GPEN · Question #291
Which of the following are the two different file formats in which Microsoft Outlook saves e-mail messages based on system configuration? Each correct answer represents a complete solution. Choose two
The correct answer is B. .ost C. .pst. Microsoft Outlook stores email data in two proprietary binary formats - PST for local or personal mail storage and OST for offline cached access to Exchange mailboxes.
Question
Which of the following are the two different file formats in which Microsoft Outlook saves e-mail messages based on system configuration? Each correct answer represents a complete solution. Choose two.
Options
- A.xst
- B.ost
- C.pst
- D.txt
How the community answered
(32 responses)- A16% (5)
- B78% (25)
- D6% (2)
Why each option
Microsoft Outlook stores email data in two proprietary binary formats - PST for local or personal mail storage and OST for offline cached access to Exchange mailboxes.
.xst is not a valid Microsoft Outlook file extension and does not exist in Outlook's storage architecture.
.ost (Offline Storage Table) is created when Outlook is configured in Cached Exchange Mode, storing a locally synchronized copy of the Exchange server mailbox so users can work offline.
.pst (Personal Storage Table) is used for local mail storage in POP3 and IMAP configurations, as well as for archiving, and contains folders, messages, contacts, and calendar data in a single portable file.
.txt is a plain-text format and cannot store Outlook's structured email data including headers, attachments, folder hierarchy, and metadata.
Concept tested: Microsoft Outlook PST and OST email storage formats
Source: https://support.microsoft.com/en-us/office/introduction-to-outlook-data-files-pst-and-ost-222d99c3-2b6c-4627-a981-9f7f5e3f2fca
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