Exam Code: 1Z0-053 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Oracle Database 11g: Administration II
Certification Provider: Oracle
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2021 Oct dumps for 1z0-053:
Q281. Which two statements are true regarding the functionality of the remap command in ASMCMD?
A. It repairs blocks that have read disk I/O errors.
B. It checks whether the alias metadata directory and the file directory are linked correctly.
C. It repairs blocks by always reading them from the mirror copy and writing them to the original location.
D. It reads the blocks from a good copy of an ASM mirror and rewrites them to an alternate location on disk if the blocks on the original location cannot be read properly.
Q282. You are using Recovery Manager (RMAN) to perform backups. In which three situations would you perform a compressed backup? (Choose three.)
A. You are backing up to tape and your tape device performs its own compression.
B. You are making image copies, and you have not enabled tablespace compression.
C. You are using disk-based backups and disk space in your Flash Recovery Area, or other disk- based backup destinations are limited.
D. You are performing your backups to some device over a network where reduced network bandwidth is more important than CPU usage.
E. You are using some archival backup media, such as CD or DVD, where reducing backup sizes saves media costs and archival storage.
Q283. Examine the following ALTER command:
SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS;
What is the purpose of the command?
A. It cancels all pending disk drops within the disk group.
B. It restores disks that are being dropped as the result of a DROP DISKGROUP operation
C. It mounts disks in the disk group for which the drop-disk operation has already been co pleted
D. It restores all the dropped disks in the disk group for which the drop-disk operation has already been completed
E. It adds previously dropped disks back into the disk group
Q284. Which command will restore all datafiles to the date 9/30/2008 at 18:00 hours?
A. restore datafiles until time '09/28/2008:21:03:11'
B. restore database files until time '09/28/2008:18:00:00'
C. restore database until time '09/28/2008:18:00:00'
D. recover database until time '09/28/2008:18:00:00'
E. recover database until timestamp '09/28/2008:18:00:00'
Q285. What is the purpose of the until change option of the restore command?
A. It allows you to select the SCN that you want to restore to.
B. It allows you to select the log sequence number you want to restore to.
C. It allows you to select the timestamp you want to restore to.
D. It allows you to manually stop the restore at any time as online redo logs are applied.
E. None of the above.
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Q286. You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?
A. The Automatic Memory Manager (AMM)
B. The SQL Tuning Advisor
C. The Segment Advisor
D. The SQL Access Advisor
Q287. You want to migrate your database to ASM, so you've done a clean shutdown, made a closed backup of the entire database, noted the location of your control files and online redo log files, and changed your spfile to use OMF. The last step is to run an RMAN script to do the conversion. Using the following steps, what is the correct order in which the following RMAN commands should be executed?
1. STARTUP NOMOUNT
2. ALTER DATABASE OPEN RESETLOGS
3. SQL "ALTER DATABASE RENAME `logfile1 path' TO `+dgrp4 `" # plus all other logfiles
4. SWITCH DATABASE TO COPY
5. BACKUP AS COPY DATABASE FORMAT `+dgrp4'
6. ALTER DATABASE MOUNT
7. RESTORE CONTROLFILE FROM `controlfile_location'
A. 2, 5, 3, 1, 7, 6, 4
B. 1, 7, 6, 5, 4, 3, 2
C. 5, 1, 2, 7, 4, 6, 3
D. 7, 3, 1, 5, 6, 2, 4
Q288. Which of the following statements are true about the BACKUP command? (Choose all that apply.)
A. The BACKUP command can not be used to make image copies of a datafile.
B. The BACKUP command can improve performance by multiplexing backup files.
C. The BACKUP can take advantage of the block-change tracking capability.
D. The BACKUP command cannot store data in incremental backups.
E. The BACKUP command can store data in cumulative incremental backups only.
Q289. Which operation requires that you create an auxiliary instance manually before executing the operation? (Choose all that apply.)
A. Backup-based database duplication.
B. Active database duplication.
C. Tablespace point-in-time recovery.
D. No operation requires the creation of an auxiliary instance.
Q290. A user sends you an email with the following error message:
create table idtable(id number)
ERROR at line 1:
ORA-01116: error in opening database file 4
ORA-01110: data file 4: `/oracle01/oradata/orcl/users01.dbf'
ORA-27041: unable to open file
Linux Error: 2: No such file or directory
Additional information: 3
You can choose from the following steps:
a. Restore the missing database datafiles.
b. Take the missing datafile offline.
c. Shut down the database.
d. Issue the recover tablespace USERS command.
e. Issue the Startup Mount command to mount the database.
f. Bring the USERS tablespace online.
g. Issue the alter database open command.
Which is the correct order of these steps in this case?
A. b, a, d, f
B. c, a, e, b, d, f, g
C. c, e, d, g
D. b, d, f
E. e, d, g
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