1Z0-082ブレーン問題集PDF、Oracle 1Z0-082試験問題豪華お試しセット
2022年最新された1Z0-082サンプル問題は信頼され続ける1Z0-082テストエンジン
Oracle 1Z0-082 認定試験の出題範囲：
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質問 30
Which three statements are true about the Oracle join and ANSI join syntax? (Choose three.)
- A. The Oracle join syntax supports natural joins
- B. The SQL:1999 compliant ANSI join syntax supports creation of a Cartesian product of two tables
- C. The Oracle join syntax performs less well than the SQL:1999 compliant ANSI join syntax
- D. The Oracle join syntax supports creation of a Cartesian product of two tables
- E. The SQL:1999 compliant ANSI join syntax supports natural joins
- F. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax
- G. The Oracle join syntax only supports right outer joins
正解: B,D,E
解説:
https://oracle-base.com/articles/9i/ansi-iso-sql-support
質問 31
You execute this command:
Sufficient storage is available in filesystem /u01.
Which two statements are true about the BIG_TBStablespace? (Choose two.)
- A. AUTOEXTEND is possible for the datafile
- B. It will always have a 32K blocksize
- C. It must be bigger than the largest SMALLFILE tablespace
- D. Additional data files may not be added
- E. It will be a dictionary-managed tablespace by default
正解: A,C
質問 32
You want to apply the principle of Least Privilege in all your live databases.
One of your requirements is to revoke unnecessary privileges from all users who have them using Privilege Analysis.
Which three types of analyses can be done using the DBMS_PRIVILEGE_CAPTURE package? (Choose three.)
- A. analysis of privileges granted indirectly to a role that are then used by a user who has been granted that role
- B. analysis of all privileges used by all users including administrative users in the database
- C. analysis of privileges granted directly to a role that are then used by a user who has been granted that role
- D. analysis of privileges that a user has on their own schema objects that they did not use
- E. analysis of all privileges used by all users but excluding administrative users in the database
- F. analysis of privileges that a user has on their own schema objects that they did use
正解: A,C,E
解説:
https://docs.oracle.com/en/database/oracle/oracle-database/19/dbseg/performing-privilege-analysis-find-privilege-use.html#GUID-AD683DDB-D345-4702-B1F4-37B79F276B66
質問 33
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:
What must you do so that KING is authenticated by the OS when connecting to the database instance?
- A. Have the OS administrator add KING to the OSDBA group
- B. Unset REMOTE_LOGIN_PASSWORDFILE
- C. Set OS_AUTHENT_PREFIX to OPS$
- D. Alter user KING to be IDENTIFIED EXTERNALLY
- E. Grant DBA to KING
正解: C
解説:
https://oracle-base.com/articles/misc/os-authentication
質問 34
Which two are true about shrinking a segment online? (Choose two.)
- A. To shrink a table it must have a PRIMARY KEY constraint
- B. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
- C. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
- D. To shrink a table it must have a UNIQUE KEY constraint
- E. It always eliminates all migrated rows if any exist in the table
- F. To shrink a table it must have row movement enabled
正解: A,F
質問 35
Examine these commands:
Which two statements are true about the sqlldrexecution? (Choose two.)
- A. It generates a log that contains control file entries, which can be used with normal SQL*Loader operations
- B. It overwrites data in EMP with data in EMP.DAT
- C. It generates a sql script that it uses to load data from EMP.DAT to EMP
- D. It appends data from EMP.DAT to EMP
- E. It uses the database buffer cache to load data
正解: C,E
質問 36
Examine this command:
Which two statements are true? (Choose two.)
- A. The tablespace containing SALES1.DBF must be altered READ ONLY before executing the command.
- B. DML may be performed on tables with one or more extents in this data file during the execution of this command.
- C. The file is renamed and stored in the same location
- D. The tablespace containing SALES1.DBF must be altered OFFLINE before executing the command.
- E. If Oracle Managed Files (OMF) is used, then the file is renamed but moved to DB_CREATE_FILE_DEST.
正解: A,B
質問 37
View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.
You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.
Examine this SQL statement:
Exhibit 1.
Exhibit 2.
What will be the result?
- A. It executes successfully and gives the required result
- B. It gives an error because the ALL keyword is not valid
- C. It executes successfully but does not give the required result
- D. It gives an error because the GROUP BY clause is not valid
正解: A
質問 38
Which three statements are true about the tools used to configure Oracle Net Services? (Choose three.)
- A. The lsnrctl utility requires a listener.ora file to exist before it is started
- B. Enterprise Manager Cloud Control can be used to centrally configure listeners on any managed database server
- C. The Oracle Net Configuration Assistant is only used when running the Oracle installer
- D. Oracle Net Manager can be used to centrally configure listeners on any database server target
- E. Oracle Net Manager can be used to locally configure naming methods on a database server
- F. Enterprise Manager Cloud Control can be used to centrally configure net service names for any database server target
正解: B,E,F
解説:
https://docs.oracle.com/en/database/oracle/oracle-database/19/netag/introducing-oracle-net-services.html#GUID-6B1F0584-887D-4D2A-B982-40ACF15DF985
* Oracle Enterprise Manager Cloud Control combines configuration functionality across multiple file systems, along with listener administrative control to provide an integrated environment for configuring and managing Oracle Net Services. * Oracle Net Manager provides configuration functionality for an Oracle home on a local client or server host.
質問 39
In the spfile of a single instance database, LOCAL_LISTENER is set to LISTENER_1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:
Which statement is true?
- A. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port
1521 on the same host as the database instances - B. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration
- C. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration
- D. The LREG process registers services dynamically with the LISTENER_1 listener
- E. Dynamic service registration cannot be used for this database instance
正解: C
解説:
https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292
質問 40
Examine these commands:
Which two statements are true about the sqlldrexecution? (Choose two.)
- A. It generates a log that contains control file entries, which can be used with normal SQL*Loader operations
- B. It overwrites data in EMP with data in EMP.DAT
- C. It generates a sql script that it uses to load data from EMP.DAT to EMP
- D. It appends data from EMP.DAT to EMP
- E. It uses the database buffer cache to load data
正解: C,E
質問 41
You execute this command:
During the export operation, you detach from the job by using CTRL+C and then execute this command:
Export> STOP_JOB=immediate
Are you sure you wish to stop the job ([yes]/no): yes
Which two statements are true about the job? (Choose two.)
- A. It terminates
- B. You can reattach to it and monitor it
- C. You can no longer monitor it
- D. It is paused and can be resumed
- E. It continues to run in the background
正解: A,C
解説:
Explanation/Reference: https://blog.oracle48.nl/killing-and-resuming-datapump-expdp-and-impdp-jobs/
質問 42
Which three activities are recorded in the database alert log? (Choose three.)
- A. non-default database parameters
- B. session logins and logouts
- C. deadlock errors
- D. block corruption errors
- E. Data Definition Language (DDL) statements
正解: A,C,D
解説:
Reference:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/monitoring001.htm#ADMIN11247
質問 43
Examine the description of the CUSTOMERS table:
You want to display details of all customers who reside in cities starting with the letter D followed by at least two characters.
Which query can be used?
- A. SELECT * FROM customers WHERE city LIKE 'D_%';
- B. SELECT * FROM customers WHERE city LIKE 'D_';
- C. SELECT * FROM customers WHERE city = '%D_';
- D. SELECT * FROM customers WHERE city = 'D_%';
正解: A
質問 44
You have been tasked to create a table for a banking application.
One of the columns must meet three requirements:
* Be stored in a format supporting date arithmetic without using conversion functions
* Store a loan period of up to 10 years
* Be used for calculating interest for the number of days the loan remains unpaid Which data type should you use?
- A. TIMESTAMP WITH TIMEZONE
- B. TIMESTAMP WITH LOCAL TIMEZONE
- C. INTERVAL YEAR TO MONTH
- D. INTERVAL DAY TO SECOND
- E. TIMESTAMP
正解: D
質問 45
You want to use table compression suitable for OLTP that will:
1. Compress rows for all DML statements on that table
2. Minimize the overheads associated with compression
Which compression option is best suited for this?
- A. ROW STORE COMPRESS ADVANCED
- B. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- C. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- D. COLUMN STORE COMPRESS FOR QUERY LOW
- E. ROW STORE COMPRESS BASIC
正解: A
解説:
https://www.oracle.com/technetwork/database/options/compression/advanced-compression- wp-
12c-1896128.pdf
質問 46
Which two are true about a SQL statement using SET operators such as UNION? (Choose two.)
- A. The names and number of columns must be identical for all SELECT statements in the query.
- B. The data type group of each column returned by the second query must match the data type of the corresponding column returned by the first query.
- C. The number, but not names, of columns must be identical for all SELECT statements in the query.
- D. The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query.
- E. The data type of each column returned by the second query must exactly match the data type of the corresponding column returned by the first query.
正解: D,E
質問 47
Which two statements are true about date/time functions in a session where NLS_DATE_FORMAT is set to DD-MON-YYYY HH24:MI:SS? (Choose two.)
- A. CURRENT_TIMESTAMP returns the same date and time as SYSDATE with additional details of fractional seconds
- B. SYSDATE can be used in expressions only if the default date format is DD-MON-RR
- C. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE
- D. SYSDATE can be queried only from the DUAL table
- E. CURRENT_DATE returns the current date and time as per the session time zone
- F. SYSDATE and CURRENT_DATE return the current date and time set for the operating system of the database server
正解: D,E
質問 48
A database is configured to use automatic undo management with temporary undo enabled.
An UPDATE is executed on a temporary table.
Where is the UNDO stored?
- A. in the SYSAUX tablespace
- B. in the undo tablespace
- C. in the PGA
- D. in the temporary tablespace
- E. in the SGA
正解: B
解説:
https://docs.oracle.com/database/121/ADMIN/undo.htm#ADMIN11478 (16.7)
質問 49
Which two are true about instance recovery for a database that is open in read write mode?
(Choose two.)
- A. No users can log on until instance recovery has completed.
- B. Only the CURRENT REDO log group is required to perform instance recovery.
- C. It is guaranteed to complete within fast_start_mttr_target number of seconds.
- D. It always occurs during instance startup performed immediately after a SHUTDOWN ABORT.
- E. It is always performed when opening a database.
- F. The database opens after the roll forward phase of instance recovery has completed.
正解: D,E
質問 50
Examine this description of the TRANSACTIONS table:
Which two SQL statements execute successfully? (Choose two.)
- A. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount + 100 DUES FROM transactions;
- B. SELECT customer_id AS `CUSTOMER-ID', transaction_date AS DATE, amount + 100 `DUES AMOUNT' FROM transactions;
- C. SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + 100
"DUES AMOUNT" FROM transactions; - D. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount + 100 "DUES" FROM transactions;
- E. SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount + 100 DUES FROM transactions;
正解: A,E
質問 51
The CUSTOMERS table has a CUST_CREDIT_LIMIT column of data type NUMBER.
Which two queries execute successfully? (Choose two.)
- A. SELECT NVL(cust_credit_limit * .15, `Not Available') FROM customers;
- B. SELECT NVL2(cust_credit_limit * .15, `Not Available') FROM customers;
- C. SELECT NVL2(cust_credit_limit, TO_CHAR(cust_credit_limit * .15), `Not Available') FROM customers;
- D. SELECT NVL(TO_CHAR(cust_credit_limit * .15), `Not Available') FROM customers;
- E. SELECT TO_CHAR(NVL(cust_credit_limit * .15, `Not Available')) FROM customers;
正解: B,D
質問 52
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