Which of the following challenges drive WAN upgrade?
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.
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