR, a security analyst received reports that several endpoints were not communicating with the SaaS provider to receive critical threat signatures. To comply with the incident response playbook, the security analyst was required to validate connectivity to ensure communications. The security analyst ran a command that provided the following:

ComputerName: comptia007 -

RemotePort: 443 -

InterfaceAlias: Ethernet 3 -

TopTestSucceeded: False -

Which of the following did the analyst use to ensure connectivity?

Answer options

• A. nmap
• B. tnc
• C. ping
• D. tracert

Correct answer: B

Explanation

The correct answer is B, as 'tnc' (Test-NetConnection) is specifically designed to test network connectivity, including the ability to connect to a specific port. The other options, while useful for testing connectivity, do not provide the same level of detail regarding port status and are not as suitable for this specific validation.