1Z0-053
单选题Tape streaming is not happening while performing RMAN tape backup. On investigation， you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough. What could be a
题目
Configure backup optimization
Configure the channel to increase MAXOPENFILES
Configure the channel to increase the capacity with the RATE parameter
Configure the channel to adjust the tape buffer size with the BLKSIZE option
相似问题和答案
第1题：
You issued the following commands to configure setting in RMAN;Then you issued the following command to take the backup:RMAN> BACKUP DATABASE PLUS ARCHIVELOG;Which statement is true about the execution of the above command?（）
A. The backup will terminate because the FORMAT clause was not configured for the channel
B. It backs up two copies of data files to tape and disk, and two copies of archived log file on tape
C. It backs up the data files and archived log files to disk, making two copies of each data file and archived log file
D. It backs up the data files and archived log files to tape, making two copies of each data file and archived log file
第2题：
You issued the following commands to configure setting in RMAN;RMAN> CONFIGURE DEVICE TYPE sbt PARALLELISM 1;RMAN> CONFIGURE DEFAULT DEVICE TYPE TO sbt;RMAN> CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE sbt TO 2;RMAN> CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE sbt TO 2;RMAN> CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2;Then you issued the following command to take the backup:RMAN> BACKUP DATABASE PLUS ARCHIVELOG;Which statement is true about the execution of the above command?（）
A. The backup will terminate because the FORMAT clause was not configured for the channel
B. It backs up two copies of data files to tape and disk, and two copies of archived log file on tape
C. It backs up the data files and archived log files to disk, making two copies of each data file and archived log file
D. It backs up the data files and archived log files to tape, making two copies of each data file and archived log file
第3题：
A. The tape I/O performed is asynchronous
B. The tape buffer is allocated from the System Global Area (SGA)
C. The tape buffer is allocated from the Program Global Area (PGA)
D. Oracle I/O uses an interrupt mechanism to determine when each I/O completes
第4题：
You are tuning RMAN to optimize performance. You want tape I/O to be asynchronous when you perform tape backups. Which action should you take？（）
- A、 Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE
- B、 Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE
- C、 Use compression when performing tape backups
- D、 Configure multiple SBT channels
正确答案:B
第5题：
The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session？（）
- A、 The tape I/O performed is asynchronous
- B、 The tape buffer is allocated from the System Global Area （SGA）
- C、 The tape buffer is allocated from the Program Global Area （PGA）
- D、 Oracle I/O uses an interrupt mechanism to determine when each I/O completes
正确答案:C
第6题：
A. Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE
B.Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE
C. Use compression when performing tape backups
D. Configure multiple SBT channels
第7题：
Which of the following BEST describes the difference between differential and incremental backups？（）
- A、 An incremental backup requires fewer tapes for restoration than a differential backup.
- B、 A differential backup tape takes less time than an incremental backup tape.
- C、 A differential backup requires fewer tapes for restoration than an incremental backup.
- D、 An incremental backup tape costs less than a differential backup tape.
正确答案:C
第8题：
Tape streaming is not happening while performing RMAN tape backup. On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough.What could be a solution to make tape streaming happen during the backup?（）
A. Configure backup optimization
B. Configure the channel to increase MAXOPENFILES
C. Configure the channel to increase the capacity with the RATE parameter
D. Configure the channel to adjust the tape buffer size with the BLKSIZE option
第9题：
You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for Recovery Manager (RMAN). To accomplish the backup, you issued the following RMAN command: RMAN> BACKUP SECTION SIZE 300M TABLESPACE users; Which two statements are true about the execution of the above command? （）(Choose two.)
- A、The backup piece size will be limited to 300 MB
- B、The RMAN uses multiplexing to perform backup
- C、The operation is accomplished using the default channel available
- D、The RMAN parallelizes the backup although the parallelism is not set for a channel
正确答案:A,C
第10题：
You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for the RMAN. To accomplish the backup， you issued the following RMAN command： RMAN> BACKUP SECTION SIZE 300M TABLESPACE users； Which two statements are true regarding the execution of the above command？（）
- A、 The RMAN parallelizes the backup although the parallelism is not set for a channel.
- B、 The backup piece size will be limited to 300 MB.
- C、 The operation is accomplished using the default channel available.
- D、 Three channels for the tape drive must be configured by setting the parallelism to three.
正确答案:B,C