多选题What can a network administrator utilize by using PPP Layer 2 encapsulation (Choose three.) （）。AVLAN supportBcompressionCauthenticationDsliding windowsEmultilink supportFquality of service
多选题
What can a network administrator utilize by using PPP Layer 2 encapsulation (Choose three.) （）。
A
VLAN support
B
compression
C
authentication
D
sliding windows
E
multilink support
F
quality of service
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