Practice Test 4 | Google Cloud Certified Professional Cloud Architect | Dumps | Mock Test
Your customer needs a dedicated System with MongoDB and 2 replicas. He also wants maximum availability and protection against failures and interruptions for maintenance/ updates to the instances.
The Database operates only in one US region and is actively queried and updated 24/7. So, you cannot select a comfortable maintenance Window.
What do you advise?
A. Use an internal load balancing Service with a Managed Instance Group and Regional persistent disks
B. Use a 3rd party MongoDB Managed Service like MongoDB Atlas
C. Implement Live Migration and use persistent regional SSDs
D. Use internal TCP/UDP Load Balancing with local SSD disks
Correct Answer – B
Option A is incorrect. A load balancer with MIG will provide scalability with an inbuilt feature of Live Migration if needed. But it is not as optimized response as compared to a managed service
Option B is correct. The requirement is to have a dedicated System. MongoDB Atlas provides the same. MongoDB Atlas provides customers a fully managed service on Google’s globally scalable and reliable infrastructure. Atlas allows you to manage your databases easily with just a few clicks in the UI or an API call, is easy to migrate to, and offers advanced features such as global clusters for low-latency read and write access anywhere in the world.
Option C is incorrect. Live migration is not an option but an inbuilt feature provided by Google.
Option D is incorrect. A DB Instance, even if NoSQL, cannot scale in a simple way. In case of failover, it is likely to have inconsistencies and loss of services. In addition, local SSD disks are really fast but they persist only until the instance is stopped or deleted. Definitely not according to the requirements.
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