AWS Certified Advanced Networking – Specialty (ANS-C01)Network DesignEasy
A multinational corporation has hundreds of AWS accounts organized under AWS Organizations. Each account manages multiple VPCs across various regions. The networking team needs a centralized solution to allocate and manage IP addresses for all VPCs, ensuring non-overlapping CIDR blocks and simplifying IP space planning. What AWS service should they implement?
- AAWS Transit Gateway
- BAWS PrivateLink
- CAmazon Route 53 Resolver
- DAWS IP Address Manager (IPAM)
Show answer & explanationAnswer & explanation
Correct answer: D. AWS IP Address Manager (IPAM)
AWS IP Address Manager (IPAM) is specifically designed to centralize and simplify IP address management across AWS accounts and VPCs. It helps in planning, tracking, and allocating IP addresses, preventing overlaps, and automating IP address assignment.
Why the other options are wrong
- A. AWS Transit Gateway connects VPCs and on-premises networks, it does not manage IP address allocation.
- B. AWS PrivateLink provides private connectivity between VPCs and services, not IP address management.
- C. Amazon Route 53 Resolver is for DNS resolution, not IP address management.
AWS IP Address Manager (IPAM)
A feature of Amazon VPC that makes it easier to plan, track, and monitor IP addresses for your AWS workloads. It provides automated IP address management across accounts, VPCs, and regions.
- Centralizes IP address management across AWS accounts and VPCs.
- Prevents IP CIDR block overlaps.
- Automates IP address assignment and tracking.
- Integrates with AWS Organizations.
Memory trick: IPAM is like a smart 'IP Address Map' for your cloud.