CCNA Intro 640-821 Practice Exam 1.0.0 Description:
SAEAUT SNMP OPC Server - Network management integration with SCADA and HMI using OPC and Web Services CCNA Intro 640-821 Practice Exam is the only exam necessary to obtain CCNA certification CCNA can be achieved by following any of the two available paths. One is to take 640-801 exam directly. The other is to take two smaller exams, viz CCNA INTRO 640-821 and ICND 640-811. The former is preferred if you have some networking experience earlier.