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AZ-500 · Question #590

You have an Azure subscription that contains an Azure App Services web app named WebApp1 and an Azure key vault named Vault1. Vault1 has the certificates shown in the following table. You plan to…

The correct answer is A. Cert1 and Cert2 only. Azure App Service requires certificates to be in PFX format for TLS bindings. Only Cert1 and Cert2 are in the required PFX format, making them suitable for WebApp1.

Submitted by yuriko_h· Mar 6, 2026Secure compute, storage, and databases

Question

You have an Azure subscription that contains an Azure App Services web app named WebApp1 and an Azure key vault named Vault1. Vault1 has the certificates shown in the following table. You plan to implement TLS for WebApp1. You need to add a certificate to WebApp1. Which certificates from Vault1 can you add to WebApp1?

Exhibits

AZ-500 question #590 exhibit 1
AZ-500 question #590 exhibit 2

Options

  • ACert1 and Cert2 only
  • BCert1 and Cert3 only
  • CCert3 and Cert4 only
  • DCert1, Cert2, Cert3, and Cert4

How the community answered

(65 responses)
  • A
    72% (47)
  • B
    14% (9)
  • C
    5% (3)
  • D
    9% (6)

Why each option

Azure App Service requires certificates to be in PFX format for TLS bindings. Only Cert1 and Cert2 are in the required PFX format, making them suitable for WebApp1.

ACert1 and Cert2 onlyCorrect

Cert1 is in PFX format with a private key, which is the required format for Azure App Service SSL/TLS bindings. Cert2 is also in PFX format with a private key; the 'Exportable private key: No' setting in Azure Key Vault does not prevent App Service's managed identity from retrieving the PFX content from the Key Vault secret for SSL binding.

BCert1 and Cert3 only

Cert3 is in PEM format, which is not supported by Azure App Service for SSL/TLS bindings, making it unsuitable.

CCert3 and Cert4 only

Cert3 and Cert4 are both in PEM format, which Azure App Service does not support for SSL/TLS bindings.

DCert1, Cert2, Cert3, and Cert4

Cert3 and Cert4 are in PEM format, which Azure App Service does not support for SSL/TLS bindings, thus not all listed certificates can be added.

Concept tested: Azure App Service SSL certificate requirements and Key Vault integration

Source: https://learn.microsoft.com/en-us/azure/app-service/configure-ssl-certificate-key-vault?tabs=portal%2Cazurecli#requirements

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