300-820 · Question #182
What is the default file extension for saving Cisco Expressway-C backups when using the Google Chrome browser?
The correct answer is A. .tar.gz.enc. When downloading a Cisco Expressway-C backup using Google Chrome, the browser appends an extra extension to the encrypted archive, resulting in a .tar.gz.enc filename.
Question
What is the default file extension for saving Cisco Expressway-C backups when using the Google Chrome browser?
Options
- A.tar.gz.enc
- B.tar.tar.gz
- C.zip
- D.tar.gz.gz
How the community answered
(61 responses)- A92% (56)
- B2% (1)
- C5% (3)
- D2% (1)
Why each option
When downloading a Cisco Expressway-C backup using Google Chrome, the browser appends an extra extension to the encrypted archive, resulting in a .tar.gz.enc filename.
Cisco Expressway generates backup files as encrypted archives with the .tar.gz.enc extension. When downloaded through Google Chrome, the browser correctly preserves this extension. The .enc suffix indicates the file has been encrypted using the backup encryption key configured on the Expressway.
.tar.tar.gz is not a valid or used file extension for Expressway backups and does not reflect any known Chrome download behavior.
.zip is the format used by some other Cisco products for configuration export but is not the format used by Expressway backup encryption.
.tar.gz.gz would imply double compression without encryption, which does not match the Expressway backup format that uses encryption (.enc) rather than additional compression.
Concept tested: Cisco Expressway backup file format and encryption extension
Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/admin_guide/X14-3/exwy_b_cisco-expressway-administrator-guide/exwy_m_backup-and-restore.html
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