Huawei H19-101_V6.0 Exam - Topic 1 Question 20 Discussion

Comprehensive and Detailed in Depth Explanation:

WAN upgrades are driven by evolving enterprise needs, as outlined in the HCSA-Sales-IP Network V6.0:

Deteriorated connection performance (A): Aging WAN infrastructure struggles with latency and packet loss, necessitating upgrades.

Complex O&M (B): Traditional WANs require manual management, driving the shift to SD-WAN for simplification.

Insufficient bandwidth (C): Cloud and application growth demand higher capacity.

Difficult experience assurance (D): Ensuring consistent user and application performance across distributed sites is a key challenge.

All four are well-documented drivers for WAN modernization.