Câu 76: H19-301: Huawei Certified Pre-sales Associate-IP Network(Datacom)-ENU

Which of the following statements are TRUE about enterprise WAN interconnection? (Choose all that apply.)

1. A. Industries such as electric power and transportation have self-built leased line network connections. — đáp án hiện tại
2. B. Carriers' point-to-point leased lines are used for cross-city or cross-country connections. This mode is expensive and is mainly used to connect DCs, headquarters, or important outlets. — đáp án hiện tại
3. C. Regional networks are connected through carriers' leased lines. This mode is expensive and applies to enterprises that have high SLA requirements. — đáp án hiện tại
4. D. The carriers’ Internet+VPN technologies are used for connections. This mode applies to small- and medium-sized branches that do not have high SLA requirements. — đáp án hiện tại