Cisco 100-490 real exam prep : Supporting Cisco Routing and Switching Network Devices

  • Exam Code: 100-490
  • Exam Name: Supporting Cisco Routing and Switching Network Devices
  • Updated: Aug 23, 2026
  • Q&As: 74 Questions and Answers

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Exam Details

The Cisco 100-490 exam consists of 55-65 questions that are to be completed by the candidates within the allocated duration of 90 minutes. This is a closed book test, which means that no reference materials are allowed while sitting for it. To register for the exam, you need to create an account with Pearson VUE, the official Cisco testing partner. The exam is available for the applicants in the English and Japanese languages.

To build the knowledge base for the Cisco 100-490 exam, the candidates are recommended to undergo the training course available on the official website. The Supporting Cisco Routing and Switching Network Devices v3.0 course is delivered online and equivalent to 6-7 hours of classroom instruction.

After successful acing the Cisco 100-490 exam, you will be awarded your CCT Routing & Switching certification. The certificate is valid for three years and requires renewal after the expiration of this period. You can undergo recertification via attending Cisco authorized educational events, taking additional certification tests, or through a combination of both.

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100-490 exam dumps

Cisco 100-490 Exam Topics:

SectionWeightObjectives
Cisco IOS Software Operation29%- Describe the key role of Cisco IOS, IOS-XE, IOS-XR and NX-OS software
- Navigate between different operating modes
- Determine the current mode of a device
- Copy and paste a configuration file from/to a router or switch
- Use and interpret the basic Cisco IOS Software commands
- Describe the location and process to change the configuration register parameter
- Identify a configuration file from a Cisco device
- Describe the licensing process on different platforms
- Describe Bundle Mode/Install Mode IOS-XE
General Networking Knowledge25%- Use the OSI and TCP/IP models and their associated protocols to explain how data flows in a network
- Describe the basic functionality and key differences of this hardware: LAN switch, router, and wireless access points
- Differentiate between these Layer 2 technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, Serial, and Optical
- Describe LAN cabling
- Describe the function of CSU/DSU
- Describe Telco termination point
- Describe an IPv4 and IPv6 address and subnet
- Describe the function of FTP, TFTP and PING
- Describe the function of Telnet and SSH
Cisco Equipment and Related Hardware20%- Identify the Cisco equipment including the Cisco Nexus 9000 Series, Nexus 7000 Series, Nexus 3000 Series, MDS 9000 Series, Catalyst 9000 Series, Catalyst 6800 Series, Catalyst 6500 E-Series, Catalyst 3850, 3650, 2960, 1000 Series and Meraki switches and Cisco 8000 Series, Cisco ASR 9000 Series, Cisco ASR 1000 Series, NCS 5500 Series ,NCS 5000 Series routers and Cisco 4000, 1100, 900, 800 Series Integrated Service routers.
- Identify Cisco products by logo marking and model number (including, but not limited to, locations on chassis, line card, module, or adapter)
- Identify Cisco Transceiver Modules
- Identify and locate the serial number of Cisco products (including, but not limited to, locations on chassis, line card, module, or adapter)
- Identify and describe commonly used components
- Describe hardware memory common terms and their use in Cisco routers and switches
- Identify the cabling on Cisco equipment
- Identify tools for hardware installation and replacement
- Identify the different loop-back plugs (RJ45 Ethernet, T1, 56K)
Service-Related Knowledge26%- Locate and use a text editor such as, Notepad
- Locate and use the Windows command prompt
- Locate, configure, and use Terminal Emulation ( Tera Term, Putty)
- Configure networks settings for Ethernet port on laptop (IP address, subnet mask and default gateway) and establish a connection with Ethernet ports on Cisco equipment using correct cable
- Make a physical connection from laptop to Cisco console port
- Connect, configure, and verify operation status of a device interface
- Configure and use TFTP and FTP servers (TFTP d32/64, FIlezilla)
- Perform software upgrade or downgrade using TFTP, FTP, xmodem, tftpdnld, or USB Storage
- Manage configurations via the TCP/IP network
- Perform password recovery on a Cisco device
- Identify and correct common network problems at Layers 1 and 2
  • Serial or ether interface status
  • Ethernet layer 2 (full and half duplex, speed issues)
  • WAN serial loopback test (T1, 56K and Telco assisted loopback)

Reference: https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/100-490-rstech.html

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