CompTIA Security+

A security analyst wishes to increase the security of an FTP server. Currently, all traffic to the FTP server is unencrypted. Users connecting to the FTP server use a variety of modern FTP client software.
The security analyst wants to keep the same port and protocol, while also still allowing unencrypted connections. Which of the following would BEST accomplish these goals?

Which of the following explains why vendors publish MD5 values when they provide software patches for their customers to download over the Internet?

Refer to the following code:

Which of the following vulnerabilities would occur if this is executed?

Multiple employees receive an email with a malicious attachment that begins to encrypt their hard drives and mapped shares on their devices when it is opened.
The network and security teams perform the following actions:
✑ Shut down all network shares.
✑ Run an email search identifying all employees who received the malicious message.
✑ Reimage all devices belonging to users who opened the attachment.
Next, the teams want to re-enable the network shares. Which of the following BEST describes this phase of the incident response process?

An organization has determined it can tolerate a maximum of three hours of downtime. Which of the following has been specified?