How many Domain Controllers are in the COMPOSE environment?

• A. Two
• B. One
• C. Three
• D. Four

Answer: (A)

This question focuses on how many Domain Controllers are used to provide reliable authentication and directory services in an Active Directory environment like COMPOSE. Having two Domain Controllers is the standard approach for redundancy: if one DC goes down, the other can still authenticate users and serve directory requests, keeping the system available. Domain Controllers replicate AD data between themselves, so the second DC has up-to-date information and can take over seamlessly. Using two also allows load distribution so login and directory queries don’t overwhelm a single server.

Choosing one would create a single point of failure—if that DC is unavailable, authentication and directory access fail. More than two is typically unnecessary for a standard COMPOSE setup and adds extra complexity and resources without proportional benefit for a small test environment.