OCP-1Z0-053-V12 02-20題
阿新 • • 發佈：2018-12-22
20.View the Exhibit and examine the resource consumption details for the current plan in use by the
database instance.
Which two statements are true based on the output? (Choose two.)
Exhibit:
A. An attempt to start a new session by the user belonging to DSS_QUERIES fails with an error
B. A user belonging to DSS_QUERIES can log in to a new session but the session will be queued
C. The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for
the CPU due to resource management
D. The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for
the CPU due to resource management, I/O waits, and latch or enqueue contention
Answer: BC
答案解析：
V$RSRC_CONSUMER_GROUP：包含所有活動組統計資訊的檢視
下面簡要描述了此檢視中的部分列：• name：使用者組的名稱。• active_sessions：此使用者組中的當前活動會話數。• execution_waiters：等待時間片斷的活動會話數。• requests：此使用者組中累計執行的請求數。QUEUE_LENGTH：Number of sessions waiting in the queue：在佇列中等待的會話數。CPU_WAIT_TIME：Cumulative amount of time that sessions waited for CPU because of resource management. This does not include waits due to latch or enqueue contention, I/O waits, and so on.