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IT Certifications · 300-435 ENAUTO

Cisco Automating and Programming Cisco Enterprise Solutions Exam Practice Test

The 300-435 ENAUTO practice page centers on Python-based automation for Cisco enterprise environments. Its question bank uses programming and network-management scenarios involving data validation, asynchronous I/O, API requests, NETCONF operations, JSON parsing, and event handling. These subjects connect everyday Python decisions with the reliable collection of network state and execution of automated tasks.

Exam overview

Exam providerCisco
Exam code300-435 ENAUTO
CategoryIT Certifications

About the Cisco Automating and Programming Cisco Enterprise Solutions Exam

Enterprise automation work often requires choosing how scripts accept input, transform device data, communicate with services, and handle repeated events. Practice scenarios address Python type checks, list processing, safe collection updates, and command-line argument parsing. Other questions focus on concurrency for I/O-bound requests, UTC-aware timestamp comparisons, and HTTPS transport for protecting API tokens in transit. Network-management concepts include selecting a NETCONF operation to retrieve operational state and parsing JSON into Python data while handling malformed input. Together, these skills support automation tools that gather accurate device information, process API responses, and make network workflows more consistent. When reviewing an answer, identify the requirement in the scenario—such as state versus configuration, secure transport, or duplicate-event handling—and connect it to the relevant programming or protocol behavior.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

A Python application needs to ensure that a value from an API is an integer but should not accept a Boolean value, which is a subclass of `int` in Python. Which check expresses this requirement?

  1. A`type(value) is int`
  2. B`isinstance(value, int)`
  3. C`value == int(value)`
  4. D`str(value).isdigit()`
Show answerCorrect answer: A

In Python, `bool` is a subclass of `int`, so `isinstance(True, int)` is true. Checking `type(value) is int` accepts actual integer objects while excluding Boolean values.

Question 2

A Python automation task must make several independent network requests concurrently while waiting for I/O. Which standard-library feature is designed for asynchronous I/O?

  1. Aasyncio
  2. Bcsv
  3. Cpickle
  4. Dstatistics
Show answerCorrect answer: A

Python's asyncio library supports asynchronous programming, allowing tasks to yield control while waiting for I/O. The other modules serve unrelated purposes such as CSV handling, serialization, and statistical calculations.

Question 3

A Python function receives a list of interface names and should return a new list containing only names that begin with "GigabitEthernet". Which approach directly expresses this transformation?

  1. AFilter the list using a predicate that checks each name's prefix
  2. BSort the list and assume matching names appear first
  3. CConvert the list to a set and remove duplicates
  4. DJoin all names into one string and count its characters
Show answerCorrect answer: A

Filtering with a prefix predicate selects exactly the elements that meet the required condition, while preserving the original values and order in a typical list-filtering operation.

Question 4

An automation script processes a large collection of device records and needs to avoid modifying the collection while iterating over it. Which approach is generally safest when removing selected records?

  1. ABuild a separate filtered collection and use it after iteration
  2. BDelete elements from the collection during a for-each loop over it
  3. CRandomly reorder the collection before each deletion
  4. DReplace every record with an empty string during iteration
Show answerCorrect answer: A

Creating a separate filtered collection avoids changing the size or indexing of the collection being traversed, preventing skipped items and other iteration errors. Mutating a list during iteration can produce unexpected results.

Question 5

A developer wants to run a Python automation script with different command-line arguments for different device groups. Which standard-library module is designed to define and parse command-line options?

  1. A`argparse`
  2. B`logging`
  3. C`unittest`
  4. D`pathlib`
Show answerCorrect answer: A

The `argparse` module supports defining command-line arguments and parsing them into values for a program. The other modules serve logging, testing, and filesystem-path purposes.

Question 6

A controller returns timestamps in different time zones, and an automation report must compare them reliably. Which practice is best?

  1. AConvert timestamps to a common time standard, such as UTC, before comparison
  2. BRemove the time-zone information before comparing
  3. CCompare only the displayed hour and minute
  4. DAssume every timestamp uses the controller's local time
Show answerCorrect answer: A

Normalizing timestamps to a common standard such as UTC makes comparisons consistent across time zones and daylight-saving changes. Discarding zone information can make an instant ambiguous.

Question 7

A program calls a REST API with a token and wants to reduce the risk of exposing that token if network traffic is observed. Which transport choice is appropriate?

  1. AHTTPS with certificate verification enabled
  2. BPlain HTTP over an isolated subnet
  3. CTelnet to the API host
  4. DAn unencrypted TCP socket
Show answerCorrect answer: A

HTTPS protects traffic in transit using TLS, and certificate verification helps the client authenticate the server. Plain HTTP and other unencrypted transports do not provide equivalent confidentiality and server authentication.

How to use this practice test

Access the practice questions for free. A session presents up to 20 random questions from the 50-question bank, and results appear after the session. Use missed or uncertain answers to identify which Python behavior, API practice, or network-management operation to revisit.

Preparation tips

  • Practice distinguishing Python booleans from integers when validating API values; check how `isinstance` behaves with subclasses.
  • Compare synchronous and asynchronous approaches for I/O-bound network requests, and identify when concurrency can help without implying parallel CPU execution.
  • Review NETCONF operations by purpose, especially retrieving operational state versus reading or changing configuration.
  • Work through JSON parsing and API security scenarios, including malformed payload handling and HTTPS protection for tokens in transit.
  • Check how timezone-aware timestamps, command-line arguments, and duplicate webhook events affect reliable automation scripts.
Official sourceOfficial exam page ↗