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EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

1. You are assigned to design a storage solution for a customer's Oracle OLTP environment. The current configuration has performance issues. Users have complained about slow response.
What knowledge about a typical Oracle OLTP workload will help in the redesign of the storage environment so that it runs more optimally?

A) Database tables, indexes, and redo logs are all characterized by a large number of
sequential I/Os.
B) Database tables and indexes are characterized by a large number of random I/Os.
Redo logs are characterized by a large number of sequential I/Os.
C) Database tables, indexes, and redo logs are all characterized by a large number of
random I/Os.
D) Redo logs are characterized by a large number of random I/Os.
Database tables and indexes are characterized by a large number of sequential I/Os.

2. You are designing an SRDF/S solution. Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use. The workload profile is as follows:
Total I/Os per second = 30,000
Read block size = 4 KB
Write block size = 4 KB
Writes = 30%
How many OC3 links should be recommended?

A) 4
B) 6
C) 8
D) 2

3. You are designing an SRDF/S solution. The workload profile is:
Total I/Os per second = 10000
Write % = 25
Read block size = 8 KB
Write block size = 8 KB
Network bandwidth can be purchased in increments of single T3 (45 Mb/s) links. Data compression is not in use. How many T3s links would you recommend?

A) 4
B) 6
C) 8
D) 2

4. Your customer is interested in using Timefinder/Snap. You have determined there needs to be fifty save devices to handle the change rate for 125 virtual devices. The Save devices and the virtual devices are the same size. What should be recommended if source volume performance is a consideration?

A) Recommend using RAID6 for the Save devices
B) Recommend using Timefinder/Clone
C) Spread the Save devices across as many DAs and disks as possible
D) Allocate enough disks to handle the change rate

5. You are designing an SRDF/S solution. The workload profile is:
Total I/Os per second = 30000
Write % = 20
Read block size = 4 KB
Write block size = 4 KB
Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use. How many OC3 links would you recommend?

A) 4
B) 3
C) 1
D) 2

Solutions: