D416 DevNet Fundamentals
Access The Exact Questions for D416 DevNet Fundamentals
💯 100% Pass Rate guaranteed
🗓️ Unlock for 1 Month
Rated 4.8/5 from over 1000+ reviews
- Unlimited Exact Practice Test Questions
- Trusted By 200 Million Students and Professors
Starting from
$30/month
What’s Included:
- Unlock 100 + Actual Exam Questions and Answers for D416 DevNet Fundamentals on monthly basis
- Well-structured questions covering all topics, accompanied by organized images.
- Learn from mistakes with detailed answer explanations.
- Easy To understand explanations for all students.
Your Total Access Study Kit: Available D416 DevNet Fundamentals : Practice Questions & Answers
Free D416 DevNet Fundamentals Questions
1.
How do Docker containers differ from traditional VMs?
- Docker uses more resources, runs full OS.
- Both provide similar isolation and resource usage.
- Docker offers better isolation with separate kernels.
- Docker shares host OS kernel, requires less resources.
Explanation
Explanation
Docker containers differ from traditional virtual machines (VMs) in that they share the host operating system’s kernel instead of running a full operating system for each instance. This approach makes containers lightweight, faster to start, and more efficient in resource usage compared to VMs, which require separate OS installations and hypervisors. As a result, Docker containers are ideal for microservices and cloud-native applications where scalability and portability are key.
Correct Answer:
Docker shares host OS kernel, requires less resources.
Docker containers differ from traditional virtual machines (VMs) in that they share the host operating system’s kernel instead of running a full operating system for each instance. This approach makes containers lightweight, faster to start, and more efficient in resource usage compared to VMs, which require separate OS installations and hypervisors. As a result, Docker containers are ideal for microservices and cloud-native applications where scalability and portability are key.
Correct Answer:
Docker shares host OS kernel, requires less resources.
2.
Discuss the significance of having a unified way of interacting in Model-Driven Programmability for infrastructure automation.
- A unified way of interacting complicates the management of devices and increases errors.
- A unified way of interacting simplifies the management of diverse devices and reduces complexity.
- A unified way of interacting eliminates the need for automation.
- A unified way of interacting is only beneficial for specific vendors.
Explanation
Explanation
In Model-Driven Programmability, having a unified way of interacting allows network engineers and developers to manage and configure various network devices using consistent models and standardized interfaces. This reduces complexity, minimizes configuration errors, and enhances automation across multi-vendor environments. It enables interoperability and ensures scalability in infrastructure management.
Correct Answer:
A unified way of interacting simplifies the management of diverse devices and reduces complexity.
In Model-Driven Programmability, having a unified way of interacting allows network engineers and developers to manage and configure various network devices using consistent models and standardized interfaces. This reduces complexity, minimizes configuration errors, and enhances automation across multi-vendor environments. It enables interoperability and ensures scalability in infrastructure management.
Correct Answer:
A unified way of interacting simplifies the management of diverse devices and reduces complexity.
3.
What does SDK stand for in the context of software development?
- Software Design Kit
- System Design Kit
- Standard Development Knowledge
- Software Development Kit
Explanation
Explanation
SDK stands for Software Development Kit. It is a collection of software tools, libraries, documentation, and code samples that developers use to create applications for specific platforms or frameworks. SDKs help streamline development by providing pre-built functionalities and APIs, allowing programmers to integrate features and interact efficiently with operating systems or hardware components.
Correct Answer:
Software Development Kit
SDK stands for Software Development Kit. It is a collection of software tools, libraries, documentation, and code samples that developers use to create applications for specific platforms or frameworks. SDKs help streamline development by providing pre-built functionalities and APIs, allowing programmers to integrate features and interact efficiently with operating systems or hardware components.
Correct Answer:
Software Development Kit
4.
Why is Basic Authentication considered less secure compared to other API authentication mechanisms?
- Basic Authentication transmits credentials in an easily decodable format, making it vulnerable to interception.
- Basic Authentication is the only method that does not require a password.
- Basic Authentication requires complex tokens that are hard to guess.
- Basic Authentication uses encryption to protect user credentials during transmission.
Explanation
Explanation
Basic Authentication sends the username and password encoded in Base64, which is easily decodable and provides no real encryption. If transmitted over an unsecured connection (HTTP instead of HTTPS), these credentials can be intercepted by attackers through network sniffing. More secure authentication mechanisms, such as Token-based or OAuth, use encrypted tokens or dynamic credentials that minimize exposure risks.
Correct Answer:
Basic Authentication transmits credentials in an easily decodable format, making it vulnerable to interception.
Basic Authentication sends the username and password encoded in Base64, which is easily decodable and provides no real encryption. If transmitted over an unsecured connection (HTTP instead of HTTPS), these credentials can be intercepted by attackers through network sniffing. More secure authentication mechanisms, such as Token-based or OAuth, use encrypted tokens or dynamic credentials that minimize exposure risks.
Correct Answer:
Basic Authentication transmits credentials in an easily decodable format, making it vulnerable to interception.
5.
Which OSI layer is primarily associated with data link layer devices like switches?
- Layer 3
- Layer 4
- Layer 2
- Layer 1
Explanation
Explanation
Switches operate primarily at Layer 2 of the OSI (Open Systems Interconnection) model, known as the Data Link Layer. This layer is responsible for node-to-node data transfer, MAC address identification, and frame switching within a local network. By using MAC addresses to forward frames, switches enable efficient communication between devices on the same network segment, distinguishing them from routers, which operate at Layer 3 (the Network Layer).
Correct Answer:
Layer 2
Switches operate primarily at Layer 2 of the OSI (Open Systems Interconnection) model, known as the Data Link Layer. This layer is responsible for node-to-node data transfer, MAC address identification, and frame switching within a local network. By using MAC addresses to forward frames, switches enable efficient communication between devices on the same network segment, distinguishing them from routers, which operate at Layer 3 (the Network Layer).
Correct Answer:
Layer 2
6.
What HTTP method is used to create a new resource in a RESTful API, such as a room in Cisco Webex?
- GET
- POST
- UPDATE
- PUT
Explanation
Explanation
The POST method in RESTful APIs is specifically designed to create new resources on the server. When a client sends a POST request—such as creating a new room in Cisco Webex—it submits data to the server, which processes the request and generates the new resource. Unlike PUT, which typically updates an existing resource, POST initiates the creation process and often results in a new unique identifier being assigned by the server.
Correct Answer:
POST
The POST method in RESTful APIs is specifically designed to create new resources on the server. When a client sends a POST request—such as creating a new room in Cisco Webex—it submits data to the server, which processes the request and generates the new resource. Unlike PUT, which typically updates an existing resource, POST initiates the creation process and often results in a new unique identifier being assigned by the server.
Correct Answer:
POST
7.
What is the purpose of the 'Environments' feature in Postman?
- To create preconfigured areas for key:value pairs like base URL and tokens.
- To visualize API responses in a graphical format.
- To organize requests into groups for better management.
- To store API documentation and descriptions.
Explanation
Explanation
In Postman, the 'Environments' feature allows users to create preconfigured sets of key:value pairs, such as base URLs, authentication tokens, or variable parameters. This enables developers to switch easily between different setups, such as development, staging, and production, without modifying each request manually. By using environment variables, Postman enhances flexibility, reduces errors, and streamlines testing across multiple environments.
Correct Answer:
To create preconfigured areas for key:value pairs like base URL and tokens.
In Postman, the 'Environments' feature allows users to create preconfigured sets of key:value pairs, such as base URLs, authentication tokens, or variable parameters. This enables developers to switch easily between different setups, such as development, staging, and production, without modifying each request manually. By using environment variables, Postman enhances flexibility, reduces errors, and streamlines testing across multiple environments.
Correct Answer:
To create preconfigured areas for key:value pairs like base URL and tokens.
8.
What does AXL stand for in the context of Cisco CUCM APIs?
- Advanced XML
- Administrative XML
- Automated XML
- Application XML
Explanation
Explanation
In the context of Cisco Unified Communications Manager (CUCM), AXL stands for Administrative XML Layer. It is an API interface that allows external applications to manage and configure CUCM programmatically. Through AXL, administrators and developers can automate tasks such as adding or modifying users, devices, and route patterns without relying on manual configuration through the CUCM GUI. This API is essential for system integration, automation, and scalability in large communication environments.
Correct Answer:
Administrative XML
In the context of Cisco Unified Communications Manager (CUCM), AXL stands for Administrative XML Layer. It is an API interface that allows external applications to manage and configure CUCM programmatically. Through AXL, administrators and developers can automate tasks such as adding or modifying users, devices, and route patterns without relying on manual configuration through the CUCM GUI. This API is essential for system integration, automation, and scalability in large communication environments.
Correct Answer:
Administrative XML
9.
Describe the key difference between declarative and imperative approaches in Infrastructure as Code.
- The declarative approach is more manual than the imperative approach.
- The declarative approach specifies the desired end state, while the imperative approach outlines the steps to achieve that state.
- The imperative approach is used for cloud services, while the declarative approach is used for networking.
- The imperative approach focuses on the end state, while the declarative approach focuses on the steps.
Explanation
Explanation
In Infrastructure as Code (IaC), the declarative approach defines what the final system configuration should look like without specifying how to achieve it. Tools like Terraform and CloudFormation use this model to automatically determine the necessary actions to reach the desired state. The imperative approach, on the other hand, provides explicit commands that describe how to configure infrastructure step by step. Thus, the key difference lies in focusing on the end goal (declarative) versus the process (imperative).
Correct Answer:
The declarative approach specifies the desired end state, while the imperative approach outlines the steps to achieve that state.
In Infrastructure as Code (IaC), the declarative approach defines what the final system configuration should look like without specifying how to achieve it. Tools like Terraform and CloudFormation use this model to automatically determine the necessary actions to reach the desired state. The imperative approach, on the other hand, provides explicit commands that describe how to configure infrastructure step by step. Thus, the key difference lies in focusing on the end goal (declarative) versus the process (imperative).
Correct Answer:
The declarative approach specifies the desired end state, while the imperative approach outlines the steps to achieve that state.
10.
Describe the significance of using JSON as the data format in Cisco Modeling Labs for lab file management.
- JSON is used because it is the only format supported by Cisco devices.
- JSON is primarily used for network security configurations.
- JSON is less efficient than XML for lab file management.
- JSON is significant in Cisco Modeling Labs as it allows for structured data representation, making it easier to import and export lab configurations.
Explanation
Explanation
In Cisco Modeling Labs (CML), JSON plays a crucial role in managing lab files because it offers a structured and human-readable format for representing configuration data. JSON simplifies the import and export of lab topologies, device settings, and network connections, allowing users to automate lab setup and share configurations efficiently. Its lightweight and standardized structure also makes it compatible with various APIs and automation tools used in network simulation and testing.
Correct Answer:
JSON is significant in Cisco Modeling Labs as it allows for structured data representation, making it easier to import and export lab configurations.
In Cisco Modeling Labs (CML), JSON plays a crucial role in managing lab files because it offers a structured and human-readable format for representing configuration data. JSON simplifies the import and export of lab topologies, device settings, and network connections, allowing users to automate lab setup and share configurations efficiently. Its lightweight and standardized structure also makes it compatible with various APIs and automation tools used in network simulation and testing.
Correct Answer:
JSON is significant in Cisco Modeling Labs as it allows for structured data representation, making it easier to import and export lab configurations.
How to Order
1
Select Your Exam
Click on your desired exam to open its dedicated page with resources like practice questions, flashcards, and study guides.Choose what to focus on, Your selected exam is saved for quick access Once you log in.
2
Subscribe
Hit the Subscribe button on the platform. With your subscription, you will enjoy unlimited access to all practice questions and resources for a full 1-month period. After the month has elapsed, you can choose to resubscribe to continue benefiting from our comprehensive exam preparation tools and resources.
3
Pay and unlock the practice Questions
Once your payment is processed, you’ll immediately unlock access to all practice questions tailored to your selected exam for 1 month .