AD0-E603 Exam Questions and Answers

QUESTION: 6

A developer needs to create a Landing Page to send customers to register for a future Webinar. However, when creating the Landing Page in Adobe Journey Optimizer, the "Create Landing Page" button is grayed out.
What would be two reasons for this? (Choose two.)

The Landing Page subdomains have not been set up.
The Landing Page presets have not been set up.
The system admin has not added the PTR record for the Landing Page subdomain.
Under channel administration, the user should select their own domain first.

Answer(s): A,B

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QUESTION: 7

The marketing team of an online sports company wants to understand how soft bounces are impacting their email communications plan.
By default, how does Adobe Journey Optimizer suppress an address based on a single email delivery?

At the fifth encountered error within the retry time period, the address is suppressed.
At the third encountered error within the retry time period, the address is suppressed.
At the fourth encountered error within the retry time period, the address is suppressed.

Answer(s): A

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QUESTION: 8

Adobe Journey Optimizer is being set up at an organization. The business is very concerned about retaining the company's reputation on their websites. Some of the brands are responsible with their email programs, but others are not.
In order to diversify the risk, what would the developer do?

Create separate subdomains for each website in the organization. For each subdomain, make sure that all the DNS records have been generated into their company's domain hosting solution.
Create a new DNS record for each website that the company wants to utilize for sending emails. Once these are set up, check to make sure that the domain hosting solution has generated the correct validation records to ensure it is functioning correctly.
Create a DNS record to match each subdomain used by the company. Make sure that the corresponding domain hosting solution has matching API Keys for authentication purposes.

Answer(s): A

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QUESTION: 9

A developer needs to use a data source to retrieve data from a third-party system.
What is the maximum number of calls per second for external data sources?

10 calls per second
20 calls per second
15 calls per second

Answer(s): C

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QUESTION: 10

A developer wants to set up a journey to send API calls to a third-party system using a custom action.
What are two limitations the developer must be aware of? (Choose two.)

Only POST and PUT call methods are supported.
Only simple collections can be passed in custom action parameters.
Advanced expression editor does not support arrays in action parameters.
Only the default ports are allowed when defining a custom action.

Answer(s): A,B

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Adobe AD0-E603 Exam (page: 2) Adobe Journey Optimizer Developer Expert Updated on: 12-Feb-2026

QUESTION: 6

QUESTION: 7

QUESTION: 8

QUESTION: 9

QUESTION: 10

Adobe AD0-E603 Exam (page: 2)
Adobe Journey Optimizer Developer Expert
Updated on: 12-Feb-2026