What does the ovbuff field of an onstat -p output show?

A. The number of times that a buffer was read.

B. The number of times a buffer was extended.

C. The number of times that any buffer was overwritten.

D. The number of times the instance ran out offree buffers.

Which statement about updating statistics is NOT true?

A. UPDATE STATISTICS HIGH scans the entire table.

B. Data distributions are updated every time UPDATE STATISTICS LOW is executed.

C. UPDATE STATISTICS operations will benefit by tuning the DBUPSPACE environment variable.

D. An UPDATE STATISTICS LOW command will ignore tables and indexes with modifications less than STATCHANGE.

Which list fragmentation statement is true?

A. It cannot be used for indexes.

B. It allows overlapping fragments.

C. It can only be used for numeric columns.

D. It allows a fragment to be defined as a remainder.

Which statement regarding the Single Sign-On (SSO) feature is correct?

A. You cannot use the Informix DB-Access client with SSO.

B. The Informix implementation of SSO does not support PAM.

C. Authentication for the DBMS happens when a user first logs in to the client computer or domain.

D. The user is prompted for a password every time a user action tries to access an Informix database.

Without explicitly setting DBSPACETEMP and TEMPTABLE_NOLOG, where will temporary tables be created by default? (Choose three.)

A. The rootdbspace.

B. The users' home directory.

C. The $INFORMIXDIR/tmp directory.

D. Thedbspace in which the active database was created.

E. The /tmp directory or PSORT_DBTEMP.