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EMC D-ECS-DS-23 Exam Syllabus Topics:

EMC Dell ECS Design 2023 Sample Questions:

Question 1

How is XOR optimization implemented on an ECS geo-active replication group containing three sites?

A. Primary copy of chunk A on VDC1
XOR copy of chunk A on VDC2
A backup copy of chunk A on VDC3
B. Primary copy of chunk A on VDC1
Secondary copy of chunk A on VDC2
A consolidated copy of both chunks on VDC3
C. Primary copy of chunk A on VDC1
Primary copy of chunk B on VDC2
A consolidated copy of both chunks on VDC3
D. Primary copy of chunk A on VDC1
Primary copy of chunk B on VDC2
A replicated copy of both chunks on VDC3

Question 2

In ECS Solution Design, which practices are effective for monitoring and improving the performance of stateless applications?

A. Regularly updating the desktop backgrounds of ECS instances
B. Horizontal scaling based on load
C. Monitoring connection pool sizes
D. Implementing auto-scaling policies based on performance metrics

Question 3

What are the two considerations for designing ECS replication groups in an archive solution? (Select
2)

A. Global replication groups are mandatory in a two or more ECS VDC setup.
B. Fast ingest on EXF900 may speed up the replication process and reduce RPO.
C. WAN latency may create performance bottlenecks during remote reads.
D. Limit the number of replication groups to reduce indexing overhead.

Question 4

What two things must be considered when creating a bucket on an ECS cluster? (Select 2)

A. Buckets should be created at the VDC closest to the application accessing and updating the objects.
B. Buckets should be created with a unique name within a federation.
C. S3 buckets support NFS and Centera CAS data access.
D. Buckets can be accessed from any VDC belonging to the same replication group.

Question 5

In differentiating between protection configurations, which option provides the highest level of data durability for ECS object storage?

A. Encryption at rest only, without additional replication
B. Single-copy storage in one Availability Zone
C. Storing backups on physical media offsite
D. Data replication across multiple Availability Zones within a region

Solutions: