A vendor's distributed storage system was put into operation for 100 days, running 24 hours a day. A failure occurred in the morning of the 10th day, and it took 1 hour to recover from the failure. A failure occurred in the morning of the 25th day, and it took 4 hours to recover from the failure. A failure occurred in the morning of the 80th day, and it took 1 hour to recover from the failure.
Which of the following is the availability of the software system?

• A.0.9775
• B.0.9925
• C.0.9725
• D.0.9975000000000001

Comment: *

Name: *

Email: *

Verification: *

What are valid criteria in determining the performance requirements of a solution? (Multiple Choice)

• A.How many snapshots are needed.
• B.How many for Virtual Machines are needed.
• C.Type of applications used.
• D.Synchronous or Asynchronous replication.

Comment: *

Name: *

Email: *

Verification: *

For a certain multi-user multimedia on-demand service application, users use different code streams. The prefetch strategy that should be selected for this application when planning the LUN of the back-end N8500 cluster IAS storage system is:

• A.Smart prefetching
• B.Fixed prefetch
• C.No prefetch
• D.Variable prefetch

Comment: *

Name: *

Email: *

Verification: *

Which of the following options describes the features of Huawei Oceanstor 900 is wrong?

• A.Oceanstor 9000 does not support access to Oceanstor DevieManager via HTTPS
• B.Oceanstor 9000 uses a global cache, so the data is saved in the cache
• C.Oceanstor 900 can expand smoothly, and its capacity and performance support linear expansion.
• D.Oceanstor 9000 adopts a fully symmetrical logical architecture and business load balancing design, which can greatly improve the concurrent access capability of the system

Comment: *

Name: *

Email: *

Verification: *

In the Huawei Active-Active DC Solution, Oracle RAC can provide services concurrently at both sites.

• A.FALSE
• B.TRUE

Comment: *

Name: *

Email: *

Verification: *