What is Citrix ADC and how is it used?

Citrix ADC, formerly known as NetScaler, is a comprehensive application delivery and load-balancing solution designed to optimize the performance, security, and reliability of applications delivered over networks. It provides a range of features including load balancing, application acceleration, SSL offloading, and advanced application firewall protection. Citrix ADC ensures that applications are always available and perform optimally, even during high-traffic periods or in the face of network challenges.