[AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 10 : Route 53)(7)

2024년 SAA-C03 자격증 준비하면서 필요한 노트 정리했습니다 

 

강의는 유데미 "Ultimate AWS Certified Solutions Architect Associate SAA-C03" 통해 공부했습니다 

https://www.udemy.com/course/aws-certified-solutions-architect-associate-saa-c03

 

같이 공부해서 합격해보자구요 !

 

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Section 10 : Route 53

101. What is a DNS ? 

• domain name system - translate hostnames -> machine ip address 
• DNS = backbone of the internet 
• domain registrar : amazon route 53, 가비아 
• dns records : cname, ns
• zone file : contains dns records 
• name servers : resolves dns queries 
• top level domain tld : .com, .in. co.kr
• second level domain sld : amazon.com 
• dns steps 
  • local dns server 
  • root dns server 
  • tld dns server 
  • sld dns server 
  • back to local pc
  • local pc then has the specific ip address on where to access the server 

 

102. Route 53 Overview 

• A highly available, scalable, fully managed dns 
• route 53 is also domain registrar 
• only aws service providing 100% availability sla 
• record types 
  • a - maps a hostname to ipv4
  • aaaa - maps to ipv6 
  • cname - maps hostname to another hostname 
  • ns - name servers for the hosted zone 
• hosted zones
  • public hosted zones - contains records that specify how to route traffic on the internet 
  • private hosted zones - route traffic within one or more vpcs (private domain names) 
• you pay 50 cent per month per hosted zone, 12 dollar per year, its not free for free-tier 

 

106. Route 53 - TTL 

• ttl - time to live, dns cache live period on client side 
• high ttl : less traffic to route 53 but may have outdated records 
• low ttl : more traffic to route 53, which means more costs will be charged, records are oudated for less period and easy to change dns records 

 

107. Route 53 CNAME VS ALIAS

• cname - only for non root domain 
• alias - works root domain & non root domain, free of charge and contains native health checks 

 

 

108. Routing Policy - simple 

• dns does not route any traffic, it only responds ot the dns queries, its not a load balancer 
• simple
  • can specify multiple values in the same record, if multiple values are returned, a random one is chosen by the client 

 

 

 

 

 

 

 

 

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같이 파이팅해서 합격해봅시당 ㅎㅎ 

저는 24년 10월 중순에 시험 볼 예정입니다 ! (후기 남기도록 하겠습니다 후후)

 

AWS Section	URL
Section 3 : Getting Started with AWS Section 4 : IAM & AWS CLI	2024.08.30 - [AWS/SAA] - [AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 3 : Getting Started with AWS & Section 4 : IAM & AWS CLI)(1)
Section 5 : EC2 Fundamentals	2024.09.01 - [AWS/SAA] - [AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 5 : EC2 Fundamentals)(2)
Section 6 : EC2 - Solutions Architect Associate level	2024.09.04 - [AWS/SAA] - [AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 6 : EC2 - Solutions Architect Associate level)(3)
Section 7 : EC2 Instance Storage	2024.09.04 - [AWS/SAA] - [AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 7 : EC2 Instance Storage)(4)
Section 8 : High Availability and Scalability : ELB & ASG	2024.09.09 - [AWS/SAA] - [AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 8 : High Availability and Scalability : ELB & ASG)(5)
Section 9 : RDS + Aurora + ElastiCache	2024.09.12 - [AWS/SAA] - [AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 9 : AWS Fundamentals : RDS + Aurora + ElastiCache)(6)
Section 10 : Route 53	2024.09.19 - [AWS/SAA] - [AWS/SAA] Solutions Architect Associate 자격증 준비 (SAA)(Section 10 : Route 53)(7)

 

 

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