问题:单选题You are trying to alter the initial segment size given to a table in a dictionary-managed tablespace. Which of the following keywords would be used as part of this process?()A DROP TABLE B ALTER TABLE C RESIZE D COALESCE
Friday, May 3, 2024
问题:单选题You have a long-running process you want to assign to a specific UNDO segment brought online for that express purpose. You are not using automatic UNDO management. What statement can be used for this task? ()A ALTER DATABASE B SET TRANSACTION C ALTER ROLLBACK SEGMENT D ALTER TABLE
Tuesday, March 26, 2024
问题:单选题Which of the following datatypes are used in situations where you want an ordered set of data elements, where every element is the same datatype, and where you predefine the number of elements that appear in the set?()A REF B TABLE C CLOB D VARRAY
Friday, April 12, 2024
问题:单选题The DBA is defining role for users. Which of the following is not an acceptable method for defining a default role?()A ALTER USER DEFAULT ROLE ALLB ALTER USER DEFAULT ROLE ALL EXCEPT ROLE_1C ALTER USER DEFAULT ROLE NONED ALTER USER DEFAULT ROLE NONE EXCEPT ROLE_1
Thursday, March 14, 2024
问题:单选题You are attempting to increase the checkpoint interval on your database. Each of the following choices will affect the duration and/or frequency of checkpoints, except one. Which is it?()A Size of redo logs B Number of datafiles C LOG_CHECKPOINT_INTERVAL D LOG_CHECKPOINT_TIMEOUT
问题:单选题Which of the following operations does not require Oracle to store information in an UNDO segments as part of the transaction?()A INSERT B SELECT C UPDATE D DELETE
问题:单选题You are analyzing the components of the redo log mechanisms in your Oracle database. Which of the following purposes does the CKPT process serve?()A Writes buffers to disk B Writes current redo log number to datafile headers C Writes redo log information to disk D Reads information into memory for users
问题:单选题You are designing the physical database layout on your host machine. What is the relationship between tablespaces and datafiles in the Oracle database?()A One tablespace has only one datafileB Many tablespaces can share one datafileC One tablespace can have many datafilesD One datafile can contain many tablespaces
问题:单选题When determining the number of UNDO segments in a database, which of the following choices identifies a factor to consider? ()A Size of typical transactions B Concurrent transactions C Size of rows in table most frequently changed D Number of anticipated disk sorts
Sunday, December 31, 2023
问题:单选题You issue the following command in Oracle: CREATE TABLESPACE DAT_TBS DATAFILE "dat_tbs.dbf" SIZE 2M;. Later queries against the database reveal that the tablespace is located in the /u01/oradata/oracle directory. Which of the following choices identifies how Oracle likely determined what directory to place dat_tbs.dbf file in?()A DB_CREATE_FILE_DEST B DB_CREATE_ONLINE_LOG_1 C DB_CREATE_ONLINE_LOG_2D The directory is an operating system-specific default value in Oracle that can neigher be specified manually nor changed
Friday, December 22, 2023
问题:单选题Flushing dirty buffers out of the buffer cache is influenced to the greatest extent by which of the following process?()A ARCH B SMON C LGWRD SERVER
问题:单选题By default, checkpoints happen at least as often as().A Redo log switches. B UPDATE statements are issued against the database. C The SYSTEM tablespace is accessed. D SMON coalesces free space in a tablespase.
问题:单选题To determine the space allocated for temporary segments, the DBA can access which of the following views? ()A DBA_TABLESPACES B DBA_TABLES C DBA_SEGMENTS D DBA_FREE_SPACE
问题:单选题When an UNDO segment is created manually by you, its availability status is set to which of the following automatically by Oracle?()A Online B Pending online C Offline D Stale
问题:单选题Your application regularly issues the following statement: SELECT * FROM BANK_ACCT WHERE ACCT_BALANCE BETWEEN 1000 and 10000; Which of the following database objects would be inappropriate for use with this statement?()A Materialized views B Indexes C Index-organized tables D Hash clusters
问题:单选题During regular database operation, which background process will take smaller blocks of free space in a dictionary-managed tablespace and move things around to make bigger pieces of free space?()A DBW0 B LGWR C ARCH D SMON E PMON