DEVASC Set 01

DRAG DROP - Refer to the exhibits. base_url = https://api .meraki . com/api/vO org_id = 123456789 api_key = 1098hadpfsiapsf8ahf8ohp network- name= "New Network" requests .<item 1> ( <item 2> + " /<item 3>/" + org_id + " /<item 4>", headers= { "X-Cisco-Meraki-API-Key" : "<item 5>", "Content-Type" : "<item 6>" } , <item 7>=json.dumps ({ "name" : <item 8>, "type" : " wireless switch" } ) ) base_url network_name data post application/json networks api_key organizations Drag and drop the code from the left onto the item numbers on the right to complete the Meraki Python script shown in the exhibit.Select and Place:

item 1 = post item 2 = base_url item 3 = organizations item 4 = networks item 5 = api_key item 6 = application/json item 7 = data item 8 = network_name

Refer to the exhibit. The output of a unified diff when comparing two versions of a Python script is shown. Which two `single_request_timeout()` functions are defined in fish.py and cat.py? (Choose two.)

B C

Refer to the exhibit. Which XML snippet has interface information that conforms to the YANG model? module ietf-interface { namespace "urn:ietf:params:xml:ns:yang:ietf-interfaces"; prefix if; import ietf-yang-types { prefix yang; } container interfaces-state { list interface { key "name"; leaf name { type string; } leaf admin-status { type enumeration { enum up { value 1; } enum down { value 2; } enum testing { value 3; } } } leaf if-index { type int32 { range "1..2147483647"; } } container statistics { leaf in-octets { type yang:counter64; } leaf in-unicast-pkts { type yang:counter64; } } } } }

A. <interfaces-state xmlns="urn:ietf:params:xml:ns:yang:ietf-interfaces" xmlns:if="urn:ietf:params:xml:ns:yang:ietf-interfaces"> <interface name="GigabitEthernet1"> <admin-status>1</admin-status> <if-index>1</if-index> <statistics> <in-octets>408164820</in-octets> <in-unicast-pkts>728061</in-unicast-pkts> </statistics> </interface> </interfaces-state>

Which status code is used by a REST API to indicate that the submitted payload is incorrect? A. 400 B. 403 C. 405 D. 429

A. 400 The status code 400, known as "Bad Request," is used by a REST API to indicate that the server cannot process the request due to a client error, such as an incorrectly formatted request body (payload).

Which action does the Git command git merge allow the developer to perform? A. Combine multiple sequences of commits into one unified history B. Push changes to the remote repository C. Create, list, rename, and delete branches D. Switch between branches

A. Combine multiple sequences of commits into one unified history The action that the Git command git merge allows the developer to perform is: A. Combine multiple sequences of commits into one unified history The git merge command is used to integrate changes from one branch into another branch. It takes the contents of a source branch and integrates it with a target branch. In a typical workflow, a developer would merge a feature branch into the main branch after the feature is completed to include the new changes into the main codebase.

Which two statements describe the advantages of using a version control system? (Choose two.) A. It allows for branching and merging so that different tasks are worked on in isolation before they are merged into a feature or master branch. B. It provides tooling to automate application builds and infrastructure provisioning. C. It allows multiple engineers to work against the same code and configuration files and manage differences and conflicts. D. It provides a system to track User Stories and allocate to backlogs. E. It allows developers to write effective unit tests.

A. It allows for branching and merging so that different tasks are worked on in isolation before they are merged into a feature or master branch. C. It allows multiple engineers to work against the same code and configuration files and manage differences and conflicts. The advantages of using a version control system include: A. It allows for branching and merging so that different tasks are worked on in isolation before they are merged into a feature or master branch. - Version control systems provide powerful tools for branching and merging, enabling parallel development. Teams can work on different features, fixes, or experiments in separate branches without affecting the main codebase, and later merge these changes back, streamlining the development process. C. It allows multiple engineers to work against the same code and configuration files and manage differences and conflicts. - Version control systems are essential for collaborative development projects. They manage the contributions of multiple developers by keeping track of changes, preventing conflicts when merging code, and facilitating the resolution of conflicts when they occur. This ensures that changes can be made simultaneously by different team members without overwriting each other's work.

When a Cisco IOS XE networking device is configured using RESTCONF, what is the default data-encoding method? A. JSON B. YAML C. XML D. x-form-encoding

A. JSON The default data-encoding method for RESTCONF on a Cisco IOS XE networking device is: A. JSON JSON (JavaScript Object Notation) is the default encoding for RESTCONF, although RESTCONF also supports XML. JSON is widely used due to its ease of use and readability.

Which two encoding formats do YANG interfaces support? (Choose two.) A. XML B. JSON C. XHTML D. BER E. plain text

A. XML B. JSON YANG is a data modeling language used to model configuration and state data manipulated by the Network Configuration Protocol (NETCONF), RESTCONF, or other protocols. The data defined by a YANG model can be encoded in XML or JSON when it is sent over the network by these protocols. While YANG models themselves are typically written in a human-readable plain text format, the actual data that conforms to the YANG models is commonly encoded in XML or JSON for transmission. XHTML (C) is a markup language used for web pages and is not directly related to YANG. BER (D), which stands for Basic Encoding Rules, is a method for encoding ASN.1 data structures, not YANG. Plain text (E) is used for writing the YANG models but not typically for the encoded transmission of data modeled by YANG.

What is the outcome of executing this command? git clone ssh:/[email protected]/path/to/my-project.git A. creates a local copy of a repository called 'my-project' B. initiates a new Git repository called 'my-project' C. creates a copy of a branch called 'my-project' D. creates a new branch called 'my-project'

A. creates a local copy of a repository called 'my-project' The outcome of executing the command: git clone ssh:/[email protected]/path/to/my-project.git is: A. creates a local copy of a repository called 'my-project' This command will clone the remote repository located at the given SSH path into a new local directory called 'my-project' by default, unless a different local directory name is specified. It initializes a local repository and pulls all the data from the remote repository into the new local directory.

What is an advantage of a version control system? A. facilitates resolving conflicts when merging code B. ensures that unit tests are written C. prevents over-writing code or configuration files D. forces the practice of trunk-based development

A. facilitates resolving conflicts when merging code An advantage of a version control system is: A. facilitates resolving conflicts when merging code Version control systems are designed to track changes to code over time, allowing multiple developers to work on the same project without interfering with each other's work. When changes from different sources need to be combined, version control systems provide tools and mechanisms to identify conflicts and facilitate their resolution, ensuring that merging code is manageable and controlled. This capability is critical in collaborative development environments where concurrent modifications to code are common.

How does a developer create and switch to a new branch called `my-bug-fix` to develop a product fix? A. git checkout -b my-bug-fix B. git branch -b my-bug-fix C. git branch my-bug-fix D. git checkout my-bug-fix

A. git checkout -b my-bug-fix To create and switch to a new branch called my-bug-fix, the developer should use the command: A. git checkout -b my-bug-fix This command does two things: it creates a new branch named my-bug-fix and then switches to that branch immediately.

An application calls a REST API and expects a result set of more than 550 records, but each time the call is made, only 25 are returned. Which feature limits the amount of data that is returned by the API? A. pagination B. payload limit C. service timeouts D. rate limiting

A. pagination Pagination is a feature used by APIs to limit the number of records returned in a single response. It helps to manage and optimize the performance of both the server and client by breaking the data into smaller, more manageable chunks. The client application can then retrieve additional records by making subsequent requests as needed.

Which advantage does the agile process offer compared to waterfall software development? A. to add or update features with incremental delivery B. to view the full scope of end-to-end work C. to have each phase end before the next begins D. to fix any issues at the end of the development cycle

A. to add or update features with incremental delivery The agile process is characterized by iterative and incremental delivery, where features are delivered in small, workable increments. This allows for more flexibility in adding or updating features based on feedback or changing requirements throughout the development process, as opposed to the waterfall model, which typically has a more rigid and linear approach.

Several teams at a company are developing a new CRM solution to track customer interactions with a goal of improving customer satisfaction and driving higher revenue. The proposed solution contains these components:* MySQL database that stores data about customers* HTML5 and JavaScript UI that runs on Apache* REST API written in PythonWhat are two advantages of applying the MVC design pattern to the development of the solution? (Choose two.) A. to enable multiple views of the same data to be presented to different groups of users B. to provide separation between the view and the model by ensuring that all logic is separated out into the controller C. to ensure data consistency, which requires that changes to the view are also made to the model D. to ensure that only one instance of the data model can be created E. to provide only a single view of the data to ensure consistency

A. to enable multiple views of the same data to be presented to different groups of users B. to provide separation between the view and the model by ensuring that all logic is separated out into the controller A. to enable multiple views of the same data to be presented to different groups of users MVC, or Model-View-Controller, is a design pattern that separates the application into three interconnected components. This separation allows the same data model to be presented in different ways by different views, which can be tailored to specific user groups or different types of user interfaces. B. to provide separation between the view and the model by ensuring that all logic is separated out into the controller The MVC pattern is designed to separate concerns within the application: the model handles the data and business logic, the view displays the data, and the controller manages the communication between the model and the view. By ensuring that the logic is in the controller, it separates the view from the model, which means that changes to the view logic don't directly affect the data handling, and vice versa.

What is a benefit of using functions in the code for the development process? A. better user experience in the end product B. improves code performance C. easier to compile the code D. faster code development

D. faster code development Using functions in the code typically leads to faster code development because functions allow developers to reuse code, maintain organization, and work more efficiently. Functions enable modularity, so a developer can write a function once and use it in many places, reducing duplication and making the codebase easier to understand and maintain.

Refer to the exhibit. <books> <science> <biology>l0.00</biology> <geology>9.00</geology> </science> <math> <calculus>20.00</calculus> </math> </books> Which JSON is equivalent to the XML-encoded data? A. [ { "books": { "science": { "biology": "10.00", "geology": "9.00", }, "math": { "calculus": "20.00" } } } ] B. { "books": { "science": { "biology": "10.00", "geology": "9. 00", } ', "math": { "calculus": "20.00", } } } C. { "books": [ "science": { "biology": "10.00", "geology": "9. 00", } ', "math": { "calculus": "20.00", } ] } D. { "books": [ "science", { "biology": "10.00", "geology": "9. 00", } ', "math", { "calculus": "20.00", } ] }

B. { "books": { "science": { "biology": "10.00", "geology": "9. 00", } ', "math": { "calculus": "20.00", } } }

What is a functionality of the Waterfall method as compared to the Agile method for software development? A. Waterfall increases agility to implement faster while Agile promotes reliability. B. A phase begins after the previous phase has ended in Waterfall while Agile phases run in parallel. C. Customers get feedback during the process in Waterfall while they can see the result at the end in Agile. D. Requirements can be updated in Waterfall while in Agile it should be gathered in the beginning.

B. A phase begins after the previous phase has ended in Waterfall while Agile phases run in parallel. he Waterfall method is a linear and sequential approach to software development. In this method, each phase such as requirements gathering, design, implementation, testing, deployment, and maintenance must be completed before the next phase begins. Agile, in contrast, is iterative and incremental, with various activities such as planning, designing, building, and testing often overlapping or being revisited through the development cycle.

What are two advantages of version control software? (Choose two.) A. It supports tracking and comparison of changes in binary format files. B. It allows new team members to access the current code and history. C. It supports comparisons between revisions of source code files. D. It provides wiki collaboration software for documentation. E. It allows old versions of packaged applications to be hosted on the Internet.

B. It allows new team members to access the current code and history. C. It supports comparisons between revisions of source code files. Two advantages of version control software are: B. It allows new team members to access the current code and history. - Version control systems store the complete history of the project's files and changes over time. This enables new team members to access not only the current state of the code but also its entire development history, making it easier for them to understand the project's evolution and rationale behind certain decisions. C. It supports comparisons between revisions of source code files. - One of the key features of version control software is its ability to compare different versions of files. This facilitates identifying changes, understanding modifications made between different versions, and helps in reviewing code to ensure quality and consistency.

Which two concepts describe test-driven development? (Choose two.) A. User acceptance testers develop the test requirements. B. It enables code refactoring. C. Tests are created when code is ready for release. D. Implementation is driven by incremental testing of release candidates. E. Write a test before writing code.

B. It enables code refactoring. E. Write a test before writing code. Test-driven development (TDD) is a software development process where tests are written before writing the bare minimum of code needed to pass those tests. The primary goal is to write cleaner, bug-free code. Based on the options provided, the two concepts that describe test-driven development are: B. It enables code refactoring. - TDD encourages simple designs and inspires confidence to refactor the code. Since the tests are written first, any changes in the code can be immediately checked against the predefined tests to ensure functionality remains intact. E. Write a test before writing code. - This is the core principle of TDD. Developers write a failing test first that defines a desired improvement or new function, then produce the minimum amount of code to pass that test, and finally refactor the new code to acceptable standards.

What is a comparison of YAML and JSON? A. YAML has a more consistent approach to representing data compared to JSON. B. JSON does not support comments and YAML does. C. YAML is a more verbose data structure compared to JSON. D. JSON has more common usage in configuration management tools compared to YAML.

B. JSON does not support comments and YAML does. This statement is true and represents one of the key differences between YAML and JSON. YAML is designed to be human-friendly and supports comments, which are often used to explain parts of the configuration or to comment out sections of code. JSON, being a data interchange format, does not support comments, as they could potentially interfere with the data transmission and parsing processes.

What is the first development task in test-driven development? A. Write code that implements a desired function. B. Write a failing test case for a desired function. C. Reverse engineer the code for a desired function. D. Write a passing test case for existing code.

B. Write a failing test case for a desired function. The first development task in test-driven development (TDD) is: B. Write a failing test case for a desired function. In TDD, the process begins with writing a test that defines a function or improvements of a function, which will initially fail because the function or improvement does not yet exist. This is followed by writing the minimal amount of code necessary to pass the test and then refactoring the new code to meet the standards of quality and design.

What is the difference between YAML and JSON data structure? A. YAML uses spaces; JSON uses parentheses B. YAML uses indentation; JSON uses brackets and braces C. YAML uses brackets and braces; JSON uses indentation D. YAML uses parentheses; JSON uses spaces

B. YAML uses indentation; JSON uses brackets and braces YAML relies on indentation to denote structure, which can make it more readable for humans. It doesn't use brackets or braces to denote arrays or objects; rather, it uses hyphens and indentation levels. JSON, on the other hand, uses brackets [] to denote arrays and braces {} to denote objects. It is less readable for humans but is easily parsed by machines and is often used for data interchange between services.

A developer needs to prepare the file README.md in the working tree for the next commit operation using Git. Which command needs to be used to accomplish this? A. git -a README.md B. git add README.md C. git add README.md staging D. git commit README.md

B. git add README.md To prepare the file README.md in the working tree for the next commit operation using Git, the developer needs to use the command: B. git add README.md This command stages the changes in README.md for the next commit, making it ready to be included in the commit operation.

A developer is working on a feature for a new application. The changes in the existing branch named 'feat00304' must be integrated into a single commit with the current working primary branch named 'prodapp411926287'. Which git command must be used? A. git rebase --merge feat00304 B. git merge --squash feat00304 C. git push --rebase feat00304 D. git checkout --squash feat00304

B. git merge --squash feat00304 The git merge --squash command is used when you want to merge changes from one branch (in this case, 'feat00304') into your current branch (which would be 'prodapp411926287' after checking it out) and squash all those changes into a single commit. This keeps the history of the 'prodapp411926287' branch clean by combining all the feature branch commits into one commit.

What is a benefit of version control? A. prevents two users from working on the same file B. keeps track of all changes to the files C. prevents the sharing of files D. keeps the list of data types used in the files

B. keeps track of all changes to the files Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. It allows multiple users to edit and work on the same files while keeping a history of who made which changes and when. This feature is crucial for understanding how a project has evolved over time and for undoing changes if necessary.

Before which process is code review performed when version control is used? A. checkout of code B. merge of code C. committing code D. branching code

B. merge of code Code review is typically performed before: B. merge of code In most version control workflows, especially those that use pull requests (or merge requests), code review is a step that occurs after the code has been committed to a feature branch but before it is merged into the main branch. This process ensures that the code meets the project's quality standards and adheres to its guidelines before it becomes a part of the main codebase.

What are two principles of an infrastructure as code environment? (Choose two.) A. Components are coupled, and definitions must be deployed for the environment to function. B. Redeployments cause varying environment definitions. C. Environments must be provisioned consistently using the same inputs. D. Service overlap is encouraged to cater for unique environment needs. E. Complete complex systems must be able to be built from reusable infrastructure definitions.

C. Environments must be provisioned consistently using the same inputs. E. Complete complex systems must be able to be built from reusable infrastructure definitions. Infrastructure as Code (IaC) emphasizes the consistent provisioning of environments by using the same definitions or "code." This means that every time the code is executed, it should produce an identical environment, ensuring predictability and reliability.

Which statement describes the benefit of using functions in programming? A. Functions ensure that a developer understands the inner logic contained before using them as part of a script or application. B. Functions create the implementation of secret and encrypted algorithms. C. Functions allow problems to be split into simpler, smaller groups, and reduce code repetition, which makes the code easier to read. D. Functions store mutable values within a script or application.

C. Functions allow problems to be split into simpler, smaller groups, and reduce code repetition, which makes the code easier to read. The statement that describes the benefit of using functions in programming is: C. Functions allow problems to be split into simpler, smaller groups, and reduce code repetition, which makes the code easier to read. Functions are fundamental in programming because they allow developers to encapsulate code into reusable blocks. This modular approach simplifies complex problems by dividing them into more manageable parts and enables code reuse, reducing redundancy and potential errors. Moreover, it enhances readability and maintainability of the code.

git clone git : //git . kernel . org/ ... /git . git my. git cd my .git git branch -d -r origin/todo origin/html origin/man (1) git branch -D test A. It duplicates the 'test' branch. B. It deletes the 'test' branch only if a new branch is created. C. It deletes the 'test' branch. D. It does not delete the branch until it is merged.

C. It deletes the 'test' branch. The command marked (2), git branch -D test, is quite decisive in its action—it deletes the test branch without asking for confirmation or checking whether the changes in the branch have been merged into another branch. It's a bit like clearing out a no longer needed room in your house; regardless of whether there are still belongings in there (unmerged changes), the room (branch) will be removed, and with it, everything inside (the changes in the branch). So, to answer your question, the command corresponds to: C. It deletes the test branch. It's important to use this command with caution, as it does not have the safety checks that normally prevent you from losing potentially important changes. It's like using scissors with no safety cap—effective, but you need to be sure you won't cut something valuable.

Which two statements about JSON and XML are true? (Choose two.) A. The syntax of JSON contains tags, elements, and attributes. B. XML objects are collections of key-value pairs. C. JSON objects are collections of key-value pairs. D. JSON arrays are an unordered set of key-value pairs. E. The syntax of XML contains tags, elements, and attributes.

C. JSON objects are collections of key-value pairs. E. The syntax of XML contains tags, elements, and attributes. The two true statements about JSON and XML are: C. JSON objects are collections of key-value pairs. JSON is built on two structures: A collection of name/value pairs (in various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array) and an ordered list of values (which is realized as an array, vector, list, or sequence). E. The syntax of XML contains tags, elements, and attributes. XML, or Extensible Markup Language, is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. It uses tags to define elements and attributes to provide additional information about elements.

A developer is reviewing a code that was written by a colleague. It runs fine, but there are many lines of code to do a seemingly simple task repeatedly. Which action organizes the code? A. Refactor the code by removing any unnecessary tests. B. Reverse engineer and rewrite the code logic. C. Using functions, rewrite any pieces of code that are repeated. D. Modify the code to use loops.

C. Using functions, rewrite any pieces of code that are repeated. C. Using functions, rewrite any pieces of code that are repeated. This action is the most straightforward way to organize code that contains repeated tasks. Functions allow for the encapsulation of code that performs a specific task into a single, reusable block. This not only makes the code more readable and maintainable but also makes it easier to test and debug.

In the test-driven development model, what is changed after a test fails? A. schedule B. project requirements C. code D. test

C. code In the test-driven development (TDD) model, what is changed after a test fails is: C. code In TDD, after writing a failing test case that specifies a new feature or improvement, the next step is to write or modify the code so that the test will pass. This cycle of test-first development ensures that all new features or improvements are driven by tests, resulting in software that is thoroughly tested and often more modular and flexible.

Refer to the exhibit. The JSON data in the exhibit has been parsed and stored into a variable `data`. What returns the value `172.16.0.11`? A. data['items']['host']['value'] B. data['items'][1]['host']['value'] C. data['items'][0]['host']['value'] D. data['items']['host'][1]

C. data['items'][0]['host']['value']

Into which type of Python data structure should common data formats be parsed? A. sequence B. set C. dictionary D. list

C. dictionary Common data formats, such as JSON and XML, typically represent key-value pairs or structured data with named fields, which naturally map to a Python dictionary. A dictionary in Python is a collection of key-value pairs where each key is unique. This structure allows for easy access to values based on their keys, closely resembling the structure of common data formats.

What is a benefit of organizing code into modules? A. reduces the length of code B. enables code to be multifunctional C. enables the reuse of code D. improves overall performance

C. enables the reuse of code A benefit of organizing code into modules is: C. enables the reuse of code Modular programming is a software design technique that emphasizes separating the functionality of a program into independent, interchangeable modules, such that each contains everything necessary to execute only one aspect of the desired functionality. A module encapsulates data and functions together, allowing for easy reuse in different parts of the application, as well as in different projects. By reusing modules, developers can save time, reduce errors, and improve code maintainability.

A file that already exists in a local repository is updated. Which command must be executed to ensure that the changes in the file are included in the next Git commit? A. git update B. git merge C. git add D. git rebase

C. git add When you update a file that already exists in a local Git repository, you need to stage the changes for them to be included in the next commit. The git add command is used to stage changes. After using git add on the updated file, you would then use git commit to commit those staged changes to the repository.

What is a benefit of organizing code into modules? A. enables the code to be broken down into layers B. improves collaboration of the development team C. makes it easier to deal with large and complex systems D. enables the inclusion of more programming languages in the code

C. makes it easier to deal with large and complex systems A benefit of organizing code into modules is: C. makes it easier to deal with large and complex systems Modular programming allows developers to break down large systems into smaller, manageable, and logical chunks. Each module can be developed and tested independently, which simplifies understanding, developing, and maintaining the code. It also helps in isolating faults or bugs to individual modules, making it easier to address issues in complex systems.

What is the Git command to delete a local branch named `experiment` without a warning? A. git branch -rm experiment B. git branch -n experiment C. git branch -f experiment D. git branch -D experiment

D. git branch -D experiment The Git command to delete a local branch named experiment without a warning is: D. git branch -D experiment The -D option is a shortcut for --delete --force, which deletes the branch regardless of its merge status, and without a warning.

Which task is performed because the test-driven development approach is being used? A. creating test scenarios based on continuous development B. writing code without committing any coding violations C. refactoring code that is covered by existing tests D. testing existing software before developing new code

C. refactoring code that is covered by existing tests The task performed because the test-driven development (TDD) approach is being used is: C. refactoring code that is covered by existing tests. TDD involves writing tests before writing the actual code. Once the code passes the tests, it can be refactored to improve its structure, efficiency, or readability with the confidence that the changes made do not break the functionality, as the existing tests will help ensure the code still behaves as expected. This continuous cycle of testing and refactoring is a key aspect of TDD, aiming to improve the quality and maintainability of the code.

In test-driven development, what are two of the green bar patterns? (Choose two.) A. another test B. break C. triangulate D. starter test E. fake it

C. triangulate E. fake it In test-driven development (TDD), the "green bar" pattern refers to the practice of getting to a point where the test suite passes all tests, indicated by a green bar in many development environments. Two of the green bar patterns are: C. Triangulate - This approach involves adding a test case that can't be passed by the current implementation, thereby forcing the code to evolve and generalize to pass all tests. It helps in guiding the development of more complex logic in a controlled manner. E. Fake it - "Fake it 'til you make it" involves implementing just enough code to pass a test, even if the implementation is not correct or complete. The idea is to quickly get to a passing test state, and then refactor the code to a proper implementation while keeping all tests passing. These strategies are part of the iterative development process in TDD, where the goal is to enhance the code incrementally while maintaining correctness as verified by the test suite.

Refer to the exhibit. def get_result() url = " https://sandboxdnac.cisco.com/dna/system/api/vl/auth/token" resp= requests.post(url, auth=HTTPBasicAuth(DNAC_USER, DNAC_PASSWORD)) result= resp.json()['Token' ] return result What does the Python function do? A. It returns HTTP Basic Authentication. B. It returns DNAC user and password. C. It reads a token from a local JSON file and posts the token to the DNAC URL. D. It returns an authorization token.

D. It returns an authorization token. The Python function in the exhibit is making a POST request to the specified URL to obtain an authorization token. It uses HTTP Basic Authentication with a username and a password (referred to as DNAC_USER and DNAC_PASSWORD) to authenticate the request. The response from this POST request is expected to be JSON, from which the function extracts the value associated with the key 'Token' and returns it. Therefore, the correct answer is: D. It returns an authorization token.

How do XML and JSON compare regarding functionality? A. XML provides more support for mapping data structures into host languages than JSON. B. XML provides more human readability than JSON. C. JSON provides less support for data types than XML. D. JSON natively supports arrays and XML does not natively support arrays.

D. JSON natively supports arrays and XML does not natively support arrays. JSON data format natively supports arrays, which are an ordered list of values. In XML, however, arrays are not a native data type and must be represented by a series of elements, typically enclosed within a parent element.

Package updates from a local server fail to download. However, the same updates work when a much slower external repository is used. Why are local updates failing? A. The server is running out of disk space. B. The Internet connection is too slow. C. The Internet is down at the moment, which causes the local server to not be able to respond. D. The update utility is trying to use a proxy to access the internal resource.

D. The update utility is trying to use a proxy to access the internal resource. Given these considerations, option D is a likely reason for the failure of local updates. It's a common misconfiguration error that would not affect the ability to download updates from an external repository.

Which principle is a value from the manifesto for Agile software development? A. processes and tools over teams and interactions B. detailed documentation over working software C. adhering to a plan over responding to requirements D. customer collaboration over contract negotiation

D. customer collaboration over contract negotiation This principle is directly from the Manifesto for Agile Software Development, which values "customer collaboration over contract negotiation." The Agile Manifesto prefers the flexibility to work with customers and adapt to their needs and feedback over sticking strictly to contract terms. The other options list values that are contrary to the Agile Manifesto. Agile development emphasizes individuals and interactions over processes and tools, working software over comprehensive documentation, and responding to change over following a plan.

Which Python data structure does my_json contain? A. map B. list C. json D. dict

D. dict The my_json variable contains a Python data structure of type: D. dict In Python, JSON objects are converted into dictionaries when loaded using json.loads(). The JSON object in the string is a set of key-value pairs, which corresponds to a dictionary (dict) in Python.

What is a benefit of test-driven development? A. strict adherence to product requirements B. faster releases that have minimal features C. early customer involvement D. increased code quality

D. increased code quality A benefit of test-driven development (TDD) is: D. increased code quality TDD promotes writing cleaner, more bug-free code by requiring tests to be written before the actual code. This not only helps in ensuring that the code meets its intended functionality but also aids in maintaining high code quality through constant refactoring with the safety net of tests. This approach tends to result in software that is more modular, more flexible, and easier to maintain, all of which contribute to overall increased code quality.

Refer to the exhibit. [ { "type": "fruit", "items": [ { "color": "green", "items": [ "kiwi", "grape" ] }, { "color": "red", "items": [ "strawberry", "apple" ] } ] }, { "type": "vegs", "items": [ { "color": "green", "items": [ "lettuce" ] }, { "color": "red", A REST API returns this JSON output for a GET HTTP request, which has been assigned to a variable called `vegetables`. Using Python, which output is the result of this command? print(filter(lambda 1: 1['type'] == 'fruit', vegetables) [0]['items'][0]['items'][0]) A. {'color': 'green', 'items': ['kiwi', 'grape']} B. ['kiwi', 'grape'] C. lettuce D. kiwi

D. kiwi

A developer is writing an application that uses a REST API and the application requires a valid response from the API. Which element of the response is used in the conditional check? A. body B. headers C. link D. URL E. status code

E. status code When writing an application that consumes a REST API, the status code in the response is typically used in a conditional check to determine if the API call was successful. Status codes are part of the HTTP response that indicate the result of the request; for example, 200-series codes indicate success, 400-series indicate client errors, and 500-series indicate server errors.

FILL BLANK - Fill in the blanks to complete the Python script to request a service ticket using the APIC-EM REST API for the user `devnetuser`. import requests import json controller = 'devnetapi.cisco.com/sandbox/apic_em' url = `https://` + controller + `api/va/ticket` payload = {'username': '_________________', 'password': '370940885'} header = {'Content-type': 'application.json'} response = _______________________.post(url, data=json.dumps(payload), \ headers= ______________________, verify=False) r_json = response.json() print(r_json) ticket = r_json[`response`][`serviceTicket`] print(ticket)

devnetuser requests header

DRAG DROP - Drag and drop the Git commands from the left onto the right that add modified local files to a remote repository. Not all options are used.Select and Place: Left Side: - git push - git add - git checkout -b "new branch" - git commit -m "this is my edit" - git pull Right Side: - step 1 - step 2 - step 3

git add > step 1 git commit -m "this is my edit" > step 2 git push > step 3