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单选题Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）A user-managed backups.B partial database backups.C consistent database backups.D inconsistent database

题目
单选题
Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）
A

user-managed backups.

B

partial database backups.

C

consistent database backups.

D

inconsistent database backups.

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相似问题和答案

第1题：

Management has decided that the database must be available 24 hours a day， 7 days a week. Given this requirement， which type of backup is required？（）

  • A、user-managed backups.
  • B、partial database backups.
  • C、consistent database backups.
  • D、inconsistent database backups.

正确答案:C

第2题：

You are managing a 24*7 database. The backup strategy for the database is to perform user-managedbackups.Identify two prerequisites to perform the backups. (Choose two.)（）

  • A、The database must be opened in restricted mode.
  • B、The database must be configured to run in ARCHIVELOG mode.
  • C、The tablespaces are required to be in backup mode before taking the backup.
  • D、The tablespaces are required to be in read-only mode before taking the backup

正确答案:B,C

第3题：

You are managing a 24*7 database. The backup strategy for the database is to perform user－managedbackups.Identify two prerequisites to perform the backups. (Choose two.)()

A. The database must be opened in restricted mode.

B. The database must be configured to run in ARCHIVELOG mode.

C. The tablespaces are required to be in backup mode before taking the backup.

D. The tablespaces are required to be in read-only mode before taking the backup


参考答案：B, C

第4题：

Which statement is true about a whole consistent database backup on a database running in ARCHIVELOG mode（）

  • A、The backup will consist of used data blocks only.
  • B、The database must be shut down to accomplish the backup.
  • C、The backup can be accomplished without shutting down the database.
  • D、The backup will contain all database files that have never been backed up.

正确答案:B

第5题：

You are working on a 24x7 （available 24 hours per day， 7 days per week） production database. An operating system （OS） user deletes the alert log file accidentally. Which statement in this scenario is true？（）

  • A、The database crashes.
  • B、The DBA needs to re-create the file.
  • C、The file gets re-created automatically.
  • D、The file gets restored automatically from the last backup.
  • E、The DBA needs to perform a complete database recovery.
  • F、The DBA needs to perform an incomplete database recovery.

正确答案:C

第6题：

You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode and you want to perform a backup. Which type of backup would be appropriate in this case？ （）

  • A、Hot backup
  • B、Online backup
  • C、consistent backup
  • D、incremental backup
  • E、inconsistent backup

正确答案:C

第7题：

Your test database is running in NOARCHIVELOG mode. Which statement is true regarding the type ofbackups that can be performed on the database（）

  • A、You can perform online whole database backups.
  • B、You can performofflinewhole database backups.
  • C、You cannot perform schema-level export/import operations.
  • D、You can perform the backup of only the SYSTEM tablespace when the database is open.

正确答案:B

第8题：

You are working on a 24X7 database. You want to design a backup strategy for your database that uses user managed backups. You want to be able to perform all backups while the database remains online. Which statement about performing user-managed backups in a 24x7 environment is true?（）

  • A、You must have change tracking enabled in your database
  • B、Your database must be running in NOARCHIVELOG mode
  • C、To back up a tablespace, it must be in backup mode
  • D、To back up a tablespace, it must first be taken offline

正确答案:C

第9题：

You are working on a database that must be functioning 24 hours a day， 7 days a week. The databaseis configured in ARCHIVELOG mode.  Which two options do you have for performing user-managed backups（）

  • A、You can perform consistent backups only.
  • B、You can perform a complete database backup without shutting down the database instance.
  • C、You can back up data files only when all data files have the same SCN recorded in the control file.
  • D、You can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands.

正确答案:B,D

第10题：

You are managing a 24*7 database. The backup strategy for the database is to perform user-managed backups. Identify two prerequisites to perform the backups.（）

  • A、The database must be opened in restricted mode.
  • B、The database must be configured to run in ARCHIVELOG mode.
  • C、The tablespaces are required to be in backup mode before taking the backup.
  • D、The tablespaces are required to be in read-only mode before taking the backup

正确答案:B,C

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