A company is deploying a critical application across two availability zones. They want to minimize the risk of a correlated failure where a single event takes down both zones. Which deployment practice is most effective?

Avoid placing all resources in the same zone and use zone-redundant services where available

Place all VMs in one zone and use a second zone only for backups

Use different VM sizes in each zone to avoid resource contention

Ensure the two zones are in different regions

What role does redundancy play in how availability zones provide fault tolerance?

Redundancy reduces the cost of running applications by sharing resources

Redundant resources are deployed across zones so that if one set fails, another can take over

Redundancy ensures that all zones have identical data, so no data is ever lost

Redundancy eliminates the need for backups because data is always available

A company is designing a new application and wants to use availability zones for fault tolerance. The application must have a Recovery Time Objective (RTO) of minutes and a Recovery Point Objective (RPO) of near zero. Which architecture best meets these requirements?

Single-zone deployment with locally redundant storage

Backup and restore from geo-redundant storage

Active-passive deployment with the passive copy in another region

Active-active deployment across two availability zones with synchronous replication

A company is deploying a three-tier application. The web tier is stateless and deployed across three zones. The application tier is stateful and deployed across two zones. The database tier uses a zone-redundant deployment. A failure occurs in Zone 1, which hosts one-third of the web tier, one-half of the application tier, and one replica of the database. What is the impact on the application?

The entire application becomes unavailable because the database replica in Zone 1 was the primary

The web tier continues to serve traffic, but the application tier may experience reduced capacity and some in-flight sessions may be lost

The application continues to run with no impact because all tiers have redundancy

The web tier becomes unavailable because it relies on the application tier in Zone 1

A company is designing a multi-region application for disaster recovery. They currently use availability zones within a single region for high availability. They want to add cross-region failover for disaster recovery. Which consideration is most important when combining these two techniques?

Cross-region failover eliminates the need for availability zones in the primary region

Availability zones in the primary region must be disabled when using cross-region failover

The application must be redesigned to be stateless before using cross-region failover

Cross-region replication typically uses asynchronous replication, so the RPO will be higher than within-region zone replication

Dell Data Protection and Management Foundations v2

Domain 2Objective 5

Explain Fault Tolerance Techniques - Application and Availability Zones DATA-PROTECTION-MANAGEMENT-FOUNDATIONS Practice Questions (Page 4)

Part of the Fault Tolerance Techniques domain, which accounts for 15% of the DATA-PROTECTION-MANAGEMENT-FOUNDATIONS exam.

21questions here

5free pages

5concepts

15%of the exam

Questions 16–20

16expert · hard
A company is deploying a critical application across two availability zones. They want to minimize the risk of a correlated failure where a single event takes down both zones. Which deployment practice is most effective?
Select an answer first
17foundation · easy
What role does redundancy play in how availability zones provide fault tolerance?
Select an answer first
18application · medium
A company is designing a new application and wants to use availability zones for fault tolerance. The application must have a Recovery Time Objective (RTO) of minutes and a Recovery Point Objective (RPO) of near zero. Which architecture best meets these requirements?
Select an answer first
19expert · hard
A company is deploying a three-tier application. The web tier is stateless and deployed across three zones. The application tier is stateful and deployed across two zones. The database tier uses a zone-redundant deployment. A failure occurs in Zone 1, which hosts one-third of the web tier, one-half of the application tier, and one replica of the database. What is the impact on the application?
Select an answer first
20expert · hard
A company is designing a multi-region application for disaster recovery. They currently use availability zones within a single region for high availability. They want to add cross-region failover for disaster recovery. Which consideration is most important when combining these two techniques?
Select an answer first

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