E20-027 Real Exam Questions

A company is planning to deploy synchronous remote replication between two sites over 13 MB/s ESCON links. The two sites are 50 miles apart. The workload profile of the application is as follows: - Peak work load = 3,000 I/Os per second - Read/Write Ratio = 70:30 - Write I/O block size = 8 KB - Current average response time = 5 milliseconds (ms) - 1 ms latency is added for every 125 miles If the delay per channel extender is 0.5 ms and one round trip (ESCON) equals four passes, what is the average response time of this solution?

A database is utilizing ten 9 GB, RAID 1 devices. A cascade three-site remote replication solution that includes synchronous and extended distance consistent PIT has been selected for disaster recovery. All devices involved in remote replication will have RAID 1 protection. What is the total amount of raw capacity that is required for this solution?

Refer to the Exhibit. In a cascade three-site remote replication, the cycle time between the Bunker and Remote targets is 30 seconds and data transfer takes 10 seconds. In the event of a regional disaster, what is the worst-case RPO provided by the Remote target?

What is a key reason for deploying a three-site remote replication solution?

Refer to the Exhibit. You are designing a new backup and recovery solution. You have determined that a disk- aware backup-to-disk solution will be used as the primary destination for backups. Once backups reach a specific retention period on disk, they will be moved to tape. To satisfy 90% of the e-mail restore requests from disk, what is the minimum required retention period?