RSTECH Supporting Cisco Routing Switching Network Devices (100-490) Cisco’s 100-490 exam presumes you’ve already spent time with IOS fundamentals, VLAN configuration, and basic routing protocols like OSPF and BGP. Candidates without hands-on lab experience configuring Catalyst switches and understanding access control lists frequently find themselves unprepared for the operational troubleshooting scenarios. Strong prerequisites in network layering and device CLI navigation are essential foundation work.
| Exam Name | RSTECH Supporting Cisco Routing Switching Network Devices |
| Exam Code | 100-490 |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |


