MPLS
MPLS (Multi-Protocol Label Switching) is a way to direct traffic through computer networks, similar to how a sophisticated postal system works. Instead of reading the full address (like traditional networks do), it uses simple labels to quickly forward data, making networks faster and more reliable. It's widely used by telecom companies and large businesses to deliver services like business internet, voice calls, and private networks. Think of it like an express lane on a highway - it's faster because it uses simplified directions rather than checking the full map at every turn.
Examples in Resumes
Designed and implemented MPLS networks across 5 major business locations
Managed troubleshooting for MPLS and MPLS-VPN connections for enterprise clients
Led migration from legacy network infrastructure to MPLS-based solution
Typical job title: "Network Engineers"
Also try searching for:
Where to Find Network Engineers
Professional Organizations
Online Communities
Job Resources
Example Interview Questions
Senior Level Questions
Q: How would you design an MPLS network for a company with multiple locations?
Expected Answer: A senior engineer should explain how they would consider factors like redundancy, bandwidth needs, cost-effectiveness, and security when designing the network. They should mention backup plans and how to handle different types of network traffic.
Q: How do you handle MPLS network troubleshooting in a large enterprise?
Expected Answer: Should demonstrate knowledge of systematic problem-solving approaches, monitoring tools, and how to minimize network downtime while resolving issues. Should mention communication with service providers and documentation processes.
Mid Level Questions
Q: What are the benefits of MPLS over traditional networking?
Expected Answer: Should be able to explain practical benefits like improved network performance, better reliability, and ability to prioritize different types of traffic in simple terms.
Q: How do you ensure quality of service in an MPLS network?
Expected Answer: Should explain how different types of network traffic (voice, video, data) can be prioritized and managed to ensure good performance for all users.
Junior Level Questions
Q: What is MPLS and what is it used for?
Expected Answer: Should be able to explain MPLS in simple terms as a way to move data through networks efficiently, and describe basic use cases like connecting office locations.
Q: What basic monitoring would you do on an MPLS network?
Expected Answer: Should describe basic network monitoring concepts, checking for connectivity issues, and when to escalate problems to senior team members.
Experience Level Indicators
Junior (0-2 years)
- Basic network monitoring
- Understanding of MPLS concepts
- Basic troubleshooting
- Documentation and ticket handling
Mid (2-5 years)
- MPLS configuration and maintenance
- Network performance optimization
- Vendor management
- Implementation of network changes
Senior (5+ years)
- Network architecture design
- Complex problem resolution
- Project management
- Team leadership and mentoring
Red Flags to Watch For
- No understanding of basic networking concepts
- Lack of troubleshooting experience
- No knowledge of network security principles
- Poor communication skills with non-technical stakeholders
- No experience with major networking vendors
Related Terms
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