单选题You have created a resource plan, DB_PLAN, using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan?()A assign users to consumer groupsB set the resource plan for the instanceC configure a simple resource plan and specify plan directivesD configure a complex resource plan and specify plan directives

单选题
You have created a resource plan, DB_PLAN, using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan?()
A

 assign users to consumer groups

B

 set the resource plan for the instance

C

 configure a simple resource plan and specify plan directives

D

 configure a complex resource plan and specify plan directives


参考解析

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单选题You recently created a complex resource plan named DB_PLAN that has two subplans named OLTP_PLAN and DSS_PLAN. The OLTP_PLAN and DSS_PLAN subplans are allotted 70 percent and 30 percent of the total CPU resources, respectively. The OLTP_PLAN subplan allocates 35 percent of the available CPU resources to a resource consumer group named ACCT_CLERKS. According to the OLTP_PLAN subplan, the remaining 65 percent of the available CPU resources is allocated to a second resource consumer group named MKT_CLERKS. The CPU resources available to the DSS_PLAN subplan are divided into two resource consumer groups named MKT_MANAGERS and FIN_MANAGERS. The MKT_MANAGERS group receives 65 percent of the available CPU resources, and the FIN_MANAGERS group receives 35 percent of the available CPU resources. What percentage of actual CPU resources will the resource consumer group, MKT_CLERKS, receive, if the DSS_PLAN subplan does NOT consume any CPU resources?()A 45.5B 65C 70D 100

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单选题You are using the Database Resource Manager to manage database resources. You created a resource plan directive for the MANAGERS resource consumer group under the SALES_PLAN by using the following statement:   SQLEXEC DBMS_RESOURCE_MANAGER.CREATE_PLAN_DIRECTIVE   (PLAN = ’SALES_PLAN’,   GROUP_OR_SUBPLAN = ’MANAGERS’,   CPU_P1 = 100, CPU_P2 =0,   SWITCH_GROUP = ’CLERKS’,   SWITCH_TIME_IN_CALL = 600);   A user, SCOTT, who is assigned to the MANAGERS group, starts a database session and executes a query on the database. What is the outcome if the query takes approximately 15 minutes to complete?()A The query starts under the CLERKS group and the user, SCOTT, switches back to the MANAGERS group after the query completes.B The query starts under the MANAGERS group but terminates with an error when the execution time exceeds 10 minutes.C The query starts under the MANAGERS group and switches automatically to the CLERKS group when the execution time exceeds 10 minutes. The query does not switch back to the MANAGERS group after the query completes.D The query starts under the MANAGERS group, the user SCOTT switches automatically to the CLERKS group when the execution time exceeds 10 minutes, and then switches back to the MANAGERS group after the query completes.

单选题You recently activated a resource plan named OLTP_PLAN in your database. Several users are concurrently running long transactions. You decide to monitor the resource manager to determine if the resource allocation formulated in the OLTP_PLAN is sufficient for peak database hours. Which dynamic performance view should you use to display the CPU time consumed by all the sessions within the resource groups?()A V$SYSSTATB V$SESSSTATC V$RSRC_PLAND V$RSRC_CONSUMER_GROUP

单选题Manually, you set the consumer group of all of the newly created users to MYDB_GRP. You want the users to be able to change their consumer groups as per the application requirement. What was the first step that was needed in the process to achieve this objective?()AThe user must have been granted the DBA role.BThe user must have been granted the switch privilege as a part of a role.CThe user must have been granted the Resource Manager administrator privilege.DThe user must have been granted the switch privilege by using the DBMS_RESOURCE_MANAGER_PRIVS package.

单选题You have created a resource plan, DAY. You execute the following code:        SQL BEGIN        DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_DIRECTIVE   ( PLAN = ’DAY’,        COMMENT = ’DEPARTMENTS PLAN’,   GROUP_OR_SUBPLAN = ’DEPARTMENTS’,        CPU_P1=0);        END;   Then, you issue the following code:        SQL BEGIN   DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_DIRECTIVE        ( PLAN = ’DAY’,        COMMENT = ’DEPARTMENTS PLAN’,        GROUP_OR_SUBPLAN = ’DEVELOPERS’,        CPU_P2=100);        END;   What will be the impact of executing the above code?()A The DEVELOPERS and DEPARTMENTS subplans will be allocated CPU equally.B The DEVELOPERS subplan will be allocated 100 percent CPU if there are no resources allocated to the DEPARTMENTS subplan.C The DEPARTMENT subplan will be allocated 100 percent CPU if there are no resources allocated to the DEVELOPERS subplan.D The second code will not execute because one resource plan cannot be used by more than one subplan.

单选题Using Oracle Scheduler you have scheduled two jobs, JOB_A and JOB_B, to run at 9:00 p.m. every Friday. You want both the jobs to use a single resource plan, WEEKEND_PLAN. Which task must have already been performed to enable you to achieve this objective?()A A window must have been created with the WEEKEND_PLAN resource plan.B A program must have been created with the WEEKEND_PLAN resource plan.C A job class must have been created with the WEEKEND_PLAN resource plan.D A windows group must have been created with the WEEKEND_PLAN resource plan.

多选题In your production database, you observe that users’ transactions are consuming a lot of resources and you plan to impose resource restrictions by using Resource Manager. For which three resources can you enable usage restrictions by using Resource Manager? ()ACPU usageBdegree of parallelismCnumber of open cursorsDnumber of sorts performedEidle time for blocking sessionsFnumber of disk I/O operations performedGnumber of memory I/O operations performed

单选题Which statement is true while creating subplans using Resource Manager?()A The subplan must belong to the consumer group, SYS_GROUP.B The total CPU usage at any given level must be less than 100%.C The subplans can be used to restrict the degree of parallelism for a user.D You can use a resource plan instead of a consumer group to implement a priority ranking within the plan.

单选题You have created a resource plan, DB_PLAN, using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users.   Which step must be performed before you can start using the resource plan?()Aassign users to consumer groupsBset the resource plan for the instanceCconfigure a simple resource plan and specify plan directivesDconfigure a complex resource plan and specify plan directives

单选题You have created a resource plan, PROD_DB_PLAN, that uses the RATIO policy. The following consumer groups and their respective plan directives have been assigned to this resource plan: Consumer group HIGH_CG with CPU_P1 as 10.  Consumer group MEDIUM_CG with CPU_P1 as 5.  Consumer group LOW_CG with CPU_P1 as 2.  Consumer group OTHER_GROUPS with CPU_P1 as 1.  Which statement is correct in this scenario?()A The CPU allocation would be equal between the HIGH_CG and MEDIUM_CG consumer groups if there are no sessions existing for the LOW_CG and OTHER_GROUPS consumer groups.B The members of the HIGH_CG consumer group would get 10% of the CPU.C The plan PROD_DB_PLAN can have subplans.D The CPU allocation for the consumer groups would be based on the ratio defined for the CPU_P1.

多选题You work as a database administrator at Certkiller .com. In your production database, you observe that users’ transactions are consuming a lot of resource and you plan to impose resource restrictions by using Resource Manager. For which three resources can you enable usage restrictions by using Resource Manager? ()ACPU usageBdegree of parallelismCnumber of open cursorsDnumber of sorts performedEidle time for blocking sessionsFnumber of disk I/O operations performedGnumber of memory I/O operations performed

单选题You are using Resource Manager to manage system resources. While creating a new database user, you observe that the user is a member of DEFAULT_CONSUMER_GROUP by default. What would be the implications of this?()AThe Resource Manager plan does not affect the user.BThere must be a plan directive in any of the plans of the group to control the resources.CThe members of the group DEFAULT_CONSUMER_GROUP always have resource restrictions.DThe members of DEFAULT_CONSUMER_GROUP are restrained from accessing the system tables.EThe members of this group can change their group without the database administrator’s intervention.