Help
Options
Question
A developer issues the Linux command pip3 freeze in an activated Python 3 virtual environment. What is the function that is provided by the command?
click to flip
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Question
What are two characteristics of the Git version control system? (Choose two.)
Remaining cards (74)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
3-4 DevNet
| Question | Answer |
|---|---|
| A developer issues the Linux command pip3 freeze in an activated Python 3 virtual environment. What is the function that is provided by the command? | to output a list of installed Python packages |
| What are two characteristics of the Git version control system? (Choose two.) | It is a distributed VCS. It is open source |
| a simple statement of what a user needs and why | story |
| uses standup meetings to review progress | Scrum team |
| a time-boxed period where working software is developed | sprint |
| a prioritized list of all the features for the software being developed | backing |
| What characteristic describes a formal code review? | The entire code base is reviewed in a series of meetings. |
| Which fundamental Lean principle forms the basis from which all other Lean principles flow? | eliminate waste |
| When a unified diff file is being reviewed, which symbol is used to indicate that a line has been added? | + |
| What special characters are used to enclose JSON objects? | curly braces {} |
| What are two features of the formal code review? (Choose two.) | It promotes discussion among all of the reviewers. It involves a review of the entire code base in a series of meetings. |
| Which statement describes the Waterfall methodology of software development? | Each step in the process must be completed before the next step starts |
| What is clean code? | code that is easy to read and understand |
| Updates the local copy of the Git repository with the content of the remote Git repository | git pull |
| Creates an empty Git repository or makes an existing folder a Git repository | git init |
| Updates the remote Git repository with the content changes from the local Git repository | git push |
| What is the role of the view component in the Model-View-Controller (MVC) flow? | It accepts selected data and displays the visual representation to the user. |
| A developer is constructing some functions in Python. When is a function referred to as a module in Python? | when the function is packaged in a single Python file |
| A student is learning Python using the interactive interpreter mode. The student issues these commands: >>> class Uri(): ... def_init__(self, host, prot): ... self.host = host ... self.prot = prot ... self.url = self.prot + "://" + self.host >>> | >>> url2 = Url(‘www.cisco.com’, ‘http’) |
| A developer issues a Linux command python3 -m venv devenv . What is the developer trying to achieve? | to create a Python 3 virtual environment named devenv |
| When a unified .diff file is being reviewed, which symbol is used to indicate that a line has been added? | + |
| Which software development methodology prescribes that developers follow a strict process order by completing one step in the SDLC process before proceeding to the next step. | Waterfall |
| Which SDLC development methodology employs many quick iterations known as sprints? | Agile |
| Which two programming components are defined as blocks of code that perform tasks when executed? (Choose two.) | functions methods |
| A developer wants to find the location of the Python 3 executable file. Which command should the developer use? | which python3 |
| Which SDLC phase concludes with functional code that satisfies customer requirements and is ready to be tested? | implementation |
| What are the three states of a Git file? (Choose three.) | staged committed modified |
| Which term is used to describe the first line of an XML document? | prologue |
| How does an application use a module in Python? | through the import statement |
| What is the role of the controller component in the Model-View-Controller (MVC) flow? | It takes user input and manipulates it to the proper format for the model |
| Which code review method involves the developer going through the code line-by-line with the reviewer, allowing the developer to make changes on the spot? | over-the-shoulder |
| Refer to the exhibit. A network administrator is using a Python script to test a REST API request. The traceback message indicates that there is an error in the URI. What is a possible issue? | The destination host address is wrong. |
| READ | GET |
| CREATE | POST |
| DELETE | DELETE |
| UPDATE | PUT/PATCH |
| What is an architectural constraint to which a true RESTful API web service must adhere? | It operates in a stateless way. |
| Refer to the exhibit. A network administrator is using a Python script to send a REST API request. What is the purpose of the line of code resp = requests.get(url, verify = False) ? | It bypasses the certificate validation check. |
| A client is sending a REST API request to a web server. The request includes the need for data compression. Which three values are acceptable for the Accept-Encoding request header? (Choose three.) | * br gzip |
| What is the meaning of the term flow as it relates to the OAuth 2.0 authorization framework? | It is a process for an API user to obtain an access token from the authorization server. |
| What is a characteristic of a RESTful API? | It uses HTTP methods to gather and manipulate data. |
| Which characteristic of the SOAP architecture specifies communication between all similar and dissimilar application types? | independence |
| In the REST API request URI example , which term describes the component example.com ? | authority |
| Which SOAP message root element defines the XML document as a SOAP message? | Envelope |
| Which type of credential information is used for the bearer authentication in REST APIs? | a string generated by an authentication server |
| What are two purposes for using rate limits on public and unrestricted APIs? (Choose two.) | - to avoid a server overloading from too many requests at the same time - to provide better service and response time to all users |
| Which HTTP response status code indicates that the user is not authenticated to access the site? | 401 |
| OK (using GET or POST to exchange data with an API successfully) | 200 |
| Created (creating resources by using a REST API call successfully) | 201 |
| Bad Request (The request from the client is failed due to client-side issue.) | 400 |
| Unauthorized (The client is not authenticated to access site or API call.) | 401 |
| Forbidden (The access request is not granted based on the supplied credentials.) | 403 |
| Not Found (The page requested at HTTP URL location does not exist or is hidden.) | 404 |
| Which API architectural style uses an XML-based messaging protocol to communicate between applications? | SOAP |
| Simple Object Access Protocol (SOAP) | is a messaging protocol used when applications need to communicate. It is an XML-based protocol that was developed by Microsoft. |
| A network engineer is learning about Rest APIs. When executing a particular API, the server responds with curl. How is this information useful? | Curl shows how to access the content displayed in the response body using curl. |
| is a tool used on many platforms for getting or sending files using URL syntax. | Clients for URLs (curl or cURL) |
| In which situation would a synchronous API be used? | when data is being retrieved from a database |
| What is REST? | It is an architecture style for designing web service applications. |
| Which HTTP response status code indicates that the request to update the database is completed? | 201 |
| REST | is not a protocol or service, but rather a style of software architecture for designing web service applications. |
| How many elements does a SOAP message contain? | 4 |
| SOAP message | is an XML document that can contain four elements, namely, Envelope, Header, Body, and Fault. |
| Refer to the exhibit. A network administrator is using a Python script to test a REST API request. The traceback message indicates there is an error in the URI. What is the error? | The protocol is missing. |
| Which type of encoding is used in basic authentication for REST APIs? | Base64 |
| What is an architectural constraint to which a true RESTful API web service must adhere? | It runs as client/server model. |
| Client/server | The client handles the front end and the server handles the back end. |
| Stateless | No client data is stored on the server between requests. The session state is stored on the client. |
| Cacheable | Clients can cache responses locally to improve performance. |
| What is a reason that a network engineer would use APIs? | to automate configuration or data collection tasks |
| What is a webhook for REST APIs? | It is an HTTP callback to a URL to notify the client application that an event has occurred. |
| As part of creating an API request using Python, the following commands are entered. What is the purpose of this step? ipaddr = 10.1.50.1 interface = Ethernet1/1 hostname = R1 | to create variables |
| A web service uses a rate limit algorithm that puts all incoming REST API requests into a queue in the order in which they arrive. Which rate limit algorithm is used by the web service? | leaky bucket |
| What is an application requirement in order to receive a notification from a webhook provider? | The application must always be running to receive HTTP POST requests. |
| Which RESTful operation corresponds to the HTTP GET method? | read |
Created by:
user-1878549