Exam Questions P

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1 Exam Questions P IBM Information Management DB purescale Technical Mastery Test v3

2 1. Which of the following memory heaps is NOT configurable on the cluster caching facility? A. Shared Communication Area (SCA) Memory. B. Lock Memory. C. Local Buffer Pool Memory. D. Group Buffer Pool Memory. Answer: C 2. Which of the following options does NOT describe a benefit of DB2\'s Row Compression? A. Compression allows you to reduce CPU workload because there is less data to process. B. Compression allows you to retrieve the same amount of data using fewer disk operations (I/O). C. Compression allows you to cache more data in the buffer pools using the same amount of space. D. Compression allows you to store the same amount of data in less space, which can significantly save storage costs. Answer: A 3. Which one of the following options is CORRECT about Temporal Tables? A. System-period temporal tables are used to keep historical versions of records in a table. They use a history table to transparently store updated and deleted data rows. B. Application-period temporal tables are used to keep historical versions of records in a table. They use a history table to transparently store updated and deleted data rows. C. System-period temporal tables combine the historical tracking of an Application-period temporal table with the time-specific data storage capabilities of a bitemporal table. They are used to keep user-based period information as well as system-based historical information.

3 D. Application-period temporal tables combine the historical tracking of a system-period temporal table with the time-specific data storage capabilities of a bitemporal table. They are used to keep user-based period information as well as system-based historical information. Answer: A 4. Which one of the following options is TRUE about High Availability and Disaster Recovery (HADR) feature? A. HADR allows up to two HADR standby databases. B. HADR allows up to three HADR standby databases. C. HADR allows up to four HADR standby databases. D. HADR allows up to five HADR standby databases. Answer: B 5. What is a DB2 instance? A. A DB2 instance is just another name for DB2 Database. B. A DB2 instance is a copy of a database that can be accessed standalone from the database server. C. A DB2 instance is a logical database manager environment where you catalog databases and set configuration parameters. D. DB2 does not use instances. It requires only databases to operate. Answer: C 6. How does DB2 purescale balance the workload among its members? A. Workload balance must be handled by the application. B. Workload balance is automatically performed by DB2 purescale by rerouting the

4 workload to members with lighter loads. C. Workload balance is handled by the Self Tuning Memory Manager (STMM) feature. D. Workload balance cannot be handled by DB2 purescale. It must be handled by a thirdparty application. Answer: B 7. Which one of the following options contains a benefit of the Java Generic Table Functions? A. Java Generic Table Functions allow you to specify the output of a table function when you create it, rather than when you reference it. B. Java Generic Table Functions allow you to specify the output of a table function when you reference it, rather than when you create it. C. Java Generic Table Functions must run on a separate server, thus they don\'t consume DB2 resources. D. Java Generic Table Functions can be implemented in any programming language. Answer: B 8. DB2\'s High Availability and Disaster Recovery (HADR) feature provides a high availability solution for both partial and complete site failures. Given the sentences below, select the CORRECT statement about HADR. A. HADR protects against data loss by saving data changes from a source database into a local recovery log file. B. HADR protects against data loss by replicating data changes from a backup database file to a standby database. C. HADR protects against data loss by replicating data changes from a source database, called the primary, to a target database, called the standby. D. HADR feature is only available for DB2 Advanced Enterprise Edition.

5 Answer: C

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