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시험 이름: DB2 9 Family Fundamentals
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시험 이름: Assessment: IBM solidDB and IBM solidDB Universal Cache
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NO.1 What are two possible reasons for high latency between a solidDB in-memory cache
and a back-end
database? (Choose two.)
A. Insufficient network bandwidth for the volume of transactions that are being processed.
B. The network connection between the solidDB in-memory cache and the back-end
database is
down.
C. There is database lock contention on the target database.
D. The CDC instances are stopped.
E. Table mappings are not configured properly.
Answer: A,C
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NO.2 After completing the upgrade of the Primary server while performing a cold HSB-
incompatible
upgrade, what is the correct sequence of steps to upgrade to the Secondary server?
A. Upgrade both servers; start and verify that the upgraded Primary server is in a PRIMARY
ALONE state; start the Secondary server and verify that it is in a SECONDARY ACTIVE
state;
perform a 'hsb connect' command to resynchronize the servers and restore to normal
operation.
B. Upgrade both servers; start and verify that the upgrade Primary server is in a PRIMARY
ALONE state; start the Secondary server and verify that it is in a SECONDARY ACTIVE
state;
perform a 'hsb netcopy' command followed by 'hsb connect' to resynchronize the servers and
restore to normal operation.
C. Upgrade both servers; start and verify that the upgraded Primary server is in a PRIMARY
ACTIVE state; start the Secondary server and verify that it is in a SECONDARY ALONE
state;
perform a 'hsb connect' command to resynchronize the servers and restore to normal
operation.
D. Upgrade both servers; start and verify that the upgraded Primary server is in a PRIMARY
ALONE state; start the Secondary server and verify that it is in a SECONDARY ALONE
state;
perform a 'hsb netcopy' command followed by 'hsb connect' to resynchronize the servers and
restore to normal operation.
Answer: D
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NO.3 How many different installations of solidDB binaries can exist on the same host?
A. one
B. as many as can fit
C. one per release of solidDB
D. one per version of solidDB
Answer: B
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NO.4 When setting the [HotStandby]SafenessLevel = Auto, which two statements are true
about
transaction durability and HotStandby safeness level? (Choose two.)
A. SafenessLevel switches to 1-safe when using [Logging]DurabilityLevel = 1(Relaxed).
B. SafenessLevel switches to 2-safe when using [Loggng]DurabilityLevel = 2(Adaptive).
C. SafenessLevel switches to 1-safe when using [Logging]DurabilityLevel = 3(Strict).
D. SafenessLevel switches to 2-safe when using [Logging]DurabiltyLevel = 4(Custom).
E. SafenessLevel switches to 1-safe when using [Logging]DurabiltyLevel = 2(Adaptive).
Answer: A,B
IBM A2090-550교재 A2090-550시험정보
NO.5 You have setup solidDB Universal Cache such that you have a table DBA.ORG in the
solidDB
front-end, being mirrored to a back-end database. After some time, you notice that the
subscription is Inactive and you try to start Mirroring (Continuous). The subscription state
remains
Inactive and the Event Log shows that the structure of table DBA.ORG has changed. What is
the
recommended course of action?
A. In solidDB, drop the ORG table and recreate it; then restart the subscription.
B. In the backend database, drop the ORG table and recreate it; then restart the subscription.
C. In solidDB, change the table definition to what it was previously; then restart the
subscription.
D. In the Management Console, use the 'Update table definition' option, for the source in the
Table
Mappings area; then restart the subscription.
Answer: D
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NO.6 A solidDB disk-based database instance has been optimally running for six months and
starts to
experience major degradation in performance. Upon executing an overall DB status report
using ADMIN
COMMAND "status", it is noted that the value for index writes after last merge is at
20945876. Why would this be a probable cause of the performance degradation?
A. A large value for this counter signifies that the creation of indices, after a large batch insert
process, has been halted leading to excessive memory usage which can cause serious
performance issues.
B. A large value for this counter signifies that a large number of transactions are being
checkpointed which can cause serious performance issues.
C. A large value for this counter signifies that the multi-versioning storage tree is not being
flushed
to disk due to a long running transaction which can cause serious performance issues.
D. A large value for this counter signifies that a transaction performing a merge-join is
utilizing a
large amount of memory causing potential process paging/swapping leading to serious
performance issues.
Answer: C
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NO.7 Which statement regarding IBM solidDB Netbackup is true?
A. One IBM solidDB Netbackup Server can only serve one backup source server.
B. The command ADMIN COMMAND 'netbackup' is supported within the [Srv]At
configuration
parameter.
C. NetBackup copies logical database consisting of multiple files to one flat file to the
NetBackupDirectory by default.
D. If the specified remote directory does not exist, it is not created automatically by the
solidDB
Netbackup Server.
Answer: C
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NO.8 To set up solidDB in a standalone, HotStandby or Universal Cache configuration,
where can the
configuration be performed?
A. The configuration is performed from the command line using the solid command with
suitable
option settings and values.
B. The configuration needs to be set in a solid.ini file.
C. The configurations can be set up by using the solsql tool and the operating system
services file.
D. The standalone configuration is set in the solid.ini file while the HotStandby and Universal
Cache configuration is set using the sqlcon tool.
Answer: B
IBM자격시험 A2090-550국제공인자격증 A2090-550시험일정
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