Terabit DDoS Protection System (DPS) is designed to protect key network services by doing what before outages?

• A. Detecting and blocking external threats such as DDoS before costly service outages
• B. Encrypting traffic
• C. Caching content
• D. Replacing routers

Answer: (A)

Proactive protection against denial-of-service is the focus here: the system is designed to detect and block external threats such as DDoS before they cause service outages. It sits in the path of traffic and, in real time, analyzes patterns, enforces filters, and scrubs or drops malicious traffic so legitimate users can reach key network services without disruption. This preemptive filtering prevents outages by stopping the attack traffic before it overwhelms resources.

The other options don’t fit because encryption protects confidentiality, caching optimizes performance by storing content closer to users, and replacing routers is a hardware change rather than a protective measure against DDoS attacks.