多选题When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?（）Auplink speed less than 768kbpsBsupporting Voice-over-IPCusing PPPoE encapsulationDusing PPPoA encapsulationEuplink speed greater than 768kbps
多选题
When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?（）
A
uplink speed less than 768kbps
B
supporting Voice-over-IP
C
using PPPoE encapsulation
D
using PPPoA encapsulation
E
uplink speed greater than 768kbps
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