Cisco Certified DevNet Professional 300-635

Walking into the 300-635 exam unprepared for its pace is a risk you do not need to take. The Getcertkey test engines recreate the pressure of the Cisco Automating Cisco Data Center Solutions (DCAUTO) testing environment, so when exam day arrives in 2026, it feels like just another practice session.

Cisco 300-635 Exam Overview:

Certification Vendor:	Cisco
Exam Name:	Automating Cisco Data Center Solutions
Exam Number:	300-635 DCAUTO
Available Languages:	Japanese, English
Passing Score:	Pass/Fail
Related Certifications:	Cisco Certified DevNet Professional Cisco Certified Automation Specialist - Data Center Automation and Programmability CCNP Data Center
Exam Format:	Multiple Choice, Multiple Response, Computer-Based Testing, Scenario Based
Exam Duration:	90 minutes
Exam Price:	$300 USD
Sample Questions:
Exam Way:	Delivered via Pearson VUE testing centers and online proctored exam.
Pre Condition:	Recommended experience with Cisco data center technologies (CCNP Data Center level) and basic programming/automation knowledge.
Official Syllabus URL:	https://www.cisco.com/site/us/en/learn/training-certifications/exams/dcauto.html

Cisco 300-635 Exam Syllabus Topics:

300-635 Exam FAQs for 2026 Candidates

Which certification does the 300-635 exam lead to?

The 300-635 exam is the official Cisco exam behind the Cisco Certified DevNet Professional certification, validating the skills measured by the Cisco Automating Cisco Data Center Solutions (DCAUTO) credential. It sits at the Professional / Specialist level of the Cisco certification program. It also connects to CCNP Data Center, Cisco Certified DevNet Professional, Cisco Certified Automation Specialist - Data Center Automation and Programmability, so the knowledge you build here carries over to those tracks as well.

What score do I need to pass the 300-635 exam, and what does it cost?

The passing score for the 300-635 exam is Pass/Fail, and the official registration fee is $300 USD. Retakes are not discounted — every new attempt means paying the full fee again — so it pays to measure yourself before you book. Work through the 136 practice questions on Getcertkey, sit a timed practice test, and schedule your exam only when your scores are consistently comfortable. That simple habit is the cheapest exam strategy there is.

Are there any prerequisites for the 300-635 exam?

Recommended experience with Cisco data center technologies (CCNP Data Center level) and basic programming/automation knowledge. Requirements can change when Cisco revises its certification program, so confirm the current eligibility rules on the official exam page before you register.

Can I try the 300-635 practice questions before I buy?

Yes. Getcertkey provides a free 300-635 PDF demo so you can review the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates — if Cisco revises the exam during that period, the updated material reaches you at no cost. Once the free-update year ends, you can extend your update service at a 50% discount.

What if I fail the 300-635 exam, and how is my order delivered?

Every Cisco Automating Cisco Data Center Solutions (DCAUTO) purchase on Getcertkey is covered by a 100% money-back guarantee with clear conditions: if you take the corresponding exam within 60 days of your purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip and your official score report as a PDF within two days of the exam date; claims are processed within seven days of submission. The guarantee does not apply to exams taken within three days of purchase, to material that was downloaded but never used in an exam attempt, or to free products and expired orders, and the candidate name must match the payer name. If you would rather not take a refund, you can instead exchange your purchase for two free exam preparation products of equal value and keep the update service on your original product.

Delivery is instant: your download is sent to your email within one minute of payment, with no limit on how many computers you may install the material on. If nothing arrives within two hours, check your spam folder and contact customer service for help.

What topics are covered in the 300-635 exam?

The Cisco Automating Cisco Data Center Solutions (DCAUTO) exam blueprint is organized into 5 domains. The first three are:

• Network Element Programmability — 25% of the exam
• Operations and AI in Automation — 15% of the exam
• Infrastructure as Code (IaC) — 25% of the exam

For the complete domain-by-domain breakdown, scroll up to the full exam topics outline above and use it to plan how you distribute your study time.

Cisco Automating Cisco Data Center Solutions (DCAUTO) Sample Questions:

Question 1

Drag and Drop Question
After a Cisco Nexus switch interface is enabled and in the up state, an engineer must automate the configuration of the interface descriptions using the EEM Python Module.
Drag and drop the steps the engineer must take from the left into the correct order on the right.

Question 2

Refer to the exhibit. Which Ansible module is needed in line 8 to create a new VLAN 10 on the hosts defined in the "ucs" group?

A. ucs_vlans
B. vlan
C. vlans
D. nxos_vlans

Question 3

When using NX-API REST on Cisco NX-OS, the client specifies a `"method"` field in the JSON- RPC request body to select the execution mode. Which method value is used to **execute only show commands and return structured (JSON/XML) data**, rather than plain text?

A. cli_show
B. cli_show_ascii
C. cli_conf
D. cli_ascii

Question 4

An engineer building automated tests wants to validate that a Python script correctly handles an APIC session timeout mid-script (e.g., token expired after 600 seconds of inactivity) by automatically re-authenticating and retrying the failed request, rather than crashing. Which design pattern best implements this robustly?

A. Disabling session timeout entirely on the APIC controller for all users
B. Increasing the script's `timeout` parameter to an arbitrarily large value so the session never expires
C. Avoiding the issue by never making more than one API call per script execution
D. Wrapping API calls in a try/except block that catches authentication-related error responses (e.g.,
403 with a token-expired indication), triggers a re-login, and retries the original request (ideally with a bounded retry count to avoid infinite loops)

Question 5

Refer to the exhibit. The exhibit shows a Cisco NX-OS switch configuration, an Ansible playbook, and the output of running this playbook. The playbook failed due to error "msg' 'Request failed
<urlopen error [Errno 61] Connection refused>', 'status' -1, "url" "http://192.168.251.129:80/ins".

Which Cisco NX-OS configuration command resolves this failure?

A. feature nxapi
B. feature http
C. http-server enabled
D. interface mgmt0; ip access-group allow_http_traffic in

Solutions: