As IT certifications becoming more and more popular, we decided to have a try, just to make more money, and make ourselves more competitive in this society.

1. A DMX-2 memory configuration containing four (4) memory boards is to be upgraded to larger size cache boards. The upgrade results in a two (2) memory board configuration. How will the bandwidth of the DMX-2 be affected by the upgrade?

A. Decreased by the smaller cache card count

B. Increased by the larger memory size

C. Unchanged, only memory size is affected

D. Will remain at the theoretical maximum

Answer: B

2. What is a major difference in director data flow between the Symmetrix 8000 series and a DMX-2?

A. An 8430 uses loop redundancy

B. An 8530's directors are connected to two data busses

C. Directors in a DMX-2 are connected to top high and bottom low

D. DMX-2 port bypass cards are connected directly to cache

Answer: B

3. What is a difference between a Symmetrix 8830 and a DMX-2?

A. An 8830 24-slot card cage is scalable

B. Disks on a DMX-2 are FC-AL

C. DMX-2 uses a cache interconnect multi-drop bus

D. Maximum system bandwidth on an 8830 is 16Gb/s

Answer: B

We took the E20-616 exam, but when we saw the large quantities of study materials, we became a little anxious. We studied day and light till someday I felt that we could not capture the main points of the real test, so I entered the professional EMC forum to copy others experience.