Question 101 · 339 in bank
SIMULATION -
Username and password - Use the following login credentials as needed: To enter your username, place your cursor in the Sign in box and click on the username below. To enter your password, place your cursor in the Enter password box and click on the password below. Azure Username: User-12345678@cloudslice.onmicrosoft.com Azure Password: xxxxxxxxxx - If the Azure portal does not load successfully in the browser, press CTRL-K to reload the portal in a new browser tab. The following information is for technical support purposes only: Lab Instance: 12345678 - You plan to deploy 100 virtual machines to subnet-1. The virtual machines will NOT be assigned a public IP address. The virtual machines will call the same API which is hosted by a third party. The virtual machines will make more than 10,000 calls per minute to the API. You need to minimize the risk of SNAT port exhaustion. The solution must minimize administrative effort. To complete this task, sign in to the Azure portal.
This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.
Show the answer figure
Answer: See figure below
Explanation
Key here as mentioned is the Public IP Prefix, since no mention of the Ports to be used I would go for Max i.e. /28 here is more from MS doco A single NAT gateway can scale up to 16 IP addresses. Each NAT gateway public IP address provides 64,512 SNAT ports to make outbound connections. NAT gateway can scale up to over 1 million SNAT ports. NAT gateway can use up to 16 public IP addresses. NAT gateway can use any combination of public IP addresses and public IP prefixes totaling to 16 addresses. NAT gateway can support the following prefix sizes: /28 (16 addresses), /29 (8 addresses), /30 (4 addresses), and /31 (2 addresses). More here https://learn.microsoft.com/en-us/azure/nat-gateway/nat-gateway-snat#nat-gateway-snat-port-selection-and-reuse https://learn.microsoft.com/en-us/azure/nat-gateway/faq
Source: Adapted from community discussion — Lazylinux
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