Are you someone looking for a career in MPLS or BGP? Well, it is not an easy task. You have to prepare yourself for what you want to achieve.
To prepare yourself for this, you have to be familiar with the MPLS interview questions and answers. As well as the questions and answers for BGP. Once you know the questions you will be asked, you can prepare well enough to pass the interview.
You can also take help from various websites such as https://cciedump.spoto.net/ccnp-ccie-2020.php to get a better understanding of everything. For now, read this article and find out about the type of questions you should be prepared for.
What is MPLS, and what are its advantages?
This is one of the most common questions asked in the interview. It might seem simple, but you should be prepared to answer the question. You should tell that MPLS is a data forwarding service, etc.
You should talk about QoS integration, fast convergence, low network, and congestion for the benefits. You can also talk about its reliability and security. Moreover, you can mention its scalabilities to IP VPNs.
What are push, swap, and pop functions in MPLS and tell about Penultimate Hop Popping?
To answer this question, you need to tell how to label switching is different from IP forwarding. Then you need to tell that label functions such as push, swap, and pop are regulated by LSR. In the end, you will tell the purpose of these functions.
Push is used for adding a label, pop removes a label, and swap changes or replaces a label.
What are some of the BGP path attributes that control incoming and outgoing traffic?
For this question, you will explain how BGP has different path attributes to control the incoming and outgoing traffic. Then you will tell that BGP uses AS-Path prepending and MED to control the incoming traffic.
You will further add that outgoing traffic weight and local preferences are considered the best options available.
For what reason will a BGP show 0.0.0.0 as the Router ID?
You will explain that this happens when a router is not configured with an IP address. Due to this reason, BGP is unable to get a router ID, and 0.0.0.0 is considered.
To wrap it up!
Like every interview, you should be well prepared for MPLS and BP interviews. To qualify for it, you need to gain technical knowledge and be prepared for any question!