Free 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) Exam Questions and Answers
Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) is exam 640-875, 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 17, 2026
- Exam code
- 640-875
- 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 service provider is implementing MPLS in their core network. What is a primary benefit?
Please select an optionIncorrectCorrect answer: B
MPLS reduces latency due to its ability to handle packets more efficiently in the core network.
Was this answer correct?Question #2
During a traffic surge, a network administrator notices packet loss. What could be a critical step to take?
Please select an optionIncorrectCorrect answer: B
Implementing Quality of Service (QoS) helps prioritize critical traffic during congested times.
Was this answer correct?Question #3
A customer is experiencing issues with video streaming during peak hours. What should be investigated?
Please select an optionIncorrectCorrect answer: B
Bandwidth allocation should be investigated first as peak hours can cause congestion affecting streaming.
Was this answer correct?Question #4
An ISP is considering a migration to IPv6. Which advantage should they expect?
Please select an optionIncorrectCorrect answer: B
IPv6 provides a significantly larger address space, facilitating connections among more devices.
Was this answer correct?Question #5
What is the primary purpose of implementing BGP in a service provider's network?
Please select an optionIncorrectCorrect answer: D
BGP is used to manage the paths data packets take across different networks, making it crucial for internet routing.
Was this answer correct?Question #6
What can be a consequence of misconfigured BGP settings in a service provider's network?
Please select an optionIncorrectCorrect answer: D
Misconfigured BGP settings can create routing loops, which lead to packet loss and increased latency.
Was this answer correct?Question #7
A company reported slow data transfer rates during peak times. What should be your first step?
Please select an optionIncorrectCorrect answer: D
Measuring traffic helps to identify if congestion or bandwidth limitations are causing the slow speeds.
Was this answer correct?Question #8
When designing a multi-service network, which technology provides excellent traffic isolation?
Please select an optionIncorrectCorrect answer: D
VLANs provide effective traffic isolation within a multi-service network by segmenting the traffic.
Was this answer correct?Question #9
A customer site reports intermittent connectivity issues. What could be the primary cause?
Please select an optionIncorrectCorrect answer: A
Configuration errors are a common cause of intermittent connectivity issues and can be fixed through troubleshooting.
Was this answer correct?Question #10
In a high-traffic area, what is the best way to ensure redundancy?
Please select an optionIncorrectCorrect answer: C
Deploying load balancers helps ensure redundancy by distributing traffic efficiently across multiple servers.
Was this answer correct?
Continue with 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1), 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.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
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 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) exam?
- A: 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) is a Cisco certification exam. Judging by the questions in our bank, it concentrates on provider, peak, router, engineer and redundancy.
- Q2: What topics does the 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) exam cover?
- A: Questions in our 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) bank cluster around provider, peak, router, engineer and redundancy. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1)?
- A: Work through the 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) 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 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1). Answers are verified and updated weekly.
- Q5: Where do I register for the 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) 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 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) sample?
- A: Yes. Every 640-875: Building Cisco Service Provider Next-Generation Networks Part 1 (SPNGN1) 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.