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Real IBM C4090-453 practice exam questions for easy pass!
Updated: Jun 07, 2026
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IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
1. When configuring LUNs for IBM i which is not using VIOS, which of the following is true?
A) LUNs have 520 byte sectors and must match the size of internal drives.
B) LUNs have 512 byte sectors and must match the size of internal drives.
C) LUNs have 520 byte sectors and are limited to 2 TB.
D) LUNs have 512 byte sectors and are limited to 2 TB.
2. What is the set of databases where objects can be accessed by sending SNMP get or set requests?
A) SNMP notifications
B) SNMP SET/GET
C) SNMP MIB
D) SNMPDTB
3. A customer has an existing D68800 which is installed in their data center. It now must have an extra frame added to support additional capacity growth, but there is no room to fit the expansion frame to the right.
Which option should be taken?
A) Create an MES to replace all of the existing capacity with larger drives which support both the existing workload and the planned increase
B) Fit the expansion frame to the left of the base frame
C) Disruptively relocate the D68800 to make space to the right of the base frame for the expansion frame
D) Configure the expansion frame with the DS8000 Passthrough feature to allow placement of the frame anywhere
4. A new DS8000 z/OS storage customer needs to configure the DSS000 system's host adapter ports to Brocade SAN directors for host access in a Metro Mirror solution.
Which protocols must be configured for this system?
A) FIOON for FOP for host ports and FOP for Metro Mirror connection
B) FICON protocol for both host ports and Metro Mirror connection
C) No action required; the DS8000 auto-negotiates the required protocol without any adjustment
D) FIOON protocol for host ports and FOP for Metro Mirror connection
5. After initial installation of DSSSOO systems in a customer site a review must be conducted to verify that the disk system performance is in range.
How can the cache hit ratio be verified?
A) Issue the CLI command dscli>verify-perf-read hit-time period
B) Use the DSS000 Real Time Performance Monitor
C) Use the pen stat command in the CLI
D) Use Tivoli Storage Productively Center
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: D |
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