Network Engineer Mock Interview
Practice 30 Network Engineer interview questions covering routing protocols, network security, and troubleshooting scenarios.
Question 13 of 30
Can you describe what a DNS is and the services it provides?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
Interviewers do to just ask technical questions to test your expertise and qualifications, they also want to see your communication skills. Defining these terms and discussing their use in plain language will demonstrate your ability to work with individuals from other parts of the organization who may not have a technical background.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"A Domain Name Server, or DNS, acts as a network's phone book. Organization-specific and public IP addresses and their hostnames are stored in the DNS. When a user enters a web address or URL, the DNS translates it into a corresponding machine language IP address. The user is then routed to the appropriate IP address, and the information or website is presented to them. There is a Central Registry where all the domain names are stored and updated periodically. All Internet service providers and host companies usually interact with the central registry to get the updated DNS details. In addition, private IP addresses for internal use by an organization are stored in a registry on the organization's DNS server."
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Anonymous Answer
DNS stands for domain name system, and it is a way for IP addresses to be represented in human-readable text. This is predominately so humans don't have to remember an IP address to visit a webpage on the world wide web; instead, they can type in a name instead of an IP address.
Stephanie's Feedback
This is a great start, but I suggest adding a sentence or two about the services provided by a DNS.
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