Senior Network Engineer Interview Questions

1,032 senior network engineer interview questions shared by candidates

- Troubleshoot optical connection from a router to an ISP, how to troubleshoot (light meter, ports turned up, swap TX/RX) - BGP peer doesn't come up, ping fails, what else to troubleshoot (ACL blocks ping, check ARP able) - Two routers in metro network, connected to private WAN. How to get local traffic to prefer one router for exit (LOCAL_PREF). - Differences between ISIS and OSPF (not ISIS layer-2; they run it over IP) - Top 3 advantages of MPLS (traffic engineering, scaling, cost reduction - not necessarily the top 3 others would cite)
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Senior Network Engineer, Cloud

Interviewed at Microsoft

4
Mar 22, 2022

- Troubleshoot optical connection from a router to an ISP, how to troubleshoot (light meter, ports turned up, swap TX/RX) - BGP peer doesn't come up, ping fails, what else to troubleshoot (ACL blocks ping, check ARP able) - Two routers in metro network, connected to private WAN. How to get local traffic to prefer one router for exit (LOCAL_PREF). - Differences between ISIS and OSPF (not ISIS layer-2; they run it over IP) - Top 3 advantages of MPLS (traffic engineering, scaling, cost reduction - not necessarily the top 3 others would cite)

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