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Sample questions of the C2090-619 free dumps

Question 1:

Which configuration parameter can toggle the automatic expansion of storage spaces?

A. SP_AUTOGROW

B. SP_AUTO_SPACE

C. SP_AUTOEXPAND

D. SP_EXPAND_ENABLE

Correct Answer: C

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Question 2:

Which statement is FALSE about dbspace configurable page sizes?

A. Dbspace page size can only be set for non-critical dbspaces.

B. Possible page sizes are multiples of the default page size up to 16 kb.

C. Configure page sizes as close to the backup / restore and network buffer size as possible for efficient data transfer across the wire.

D. Dbspace page size should be configured to accommodate the greatest number of average row sizes with a minimum of remainder pages beingused.

Correct Answer: C

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Question 3:

Which configuration parameter should be set to enable asynchronous page requests when the database server detects that a query is waiting on I/O?

A. DIRECT_IO

B. DEEPSPACE

C. AUTO_AIOVPS

D. AUTO_READAHEAD

Correct Answer: D

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Question 4:

Which table attribute defines the percentage of changes (insert/update/delete) threshold to consider the statistics as stale?

A. STATAUTO

B. STATFORCE

C. FORCE AUTO

D. STATCHANGE

Correct Answer: D

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Question 5:

Which configuration parameter locks the resident and virtual segments of shared memory in operating-system physical memory?

A. SHMSEG

B. SHMBASE

C. RESIDENT

D. INFORMIXSHMLCK

Correct Answer: C

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Question 6:

Which configuration parameter can be set to quickly return rows to a user while a query continues processing?

A. OPTOFC

B. OPTMSG

C. OPT_GOAL

D. OPTCOMPIND

Correct Answer: C

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Question 7:

Which statement is FALSE about Informix’s Automatic checkpoint Feature?

A. Automatic checkpoints cause less logical log activity.

B. Automatic checkpoints try to avoid transaction blocking.

C. Automatic checkpoints cause the database server to trigger more frequent checkpoints.

D. Automatic checkpoints can be dynamically enabled or disabled by using mode -wm or mode -wf.

Correct Answer: A

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Question 8:

Which option maximizes performance in an Informix Warehouse (DSS) environment?

A. the Higher value of LOGBUFF.

B. Higher value of PHYSBUFF.

C. Higher value of BUFFERPOOL and lower value of DS_TOTAL_MEMORY.

D. SHMTOTAL set to 0 to allow Informix to access all available physical memory.

Correct Answer: D

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Question 9:

Consider the following statements: DBSPACETEMP=tempdbs1, tempdbs2, tempdbs3; CREATE DATABASE mydb WITH LOG IN datadbs1; CREATE TEMP TABLE temp1 (col1 int); Which statement is true?

A. The temp table will be created in datadbs1.

B. The temp table will be created in root dbspace.

C. The temp table will be created in one of the dbspaces listed in DBSPACTEMP.

D. The temp table will be created round-robin across the dbspaces in DBSPACETEMP.

Correct Answer: B

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Question 10:

In which table can you find a history of all SQL Administration API functions executed in the last 30 days?

A. sysadmin:admin_history

B. spymaster:admin_history

C. sysadmin:command_history

D. spymaster:command_history

Correct Answer: C

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Question 11:

The following message is received: Lock table overflow – user id user32, session id 54. What action should be taken to prevent this problem in the future?

A. Run the clean utility to clear the lock table.

B. Increase the LOCKS configuration parameter.

C. Turn on the AUTO_TUNE configuration parameter.

D. Change the DEF_TABLE_LOCKMODE configuration parameter from page to row.

Correct Answer: B

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Question 12:

You need to create a new role for users on the store’s database. Which system catalog table can be checked to ensure the uniqueness of the new role name?

A. stores:sys users

B. spymaster:systoles

C. sys user:sysroleauth

D. spymaster: sys users

Correct Answer: A

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Question 13:

Which Informix utility is used to print information about runtime statistics for all threads in the server?

A. onstat -g sta

B. onstat -g act

C. onstat -g rea

D. onstat -g cpu

Correct Answer: D

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Question 14:

Given the following:

How many locks will be used on tab1 to run the query?

A. 0

B. 1

C. 2

D. Depends on the number of index pages accessed

Correct Answer: A

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Question 15:

Which SQL statement is valid to monitor database server sessions?

A. EXECUTE FUNCTION task (“onstat”,”-g ses”);

B. EXECUTE FUNCTION task (“view sessions”, “all”);

C. EXECUTE FUNCTION task (“check sessions”, “all”);

D. EXECUTE FUNCTION task (“check server”, “sessions”);

Correct Answer: A

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