Search the practice set
126 questions, 454 terms and 400 topics in 20 areas.
5 results for “DNS”
Terminology · 2
term
Networking
term
Multi-Region Architecture
DNS
The distributed directory that resolves names to addresses, and a surprisingly load-bearing part of most architectures.
Global Traffic Management
The layer that decides which region a given user reaches, using DNS, anycast or an edge network, and that performs regional failover.
Questions · 2
quiz
Networking
quiz
Networking
A user in Mumbai types your URL and presses enter. Walk me through every hop until the HTML reaches their browser. Where would you look first if the page were slow?
What the interviewer is testing This is the classic architecture screening question, and it is asked because the answer's depth correlates strongly with real ex
In the October 2021 Meta outage, engineers reportedly struggled to physically access equipment because the access-control systems were also down. What class of dependency is that, and how do you find yours?
The case, as publicly reported On 4 October 2021, a command issued during routine backbone capacity assessment took down all connections between Meta's data cen