Cisco Systems Engineer Mock Interview
Master 30 Cisco Systems Engineer interview questions covering routing protocols, network security, and troubleshooting.
Question 15 of 30
What does DNS stand for, and can you explain how it works?
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Cecilia joined MockQuestions in 2021 as an editor for interview questions and answers, as well as the aptitude tests.
As a systems engineer, you are expected to know a wide variety of different technology topics. Since networking and leveraging the power of the internet is critical to any business, you should be especially well versed in this area. Being able to describe how the internet works to the interviewer will demonstrate your qualifications for this role. Since DNS services are integral to the function of web browsers and resource lookups, you are expected to be able to discuss this topic in-depth. Additionally, many internet service interruptions are actually a loss of DNS service, so you should be able to explain how to diagnose and repair this issue.
Cecilia joined MockQuestions in 2021 as an editor for interview questions and answers, as well as the aptitude tests.
"DNS stands for Domain Name System or Domain Name Server. It is a network service that enables users to connect to the internet or local addresses using domain names instead of IP addresses. It also helps users find specific websites across the internet. The way it works is that the browser requests a specific IP address from a DNS server and then uses that address to connect. You can think of the DNS server as a phone book or directory."
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