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
正确答案:A,B,D
答案解析:有
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