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Updated: Jul 27, 2026
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Cisco 100-490 certification exam is a 90-minute test that consists of 60-70 questions. 100-490 exam is available in English and Japanese and can be taken at any Pearson VUE testing center worldwide. 100-490 exam is designed to test the candidate's knowledge and skills in the installation, configuration, and maintenance of Cisco routers and switches. 100-490 exam also covers topics such as network security, wireless technologies, and network troubleshooting.
Cisco 100-490 certification exam tests the candidates' proficiency in implementing, configuring, and verifying the basic routing and switching technologies in a Cisco network infrastructure. 100-490 exam covers a range of topics, such as network fundamentals, LAN switching technologies, IPv4 and IPv6 routing technologies, WAN technologies, infrastructure services, and infrastructure maintenance.
Cisco 100-490 Exam Overview:
| Certification Vendor: | Cisco |
| Exam Name: | Supporting Cisco Routing and Switching Network Devices (RSTECH) |
| Exam Number: | 100-490 |
| Exam Duration: | 50 minutes |
| Certificate Validity Period: | 3 years |
| Available Languages: | English |
| Related Certifications: | Cisco Certified Support Technician (Networking) Cisco Certified Support Technician (Cybersecurity) |
| Exam Format: | Multiple choice, Multiple response, Simulation-based questions |
| Recommended Training: | Cisco Networking Basics Learning Path |
| Exam Registration: | Cisco Certification Registration Pearson VUE Cisco Exams |
| Sample Questions: | Cisco 100-490 Sample Questions |
| Exam Way: | Online proctored or Pearson VUE test center |
| Pre Condition: | No formal prerequisites required, basic networking knowledge recommended |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/certifications/entry.html |
Cisco 100-490 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Switching Fundamentals | - VLAN concepts and configuration - Trunking and STP basics |
| Topic 2: Cisco IOS Operations | - Basic CLI navigation - Device configuration and verification |
| Topic 3: Network Troubleshooting | - Connectivity troubleshooting - Layer 1–3 diagnostics tools |
| Topic 4: Routing Fundamentals | - Basic routing concepts - Static routing |
| Topic 5: Network Fundamentals | - Common networking protocols - IP addressing and subnetting basics - OSI and TCP/IP models |
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