Explanation
A split-tunnel VPN is a VPN feature that allows remote users to access network resources while only redirecting necessary traffic through the VPN tunnel. A split-tunnel VPN enables users to choose which applications or websites to secure with the VPN and which to connect normally through the internet. This can improve performance, conserve bandwidth, and avoid compatibility issues with some services that depend on the user's location. A split-tunnel VPN can also allow users to access local devices or resources that are not accessible through the VPN.

A CNAME (Canonical Name) record is a type of DNS (Domain Name System) record that maps an alias name to a canonical or true domain name. For example, a CNAME record can map blog.example.com to example.com, which means that blog.example.com is an alias of example.com. A CNAME record is useful when you want to point multiple subdomains to the same IP address, or when you want to change the IP address of a domain without affecting the subdomains1.

Ransomware is a type of malware that encrypts user data and demands a ransom for its decryption. Ransomware can prevent users from accessing their files and applications, and cause data loss or corruption. A proper backup implementation is essential to recover from a ransomware attack, as it can help restore the encrypted data without paying the ransom or relying on the attackers' decryption key. Reference: https://www.comptia.org/blog/what-is-ransomware

Explanation
When a DHCP client is connected to a network and no DHCP server is available, the client can automatically configure a link-local address in the 169.254.0.0/16 range using the Automatic Private IP Addressing (APIPA) feature. So, the correct answer is option B, 169.254.1.128. This is also known as an APIPA address.
Reference: CompTIA Network+ Study Guide, Exam N10-007, Fourth Edition, by Todd Lammle (Chapter 4:
IP Addressing)