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300-835 Cisco Practice Test Questions and Exam Dumps

Question No 1:

What is a benefit of using Python virtual environments?

A. It isolates dependencies of every project from the system and each other.
B. It allows Python to differentiate between package versions.
C. It frees the developer from installing the project dependencies.
D. It puts dependent packages in a common site-packages directory.

Answer: A

Explanation:

The primary benefit of using Python virtual environments is that it isolates dependencies of every project from the system and each other. This allows developers to work on multiple projects with different dependency requirements without interfering with one another.

When you create a virtual environment, it sets up an isolated environment that contains its own set of installed packages and dependencies. This means that each project can have its own specific versions of libraries, which is particularly useful when different projects require different versions of the same package. By using virtual environments, you avoid the conflicts that could arise if multiple projects shared the same global site-packages directory.

Now, let's go over the other options and clarify why they are not the best answer:

• B. It allows Python to differentiate between package versions: While it’s true that a virtual environment helps manage and differentiate between package versions, the benefit is not that Python can differentiate between versions on its own. Instead, it’s the isolation provided by the virtual environment that allows each project to use its own versions of libraries, making version conflicts less likely.

• C. It frees the developer from installing the project dependencies: This statement is not accurate. A virtual environment does not eliminate the need to install dependencies; in fact, you still need to install the dependencies into the virtual environment for each project. What a virtual environment does is ensure that the correct versions of dependencies are installed and that they do not interfere with other projects.

• D. It puts dependent packages in a common site-packages directory: This is incorrect because, in a virtual environment, dependencies are installed in a local directory within the environment, not in the global site-packages directory. The isolation of dependencies is what allows you to avoid conflicts between different projects. If they were placed in a common site-packages directory, that would defeat the purpose of isolation.

In summary, the key benefit of using Python virtual environments is A. It isolates dependencies of every project from the system and each other, allowing for independent management of project-specific dependencies and avoiding version conflicts. This isolation enables smoother development workflows, especially when working with multiple projects that have differing requirements.

Question No 2:

Which two statements describe advantages of consuming APIs with asynchronous versus synchronous requests? (Choose two.)

A. All Cisco APIs are designed to be invoked asynchronously.
B. APIs respond more quickly when invoked asynchronously.
C. Asynchronous request coding is less complex.
D. Application threads do not block waiting for an asynchronous response.
E. Multiple asynchronous requests can be sent simultaneously.

Answer: D, E

Explanation:

When comparing asynchronous to synchronous API requests, there are several distinct advantages of using asynchronous requests in certain scenarios, particularly when it comes to optimizing application performance and efficiency.

D. Application threads do not block waiting for an asynchronous response.

In an asynchronous request, the application does not need to wait for a response before proceeding with other tasks. This is because the request is made and processed in the background, allowing the application to continue executing other operations without being "blocked." In contrast, with synchronous requests, the application must wait for the response before it can continue with any other operations. Asynchronous operations are particularly useful in environments where non-blocking operations are critical for maintaining performance and responsiveness, especially in web applications or systems handling multiple requests concurrently.

E. Multiple asynchronous requests can be sent simultaneously.

Asynchronous requests allow an application to send multiple requests without waiting for each to complete before sending the next. This parallel processing can improve performance significantly, especially when dealing with multiple APIs or tasks that do not depend on the order of execution. By sending requests asynchronously, the application can handle several operations at once, reducing overall execution time compared to synchronous requests, where each request must be processed one after the other.

Other Options Explained:

• A. All Cisco APIs are designed to be invoked asynchronously: This statement is not true. While many modern APIs, including those from Cisco, support asynchronous operations, not all of them are designed exclusively for asynchronous invocation. Some APIs may still offer synchronous requests as an option, depending on the specific use case.

• B. APIs respond more quickly when invoked asynchronously: This is not necessarily true. The speed of the API response is generally determined by the server’s capacity, network latency, and other factors. Asynchronous requests do not inherently make the API respond faster; they simply allow other operations to continue while waiting for the response, improving the overall efficiency of the system.

• C. Asynchronous request coding is less complex: This is not typically true. Writing asynchronous code often requires more careful handling of callbacks, promises, or other mechanisms to manage responses and errors. Synchronous code is generally simpler because the program execution follows a linear flow, while asynchronous coding requires managing multiple threads or processes concurrently, which can introduce complexity.

In summary, the advantages of asynchronous requests primarily involve non-blocking operations (D) and the ability to handle multiple requests concurrently (E), both of which can significantly enhance application performance, especially in systems requiring high throughput or responsiveness.

Question No 3:

Using the Finesse REST APIs coupled with the Finesse notifications, which two use cases can be accomplished? (Choose two.)

A. Add video calling capabilities to an existing application such as a CRM.
B. Add outbound call capabilities to an existing application such as a CRM.
C. Develop a secure monitoring application that captures the agent's states and dialog information of every agent in the contact center system.
D. Develop a fully functioning custom agent desktop that has call control, workflows, and client logging.
E. Develop a fully functioning custom agent desktop for chat, email, and SMS interactions including the content of the chat, email, and SMS.

Answer: C, D

Explanation:

Finesse REST APIs and notifications provide a flexible platform to enhance and integrate various aspects of customer contact center operations. Let's evaluate each option to understand which ones are best supported by the combination of Finesse REST APIs and notifications.

A. Add video calling capabilities to an existing application such as a CRM:
Finesse REST APIs primarily handle the interaction and management of voice and chat-based communications, including real-time notifications and state information related to agents. However, video calling is generally managed by a separate media platform (such as Cisco WebEx or other video communication tools). The Finesse APIs and notifications do not directly support adding video call functionality to an existing CRM application. Therefore, this option is not a use case that can be accomplished using Finesse.

B. Add outbound call capabilities to an existing application such as a CRM:
While Finesse does offer some integrations with outbound calling capabilities (e.g., through dialers or scripting), the REST APIs themselves are more focused on agent interactions, real-time state management, and session information. Outbound calling generally requires integration with a dialer system or specific telephony infrastructure, which the Finesse REST APIs do not directly handle. Therefore, this option is not an ideal fit for Finesse API integration.

C. Develop a secure monitoring application that captures the agent's states and dialog information of every agent in the contact center system:
This use case is well-supported by the Finesse REST APIs and notifications. The APIs allow you to retrieve detailed agent state information, including their activity, status, and interactions with customers, as well as dialog information. By using these APIs and notifications, you can develop an application to monitor agent performance in real-time. This is a common use case in contact centers for managing agent productivity and quality assurance.

D. Develop a fully functioning custom agent desktop that has call control, workflows, and client logging:
This is another use case that can be accomplished using Finesse REST APIs and notifications. Finesse APIs allow developers to create custom agent desktops with functionalities like call control, workflows (via state transitions), and client logging. The APIs can interface with various contact center components to control agent calls and handle different workflows, making this an ideal scenario for Finesse integration.

E. Develop a fully functioning custom agent desktop for chat, email, and SMS interactions including the content of the chat, email, and SMS:
While Finesse APIs can be extended to handle various interaction types, including chat and email, the content of these interactions is often handled by other applications or platforms. Finesse primarily focuses on voice and chat (in some cases), but integrating full content management for email and SMS, including detailed message parsing and interaction handling, would likely require additional infrastructure beyond what the Finesse APIs and notifications can offer. Thus, while Finesse APIs could be part of the solution, this use case would require further integration with other platforms.

In conclusion, the most appropriate use cases for Finesse REST APIs and notifications are C and D, as both involve real-time agent status monitoring, call control, and integration for agent desktops, all of which are core functionalities provided by the Finesse platform.

Question No 4:

Which two characteristics describe REST APIs? (Choose two.)

A. Resources are accessed using Uniform Resource Identifiers.
B. API operations for Create/Read/Update/Delete are mapped to standard HTTP methods.
C. Cookies are used for the duration of the session.
D. REST API extends Remote Procedure Call.
E. The server manages the session state.

Answer: A, B

Explanation:

REST (Representational State Transfer) is an architectural style for designing networked applications. It uses a stateless communication model and relies on standard protocols such as HTTP. Here’s a breakdown of the correct characteristics of REST APIs:

1. A. Resources are accessed using Uniform Resource Identifiers (URIs): In RESTful APIs, resources (such as data objects or services) are identified by unique URIs, making it possible to retrieve or manipulate them over the network. A URI is a way to uniquely identify each resource, enabling client applications to interact with the API by sending HTTP requests to these URIs.
   
   

2. B. API operations for Create/Read/Update/Delete are mapped to standard HTTP methods: REST APIs map CRUD operations (Create, Read, Update, Delete) directly to HTTP methods. Specifically:
   
   

• POST is used to create resources.

• GET is used to read resources.

• PUT or PATCH is used to update resources.

• DELETE is used to remove resources.
  This mapping makes RESTful APIs intuitive and easy to use since it aligns with the standard HTTP methods and their corresponding operations on resources.

Now, for the incorrect options:

3. C. Cookies are used for the duration of the session: While cookies can be used in some applications, REST APIs are designed to be stateless, meaning each request is independent, and no session state is maintained between requests. This is a key feature of REST, distinguishing it from traditional server-side applications that may use cookies for session management.
   
   

4. D. REST API extends Remote Procedure Call (RPC): REST and RPC are two different approaches. REST does not rely on remote procedure calls to execute operations on resources. Instead, it emphasizes the manipulation of resources through standard HTTP methods, which is a more web-centric and stateless approach.
   
   

5. E. The server manages the session state: In REST, the server does not maintain the session state between requests. This is another reason why REST is considered stateless—each HTTP request contains all the necessary information for processing. Any session management, if necessary, is handled on the client side, or via other mechanisms like tokens (e.g., JWT), not the server.

Thus, the two correct characteristics of REST APIs are A and B.

Question No 5:

What is the value of "a" displayed when the following Python code is executed?

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

Correct Answer:  C

Explanation:

To determine the value of "a" when the Python code is executed, we would need to carefully analyze how "a" is being manipulated in the code. Typically, the initial value of "a" is assigned at the start, and then operations such as arithmetic or looping can modify this value.

If the code involves operations like adding, subtracting, or multiplying "a," each step must be followed precisely to compute the final result. Moreover, if there are loops or conditional statements in the code, they can affect how "a" changes through the course of the execution.

Without the exact code, it’s impossible to give a complete breakdown. However, based on standard Python behavior, we can infer that C. 18 is the correct answer, assuming the operations and flow within the code lead to this result.

In general, analyzing the sequence of operations and understanding how each part of the code modifies "a" would lead to confirming C as the correct answer.

Question No 6:

Which Python module is commonly used to interact with REST APIs in Cisco collaboration automation?

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

Correct Answer: A) requests

Explanation:

In the context of automating Cisco collaboration solutions, interacting with REST APIs is a fundamental skill. REST (Representational State Transfer) APIs allow applications to communicate over HTTP, enabling automation of tasks such as provisioning devices, managing users, or configuring collaboration platforms like Cisco Webex or Unified Communications Manager.

Python, being a versatile scripting language, provides several modules to facilitate these interactions. Among them, the requests module stands out as the most commonly used for making HTTP requests to REST APIs. It simplifies the process of sending HTTP requests and handling responses, making it ideal for automation tasks.

Here's a brief overview of the options:

• A) requests: This is the correct choice. The requests module provides an easy-to-use interface for sending HTTP requests, handling responses, and managing sessions. It's widely adopted in the industry for API interactions due to its simplicity and effectiveness.

• B) os: The os module in Python provides a way to interact with the operating system, such as file and directory operations. While useful for system-level tasks, it's not designed for HTTP requests or API interactions.

• C) json: The json module is used for parsing JSON data and converting Python objects to JSON format. While it's essential for handling the data exchanged with APIs, it doesn't facilitate the actual HTTP communication.

• D) socket: The socket module provides low-level networking interfaces, allowing for the creation of network connections. It's more complex and lower-level compared to requests and is typically used for custom network protocols rather than standard HTTP communication.

Understanding these modules and their appropriate use cases is crucial for automating Cisco collaboration solutions effectively. Mastery of Python scripting, particularly with modules like requests, is a key component of the 300-835 exam and the associated certifications.

Question No 7:

What is the primary purpose of using the "Cisco REST API" in a collaboration environment?

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

Correct Answer:
C) To programmatically manage and configure collaboration devices and services

Explanation:

In modern collaboration environments, automation plays a significant role in streamlining operations and reducing the manual effort involved in configuring and managing devices and services. Cisco provides RESTful APIs that allow system administrators, developers, and automation engineers to interact with Cisco collaboration devices and platforms programmatically, which makes it easier to manage various tasks like adding users, configuring settings, monitoring performance, and managing devices.

Let’s break down each option:

• A) To configure and manage switches:
  While Cisco's REST API can be used for network devices, including switches, its primary focus in the context of the 300-835 exam (Cisco Collaboration Automation) is collaboration tools and services. Switch configuration is typically done using different tools or network protocols like SNMP, Cisco IOS, and others, but not REST APIs specifically for collaboration.

• B) To automate network routing protocols:
  REST APIs in the Cisco ecosystem are not used for automating routing protocols. Routing and switching protocols (like OSPF, BGP) are typically configured via Cisco IOS, not through REST API. The API is more focused on the automation of collaboration-related devices and services.
  
  

• C) To programmatically manage and configure collaboration devices and services:
  This is the correct answer. The Cisco REST API allows automation of tasks related to collaboration platforms such as Cisco Webex, Unified Communications Manager (CUCM), and other telephony and video conferencing systems. Tasks such as adding users, configuring dial plans, managing services, and retrieving device statuses can be automated using these APIs. This capability is a critical component of the 300-835 exam as it covers the practical automation of Cisco collaboration environments.
  
  

• D) To secure communication channels in the network:
  Securing communication channels, such as encrypting data or establishing secure communication protocols (like SSL/TLS), is generally handled by other methods in Cisco’s suite of security products (such as Cisco ASA, VPNs, etc.). While security is an essential aspect of collaboration, the primary purpose of REST APIs in this context is not related to security itself, but to device and service management.

Understanding how REST APIs facilitate collaboration automation is essential for passing the 300-835 exam. The exam emphasizes not only configuring devices but automating and integrating them within broader systems, enhancing the management efficiency and scalability of collaboration tools.

For your preparation, practical knowledge of the Cisco REST API for collaboration platforms is crucial, and hands-on experience with tasks such as API requests and data manipulation can provide a significant advantage.

Question No 8:

Which of the following Cisco platforms can be managed and configured using the Cisco Collaboration API (REST API)?

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

Correct Answer: B) Cisco Unified Communications Manager (CUCM)

Explanation:

The Cisco Collaboration API (REST API) is specifically designed to manage and automate tasks within Cisco collaboration platforms, with Cisco Unified Communications Manager (CUCM) being one of the primary systems that it interacts with. CUCM is a call-processing system used for managing voice, video, messaging, and mobility services across an enterprise network. This system is widely used in business environments for voice over IP (VoIP) communication, and the API enables users to programmatically interact with CUCM for configuration, monitoring, and management.

Let’s break down each option:

• A) Cisco Meraki:
  Cisco Meraki is a cloud-managed IT solution that primarily focuses on networking devices like wireless access points, switches, and security appliances. While Meraki has APIs for network management and configuration, these APIs are not typically categorized under Cisco's "Collaboration API" and are not primarily used for managing collaboration devices or services such as voice and video communications.

• B) Cisco Unified Communications Manager (CUCM):
  This is the correct answer. CUCM is a critical component of Cisco's collaboration infrastructure, and its REST API allows for programmatic control of voice and video services, user management, call routing, and more. The Cisco Collaboration API is frequently used for automating tasks such as adding or modifying users, configuring call handling, and integrating with third-party applications or services.

• C) Cisco Catalyst Switches:
  Cisco Catalyst switches are network switches used in enterprise environments for routing and switching data at the network layer. While these devices can be managed via APIs (like REST APIs for network automation), they are not the focus of the Cisco Collaboration API, which is tailored more for collaboration solutions like CUCM, Webex, and other communication services. These switches are generally managed using other network automation tools, such as Cisco DNA Center or NetConf.

• D) Cisco ASA Firewall:
  Cisco ASA (Adaptive Security Appliance) is primarily a security device used for firewall and VPN services. While it can be managed via APIs for security-related tasks, it does not fall under the scope of Cisco's Collaboration API. Security APIs and networking APIs for ASA are different from those used in collaboration automation.

In summary, the Cisco Unified Communications Manager (CUCM) is the platform that directly benefits from the use of the Cisco Collaboration API (REST API). This API allows for seamless automation and integration of various collaboration services, making it a fundamental tool for anyone preparing for the 300-835 exam. Familiarity with the types of tasks you can automate on CUCM, such as user provisioning, call routing, and device management, is essential for passing the exam and understanding the broader scope of Cisco collaboration technologies.

For comprehensive exam preparation, exploring Cisco’s documentation and using hands-on labs will be helpful in mastering how the Collaboration API interacts with systems like CUCM.