单选题You want to use RMAN to create compressed backups.Which statement is true about the compression algorithms that RMAN can use?（）AThe BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.BThe ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.CThe ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.DOnly the BZIP2 compression algorithm can be used to make compressed backups to disk.
单选题
You want to use RMAN to create compressed backups.Which statement is true about the compression algorithms that RMAN can use?（）
A
The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.
B
The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.
C
The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.
D
Only the BZIP2 compression algorithm can be used to make compressed backups to disk.
参考解析
解析：
暂无解析
相关考题：
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 FALSEB.Set the BACKUP_TAPE_IO_SLAVES parameter to TRUEC. Use compression when performing tape backupsD. Configure multiple SBT channels
You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database.Which two statements are true about this backup operation? ()(Choose two.) A. Backup compression should be enabledB. Parallelism for the channel should be set to 2C. All the files must be backed up as backup setsD. The backup may be stored either on disk or on media with media manager
Which statement is true about compression subnets?() A. Compression subnets are turned on by default.B. Compression subnets advertise remote routes.C. Compression subnets are usually LAN-side subnets.D. Compression subnets are usually WAN-side subnets.
Which statement is true about compression subnets?（）A、Compression subnets are turned on by default.B、Compression subnets advertise remote routes.C、Compression subnets are usually LAN-side subnets.D、Compression subnets are usually WAN-side subnets.
Which two statements regarding compressed backups in Recovery Manager （RMAN） are true？（）A、 Backup compression is disabled by default.B、 Backup compression can be used with both backup sets and image copies.C、 Backup compression cannot be enabled using the CONFIGURE command.D、 Backup compression works only if the COMPATIBILITY parameter is set to 9.0.0.0 or higher.E、 Backup compression applies to only backup sets.F、 Backup compression applies to only image copies.
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 FALSEB、 Set the BACKUP_TAPE_IO_SLAVES parameter to TRUEC、 Use compression when performing tape backupsD、 Configure multiple SBT channels
You want to use RMAN to create compressed backups.Which statement is true about the compression algorithms that RMAN can use?（）A、The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.B、The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.C、The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.D、Only the BZIP2 compression algorithm can be used to make compressed backups to disk.
You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database. Which two statements are true about this backup operation? （）(Choose two.)A、Backup compression should be enabledB、Parallelism for the channel should be set to 2C、All the files must be backed up as backup setsD、The backup may be stored either on disk or on media with media manager
You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database.Which two statements are true about this backup operation?（）A、Backup compression should be enabledB、Parallelism for the channel should be set to 2C、All the files must be backed up as backup setsD、The backup may be stored either on disk or on media with media manager
You want to use RMAN to create compressed backups. Which statement is true about the compression algorithms that RMAN can use？（）A、 The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.B、 The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.C、 The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.D、 Only the BZIP2 compression algorithm can be used to make compressed backups to disk.
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 FALSEB、Set the BACKUP_TAPE_IO_SLAVES parameter to TRUEC、Use compression when performing tape backupsD、Configure multiple SBT channels
A shoot-out has erupted between your MS development teams using .NET and your Linux development teams using Java. Knowing that your database is in danger，which command would you use to back up your NOARCHIVELOG mode database using RMAN with compression？（）A、 backup database allB、 backup compressed databaseC、 backup as compressed backupset databaseD、 backup as compressed backup database plus archivelog allE、 backup as compressed backupset database plus compress archivelog all
Which statement about the enabling of table compression in Oracle Database 11g is true?（）A、Compression can be enabled at the table, tablespace, or partition level for direct loads only.B、Compression can be enabled only at the table level for both direct loads and conventional DML.C、Compression can be enabled at the table, tablespace, or partition level for conventional DML only.D、Compression can be enabled at the table, tablespace, or partition level for both direct loads and conventional DML.
You are using Recovery Manager (RMAN) to perform backups. In which three situations would you perform a compressed backup?（）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.
You administer a SQL Server 2008 instance. You deploy a new database named Engineering. The Engineering database manages large documents that will be revised occasionally. You need to design a table structure that allows fast read access. You also need to minimize storage space requirements. Which two actions should you perform?（）A、Use NTFS file system compression on the volume.B、Use row-level compression on the document table.C、Use varbinary(MAX) data type with FILESTREAM storage.D、Enable row-level compression on all columns that use the vardecimal() data type.
You have some compressed bitmap files in a directory of your Windows 2000 Professional computer. The file compression has reduced their size from 2 MB to 1 MB. You attempt to copy them to a floppy disk, but an error reports that the destination drive is full. How can you copy the bitmap files to a 1.44 MB floppy disk? （）A、Use a third-party file compression utility to create a compressed archive containing the bitmap files. Copy the compressed archive to the floppy disk.B、Create an empty compressed folder on the floppy disk， and copy the files to the new folder.C、Format the floppy disk as NTFS， and restart the copy operation.D、Confirm that the cluster size on the NTFS volume is greater than 32k.
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a n On-Line Analytical Processing （OLAP） database named in the instance. The database contains a dimension table named Clients. Ever hour backup of data of the Clients table is performed. But the Clinets table contains redundant data. You must keep the disk space used to store the Clients table. In the options below， which compression technology should you use？（）A、You should use row compression B、You should use page compression C、You should use backup compression D、You should use windows NTFS file system compression
单选题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 FALSEB Set the BACKUP_TAPE_IO_SLAVES parameter to TRUEC Use compression when performing tape backupsD Configure multiple SBT channels
单选题Which statement is true regarding the remote route table of a local WX device?（）ARemote routes are the compression subnets advertised by remote WX devices.BRemote routes include routes for remote hosts or subnets advertised by a WAN router.CRemote routes are the routes advertised by remote routers that are more than two hops away.DRemote routes are the compression subnets advertised by the local WX device to the remote WX devices.
多选题You are using Recovery Manager (RMAN) to perform backups. In which three situations would you perform a compressed backup?（）AYou are backing up to tape and your tape device performs its own compression.BYou are making image copies, and you have not enabled tablespace compression.CYou are using disk-based backups and disk space in your Flash Recovery Area, or other disk-based backup destinations are limited.DYou are performing your backups to some device over a network where reduced network bandwidth is more important than CPU usage.EYou are using some archival backup media, such as CD or DVD, where reducing backup sizes saves media costs and archival storage.
单选题Which statement about the enabling of table compression in Oracle Database 11g is true？（）A Compression can be enabled at the table， tablespace， or partition level for direct loads only.B Compression can be enabled only at the table level for both direct loads and conventional DML.C Compression can be enabled at the table， tablespace， or partition level for conventional DML only.D Compression can be enabled at the table， tablespace， or partition level for both direct loads and conventional DML.
单选题Which of the following relationships should occur between the temperature developed in a combustion space, and the compression ratio of the engine?（）AHigher compression ratios create higher temperatureBHigher temperatures create higher compression ratiosClow temperatures create higher compression ratiosDHigher compression ratios create low temperatures
单选题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?（）ASet the BACKUP_TAPE_IO_SLAVES parameter to FALSEBSet the BACKUP_TAPE_IO_SLAVES parameter to TRUECUse compression when performing tape backupsDConfigure multiple SBT channels
单选题You have some compressed bitmap files in a directory of your Windows 2000 Professional computer. The file compression has reduced their size from 2 MB to 1 MB. You attempt to copy them to a floppy disk, but an error reports that the destination drive is full. How can you copy the bitmap files to a 1.44 MB floppy disk? （）AUse a third-party file compression utility to create a compressed archive containing the bitmap files. Copy the compressed archive to the floppy disk.BCreate an empty compressed folder on the floppy disk， and copy the files to the new folder.CFormat the floppy disk as NTFS， and restart the copy operation.DConfirm that the cluster size on the NTFS volume is greater than 32k.
单选题A shoot-out has erupted between your MS development teams using .NET and your Linux development teams using Java. Knowing that your database is in danger，which command would you use to back up your NOARCHIVELOG mode database using RMAN with compression？（）A backup database allB backup compressed databaseC backup as compressed backupset databaseD backup as compressed backup database plus archivelog allE backup as compressed backupset database plus compress archivelog all
单选题You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a n On-Line Analytical Processing （OLAP） database named in the instance. The database contains a dimension table named Clients. Ever hour backup of data of the Clients table is performed. But the Clinets table contains redundant data. You must keep the disk space used to store the Clients table. In the options below， which compression technology should you use？（）AYou should use row compression BYou should use page compression CYou should use backup compression DYou should use windows NTFS file system compression
单选题You want to use RMAN to create compressed backups. Which statement is true about the compression algorithms that RMAN can use？（）A The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.B The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.C The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.D Only the BZIP2 compression algorithm can be used to make compressed backups to disk.