ARCH
SMON
LGWR
SERVER
第1题:
Note the functionalities of various background processes: 1:Perform recovery at instance startup. SMON 2:Free the resources used by a user process when it fails. PMON 3:Cleanup the database buffer cache when a process fails. PMON 4:Dynamically register database services with listeners. PMON 5:Monitor sessions for idle session timeout. PMON 6:Cleanup unused temporary segments. SMON 7:Record the checkpoint information in control file. CKPT Which option has the correct functionalities listed for a background process()
第2题:
Which is the correct description of a pinned buffer in the database buffer cache()
第3题:
Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query:SQL> SELECT * FROM sales;Which process would retrieve the result from the database and return it to the client program?()
A. User process
B. Server process
C. System Monitor (SMON)
D. Process Monitor (PMON)
E. Checkpoint process (CKPT)
第4题:
Which three statements are true about memory buffer allocation by a MySQL Server?()
第5题:
Automatic Shared Memory Management (ASMM) has been enabled for your database instance. Theinitialization parameters for the components that are managed by ASMM are not set. After observing theeffects of ASSM, you executed the following command: SQL> ALTER SYSTEM SET DB_CACHE_SIZE = 100M; Which statement is true in this scenario()
第6题:
Upgrading which of the following components in a server has the GREATEST affect on virtualization?()
第7题:
Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL> SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?()
第8题:
A.Global buffers such as the InnoDB buffer pool are allocated after the server starts, and are never freed
B.Thread buffers are allocated when a client connects, and are freed when the client disconnects
C.Buffers that are needed for certain operation are allocated when the operation starts, and freed when it ends
D.User buffers are allocated at server startup and freed when the user is dropped
E.All dynamic buffers that are set with a SET GLOBAL statement immediately get allocated globally, and are never freed
第9题:
During regular database operation, which background process will take smaller blocks of free space in a dictionary-managed tablespace and move things around to make bigger pieces of free space?()
第10题:
Flushing dirty buffers out of the buffer cache is influenced to the greatest extent by which of the following process?()