C4090-454 Online Practice Questions and Answers

An existing single cluster TS7740 customer needs to double the backup throughput from 500 MB/sec to 1000 MB/sec. This customer currently has a 3957-VOl configured with: 1 3956-CC8 controller 5 x 100 MB/sec Enablement 6 x 1 TB Cache Enablement 4 x F ICON Long wave Attachment

Which of the following would fulfill the above upgrade requirements?

A. Additional: S x 100 MB/sec Enablement 21 TB of 3956-CX7

B. Additional: 5 x 100 MB/sec Enablement 14 x 1 TB Cache Enablement4 x FICON Longwave Attachment

C. Additional: 5 x 100 MB/sec Enablement 14 x 1 TB Cache Enablement4 x FICON Longwave Attachment 14 TB of 3956- 0X7

D. Additional: 5 x 100 MB/sec Enablement 14 x 1 TB Cache Enablement 2 x 1 GB Grid Dual Port Copper Connection 14 TB of 3956-CX7

What is the maximum number of 3490 control units that can be defined in HOD for a TS7700?

A. 16

B. 32

C. 64

D. 256

Which company is a key competitor to IBM in the enterprise tape area?

A. HP

B. HDS

C. Oracle

D. Quantum

In a single TS3500 library' with no other TS7700 or open systems drives, what is the minimum number of Model 007 controllers required to install the maximum number of drives supported in the TS3500 library?

A. 8 controllers with 96 drives attached

B. 8 controllers with 128 drives attached

C. 12 controllers with 192 drives attached

D. 16 controllers with 192 drives attached

What is a key characteristic of a disaster recovery (DR) solution compared to a high availability (HA) solution?

A. DR always requires human intervention while HA always is automated

B. DR means doubling all equipment in 2 separate sites while HA means doubling all equipment in a single site

C. DR only protects from natural disasters (fire, flooding, earthquakes etc) while HA only protects from IT equipment outage

D. DR protects from outage of a complete site while HA protects from outage of one or several individual elements in the IT infrastructure

Which of the following best describes the TS1140 EastSync function?

A. Matches the input and output data rates of the main buffer

B. Uses a non-volatile cache for small transaction sizes (less than 204 MB compressed)

C. Reads forward to the requested target block rather than performing a higher-speed tape motion

D. Improves synchronized write performance for larger transactions (greater than 204 MB compressed)

When installing the first TS7740 Release 3.0 into an environmentwhat additional customertraining may also be required?

A. 3494 operator training

B. TS3310 operator training

C. DS5000 operator training

D. TS3500 operator training

Which of the following is a point of information output from VEHSTATS?

A. The active data distribution

B. The percentage cache hit rate

C. The usage of specific stacked volume cartridge

D. The use of TS7700 resources of a batch job or subsystem

A customer has two TS7740 V07 at Release 3 in a two-way grid across two sites. There is a new requirement for a subset of the data created in Site A (Cluster 0) to be written in both sites but to be in Site B (Cluster 1) at the end of the job. What method is best employed to achieve this with the least impact on the batch run, and at the lowest cost?

A. Setup a policy for the data creating a copy consistency of RR in Site A

B. Setup a policy for the data creating a copy consistency of RD in Site A

C. Set up a policy for the data creating a copy consistency of DR in Site A

D. Connect Site A to the TS7740 in Site B with two PICON channels and run the jobs using logical units on Site B

What is the minimum number of FC switches required to connect four TSI 140 drives installed in a TS3500 to a 3592 007 tape controller?

A. 0

B. 1

C. 2

D. 4