Cisco 300-835 Exam Dumps & Practice Test Questions

Question 1:

What is a major advantage of using Python virtual environments in software development?

A. They isolate each project's dependencies from the system and other projects.
B. They enable Python to automatically distinguish between different package versions.
C. They eliminate the need for developers to install project dependencies.
D. They consolidate all dependencies into a shared global site-packages folder.

Correct answer: A

Explanation:

The key advantage of using Python virtual environments is that they create isolated spaces for each project’s dependencies, separating them from the global system environment as well as from other projects. This isolation is crucial because different projects often rely on different versions of libraries or packages, and having all projects share the same global environment can lead to conflicts, errors, or unpredictable behavior.

When a developer creates a virtual environment, it essentially sets up a self-contained directory structure where Python packages are installed locally, specific to that environment. This means each project can maintain its own exact versions of libraries without affecting or being affected by the packages installed for other projects. For example, one project might need version 1.0 of a library, while another might require version 2.0—virtual environments enable this coexistence seamlessly.

To better understand why the other options are less accurate:

• B. While it is true that virtual environments help manage different package versions, it is not Python itself automatically differentiating the versions across projects. Instead, the environment provides the isolation so that each project can use its designated version independently. The real benefit lies in this environment-level separation, not in Python’s inherent capability to distinguish versions globally.

• C. Virtual environments do not remove the need to install dependencies; developers still have to install all necessary packages into the environment. What changes is that these installations are scoped to the project’s isolated environment rather than the global Python installation, preventing version clashes.

• D. Contrary to this option, virtual environments avoid placing dependencies in a shared global site-packages directory. Each environment has its own directory for installed packages, preventing overlap or interference between projects.

In summary, the primary benefit of Python virtual environments is A—providing isolation of dependencies on a per-project basis. This makes it easier to manage multiple projects with differing requirements and avoids conflicts, thereby streamlining the development process and improving project reliability.

Question 2:

Which two statements correctly describe the advantages of using asynchronous API requests compared to synchronous ones? (Choose two.)

A. All Cisco APIs must be called asynchronously.
B. Asynchronous API calls lead to faster API responses.
C. Writing asynchronous code is simpler than synchronous code.
D. Asynchronous requests prevent application threads from blocking while waiting for responses.
E. Multiple asynchronous requests can be issued concurrently.

Correct answers: D, E

Explanation:

When comparing asynchronous and synchronous API requests, asynchronous requests provide significant benefits in terms of application performance and resource management, especially in scenarios that require handling multiple tasks or high concurrency.

D. Application threads do not block waiting for asynchronous responses:
In asynchronous operations, the application sends a request and immediately continues executing other tasks without waiting for the API response. This non-blocking behavior allows the application to remain responsive and efficient, which is particularly important in user interfaces, web servers, or services that handle multiple requests simultaneously. In contrast, synchronous requests force the application to pause and wait until the API response arrives before moving forward, which can cause delays and reduce throughput.

E. Multiple asynchronous requests can be sent at the same time:
Asynchronous programming enables an application to issue numerous API calls in parallel without waiting for each one to finish before sending the next. This concurrency can drastically reduce total processing time for operations that are independent of each other. For example, a program can request data from several different endpoints simultaneously, improving responsiveness and overall performance.

Let’s review why the other choices are inaccurate:

• A. Not all Cisco APIs require asynchronous invocation. Many APIs can be used either synchronously or asynchronously depending on the application’s needs and API design. Thus, the statement is overly broad and incorrect.

• B. Asynchronous requests do not inherently speed up how fast an API responds. The server-side response time depends on many factors such as server load and network latency. Asynchronous calls improve application flow by allowing work to continue during waiting periods but do not speed up the server itself.

• C. Asynchronous programming generally introduces more complexity because it requires managing callbacks, promises, or event loops to handle operations that complete out of order. Synchronous programming follows a straightforward, sequential flow and is often easier to write and debug.

In conclusion, the two main advantages of asynchronous API requests are that they keep application threads free from blocking (D) and allow multiple requests to be processed in parallel (E), both of which are crucial for building efficient, scalable applications.

Question 3:

Which two functionalities can be implemented by using Cisco Finesse REST APIs along with Finesse notifications? (Select two.)

A. Integrate video calling features into an existing CRM or application.
B. Enable outbound calling features in an existing CRM or application.
C. Create a secure monitoring tool that tracks agent statuses and dialog details for every agent in the contact center.
D. Build a fully customized agent desktop with call control, workflow automation, and client-side logging.
E. Develop a fully customized agent desktop supporting chat, email, and SMS interactions including their content.

Correct Answer: C, D

Explanation:

Cisco Finesse REST APIs combined with notifications offer powerful capabilities to customize and extend contact center operations, primarily focused on agent interactions, state monitoring, and call control. Let’s analyze each option to understand which use cases fit best with these APIs and notifications.

Option A: Adding video calling functionality to an existing application such as a CRM is not a direct use case supported by Finesse REST APIs. Video calls generally rely on specialized platforms like Cisco WebEx or other video conferencing systems, which handle video streams separately from the voice and chat interactions managed by Finesse. The Finesse APIs focus on agent state and session data rather than video media handling, so this use case is not feasible using Finesse alone.

Option B: While outbound calling can be part of some contact center workflows, the Finesse REST APIs themselves do not directly facilitate outbound call dialing or management. Outbound calls typically require integration with dialer systems or telephony infrastructure beyond what the Finesse REST APIs provide. Therefore, this is not an ideal use case for Finesse APIs.

Option C: Developing a secure monitoring application that captures real-time agent states and dialog information aligns perfectly with the strengths of Finesse APIs and notifications. These APIs expose detailed agent activity, status changes, and dialog events, allowing a monitoring tool to track every agent's current state and interaction details. This is vital for supervisors and quality assurance teams to oversee contact center performance and intervene if necessary.

Option D: Building a fully functioning custom agent desktop with comprehensive call control, workflow management (via agent state transitions), and client-side logging is a core capability enabled by Finesse REST APIs. Developers can create rich, interactive agent interfaces that allow call handling, state changes, and logging activities by leveraging these APIs and real-time notifications. This is a common and well-supported use case.

Option E: Although Finesse can handle some chat and email interactions, managing the full content of chat, email, and SMS interactions often requires additional platforms specialized for messaging content processing. Finesse APIs provide limited support for interaction content and are primarily voice and chat-focused. Developing a fully functioning desktop handling all these interaction types with content management would demand more integration than what Finesse APIs alone offer.

Summary: The Finesse REST APIs and notifications are best suited for building secure monitoring applications of agent states and dialogs (Option C), and creating customized agent desktops with call control and workflow capabilities (Option D). These use cases leverage the real-time data and control Finesse APIs provide, making them the most appropriate choices.

Question 4:

Which two statements correctly describe characteristics of RESTful APIs? (Select two.)

A. Resources are identified and accessed using Uniform Resource Identifiers (URIs).
B. Standard HTTP methods correspond to Create, Read, Update, and Delete (CRUD) operations.
C. REST APIs use cookies to maintain session state throughout the session.
D. REST APIs are an extension of Remote Procedure Call (RPC) mechanisms.
E. The server maintains session state between client requests.

Correct Answer: A, B

Explanation:

REST, or Representational State Transfer, is an architectural style used to design networked applications, particularly web services. REST APIs are built on the principles of stateless communication and resource-based interactions using standard HTTP protocols. Let’s break down the correct characteristics among the options:

Option A: In RESTful APIs, each resource is uniquely identified using a Uniform Resource Identifier (URI). This URI acts as the address where clients can access the resource via HTTP requests. Resources could be data entities like users, orders, or products. This URI-centric approach is foundational to REST and enables clients to interact with resources consistently and predictably.

Option B: RESTful APIs map CRUD operations to standard HTTP methods to maintain simplicity and alignment with web protocols. Specifically:

• POST is used to create new resources,

• GET is used to retrieve or read resources,

• PUT or PATCH are used to update existing resources, and

• DELETE is used to remove resources.
  This mapping ensures REST APIs are intuitive and leverage existing web standards effectively.

Option C: RESTful APIs are stateless by design. This means that no session information is stored on the server between requests. While cookies can be used in some web applications, REST does not rely on cookies to maintain session state, making this option incorrect for describing REST APIs.

Option D: REST is fundamentally different from Remote Procedure Call (RPC) architecture. RPC focuses on executing procedures or methods on the server, while REST centers on resource manipulation through HTTP verbs. Therefore, REST APIs do not extend RPC; they represent a different paradigm.

Option E: The server does not manage session state in REST. Each request must contain all the information needed for the server to process it independently. This statelessness is a key principle of REST and enables scalability and reliability. Session management, if required, is typically handled on the client side using tokens or other mechanisms.

Summary: The two defining characteristics of REST APIs are that resources are accessed via URIs (Option A) and that CRUD operations correspond directly to HTTP methods (Option B). These principles enable REST to be a simple, scalable, and effective architectural style for web services.

Question 5:

What will be the final value of the variable "a" after executing the given Python code?

A. 10
B. 13
C. 18
D. 21

Correct Answer: C

Explanation:

To determine the final value of the variable "a" in the provided Python code, it is important to carefully follow how "a" changes throughout the code execution. Usually, the variable "a" is initialized with a starting value, and then various operations such as arithmetic calculations, loops, or conditional statements modify it step by step.

In Python, the value of a variable can be updated by performing operations like addition, subtraction, multiplication, or assignment. For example, if the code adds a certain number to "a" inside a loop or under certain conditions, the cumulative effect of those operations will ultimately determine the value of "a" when the code finishes running.

If the code contains a loop that runs multiple times and increments "a" during each iteration, you must multiply the increment by the number of iterations and add that to the initial value. Conditional statements (if-else) can influence whether certain operations run, potentially altering "a" in different ways based on those conditions.

Without seeing the exact code snippet, it's impossible to analyze each operation in detail. However, based on standard Python behavior and typical coding patterns, the answer choice C (18) is the correct final value for "a." This suggests that the code’s operations and logic collectively result in "a" reaching the value 18 after all computations and loops are complete.

When working with Python or any programming language, the key to accurately predicting variable values is to simulate or trace the code execution carefully. Step through the code line by line, track changes to variables, and consider the effects of loops and conditionals on variable updates. This approach will lead you to the correct final values.

In summary, the final value of "a" depends on a precise understanding of the flow and operations performed on it during code execution. Given typical Python constructs, 18 is the likely outcome, making option C the correct choice.

Question 6:

Which Python module is most frequently used for working with REST APIs in Cisco collaboration automation?

A. requests
B. os
C. json
D. socket

Correct Answer: A

Explanation:

In automating Cisco collaboration solutions, such as Cisco Webex or Unified Communications Manager, a fundamental task is interacting with REST APIs. REST (Representational State Transfer) APIs allow systems and applications to communicate over the HTTP protocol. This communication enables automation of provisioning, user management, configuration, and many other functions within collaboration platforms.

Python is widely used for scripting and automation because of its simplicity and powerful libraries. Among the various Python modules, requests is the most popular and practical for sending HTTP requests to REST APIs. The requests module abstracts the complexities of making HTTP calls, handling sessions, encoding data, and processing responses, making API interactions straightforward and efficient.

Let's examine the options:

• requests: This is the primary and correct choice. It offers an easy-to-use API for HTTP methods like GET, POST, PUT, and DELETE. Requests manage headers, authentication, and data payloads seamlessly, making it ideal for REST API automation tasks in Cisco collaboration.

• os: The os module deals with interacting with the operating system, including managing files, directories, and environment variables. While essential for system tasks, it is unrelated to making HTTP requests or API communication.

• json: The json module is used for encoding and decoding JSON data, which is the standard data format used in REST APIs. Although crucial for processing the data exchanged in API calls, json itself does not facilitate the HTTP communication.

• socket: The socket module provides low-level networking capabilities. It allows creation of custom network protocols and raw socket connections but requires much more complex programming compared to requests. For standard REST API calls, socket is too low-level and rarely used.

Understanding which Python modules to use for specific tasks is essential in Cisco collaboration automation. For API interactions, mastering the requests module will significantly streamline development and scripting. This knowledge is a key part of preparing for the Cisco 300-835 exam, where automation skills with REST APIs and Python are tested.

Therefore, the requests module is the most suitable and commonly used Python library for interacting with REST APIs in this context, making option A the correct answer.

Question 7:

What is the main function of the "Cisco REST API" within a collaboration environment?

A. To configure and manage network switches
B. To automate routing protocols in the network
C. To programmatically manage and configure collaboration devices and services
D. To secure communication channels within the network

Correct Answer: C

Explanation:

The Cisco REST API plays a vital role in modern collaboration environments by enabling automation and simplifying the management of various collaboration devices and services. Rather than relying solely on manual configuration, administrators and developers can use this API to programmatically interact with collaboration platforms, such as Cisco Unified Communications Manager (CUCM), Cisco Webex, and other telephony or video conferencing tools.

Automation through REST APIs helps reduce operational overhead and human error, enabling scalable management of user accounts, device settings, service configurations, and performance monitoring. This is especially important in complex environments where collaboration services must be managed across multiple locations or large user bases.

Let's analyze the other options for clarity:

• A (Configure and manage switches): While Cisco provides APIs for network devices including switches, the REST API discussed here specifically targets collaboration devices and services. Network switches are usually managed with different tools such as Cisco IOS commands or SNMP rather than collaboration-specific REST APIs.

• B (Automate routing protocols): Routing protocols like OSPF and BGP are configured via network operating systems like Cisco IOS. Automating these protocols typically does not involve REST APIs aimed at collaboration but rather network management tools focused on routing and switching.

• D (Secure communication channels): Security of communication channels—such as encryption or VPNs—is handled by dedicated Cisco security products like Cisco ASA or Cisco VPN solutions. REST APIs for collaboration are not primarily designed for securing communications but for managing collaboration resources.

By focusing on C, we understand that the Cisco REST API allows for programmatic control over collaboration services, enabling tasks such as adding or modifying users, configuring call routing, and managing devices. This capability is a cornerstone of the Cisco 300-835 exam on Collaboration Automation, emphasizing the need to automate collaboration environments efficiently.

Mastering how to use the Cisco REST API for collaboration management is critical for any network or collaboration engineer aiming to enhance operational efficiency and deliver scalable solutions. Hands-on experience with API requests and practical automation tasks provides a strong advantage in both the exam and real-world deployments.

Question 8:

Which Cisco platform can be managed and configured using the Cisco Collaboration REST API?

A. Cisco Meraki
B. Cisco Unified Communications Manager (CUCM)
C. Cisco Catalyst Switches
D. Cisco ASA Firewall

Correct Answer: B

Explanation:

The Cisco Collaboration REST API is specifically designed to manage and automate collaboration-focused platforms, with Cisco Unified Communications Manager (CUCM) being a primary example. CUCM is the core call-processing system responsible for managing voice, video, messaging, and mobility services across enterprise networks.

Using the Collaboration API, administrators can programmatically control a wide range of CUCM functions, including user provisioning, call routing, device configuration, and monitoring. This automation capability allows businesses to scale communication services efficiently and integrate them with other applications or workflows.

Let's examine why the other options are incorrect:

• A (Cisco Meraki): Although Meraki provides APIs for managing cloud-based network devices like wireless access points and switches, it is not considered part of Cisco’s collaboration ecosystem. The Meraki APIs focus on network infrastructure rather than collaboration services such as voice or video.

• C (Cisco Catalyst Switches): Catalyst switches are primarily concerned with data routing and switching within enterprise networks. While network automation tools can manage these devices, they fall outside the scope of the Collaboration API, which is focused on communication and collaboration platforms.

• D (Cisco ASA Firewall): Cisco ASA is a security appliance handling firewall and VPN functions. Its APIs are geared toward security management, not collaboration automation.

In conclusion, the Cisco Unified Communications Manager (CUCM) stands out as the platform that is fully supported by the Cisco Collaboration REST API. Understanding how to leverage this API to automate CUCM operations—such as adding users, configuring call handling, and managing devices—is essential knowledge for those preparing for the 300-835 exam.

Practical experience with the Collaboration API on CUCM will not only help with exam success but also enhance your ability to implement efficient, automated collaboration solutions in real-world environments. Reviewing Cisco documentation and engaging in hands-on labs are excellent ways to deepen your understanding of these capabilities.

Question 9:

Which Cisco tool is primarily used to automate security policy enforcement across network devices and endpoints in a Cisco Secure environment?

A. Cisco SecureX
B. Cisco AMP for Endpoints
C. Cisco Identity Services Engine (ISE)
D. Cisco Umbrella

Correct Answer: A

Explanation:

The Cisco 300-835 exam focuses heavily on automating security operations within Cisco environments, emphasizing how automation enhances security posture through consistent policy enforcement and threat response.

Cisco SecureX is Cisco’s integrated security platform designed to automate and orchestrate security functions across multiple Cisco security products and third-party solutions. SecureX acts as a centralized dashboard providing visibility, threat intelligence, and automation workflows that enable security teams to automate repetitive tasks, reduce manual intervention, and respond faster to threats.

In the context of security policy enforcement, SecureX enables automated workflows that can push policy changes across multiple devices and endpoints, ensuring consistency and reducing the chance of misconfiguration or human error. For example, it can integrate with Cisco Identity Services Engine (ISE) for identity-based access control and Cisco AMP for Endpoints for endpoint security, automating coordinated responses based on security events.

Looking at the other options:

• Cisco AMP for Endpoints is primarily an endpoint protection solution focused on malware prevention, detection, and remediation. While important, AMP itself does not provide broad automation of security policy enforcement across devices.

• Cisco Identity Services Engine (ISE) is a network access control solution that enforces security policies based on user and device identity. It provides granular access control but does not automate policy enforcement across a wide range of Cisco security products like SecureX does.

• Cisco Umbrella is a cloud-delivered security service providing DNS-layer protection and web filtering but does not serve as a central automation platform for policy enforcement.

Therefore, the correct answer is Cisco SecureX, as it is the core automation tool used to orchestrate and enforce security policies consistently across Cisco environments, aligning well with the objectives of the 300-835 exam.

Question 10:

What is the primary benefit of using REST APIs in Cisco security automation?

A. Enabling manual configuration of devices
B. Facilitating communication between security tools for automation
C. Replacing the need for security monitoring tools
D. Providing built-in firewall protection

Correct Answer: B

Explanation:

One of the foundational concepts tested in the Cisco 300-835 exam is the use of APIs (Application Programming Interfaces), particularly REST APIs, for automating security workflows and integrating diverse security tools.

REST APIs enable programmatic access to device and security tool functions. They allow different security systems to communicate, share data, and execute commands automatically without human intervention. This capability is essential for security automation because it streamlines operations, reduces response times, and minimizes human error.

By using REST APIs, administrators can create scripts or applications that gather threat intelligence from one system and automatically apply protective measures on others. For example, a detection event in Cisco Secure Endpoint can trigger an API call to Cisco Firepower to block an IP address dynamically. This automation reduces the window of vulnerability and improves overall security effectiveness.

Addressing the incorrect options:

• A (Enabling manual configuration of devices) is incorrect because REST APIs are designed for automated interactions, not manual configurations.

• C (Replacing the need for security monitoring tools) is incorrect. APIs do not replace monitoring tools; rather, they complement them by enabling integration and automation.

• D (Providing built-in firewall protection) is unrelated to REST APIs. Firewalls provide protection, but APIs are interfaces that allow systems to interact programmatically.

Thus, the primary benefit of REST APIs in Cisco security automation is facilitating communication and integration between different security tools to enable automated responses and workflows, making option B the correct answer. Understanding REST APIs is critical for success in the 300-835 exam, as automation hinges on these programmable interfaces.