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Add DNS answers (#375)

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César Freire 2023-05-27 14:45:44 -03:00 committed by GitHub
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topics/dns/README.md
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@ -89,6 +89,7 @@ A mapping between domain name and an IP address.
<summary>What types of DNS records are there?</summary><br><b>
* A
* CNAME
* PTR
* MX
* AAAA
@ -161,8 +162,29 @@ True.
<details>
<summary>Which techniques a DNS can use for load balancing?</summary><br><b>
There are several techniques that a DNS can use for load balancing, including:
* Round-robin DNS
* Weighted round-robin DNS
* Least connections
* GeoDNS
</b></details>
<details>
<summary>What is a zone? What types of zones are there?</summary><br><b>
<summary>What is a DNS zone?</summary><br><b>
A DNS zone is a logical container that holds all the DNS resource records for a specific domain name.
</b></details>
<details>
<summary>What types of zones are there?</summary><br><b>
There are several types, including:
* Primary zone: A primary zone is a read/write zone that is stored in a master DNS server.
* Secondary zone: A secondary zone is a read-only copy of a primary zone that is stored in a slave DNS server.
* Stub zone: A stub zone is a type of zone that contains only the essential information about a domain name. It is used to reduce the amount of DNS traffic and improve the efficiency of the DNS resolution process.
</b></details>