Free 100-490: Cisco Certified Technician Routing & Switching (RSTECH) Exam Questions and Answers
Cisco Certified Technician Routing & Switching (RSTECH) is exam 100-490, part of Cisco certifications. In Cisco's current scheme the first digit gives the level: 100 is entry, 200 associate, 300 the CCNP concentration exams, 350 the CCNP core exams that also qualify you for CCIE, 500 specialist and 700 the unproctored sales exams. Older codes such as 400-, 640- and 642- predate the February 2020 restructure, when every CCNA track was collapsed into one exam and CCNP moved to a core-plus-concentration model.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 7, 2026
- Exam code
- 100-490
- Provider
- Cisco
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
A network technician is troubleshooting a network issue where a user cannot access the internet. Which command should they use to check the IP configuration?
Please select an optionIncorrectCorrect answer: C
The ipconfig command displays the current IP configuration of a device, helping to identify misconfigurations.
Was this answer correct?Question #2
During a switch configuration, the interface enters an error-disabled state due to a port security violation. What should the technician do to restore the interface?
Please select an optionIncorrectCorrect answer: B
Manually enabling the interface is the immediate step to restore functionality after the error-disabled state.
Was this answer correct?Question #3
A customer reports slow network performance during peak hours. What could a technician check first?
Please select an optionIncorrectCorrect answer: A
Checking bandwidth usage will help determine if the network is congested, which is likely causing slow performance.
Was this answer correct?Question #4
When connecting a terminal to a Cisco router's console port, what cable should the technician use?
Please select an optionIncorrectCorrect answer: D
A rollover cable is specifically designed for connecting a terminal to a Cisco router's console port.
Was this answer correct?Question #5
A technician is implementing VLANs to segment traffic on a network. Which command will allow them to verify the VLAN configuration on a Cisco switch?
Please select an optionIncorrectCorrect answer: C
The command show vlan brief provides a summary of VLANs configured on the switch.
Was this answer correct?Question #6
A router's static route is not functioning as expected. What should the technician verify first?
Please select an optionIncorrectCorrect answer: A
The next-hop address must be reachable for the static route to function properly.
Was this answer correct?Question #7
When performing routine maintenance, a technician notices a sudden increase in collision errors on a switch port. Which of the following should the technician investigate?
Please select an optionIncorrectCorrect answer: C
Increased broadcast traffic can lead to collisions, so it's important to investigate high broadcast levels on the network.
Was this answer correct?Question #8
A user is unable to access a shared folder on a file server within a VLAN. What device in the network could prevent this access?
Please select an optionIncorrectCorrect answer: B
A firewall could be configured to restrict access to shared resources, affecting user connectivity.
Was this answer correct?Question #9
In a scenario where a technician must configure an IP address on a router, which command will assign a static IP address?
Please select an optionIncorrectCorrect answer: A
The command ip address followed by the address and subnet mask sets a static IP on the router interface.
Was this answer correct?Question #10
After implementing an access control list (ACL) on a router, the technician notices that users are unable to access the Internet. What could be the likely cause?
Please select an optionIncorrectCorrect answer: C
If the ACL is too restrictive, it may block essential traffic resulting in loss of Internet access.
Was this answer correct?
Continue with 100-490: Cisco Certified Technician Routing & Switching (RSTECH)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in 100-490: Cisco Certified Technician Routing & Switching (RSTECH), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
ChooseSingle exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
ChooseFull access
$39.99/mo
Every exam in the catalogue, month to month.
ChooseFull access
$199.99/yr
Every exam in the catalogue for a year.
Choose
Already subscribed? Sign in to pick up where you left off.
Other Cisco certifications
- 500-450: Implementing and Supporting Cisco Unified Contact Center Enterprise (UCCEIS) (opens in a new tab)
- 200-901: DevNet Associate (DEVASC) (opens in a new tab)
- 350-801: Implementing Cisco Collaboration Core Technologies (CLCOR) (opens in a new tab)
- 500-901: Cisco Data Center Unified Computing Infrastructure Design(DCICUC) (opens in a new tab)
- 300-215: Conducting Forensic Analysis and Incident Response Using Cisco CyberOps Technologies (CBRFIR) (opens in a new tab)
- 700-070: Cisco TelePresence IX5000 Series Immersive Solutions (opens in a new tab)
Reviews
★★★★★
This platform is a lifesaver. The practice questions and explanations are so detailed. It’s the best study tool I’ve ever used.
Hannah Smith
USA
★★★★★
I highly recommend Exam Practice. The feedback after each test helped me improve significantly, and I passed my exams easily.
Oscar Nyström
Sweden
★★★★★
Exam Practice is worth every penny. The mock exams are realistic, and the feedback helped me focus on key areas.
Amit Sharma
India
FAQ
Learn More: https://www.cisco.com/site/us/en/learn/training-certifications/certifications/index.html
- Q1: What is the 100-490: Cisco Certified Technician Routing & Switching (RSTECH) exam?
- A: 100-490: Cisco Certified Technician Routing & Switching (RSTECH) is a Cisco certification exam. Judging by the questions in our bank, it concentrates on technician, switch, router, port and unable.
- Q2: What topics does the 100-490: Cisco Certified Technician Routing & Switching (RSTECH) exam cover?
- A: Questions in our 100-490: Cisco Certified Technician Routing & Switching (RSTECH) bank cluster around technician, switch, router, port, unable, vlan, vlans and diagnose. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for 100-490: Cisco Certified Technician Routing & Switching (RSTECH)?
- A: Work through the 100-490: Cisco Certified Technician Routing & Switching (RSTECH) practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real 100-490: Cisco Certified Technician Routing & Switching (RSTECH) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat 100-490: Cisco Certified Technician Routing & Switching (RSTECH). Answers are verified and updated weekly.
- Q5: Where do I register for the 100-490: Cisco Certified Technician Routing & Switching (RSTECH) exam?
- A: Register through Cisco directly at https://www.cisco.com/site/us/en/learn/training-certifications/certifications/index.html. Exampractice is not affiliated with Cisco and does not administer the exam.
- Q6: Is there a free 100-490: Cisco Certified Technician Routing & Switching (RSTECH) sample?
- A: Yes. Every 100-490: Cisco Certified Technician Routing & Switching (RSTECH) page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are Cisco Certification Exams?
- A: Cisco Certification Exams validate your expertise in using and managing Cisco networking and IT solutions. These certifications demonstrate your proficiency in designing, implementing, and troubleshooting Cisco-based networks and systems, covering areas such as routing and switching, security, wireless, data center, and collaboration.
- Q8: Why should I pursue Cisco Certification?
- A: Cisco Certification enhances your professional credibility, showcasing your skills and knowledge in Cisco technologies. This can lead to better job opportunities, higher salaries, and career advancement in networking and IT industries.
- Q9: What are the benefits of Cisco Certification?
- A: Benefits include recognition as a certified networking professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest Cisco technologies and best practices.
- Q10: Who should take Cisco Certification Exams?
- A: Network engineers, system administrators, IT professionals, and anyone involved in designing, implementing, and managing network solutions using Cisco products should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of Cisco Certification Exams are available?
- A: Cisco offers various certification paths, including:
- Q12: How do I prepare for Cisco Certification Exams?
- A: Preparation can include official Cisco training courses, study guides, practice exams, online tutorials, and hands-on experience with Cisco networking equipment and solutions.
- Q13: Where can I take Cisco Certification Exams?
- A: Cisco Certification Exams can be taken at authorized Pearson VUE testing centers worldwide or online, providing flexibility to fit your schedule and location.
- Q14: How do Cisco Certifications impact my career?
- A: Cisco Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in networking and IT.
- Q15: Are there any prerequisites for Cisco Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior certifications. Check the specific requirements for each certification path on the Cisco website.
- Q16: How often do I need to recertify for Cisco Certifications?
- A: Cisco Certifications typically require recertification every three years to ensure that certified professionals stay updated with the latest networking technologies and industry practices.