单选题The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed？（）A The Oracle database will perform block checking for the index blocks onlyB The Oracle database will not perform block checking for any of the data blocksC The Oracle database will perform block checking for the default permanent tablespace onlyD The Oracle database will perform block checking for the data blocks in all user tablespacesE The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only
单选题
The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed？（）
A
The Oracle database will perform block checking for the index blocks only
B
The Oracle database will not perform block checking for any of the data blocks
C
The Oracle database will perform block checking for the default permanent tablespace only
D
The Oracle database will perform block checking for the data blocks in all user tablespaces
E
The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only
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The DB_BLOCK_CHECKING initialization parameter is set to OFF.Which block checking would be performed?() A. The Oracle database will perform block checking for the index blocks onlyB. The Oracle database will not perform block checking for any of the data blocksC. The Oracle database will perform block checking for the default permanent tablespace onlyD. The Oracle database will perform block checking for the data blocks in all user tablespacesE. The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only
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单选题The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed？（）A The Oracle database will perform block checking for the index blocks onlyB The Oracle database will not perform block checking for any of the data blocksC The Oracle database will perform block checking for the default permanent tablespace onlyD The Oracle database will perform block checking for the data blocks in all user tablespacesE The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only
单选题You work as a database administrator for Supportcenter.cn. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated. What could be the reason for this problem？（）AThe advisory memory has been turned off.BThe DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.CThe STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.DThe TIMED_STATISTICS parameter has been set to FALSE in the parameter file.EThe STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.
单选题The DB_BLOCK_CHECKING initialization parameter is set to OFF. 数据库块检测初始化参数被设定为关 Which block checking would be performed?（）AThe Oracle database will perform block checking for the index blocks only BThe Oracle database will not perform block checking for any of the data blocks CThe Oracle database will perform block checking for the default permanent tablespace only DThe Oracle database will perform block checking for the data blocks in all user tablespaces EThe Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only Oracle
单选题You included the following Automatic Storage Management （ASM） initialization parameter settings in the ASM initialization parameter file： INSTANCE_TYPE = ASM ASM_POWER_LIMIT = 11 LARGE_POOL_SIZE = 4M ASM_DISKGROUPS = DG1， DG2 DB_UNIQUE_NAME = +ASM You are unable to start the ASM instance. Which initialization parameter file setting（s） is not allowing the ASM instance to start？（）A only the INSTANCE_TYPE initialization parameter is set to an invalid valueB only the ASM_POWER_LIMIT initialization parameter is set to an invalid valueC only the LARGE_POOL_SIZE initialization parameter is set to an invalid valueD both the LARGE_POOL_SIZE and INSTANCE_TYPE initialization parameters are set to invalid values
单选题You have created a password file using the following command： ORAPWD file=d：/oracle/ora9i/orapwU01 password=change_on_install entries=3 Which of the following is true about this password file？（）A If the REMOTE_LOGIN_PASSWORDFILE parameter is set to SHARED in the initialization parameter file， then a maximum of three users can be granted the SYSDBA or SYSOPER privileges.B If the REMOTE_LOGIN_PASSWORDFILE parameter is set to EXCLUSIVE in the initialization parameter file， then a maximum of three users can be granted the SYSDBA or SYSOPER privileges.C If the REMOTE_LOGIN_PASSWORDFILE parameter is set to SHARED in the initialization parameter file， then the SYSDBA and SYSOPER privileges can be granted to other users as long as space in the password file isD If the REMOTE_LOGIN_PASSWORDFILE parameter is set to EXCLUSIVE in the initialization parameter file， then the SYSDBAand SYSOPER privileges can be granted to other users as long as space in the password file is available.
多选题Given： String value = getServletContext（）.getInitParameter（"foo"）； in an HttpServlet and a web applicationdeployment descriptor that contains： foo frodo Which two are true？（）AThe foo initialization parameter CANNOT be set programmatically.BCompilation fails because getInitParameter returns type Object.CThe foo initialization parameter is NOT a servlet initialization parameter.DCompilation fails because ServletContext does NOT have a getInitParameter method.EThe foo parameter must be defined within the element of the deployment descriptor.
单选题Which initialization parameter must you set to enable automatic archiving？ （）ALOG_ARCHIVE_DESTBLOG_ARCHIVE_STARTCLOG_ARCHIVE_FORMATDLOG_ARCHIVE_MAX_PROCESSES
单选题The SPFILE for the PROD database specifies the following initialization parameter values： SGA_TARGET = 2G DB_8K_CACHE_SIZE = 128M You create a tablespace named HR with the non-standard block size of 8K. Four database users are running queries on a table in the HR tablespace. These users complain that the queries are taking longer than usual to complete. While investigating the reasons for this delay， you discover that the database encounters extensive cache misses on the database buffer cache with the block size of 8K. You issue the following statement to increase the value of the DB_8K_CACHE_SIZE initialization parameter to 256M： SQLALTER SYSTEM SET DB_8K_CACHE_SIZE=256M SCOPE = BOTH； What is the result of this statement？（）A The statement fails because you cannot set the memory components manually if the SGA_TARGET initialization parameter is set to a nonzero value.B The statement fails because the DB_8K_CACHE_SIZE initialization parameter is not a dynamic parameter.C The statement increases the value of the DB_8K_CACHE_SIZE initialization parameter to 256M and extracts an additional 128M of memory from the automatically sized memory components.D The statement increases the value of the DB_8K_CACHE_SIZE initialization parameter to 256M and reallocates an additional 128M memory from the memory components that are not auto-tuned.
单选题You want to check all the data blocks being written to the datafiles by analyzing the data on each block every time the DBWn process writes. Which action will you perform to check the data blocks？（）A Set the value of the DB_BLOCK_CHECKING initialization parameter to TRUEB Use the ANALYZE utility.C Use the DBVERIFY utility.D Use the DBMS_REPAIR package.