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1Z0-060 问题列表
问题
单选题You are administering a database and you receive a requirement to apply the following restrictions: 1. A connection must be terminated after four unsuccessful login attempts by user. 2. A user should not be able to create more than four simultaneous sessions. 3. User session must be terminated after 15 minutes of inactivity. 4. Users must be prompted to change their passwords every 15 days. How would you accomplish these requirements?（）A
by granting a secure application role to the usersB
by creating and assigning a profile to the users and setting the REMOTE_OS_AUTHENT parameter to falseC
By creating and assigning a profile to the users and setting the SEC_MAX_FAILED_LOGIN_ATTEMPTS parameter to 4D
By Implementing Fine-Grained Auditing (FGA) and setting the REMOTE_LOGIN_PASSWORD_FILE parameter to none.E
By implementing the database resource Manager plan and setting the SEC_MAX_FAILED_LOGIN_ATTEMPTS parameters to 4.
问题
单选题Which statement is true concerning dropping a pluggable database (PDB)?（）A
The PDB must be open in read-only mode.B
The PDB must be in mount state.C
The PDB must be unplugged.D
The PDB data files are always removed from disk.E
A dropped PDB can never be plugged back into a multitenant container database (CDB).
问题
单选题In your database, you want to ensure that idle sessions that are blocking active are automatically terminated after a specified period of time. How would you accomplish this?（）A
Setting a metric thresholdB
Implementing Database Resource ManagerC
Enabling resumable timeout for user sessionsD
Decreasing the value of the IDLE_TIME resource limit in the default profile
问题
多选题Which two statements are true when row archival management is enabled?（）AThe ORA_ARCHIVE_STATE column visibility is controlled by the ROW ARCHIVAL VISIBILITY session parameter.BThe ORA_ARCHIVE_STATE column is updated manually or by a program that could reference activity tracking columns, to indicate that a row is no longer considered active.CThe ROW ARCHIVAL VISIBILITY session parameter defaults to active rows only.DThe ORA_ARCHIVE_STATE column is visible if referenced in the select list of a query.EThe ORA_ARCHIVE_STATE column is updated automatically by the Oracle Server based on activity tracking columns, to Indicate that a row is no longer considered active.
问题
单选题A senior DBA asked you to execute the following command to improve performance: SQL ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle); You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows. What could be a reason for this recommendation?（）A
The keep pool is not configured.B
Automatic Workarea Management is not configured.C
Automatic Shared Memory Management is not enabled.D
The data blocks in the SUBSCRIBE_LOG table are rarely accessed.E
All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view
问题
多选题You Execute the Following command to create a password file in the database server: $ orapwd file = ‘+DATA/PROD/orapwprod entries = 5 ignorecase = N format = 12’ Which two statements are true about the password file?（）AIt records the usernames and passwords of users when granted the DBA role.BIt contains the usernames and passwords of users for whom auditing is enabled.CIs used by Oracle to authenticate users for remote database administration.DIt records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.EIt supports the SYSBACKUP, SYSDG, and SYSKM system privileges.
问题
多选题Which three resources might be prioritized between competing pluggable databases when creating amultitenant container database plan (CDB plan) using Oracle Database Resource Manager?（）AMaximum Undo per consumer groupBMaximum Idle timeCParallel server limitDCPUEExadata I/OFLocal file system I/O
问题
单选题You want to capture column group usage and gather extended statistics for better cardinality estimates for the CUSTOMERS table in the SH schema. Examine the following steps: 1. Issue the SELECT DBMS_STATS.CREATE_EXTENDED_STATS (‘SH’, ‘CUSTOMERS’) FROM dual statement. 2. Execute the DBMS_STATS.SEED_COL_USAGE (null, ‘SH’, 500) procedure. 3. Execute the required queries on the CUSTOMERS table. 4. Issue the SELECT DBMS_STATS.REPORT_COL_USAGE (‘SH’, ‘CUSTOMERS’) FROM dual statement. Identify the correct sequence of steps.（）A
3，2，1，4B
2，3，4，1C
4，1，3，2D
3，2，4，1
问题
单选题A database is stored in an Automatic Storage Management (ASM) disk group, disk group, DGROUP1 with SQL: There is enough free space in the disk group for mirroring to be done. What happens if the CONTROLLER1 failure group becomes unavailable due to error of for maintenance?（）A
Transactions and queries accessing database objects contained in any tablespace stored in DGROUP1 will fall.B
Mirroring of allocation units will be done to ASM disks in the CONTROLLER2 failure group until the CONTROLLER1 for failure group is brought back online.C
The data in the CONTROLLER1 failure group is copied to the controller2 failure group and rebalancing is initiated.D
ASM does not mirror any data until the controller failure group is brought back online, and newly allocated primary allocation units (AU) are stored in the controller2 failure group, without mirroring.E
Transactions accessing database objects contained in any tablespace stored in DGROUP1 will fail but queries will succeed.
问题
多选题A warehouse fact table in your Oracle 12c Database is range-partitioned by month and accessed frequently with queries that span multiple partitions The table has a local prefixed, range partitioned index. Some of these queries access very few rows in some partitions and all the rows in other partitions, but these queries still perform a full scan for all accessed partitions. This commonly occurs when the range of dates begins at the end of a month or ends close to the start of a month. You want an execution plan to be generated that uses indexed access when only a few rows are accessed from a segment, while still allowing full scans for segments where many rows are returned. Which three methods could transparently help to achieve this result?（）AUsing a partial local Index on the warehouse fact table month column with indexing disabled to the table partitions that return most of their rows to the queries.BUsing a partial local Index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.CUsing a partitioned view that does a UNION ALL query on the partitions of the warehouse fact table, which retains the existing local partitioned column.DConverting the partitioned table to a partitioned view that does a UNION ALL query on the monthly tables, which retains the existing local partitioned columnEUsing a partial global index on the warehouse fact table month column with indexing disabling for the table partitions that return most of their rows to the queries.FUsing a partial global index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.
问题
多选题Which two partitioned table maintenance operations support asynchronous Global Index Maintenance inOracle database 12c?（）AALTER TABLE SPLIT PARTITIONBALTER TABLE MERGE PARTITIONCALTER TABLE TRUNCATE PARTITIONDALTER TABLE ADD PARTITIONEALTER TABLE DROP PARTITIONFALTER TABLE MOVE PARTITION
问题
多选题You want to flash back a test database by five hours.You issue this command:SQL FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);Which two statements are true about this flashback scenario?（）AThe database must have multiplexed redo logs for the flashback to succeed.BThe database must be MOUNTED for the flashback to succeed.CThe database must use block change tracking for the flashback to succeed.DThe database must be opened in restricted mode for the flashback to succeed.EThe database must be opened with the RESETLOGS option after the flashback is complete.FThe database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.
问题
多选题You plan to use the In Database Archiving feature of Oracle Database 12c, and store rows that are inactive for over three months, in Hybrid Columnar Compressed (HCC) format. Which three storage options support the use of HCC?（）AASM disk groups with ASM disks consisting of Exadata Grid Disks.BASM disk groups with ASM disks consisting of LUNS on any Storage Area Network arrayCASM disk groups with ASM disks consisting of any zero padded NFS-mounted filesDDatabase files stored in ZFS and accessed using conventional NFS mounts.EDatabase files stored in ZFS and accessed using the Oracle Direct NFS featureFDatabase files stored in any file system and accessed using the Oracle Direct NFS featureGASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage arrays
问题
多选题You have altered a non-unique index to be invisible to determine if queries execute within an acceptable response time without using this index. Which two are possible if table updates are performed which affect the invisible index columns?（）AThe index remains invisible.BThe index is not updated by the DML statements on the indexed table.CThe index automatically becomes visible in order to have it updated by DML on the table.DThe index becomes unusable but the table is updated by the DML.EThe index is updated by the DML on the table.
问题
多选题Which three are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12cwhen it is enabled?（）AReduced logical I/OBReduced virtual memory utilizationCImproved parallel Execution performanceDImproved Serial Execution performanceEReduced physical I/OFReduced CPU utilization