DEA-1TT5 Replication Technologies 2

Question 1

Which replication mode acknowledges a write after the data is written to a local persistent buffer but before the remote site confirms receipt?

Accepted Answer

Semi-synchronous replication

Answer

Asynchronous replication

Answer

Synchronous replication

Answer

Snapshot-based replication

Question 2

What does 'delta replication' refer to in storage systems?

Accepted Answer

Replicating only the changed blocks or files since the last replication cycle

Answer

Replicating a full copy of all data every day during a maintenance window

Answer

Replicating data to a geographically distant tertiary location

Answer

Replicating metadata and directory structures without the actual data blocks

Question 3

In a fan-in replication topology, multiple source systems send their data to:

Accepted Answer

A single consolidated target system

Answer

Multiple independent target systems, one per source

Answer

A cascade chain of secondary and tertiary systems

Answer

Bi-directional peer systems that also act as sources

Question 4

What is the purpose of a 'replication consistency group'?

Accepted Answer

A set of volumes replicated together to maintain write-order consistency across all members

Answer

A group of storage arrays that share a common replication license

Answer

A collection of replication policies that share the same RPO target

Answer

A cluster of target systems that collectively store replicated data

Question 5

Which replication mode is best suited for long-distance replication where network latency is a significant factor?

Accepted Answer

Asynchronous replication

Answer

Synchronous replication

Answer

Semi-synchronous replication

Answer

Write-through replication

Question 6

What is 'cascade replication' in a multi-site storage architecture?

Accepted Answer

Data is replicated from Site A to Site B, and then from Site B onward to Site C

Answer

Multiple sources simultaneously replicate to a single consolidated target

Answer

Replication that triggers automatically only when storage utilization exceeds a threshold

Answer

Replication that uses multiple parallel network paths for load balancing

Question 7

What is a 'replication session' in storage system terminology?

Accepted Answer

A logical connection established between source and target volumes for ongoing data replication

Answer

A scheduled maintenance window during which replication is allowed to run

Answer

A periodic report summarizing replication performance and error statistics

Answer

A group of storage administrators assigned to manage the replication infrastructure