Sicherungskopie
a copy of data stored separately in case the original is lost or damaged
noun
أمثلة:
• Always create a backup before upgrading your operating system.
• The server automatically creates a backup of all files every night.
Verstärkung
assistance or support provided to someone
noun
أمثلة:
• The police officer called for backup when the situation escalated.
• Have a backup plan in case the primary approach fails.