You are a network administrator for your company. The corporate network consists of a single Active Directory domain. All servers run Windows Server 2003. On a server named ServerB, you configure several backup jobs to back up business data on file servers. The backup jobs are configured to run under the security context of a user account named BackupUser. The backup jobs run properly for several weeks, but then you notice that none of the jobs run anymore. What is the most likely reason that the backup jobs no longer run?
A. The password for the BackupUser account does not meet the password complexity requirements. B. The BackupUser account has been disabled as a result of an attempted password-guessing attack. C. The password for the BackupUser account has expired. D. The BackupUser account is not a member of the Backup Operators group on ServerB.
The password for the backupuser account has expired. -explanation: backup jobs are run under the security context of a specified user account. each user account in a domain is subject to password policies. the most likely reason that the backup jobs no longer run in this scenario is that the password for the backupuser account has expired. by default, passwords are set to expire in 42 days, but an administrator can set a different expiration period. to enable the backup jobs to continue running on their schedules, you should reset the password for the backupuser account. additionally, you should specify the new password in the properties of one of the backup jobs. in the remaining jobs that use the backupuser account, the password will then be changed automatically. it is not likely that the password for the backupuser account does not meet the password complexity requirements. all backup jobs have been functioning properly for several weeks. the scenario does not indicate that any changes to password policies or access permissions have been implemented. hence, the password for the backupuser account meets the length, complexity and all other password requirements, and the backupuser account is assigned the necessary level of authority and permissions to perform the backups. it is also not likely that the backupuser account was disabled as a result of an attempted password-guessing attack. if a malicious individual tried to guess the password for the backupuser account, then the account would be locked out after several unsuccessful attempts; the account would not be disabled. it would not affect the scenario if the backupuser account was not a member of the backup operators group on serverb. membership in the local backup operators group on serverb is not required to back up data on other computers.