IBM C2090-600 Real Questions To Pass IBM DB2 11.1 DBA for LUW

1. Assuming no database connections exist, which of the following will dynamically change the LOCKLIST database configuration parameter for a database named SAMPLE to AUTOMATIC?

UPDATE DB CFG FOR sample USING LOOCKLIST AUTOMATIC IMMEDIATE

UPDATE DB CFG FOR sample USING LOOCKLIST 8192 AUTOMATIC IMMEDIATE

CONNECT TO sample; UPDATE DB CFG FOR sample USINGLOCKLIST AUTOMATIC IMMEDIATE;CONNECT RESET;

ATTACH TO db2inst1;UPDATE DB CFG FOR sample USING LOCKLIST AUTOMATIC;DETACH;

2. Which two tasks must be done to read data directly from IBM Softlayer Object Storage and insert it into a DB2 database? (Choose two.)

Catalog a storage access alias in the DB2 database

Create an FTP account on IBM Softlayer Object Storage

Use the DB2REMOTE parameter of the LOAD command

Establish a remote connection to IBM Softlayer Object Storage using DB2 Connect

Create a local disk alias at the database server operating system level that points to IBM Softlayer Object Storage

3. Which of the following statements about compression for BLU MPP tables is TRUE?

Compression must be explicitly enabled for BLU MPP tables

Compression requires decompression to evaluate partition joins

Unique compression dictionaries are generated for each partition

Each table has a single compression dictionary that getsreplicated across all partitions

4. A production database has the following daily midnight backup schedule which includes all table spaces. The database incurs the same volume of daily activity (inserts, updates, and deletes).

Sunday – Delta

Monday – Incremental

Tuesday – Delta

Wednesday – Delta

Thursday – Incremental

Friday – Delta

Saturday – Full

Which day would you expect a RECOVER DATABASE following that day’s backup to take the longest time to complete?

Friday

Monday

Saturday

Wednesday

5. Which statement about NOT ENFORCED unique constraints is TRUE?

NOT ENFORCED unique constraints can not be defined on primary key columns

The query optimizer will consider a NOT ENFORCED unique constraint when selecting an optimal data access plan

When attempting to insert data that does not conform to a NOT ENFORCED unique constraint, awarning will be returned

Storage requirements for a NOT ENFORCED unique constraint are no different than the storage requirements for a similar unique index

6. What is an advantage of using range partitioned tables?

Abilityto run utilities against the partitions in parallel

Increased query performance through data partition elimination

Block indexes are much smaller than RID indexes, providing better performance

Table data is automatically and continuously clustered, requiring minimal reorganization

7. A table named MYTABLE contains an XML column and an XML storage object dictionary already exists.

What is the effect of enabling compression and then running the command REORG TABLE mytable KEEPDICTIONARY?

All data, both new and existing, will becompressed.

Only new or updated data for XML columns will be compressed.

New and existing XML columns will be compressed but other columns remain unchanged.

Existing data will remain uncompressed because the RESETDICTIONARY option of the REORG command was not used.

8. The DBA has observed that queries executed against SALES table have poor performance. SALES is a compressed table and recently there have been a lot of rows inserted and modified in that table. The DBA has detected that lower performance may be the result of sub-optimal compression dictionary for that table.

Which of the following commands should be used to resolve the problem without preventing users from changing data in the SALES table

REORG TABLE sales INPLACE RESETDICTIONARY

REORG TABLE sales INPLACE REBUILDDICTIONARY

REORG TABLE sales ALLOW WRITE ACCESS RESETDICTIONARY

REORG TABLE sales ALLOW WRITE ACCESS REBUILDDICTIONARY

9. If the following SQL statements are executed:

CREATE DATABASE testdb AUTOMATIC STORAGE NO;

CONNECT TO testdb;

CREATE STOGROUP sg1 ON ‘/data1’;

CREATE STOGROUP ibmstogroup ON ‘/data2’;

CREATE STOGROUP sg2 ON ‘/data3’;

Which storage group is the default storage group for the TESTDB database?

SG1

SG2

IBMSTOGROUP

IBMDEFAULTTSG

10. If Secure Sockets Layer is a requirement, which of the following parameters must be set to encrypt data in transit?

Set the DB2COMM registry variable to DB2COMM=SSL

Set the DB2COMM registry variable to DB2COMM=SSL, TCPIP

Set the AUTHENTICATION configuration parameter to DATA_ENCRYPT

Set the AUTHENTICATION configuration parameter to SERVER_ENCRYPT

IBM C2090-600 Real Questions To Pass IBM DB2 11.1 DBA for LUW

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