Question and Answer: 60 

The 100-490 Exam is a certification exam designed to test the skills and knowledge required to support small to medium-sized networks. This exam is ideal for those who are looking to pursue a career in network engineering, as it covers a wide range of topics related to Cisco routing and switching technologies.
The 100-490 exam is divided into two parts: the first part covers network fundamentals, while the second part covers Cisco routing and switching technologies. In the first part, candidates will be tested on their knowledge of basic networking concepts such as OSI and TCP/IP models, network topologies, and network devices. In the second part, they will be tested on their ability to configure and troubleshoot Cisco routers and switches, including topics such as VLANs, STP, and OSPF.
Passing this exam demonstrates that they have a strong foundation in networking fundamentals and the ability to configure and troubleshoot Cisco routing and switching devices.
To prepare for the 100-490 exam, Cisco recommends taking the Supporting Cisco Routing and Switching Network Devices course, which covers all the topics included in the exam. With the 100-490 certification, they will be well-equipped to support and manage small to medium-sized networks using Cisco routing and switching technologies.