Vendor: IBM
Exam Code: C2090-550
Exam Name: IBM solidDB and IBM solidDB Universal Cache
QUESTION 1
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
QUESTION 2
To set the transaction log retention space size for solidDB Universal Cache in the solidDB configuration file (solid.ini), which parameter is used?
A. [LogReader]
MaxLogSize
B. [Com]
ReadBufSize
C. [Hotstandby]
MaxMemLogSize
D. [indexFile]
CacheSize
Answer: A
QUESTION 3
What is the correct setup topology when deploying IBM solidDB Universal Cache in conjunction with IBM solidDB High Availability (HotStandby) functionality?
A. CDC for solidDB instances are running on both the Primary node and on the Secondary node,
each CDC instance locally connecting to one solidDB server.
B. CDC for solidDB instance is running on the back-end node, remotely connecting to both Primary
and Secondary solidDB servers.
C. CDC for solidDB instance is runnning on the back-end node, remotely connecting to the Primary
sever. Connection to the Secondary server is managed using Advanced Replication.
D. CDC for solidDB instance is running on the Primary node, locally connecting to the Primary server.
Connection to the Secondary server is managed by transparent failover.
Answer: B
QUESTION 4
What are two possible conflict resolution methods between solidDB and a back-end database? (Choose two.)
A. Source wins
B. Reference
C. Trigger
D. userExit
E. Alert user
Answer: AD
QUESTION 5
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 transaction that are being processTED .
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 stoppTED .
E. Table mappings are not configured properly.
Answer: AC
QUESTION 6
What are two effective ways to increase the throughput of replication between the solidDB in- memory cache and a back-end database? (Choose two.)
A. Add a summarization column to the source.
B. Use multiple subscriptions instead of just one.
C. Update the mirror_commit_after_max_transactions parameter to a higher value.
D. Ensure that the conflict resolution mechanism is set to “source”.
E. Use only the Mirror (Continuous) form of replication.
Answer: BC
QUESTION 7
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 option settings
and values.
B. The configuaration needs to be set in a solid.ini file.
C. The configuration 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
QUESTION 8
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]DurabilityLevel = 4(Custom).
E. SafenessLevel switches to 1-safe when using [Logging]DurabilityLevel = 2(Adaptive).
Answer: AB
QUESTION 9
To administer a HotStandby database you need which privilege?
A. Sys_Sync_Admin_Role
B. Sys_Console_Role
C. Sys_Hotstandby_Role
D. Sys_replication_Role
Answer: B
QUESTION 10
To execute the HotStandby administrative commands, which type of access privilege would be needed?
A. SYS_ADMIN_SYNC_ROLE
B. SYNC_ADMIN_ROLE
C. ADMIN_CONSOLE_ROLE
D. SYS_CONSOLE_ROLE
Answer: D
QUESTION 11
What are two methods for generating a trace file containing database statement executions occurring in the solidDB server? (Choose two.)
A. Enable SQL tracing within the solidDB server
B. Enable ODBC tracing within the solidDB ODBC driver
C. Enable ODBC tracing within the ODBC Driver Manager
D. Enable JDBC tracing within the JDBC Driver Manager.
Answer: AC
QUESTION 12
Which two are directly visible in solidDB server-side SQL Tracing? (Choose two.)
A. longest lasting statements in duration order
B. timestamps of statement preparation
C. timestamps of individual fetch operations
D. timestamps of individual rpc_session operations
E. list of statements currently under execution
Answer: BC
QUESTION 13
Click the Exhibit button.
In the exhibit, what does the attached replication diagram show?
A. All subscriptions are Mirroring Continuous.
B. The subscription FERO_BERW is Inactive.
C. The subscription FERO_BERW is Mirroring Continuous.
D. All subscriptions are using bidirectional Mirroring Continuous.
Answer: C
QUESTION 14
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 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
QUESTION 15
Which software components must be installed to deploy IBM solidDB Universal Cache and provide access to data residing in an IBM DB2 database?
A. IBM solidDB, IBM InfoSphere CDC for solidDB, IBM DB2, IBM InfoSphere CDC for DB2, IBM
InfoSphere CDC Access Server, and IBM InfoSphere CDC Management Console
B. IBM solidDB, IBM DB2, IBM Universal Cache for DB2, IBM InfoSphere CDC Replication Center,
and IBM InfoSphere CDC Management Console
C. IBM solidDB, IBM InfoSphere CDC for solidDB, IBM DB2, IBM InfoSphere CDC Access Server,
and IBM InfoSphere CDC Management Console
D. IBM solidDB, IBM InfoSphere CDC for solidDB, IBM DB2, IBM InfoSphere CDC for DB2, IBM
InfoSphere CDC Replication Center, and IBM InfoSphere CDC Management Console
Answer: A
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