An environment has a dual-stack infrastructure in an active-active configuration in two separate data centers. Which of the following best describes replication between the two sites?
A.
Data is moved constantly from the hot site to the warm site.
B.
Data is replicated every 15 minutes from one site to the other.
C.
Data is moved from one site to the other once per day.
D.
Data is synchronized in real time across the sites.
E.
Data is moved twice a day from Site A to Site B, and then from Site B to Site A.
Explanation:
A dual-stack infrastructure in an active-active configuration means:
Both data centers are online and operational simultaneously.
Data must be continuously synchronized between the two sites to maintain consistency.
Why Option D is Correct:
✔ "Data is synchronized in real time across the sites." – This is the best definition of active-active replication, where changes made at either site are instantly reflected in the other to ensure high availability and load balancing.
D. Data is synchronized in real time across the sites.
In an active-active configuration with dual-stack infrastructure across two separate data centers, the best practice for replication is to synchronize data in real-time across the sites. Real-time synchronization ensures that changes made in one data center are immediately replicated to the other data center, maintaining consistency and availability of data across both sites.
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