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1. With HADR, IBM Tivoli System Automation for Multiplatforms (SA MP) automated failover can be used with which database(s)?
A) The primary, auxiliary standby, and principal standby database.
B) The auxiliary standby database only.
C) The principal standby database only.
D) The primary database only.
2. Which statement about value compression is correct?
A) To use value compression, you must have a license for the DB2 Storage Optimization Feature.
B) Value compression involves removing duplicate entries for a value, only storing one copy, and keeping track of the location of any references to the stored copy.
C) When value compression is used, the byte count of compressed NULLs, zeros, and blanks might be larger than that of the uncompressed version of the same values.
D) Value compression uses a page-level dictionary-based compression algorithm to compress data based on repetition of values found in a single column.
3. What type of file system is used to store data and logs in a DB2 pureScale environment?
A) Enhanced Journaled File System (JFS2 or EXT4)
B) Network File System (NFS)
C) Common Internet File System (CIFS)
D) General Parallel File System (GPFS)
4. A query against the system catalog revealed that data for a table named SALES in a partitioned database is distributed as follows:
What can be done to improve the performance of a query that joins SALES and DATE_DIM tables (where SALES is a fact table and DATE_DIM is a dimension table) using the DATE_ID column?
A) Reload table SALES and use only one partition with a collocated join to the DATE_DIM table using the primary key DATE_ID.
B) Reload table DATE_DIM and use only one partition with a collocated join to the SALES table using the primary key DATE_ID.
C) Create a replicated table REPL_DATE_DIM from the DATE_DIM table, refresh REPL_DATE_DIM table, create index on DATE_ID column in theREPL_DATE_DIM table, and collect statistics on REPL_DATE_DIM table.
D) Create a replicated table REPL_SALES from the SALES table, refresh REPL_SALES table, create index on DATE_ID column in theREPL_SALES table, and collect statistics on REPL_SALES table.
5. Which statement about the initiation of parallel I/O is correct?
A) For sequential prefetching, parallel I/O is initiated when the prefetch size is a multiple of the extent size for a table space. Each prefetch request is divided into smaller requests and assigned to different I/O servers.
B) For list prefetching, each list of data pages is divided into smaller lists according to extent boundaries and assigned to different I/O servers.
C) For sequential prefetching, parallel I/O is initiated when the extent size is a multiple of the prefetch size for a table space. Each prefetch request is divided into smaller requests and assigned to different I/O servers.
D) For read-ahead prefetching, each list of data pages is divided into smaller lists according to extent boundaries and assigned to different I/O servers.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: A |
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