ote the following structures in your database server：
1：Extents
2：OS Blocks
3：Tablespace
4：Segments
5：Oracle Data Block
Which option has the correct arrangement of these structures from the smallest to the largest（）
A.2， 5， 1， 4， 3
B.1， 2， 3， 4， 5
C.5， 2， 1， 3， 4
D.2， 1， 5， 4， 3
您可能感兴趣的试卷
你可能感兴趣的试题
A.external table
B.partitioned table
C.partitioned index
D.nonclustered table
E.global temporary table
A.Each segment contains one or more extents.
B.Multiple tablespaces can share a single data file.
C.A data block is the smallest unit of input/output （I/O） in data files.
D.It is possible to have tablespaces of different block sizes in a database.
E.Each data block in the database always corresponds to one operating system block.
You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows： Warning （%）： 90
Critical （%）： 95
Which background process is responsible for issuing alerts when the threshold is crossed（）
A.System monitor （SMON）
B.Process monitor （PMON）
C.Memory manager process （MMAN）
D.Manageability Monitor process （MMON）
A.It is possible to have multiple database writers in an Oracle instance.
B.It writes dirty buffers， if any， to data files whenever a checkpoint occurs.
C.It writes dirty buffers， if any， to data files whenever a transaction commits.
D.It writes dirty buffers， if any， to data files before the log writer （LGWR） writes.
View the Exhibit and identify the component marked with a question mark. （）
A.Checkpoint （CKPT）
B.Process Monitor （PMON）
C.Archiver Processes （ARCn）
D.Recoverer Process （RECO）
E.Memory Manager process （MMAN）
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（）
A.Checkpoint （CKPT）： 1， 2， 5
B.System Monitor （SMON）： 1， 6
C.Process Monitor （PMON）： 4， 6， 7
D.Database Writer （DBWR）： 1， 3， 4
Note the following functionalities of various background processes：
1：Record the checkpoint information in data file headers. CKPT
2：Perform recovery at instance startup. SMON
3：Cleanup unused temporary segments. SMON
4：Free the resources used by a user process when it fails.
5：Dynamically register database services with listeners.
6：Monitor sessions for idle session timeout.
Which option has the correct functionalities listed for a background process（）
A.Archiver Process （ARCn）：1， 2，5
B.System Monitor Process （SMON）：1，4，5
C.Process Monitor Process （PMON）：4，5，6
D.Database Writer Process （DBWn）：1，3，4
A.Shared SQL Area will be allocated in the shared pool.
B.Shared SQL Area will be allocated when a session starts.
C.Shared SQL Area will be allocated in the large pool always.
D.Private SQL Area will be allocated in the Program Global Area （PGA） always.
E.Shared SQL Area and Private SQL Area will be allocated in the PGA or large pool.
F.The number of Private SQL Area allocations is dependent on the OPEN_CURSORS parameter.
These are points that describe the contents of different memory components:
1: Descriptive information or metadata about schema objects that are queried by using SQL statements
2: The run-time area for data manipulation language (DML) or data definition language (DDL) statements
3: Results of SQL queries and PL/SQL functions
4: Executable forms of SQL cursors, PL/SQL programs, and Java classes
5: The information necessary to reconstruct changes made to the database by a transaction
Which of these will be stored in theShared Poolif the necessary configurations are done（）
A.1 and 2
B.2 and 5
C.1，3，and 4
D.3，4，and 5
E.1，2，3，and 4
You have executed this command to change the size of the database buffer cache： SQL> ALTER SYSTEM SET DB_CACHE_SIZE=2516582； System altered.
To verify the change in size， you executed this command： SQL> SHOW PARAMETER DB_CACHE_SIZE NAME TYPE VALUE
------------------- ----------- ------------------
db_cache_size big integer 4194304 （4M）
Why is the value set to 4194304 and not to 2516582（）
A.because 4194304 is the granule size
B.because 4194304 is the standard block size
C.because 4194304 is the largest nonstandard block size defined in the database
D.because 4194304 is the total size of data already available in the database buffer cache
最新试题
You want to configure and schedule offline database backups to run automatically. Which tool or utility wouldyou use to achieve this（）
The database instance has the following parameter setting：OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE REMOTE_OS_AUTHENT = FALSEREMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0 You have a local operating system user SKD.You create a database user OPS$SKD， and then assign external authentication. The user OPS$SKD has theCREATE SESSION privilege. What would you achieve by the above process（）
In which situation is the UNDO_RETENTION parameter be ignored， even if it is set to a value（）
Which kinds of failures make the Data Recovery Advisor （DRA） generate a manual checklist？（）
Which statements are true about checkpointing（）
You have two database servers SEMP and SACCT. The database in the SEMP server maintains the employeeinformation and the database in the SACCT server maintains the accounts payable information. The employeessubmit the expense reports to the accounts payable department. A user of the accounts payable databasewants to extract the employee information from the database in the SEMP server for cross-verification. Whichschema object enables the user to access the information from the remote database（）
View the Exhibit. You are creating an additional database by using the Database Configuration Assistant（DBCA）. You opted to create a General Purpose database and during the database creation realize that theBlock Size field is not enabled. What could be the reason for this（）
Automatic Shared Memory Management is disabled for your database instance. You realize that there arecases of SQL statements performing poorly because of repeated parsing activity， resulting in degradation ofperformance. What would be your next step to improve performance（）
View the Exhibit and examine the attributes of an undo tablespace. In an OLTP system, the user SCOTT hasstarted a query on a large table in the peak transactional hour that performs bulk inserts. The query runs formore than 15 minutes and then SCOTT receives the following error:ORA-01555: snapshot too oldWhat could be the reason for this error（）
Examine the command that is used to create a table：SQL> CREATE TABLE orders（oid NUMBER（6） PRIMARY KEY， odate DATE， ccode NUMBER （6）， oamtNUMBER（10，2）） TABLESPACE users；Which two statements are true about the effect of the above command（）