试题详情
- 单项选择题How do Cisco Unified Communications IP phones receive firmware upgrades?（）
A、user request using the keypad of the phone and HTTP download
B、IT department scheduled upgrade using HTTP download
C、TFTP download based on version control through Cisco Unified Communications Manager
D、FTP download based on version control through Cisco Unified Communications Manager
E、HTTP download based on version control through Cisco Unified Communications Manager
- C
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