E20-805 全真模擬試験 DEMO

問題11: Topic 1, Scenario 27
Refer to the Exhibit.
A financial institution is implementing a disaster recovery (DR) solution for their key Oracle databases and
other critical data. RecoverPoint has been chosen as the replication technology to use for the DR solution.
For maximum protection, the replication uses CLR for all Oracle systems; CRR is used for all other data.
The production site uses Sun servers for the Oracle servers and Microsoft Windows Server 2008 hosts for
all other data repositories. Storage arrays for the Oracle servers are Symmetrix arrays. All other data and
business departments store their data on CLARiiON CX4 arrays.
Recently, the human resources and finance departments were migrated to the DMX to enhance security
and performance requirements.
This company also plans to bring in a new acquisition with AIX and VMware servers in the next six months.
The AIX servers will be placed on DMX storage and the VMware servers will be placed on CLARiiON
storage. Both are slated for CDP protection.
The DR site is located 2,500 km away from the production site. A dedicated T3 WAN link runs at 44 Mb/s.
Management and replication traffic will use separate VLANs. Each site contains eight RecoverPoint
appliances (RPAs) to maximize the performance and fault-tolerance business requirements. SANTap is
used for all Oracle splitting, and CX splitters are used for all other data.
To support the actual replication needs, 12 group sets were created to support the consistency within the
Oracle consistency groups. The policies on these sets include an RPO of 15 minutes.
The remainder of the data uses 54 consistency groups with an RPO of two hours.
1.What should be done to improve the performance of the WAN link for replication?
A. Enable QoS for the VLAN with RecoverPoint traffic
B. Set the link speed on the RPA to "max throughput"
C. Enable QoS on the Oracle consistency groups
D. Configure EtherChannel Link Aggregation for use with the WAN link
正解: A