IT Help Desk - - Shall have detailed knowledge of Central Authentication, Authorization and Accounting via Terminal Access Controller Access Control System (TACACS). - Shall have detailed knowledge of layer 3 technologies, such as HSRP, EIGRP, and BGP. - Shall have detailed knowledge of layer 2 technologies, such as Rapid Spanning-Tree. - Shall have detailed knowledge of end-to-end Quality of Service (QoS) and multicast design and implementation. - Shall have detailed knowledge of Generic Routi…