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Hitachi HITACHI DATA SYSTEMS CERTIFIED EXPERT -REPLICATION SOLUTIONS ARCHITECT Sample Questions:

1. A customer implements TrueCopy replication for an active OLTP database and users begin to complain about database response time. The customer is running Fiber Channel over DWDM and the peak write workload only consumes half of the available bandwidth on the link.
Which factor affects the database response time?

A) Cache configurations of the RCU and MCU do not match.
B) The distance between the sites is too great for Fiber Channel to maintain session
C) The distance between the sites introduces too much latency.
D) Insufficient MCU cache has activated inflow control.

2. What are two factors in determining the impact to host response time when replicating data using TrueCopy over Fiber Channel links? (Choose two.)

A) bandwidth available between sites
B) the speed of the disk drives
C) the distance between the sites
D) the speed of the Fiber Channel switch

3. A customer is planning to replicate 36 TB of data using asynchronous replication. What are two primary considerations for sizing the expected solution? (Choose two.)

A) Total number of IOPS for the environment
B) The percentage of writes for the environment
C) The amount of latency between the sites
D) Number of disk units installed at the secondary site

4. A customer has multiple related applications. The replicated LUNs for these applications must be consistent with each other. The customer experiences a link failure.
Which two methods will meet the customer's requirement? (Choose two.)

A) Use Hitachi Universal Replicator with journals to ensure consistency.
B) Create multiple consistency groups.
C) Use log shipping to enable roll forward to become consistent.
D) Create a single consistency group for all LUNs.

5. A customer is using a multi-target Three Data Center Delta Resync configuration with A as the primary copy, B as a TrueCopy copy, and C as a Hitachi Universal Replicator copy. The customer performs a planned outage at the primary facility, fails over, and begins running production from the synchronous copy (B).
What happens when the customer is ready to resume replication?

A) Copies A and C require a full initial copy.
B) Copies A and C can be resynchronized using an incremental copy.
C) Only the TrueCopy A copy can be resynchronized using an incremental copy.
D) Only the Hitachi Universal Replicator C copy can be resynchronized using an incremental copy.

Solutions: