312-49 · Question #615
Which of the following registry hive gives the configuration information about which application was used to open various files on the system?
The correct answer is A. HKEY_CLASSES_ROOT. HKEY_CLASSES_ROOT (HKCR) stores file association and COM object registration data. It maps file extensions (e.g., .docx, .pdf) to the applications registered to open them, making it the primary hive for determining which application handles a given file type…
Question
Which of the following registry hive gives the configuration information about which application was used to open various files on the system?
Options
- AHKEY_CLASSES_ROOT
- BHKEY_CURRENT_CONFIG
- CHKEY_LOCAL_MACHINE
- DHKEY_USERS
How the community answered
(32 responses)- A88% (28)
- B3% (1)
- C6% (2)
- D3% (1)
Explanation
HKEY_CLASSES_ROOT (HKCR) stores file association and COM object registration data. It maps file extensions (e.g., .docx, .pdf) to the applications registered to open them, making it the primary hive for determining which application handles a given file type. HKEY_CURRENT_CONFIG holds hardware profile data, HKEY_LOCAL_MACHINE contains broad system configuration, and HKEY_USERS stores per-user settings - none of which directly govern file-to-application mappings.
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