Can you describe what a DNS is and the services it provides?

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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.

"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."

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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How to Answer: Can you describe what a DNS is and the services it provides?

Advice and answer examples written specifically for a Network Engineer job interview.

16. Can you describe what a DNS is and the services it provides?

How to Answer

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.

Answer Example

"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."

Anonymous Interview Answers with Professional Feedback

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.

Next Question