Serverless architecture allows companies to deploy code without managing the underlying infrastructure. This approach significantly reduces the time and expense involved in code deployment because developers can focus solely on writing code, while the cloud provider manages the servers, scaling, and maintenance.
Serverless computing also enables automatic scaling and pay-per-execution billing, which further optimizes costs.
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CompTIA Security+ SY0-701 Course Content: The course covers cloud technologies, including serverless architectures, which are highlighted as a method to streamline and reduce costs associated with code deployment.

User Behavior Analytics (UBA)is specifically designed to detectanomalous or suspicious behaviorsby users that may indicate insider threats. UBA toolsestablish a baseline of normalbehaviorfor users and alert security teams when deviations occur (e.g., accessing sensitive files at odd hours, downloading large volumes of data, etc.).
Malicious insiders often bypass perimeter defenses like firewalls or IDS/IPS systems because they arelegitimate users. UBA offersvisibility into internal behavior patterns, which is essential for detecting these threats.
Reference: CompTIA Security+ SY0-701 Objectives, Domain 2.2 - "Insider threats and behavioral analytics (e.g., UBA, UEBA)."

Detailed Explanation:SSH tunneling can secure the unencrypted protocol by encapsulating traffic in an encrypted tunnel. Segmentation isolates the legacy system, reducing the risk of unauthorized access.
Reference: CompTIA Security+ SY0-701 Study Guide, Domain 2: Threats, Section: "Compensating Controls for Legacy Systems".