Everything in this document will help you pass the CLF-02 AWS Cloud Practitioner Exam. There are modules and additionally, all the notes from the AWS course itself to help you prepare for the exam as well as bonus questions
DNS – Domain Name System (Port 53) , Application Layer
Protocol
- Maps FQDN to IP address
Low Latency = Fast
High Latency = Slow
Mobile speeds:
4G LTE – up to 100 Mbps
5G – up to 2Gbps
Category 6 cable capable of speeds up to 10Gbps (55m)
Category 6a/7 cable capable of speeds up to 40Gbps
Fiber Optic Cables for faster speeds (60Tbps, 80Tbps, 120Tbps,
150Tbps)
Private Cloud – owned by 1 organization
Hybrid Cloud – Combination of public and private
“Cloud” today really refers to “Public Cloud”
Cloud
- Data and apps stored/run on cloud
○ eg email, web server, youtube
○ Backups: Redundant sites
○ Reliable, Scalable
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,Infrastructure as service
- Provider: Manages storage, servers, virtualization, networking
- Customer: Apps, Data, OS, Middleware, Runtime
Platform as Service
- Customer: Data and apps
- Provider: all else
Software as Service:
- Provider: everything
Accessible anytime, subscription based
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, NAT/PAT & VLANS
Sunday, May 26, 2024 4:44 PM
ITEC 4000 – Cloud Computing Technologies
NAT/PAT and VLANs
NAT = Network Address Translation
PAT = Port Address Translation
NAT/PAT converts Private to Public addresses – This is what
allows for the US to still use IPv4 addresses since we conserve the
public addresses
IPv6 = All addresses are considered public
Private IP = 10.151.100.114
Public IP = 168.28.2.98 (GGC’s Public IP Address)
How does the system know which application/browser window to
return the information?
netstat = network statistics
NAT:
- Network Address Translation
- Preserves limited amt of IPv4 public addies
- Private IP addies and NAT was developed
○ Cannot directly access internet w private IP
○ Only used internally (home/biz)
○ NAT will translate pri to pub & reverse
AWS Page 4
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