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ACP-120 system administration: what the exam tests

What ACP-120 asks about system administration: backup and CSV imports, default user preferences, attachments and time tracking settings.

By MockCert Editorial3 min readPublished Nov 9, 2026

Importing a cloud backup overwrites the site's database, and new users get no app access until you grant it. A CSV file must have a Summary column in its header row before Jira will import it.

01 What does ACP-120 test about system administration?

You reach a question about a site import the night before your mock exam and realize you have never run one. The exam still expects you to know what each import keeps, overwrites and needs.

You also need default user preferences, attachment limits and time tracking settings.

What the exam asks about in this domain

  1. Backup and importCloud backups, CSV files and third-party imports
  2. Global user settingsDefault user preferences and what users can change
  3. Attachments and time trackingPermissions, size limits and time tracking settings
Three areas of global settings covered in this post.

Know imports, default user settings, attachments and time tracking.

02 What does an import change?

Importing entities.xml and activeobjects.xml overwrites the cloud site's database. Imported users merge with existing cloud users and can gain app access or permissions, while new users get no app access until you grant it.

A CSV import needs a Summary column, lists parent work items before their children, and cannot create new status values.

A backup import overwrites the database, so check app access afterwards.

03 How do default user settings work?

Default user preferences apply when an account is created, and each user can then change them in their profile. An admin can force an email format with Apply, after which users cannot edit it.

Public and anonymous users inherit the site's defaults, since managing personal settings needs a login.

Defaults apply at account creation, and Apply locks the email format.

04 What limits apply to attachments and time tracking?

Attachments and time tracking side by side

Attachments

  • Enabled by default
  • Create Attachments to attach files
  • Delete Own Attachments to remove your own

Time tracking

  • Enabled by default
  • Work On Work Items to log time
  • Default unit for time logged without one
Both are on by default; each needs its own space permission.

The per-file attachment size defaults to 1 GB and can go up to 2 GB. Disabling and re-enabling time tracking loses no existing data.

Attaching needs Create Attachments; logging time needs Work On Work Items.

Summary

  1. A backup import overwrites the cloud site's database.
  2. A CSV header row must include a Summary column.
  3. Attachments default to 1 GB per file, up to 2 GB.

Sources

  1. Import work items | Atlassian Support
  2. Import data from a CSV file | Atlassian Support
  3. Configure the user default settings | Atlassian Support
  4. Configure file attachments | Atlassian Support
  5. Configure time tracking | Atlassian Support
  6. Manage your Jira personal settings | Jira Cloud | Atlassian Support