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【多选题】

What is true about a background engine? （）(Choose two.)

A、It is a server-side PL/SQL procedure.

B、When executing a PL/SQL function activity, it will automatically ping (cache) the PL/SQL code.

C、It executes deferred activities in decreasing order of their Cost property value (activities with higher cost value are processed first).

D、It would fail if another background engine process is started to handle the same type of activities within the same item type.

E、During its single invocation, it processes activities that were stuck, deferred or timed out when the background engine was started.

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更多“What is true about a background engine? （）(Choose two.)”相关的问题
第1题
[] Given: What is the result?（） Given: What is the result?（）

A、A.true true  B、B.false true  C、C.true false  D、D.false false  E、E.Compilation fails.  F、F. An exception is thrown at runtime.  

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第2题
[] Evaluate the set of SQL statements: What is true about the set?（） Evaluate the set of SQL statements: What is true about the set?（）

A、A. The DESCRIBE DEPT statement displays the structure of the DEPT table.  B、B. The ROLLBACK statement frees the storage space occupies by the DEPT table.  C、C. The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.  D、D. The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.  

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第3题
[] Given： What is the result？（） Given： What is the result？（）

A、A.true true  B、B.false true  C、C.true false  D、D.false false  

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第4题
[单选题] What is true about sequences?（）

A、The start value of the sequence is always 1.  B、A sequence always increments by 1.  C、The minimum value of an ascending sequence defaults to 1.  D、The maximum value of descending sequence defaults to 1.  

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第5题
[单选题] What is true about sequences? （）

A、The start value of the sequence is always 1.  B、A sequence always increments by 1.  C、The minimum value of an ascending sequence defaults to 1.  D、The maximum value of descending sequence defaults to 1.  

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第6题
[多选题] When defining a function activity, what is true about the Result Type?（） (Choose two.)

A、Result Type is optional.  B、Result Type is mandatory.  C、Result Type can be changed after it is assigned to the function activity.  D、Result Type should belong to the same item type as the function activity  

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第7题
[单选题] What is true about a Bypass Tunnel in MPLS Fast Reroute?（）

A、Only configured on the egress router  B、Only configured on the ingress router  C、Is pre-signalled to reduce packet loss  D、Must intersect the primary LSP at two locations  

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第8题
[] Which statement is true about the plan being loaded into the SQL baseline by the above command?（） Which statement is true about the plan being loaded into the SQL baseline by the above command?（）

A、A. It is loaded with the FIXED status.  B、B. It is loaded with the ACCEPTED status.  C、C. It is not loaded with the ENABLED status.  D、D.It is not loaded with the ACCEPTED status.  

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第9题
[单选题] What is the result？（）

A、true,true  B、false,true  C、true,false  D、false,false  E、Compilation fails.  F、An exception is thrown at runtime.  

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第10题
[单选题] What is true about sequences?（）

A、Once created, a sequence belongs to a specific schema.  B、Once created, a sequence is linked to a specific table.  C、Once created, a sequence is automatically available to all users.  D、Only the DBA can control which sequence is used by a certain table.  E、Once created, a sequence is automatically used in all INSERT and UPDATE statements.  

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