IBM C2090-600 Practice Exam 2021

NEW QUESTION 1
What is the result of the following scenario?

• A. The row is updated to (2, NULL)


• B. The row is updated to (2, 110.00)


• C. SQL0407N Assignment of a NULL value to a NOT NULL column is not allowed


• D. The CREATE TRIGGER statement will fail because amt is defined as NOT NULL

Answer: B

NEW QUESTION 2
On Linux and Unix systems, which of the following will set the DB2_FMP_COMM_HEAPSZ registry variable to 1 GB (or 256000 pages), only for the instance db2inst1?

• A. As the db2 instance owner (db2inst1) execute the command:exportDB2_FMP_COMM_HEAPSZ=256000


• B. Add to the following line to the userprofile (db2inst1): DB2_FMP_COMM_HEAPSZ=256000


• C. As the db2 instance owner (db2inst1) execute the command:db2set –i DB2_FMP_COMM_HEAPSZ=256000


• D. As the db2 instance owner (db2inst1)execute the command:db2set –i db2inst1 DB2_FMP_COMM_HEAPSZ=256000

Answer: C

NEW QUESTION 3
What is the schema name of the DB2 built-in global variable TRUSTED_CONTEXT?

• A. SYSIBM


• B. SYSFUN


• C. SYSCAT


• D. SYSIBMADM

Answer: A

NEW QUESTION 4
Which statement about label-based access control (LBAC) is TRUE?

• A. LBAC protection can be applied to a nickname


• B. LBAC cannot be used to restrict access to a staging table


• C. LBAC cannot be used to restrict access to data of columns and rows in the same table


• D. LBAC protection for columns requires a table to contain a column that has a DB2SECURITYLABEL data type

Answer: D

NEW QUESTION 5
Automatic space reclamation for column-organized tables can be accomplished in which of the following scenarios?

• A. When the registry variableDB2_AUTORECLAIMSPACE=YES


• B. After termination all the back-end processes using TERMINATE command


• C. After setting the database configuration parameter AUTO_DEL_REC_OBJ to ON


• D. When the registry variable DB2_WORKLOAD=ANALYTICS prior to database creation

Answer: C

NEW QUESTION 6
What does dsmtop use to gather metrics?

• A. db2pd


• B. db2dart


• C. the system catalog


• D. monitoring tablefunctions

Answer: D

NEW QUESTION 7
Which statement about Data Server Manager (DSM) is TRUE?

• A. DSM can be used for reviewing audit trails


• B. DSM cannot be used for database administration


• C. DSM can be used for configuration management of DB2 Data Server drivers


• D. DSM can be used to efficiently monitor, analyze, identify, and solve a performance issue

Answer: D

NEW QUESTION 8
Which security mechanism is responsible for verifying that users are indeed who the claim to be?

• A. Authentication


• B. Roles and privileges


• C. Mandatory access control


• D. Discretionary access control

Answer: A

NEW QUESTION 9
Which of the following statements about audit policies is TRUE?

• A. Audit policy changes are applied instantly and affect all inflight transactions.


• B. Multiple audit policies can be associated with the same table at the same time.


• C. The audit policy applied to a table is automatically applied to any view based on that table.


• D. If a user is switched within a trusted connection, the applicable audit policies are re- evaluated for the new user without regard to audit policies for the original user.

Answer: D

NEW QUESTION 10
Which of the following SQL statements will list table spaces whose utilization is greater than 95% and may potentially fill, returning an error?

• A. SELECT tbsp_name, tbsp_utilization_percentFROM TABLE(sysproc.mon_tbsp_utilization()) AS tWHERE tbsp_utilization_percent > 95AND tbsp_auto_resize_enabled = 1;


• B. SELECT tbsp_name, tbsp_utilization_percentFROM syscat.mon_tbsp_utilizationWHERE tbsp_utilization_percent > 95AND tbsp_auto_resize_enabled = 0;


• C. SELECT tbsp_name, tbsp_utilization_percentFROM syscat.mon_tbsp_utilizationWHERE tbsp_utilization_percent > 95AND tbsp_auto_resize_enabled = 1;


• D. SELECT tbsp_name, tbsp_utilization_percentFROM sysibmadm.mon_tbsp_utilizationWHERE tbsp_utilization_percent > 95AND tbsp_auto_resize_enabled = 0;

Answer: C

NEW QUESTION 11
An HADR environment has two standby databases – one principal and one auxiliary. What is the only mode that can be used to transfer data to the auxiliary standby?

• A. SYNC


• B. ASYNC


• C. NEARSYNC


• D. SUPERASYNC

Answer: D

NEW QUESTION 12
If the following SQL statements are executed:

How many rows will be added to the DEPARTMENT table?

• A. 1


• B. 2


• C. 3


• D. 4

Answer: D

NEW QUESTION 13
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?

• A. Friday


• B. Monday


• C. Saturday


• D. Wednesday

Answer: A

NEW QUESTION 14
You receive a large data file that contains large object data values that need to be copied into a table in the shortest amount of time possible. Which utility should be used?

• A. LOAD


• B. INGEST


• C. IMPORT


• D. TRANSPORT

Answer: C

NEW QUESTION 15
Which statement regarding event monitors is TRUE?

• A. Event monitor data can be reviewed while the event monitor is active


• B. Event monitors must always be started manually after activating a database


• C. Event monitors must write data to .EVT files before the data can be loaded into database tables


• D. Event monitors are used to obtain information about how a database system looks at a specific point in time

Answer: B

NEW QUESTION 16
Which ALTER TABLE statements will put a table named TAB1 in “reorg-pending” state? (Choose two.)

• A. ALTER TABLE tab1 APPEND ON


• B. ALTER TABLE tab1 DROP COLUMN col1


• C. ALTER TABLE tab1 ALTER COLUMN col1 SET NOT NULL


• D. ALTER TABLE tab1 DETACH PARTITION part1 INTO tab_part1


• E. ALTER TABLE tab1 ADD CONSTRAINT pk_tab1 PRIMARY KEY (col1)

Answer: BC

NEW QUESTION 17
If Secure Sockets Layer is a requirement, which of the following parameters must be set to encrypt data in transit?

• A. Set the DB2COMM registry variable to DB2COMM=SSL


• B. Set the DB2COMM registry variable to DB2COMM=SSL, TCPIP


• C. Set the AUTHENTICATION configuration parameter to DATA_ENCRYPT


• D. Set the AUTHENTICATION configuration parameter to SERVER_ENCRYPT

Answer: B

NEW QUESTION 18
Which of the following are all valid types of trigger?

• A. AFTER, ATOMIC, BEFORE


• B. AFTER, ATOMIC, INSTEAD OF


• C. AFTER, BEFORE, INSTEAD OF


• D. ATOMIC, BEFORE, INSTEAD OF

Answer: C

NEW QUESTION 19
When choosing the dimensions for an MDC table, poor space utilization can occur due to low cell density. What can cause an MDC table to use much more space?

• A. The page size is too small.


• B. The extent size is too small.


• C. Low cardinality of the dimension(s) chosen.


• D. High cardinality of the dimension(s) chosen.

Answer: D

NEW QUESTION 20
Given the following:

What will be the result of the following SQL statement? INSERT INTO v3 (col1) values (30);

• A. The insert will succeed as it passes validation.


• B. The insert will succeed as there is no WITH CHECK OPTION on view V3.


• C. The insert will result in an error as it violates the WITH CHECK OPTION on view V2.


• D. The insert will succeed as the default WITH CHECK OPTION is LOCAL on view V2.

Answer: C

NEW QUESTION 21
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

• A. REORG TABLE sales INPLACE RESETDICTIONARY


• B. REORG TABLE sales INPLACE REBUILDDICTIONARY


• C. REORG TABLE sales ALLOW WRITE ACCESS RESETDICTIONARY


• D. REORG TABLE sales ALLOW WRITE ACCESS REBUILDDICTIONARY

Answer: C

NEW QUESTION 22
What is an advantage of using range partitioned tables?

• A. Abilityto run utilities against the partitions in parallel


• B. Increased query performance through data partition elimination


• C. Block indexes are much smaller than RID indexes, providing better performance


• D. Table data is automatically and continuously clustered, requiring minimal reorganization

Answer: B

NEW QUESTION 23
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