In video conferences, in order to improve the voice quality, we can use Audio Enhancement Technologies such as( )- (Select 3 answers)
A. VAD
B. CNG
C. AAC-LD
D. EC
The quality of digital signals depends on the following factors. ( ) (Select 3 answers)
A. Bandwidth
B. Sampling rate
C. Bit depth
D. Number of audio channels
Basic functions of the firewall include: Content Filtering, User Authentication, VPN, Application Proxy, NAT, Packet Filtering and Status Detection, IDS and Alarming,Logs. ( )
A. TRUE
B. FALSE
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