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何谓Sampling plan？
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考题
All of the following statements about acceptance sampling are true except:A . Acceptance sampling plans are beneficial when the cost of inspection is high and the resulting loss of passing nonconforming units is not great.B . Acceptance sampling plans are necessary when destructive inspections are required.C . Acceptance sampling plans are never effective at rejecting nonconforming units as 100 percent inspection, even when the inspection process is very tedious.D . Acceptance sampling plans do not directly control the quality of a series of lots; they instead specify the risk of accepting lots of given quality.E . Acceptance sampling plans are not very effective for inspecting small lots of custom-made products.
考题
You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）A. The tuned plan is not added to the SQL plan baseline.B. The tuned plan is added to the fixed SQL plan baseline as a fixed plan.C. The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan.D. The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.
考题
The OPTIMIZER_USE_PLAN_BASELINES parameter is set to TRUE. The optimizer generates a plan for a SQL statement but does not find a matching plan in the SQL plan baseline.Which two operations are performed by the optimizer in this scenario?（）A. The optimizer adds the new plan to the plan history.B. The optimizer selects the new plan for the execution of the SQL statement.C. The optimizer adds the new plan to the SQL plan baseline as an accepted plan.D. The optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state.E. The optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with the lowest cost.
考题
Which three statements are true about SQL plan directives?()
A. They are tied to a specific statement or SQL id.B. They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.C. They are used to gather only missing statistics.D. They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.E. They instruct the optimizer to create only column group statistics.F. Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace.
考题
● Perform Quality Control is the process of monitoring and recording results of executing the Quality Plan activities to assess performance and recommend necessary changes．(74) are the techniques and tools in performing quality control．Statistical sampling ① Run chart ②Control charts ③ Critical Path Method ④Pareto chart ⑤ Cause and effect diagrams ⑥(74)A．①②③④B．②③④⑤C．①②③⑤⑥D．①③④⑤⑥
考题
Perform. Quality Control is the process of monitoring and recording results of executing the Quality Plan activities to assess performance and recommend necessary changes. ______ are the techniques and tools in performing quality control.. ① Statistical sampling ② Run chart ③ Control charts ④ Critical Path Method ⑤ Pareto chart ⑥ Cause and effect diagramsA．①②③④B．②③④⑤C．①②③⑤⑥D．①③⑤⑥
考题
Whatisthetermthatisusedtodescribetheprocessofconvertingasignalfromdigitaltoanalog?()
A.packetizationB.quantizationC.decodingD.sampling
考题
Perform Quality Control is the process of monitoring and recording results*of executing the Quality Plan activities to assess performance and recommend necessary changes.（） are the techniques and tools in performing quality control① Statistical sampling ② Run chart③ Control charts ④ Critical Path Method⑤ Pareto chart⑥ Cause and effect diagramsA.①②③④
B.②③④⑤
C.①②③⑤⑥
D.①③④⑤⑥
考题
Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks？（）A、The three required steps in the analog to digital conversion are sampling，encoding，and compression.B、The three required steps in the analog to digital conversion are sampling，quantization，and compression.C、The three required steps in the analog to digital conversion are sampling，quantization，and encoding.D、The output of the sampling process is a pulse code modulation （PCM） signal.E、The output of the sampling process is a pulse amplitude modulation （PAM） signal.
考题
What is the term that is used to describe the process of converting a signal from digital to analog？（）A、 packetizationB、 quantizationC、 decodingD、 sampling
考题
Examine the parameter for your database instance: You generated the execution plan for the following query in the plan table and noticed that the nested loop join was done. After actual execution of the query, you notice that the hash join was done in the execution plan: Identify the reason why the optimizer chose different execution plans.（）A、The optimizer used a dynamic plan for the query.B、The optimizer chose different plans because automatic dynamic sampling was enabled.C、The optimizer used re-optimization cardinality feedback for the query.D、The optimizer chose different plan because extended statistics were created for the columns used.
考题
The Database Resource Manager is not currently active in your database that is up and running. You created a resource plan named DAY_PLAN that contains two sub-plans named MANAGERS_PLAN and CLERKS_PLAN. You decided to activate DAY_PLAN by executing the following statement： SQLALTER SYSTEM SET RESOURCE_MANAGER_PLAN = ’managers_plan’； What will be the outcome of this statement？（） A、 The statement will deactivate DAY_PLAN.B、 The statement will activate DAY_PLAN as the top plan.C、 The statement will activate MANAGERS_PLAN as the top plan.D、 The statement will return an error because MANAGERS_PLAN is not the top plan.
考题
单选题The Database Resource Manager is not currently active in your database that is up and running. You created a resource plan named DAY_PLAN that contains two sub-plans named MANAGERS_PLAN and CLERKS_PLAN. You decided to activate DAY_PLAN by executing the following statement： SQLALTER SYSTEM SET RESOURCE_MANAGER_PLAN = ’managers_plan’； What will be the outcome of this statement？（）A
The statement will deactivate DAY_PLAN.B
The statement will activate DAY_PLAN as the top plan.C
The statement will activate MANAGERS_PLAN as the top plan.D
The statement will return an error because MANAGERS_PLAN is not the top plan.
考题
多选题Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks？（）AThe three required steps in the analog to digital conversion are sampling，encoding，and compression.BThe three required steps in the analog to digital conversion are sampling，quantization，and compression.CThe three required steps in the analog to digital conversion are sampling，quantization，and encoding.DThe output of the sampling process is a pulse code modulation （PCM） signal.EThe output of the sampling process is a pulse amplitude modulation （PAM） signal.
考题
单选题Examine the parameter for your database instance: You generated the execution plan for the following query in the plan table and noticed that the nested loop join was done. After actual execution of the query, you notice that the hash join was done in the execution plan: Identify the reason why the optimizer chose different execution plans.（）A
The optimizer used a dynamic plan for the query.B
The optimizer chose different plans because automatic dynamic sampling was enabled.C
The optimizer used re-optimization cardinality feedback for the query.D
The optimizer chose different plan because extended statistics were created for the columns used.
考题
多选题Which three statements are true about SQL plan directives?（）AThey are tied to a specific statement or SQL id.BThey instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.CThey are used to gather only missing statistics.DThey are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.EThey instruct the optimizer to create only column group statistics.FImprove plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace.
考题
单选题You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）A
The tuned plan is not added to the SQL plan baseline.B
The tuned plan is added to the fixed SQL plan baseline as a fixed plan.C
The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan.D
The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.
考题
多选题The OPTIMIZER_USE_PLAN_BASELINES parameter is set to TRUE. The optimizer generates a plan for a SQL statement but does not find a matching plan in the SQL plan baseline. Which two operations are performed by the optimizer in this scenario?（）AThe optimizer adds the new plan to the plan history.BThe optimizer selects the new plan for the execution of the SQL statement.CThe optimizer adds the new plan to the SQL plan baseline as an accepted plan.DThe optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state.EThe optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with the lowest cost.
考题
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
考题
多选题可以使用C=0sampling plan抽检生产产品有：（）。A连续生产的产品BLotby Lot生产的产品C库存产品D以上都可以
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