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312-49 · Question #220

312-49 Question #220: Real Exam Question with Answer & Explanation

The correct answer is D: Outlook pst. A .pst file (Personal Storage Table) is Microsoft Outlook's primary data file format that stores all local email messages, calendar entries, contacts, tasks, and notes—including archived data. When a user archives emails in Outlook, the archived items are saved to a .pst file.

Submitted by mateo_ar· Apr 18, 2026Disk Forensics

Question

In the following directory listing, which file should be used to restore archived email messages for someone using Microsoft Outlook?

Options

  • AOutlook bak
  • BOutlook ost
  • COutlook NK2
  • DOutlook pst

Explanation

A .pst file (Personal Storage Table) is Microsoft Outlook's primary data file format that stores all local email messages, calendar entries, contacts, tasks, and notes—including archived data. When a user archives emails in Outlook, the archived items are saved to a .pst file. To restore archived emails, you open or import the .pst file into Outlook. By contrast: .ost (Offline Storage Table) is a cached copy of a mailbox synchronized from an Exchange or IMAP server and cannot be directly imported to restore archives; .NK2 stores the AutoComplete nickname cache for email addresses; and .bak is a generic backup file extension not specific to Outlook data restoration.

Topics

#Outlook file formats#Email data storage#Data restoration#PST files

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