Midterms DevNet

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

• • to lock the current virtual environment

• • to prepare the environment before installing a Python package

• • to deactivate the current virtual environment

What are two characteristics of the Git version control system? (Choose two.)

• • It is a local vcs.

• • It is a centralized VCS.

• • It is a distributed VCS.

• • It is open source

• • It is Microsoft proprietary.

What characteristic describes a formal code review?

• • Code is automatically sent for review by source code management systems once it is checked in.

• • The entire code base is reviewed in a series of meetings.

• • It utilizes a peer code review tool to identify code that needs retesting.

• • It provides direct interaction between the review team and the code author.

Which fundamental Lean principle forms the basis from which all other Lean principles flow?

• • build integrity in

• • eliminate waste

• • deliver as fast as possible

• • amplify learning

When a unified diff file is being reviewed, which symbol is used to indicate that a line has been added?

• • /dev/null

• ;

• +

• @@

What special characters are used to enclose JSON objects?

• • forward slash /

• • square brackets []

• • curly braces {}

• • parenthesis ()

What are two features of the formal code review? (Choose two.)

• • For a quicker turnaround, it involves only one reviewer

• • It involves the developer going through code with the reviewer line-by-line.

• • It promotes discussion among all of the reviewers.

• • It allows the developer to make changes on the spot.

• • It involves a review of the entire code base in a series of meetings.

Which statement describes the Waterfall methodology of software development?

• • Process tasks are broken up into time-boxed iterations called sprints.

• • Each step in the process must be completed before the next step starts

• • It emphasizes elimination of wasted effort and maximizes customer value.

• • Multiple steps in the process are started simultaneously.

What is clean code?

• • code that has no reviewer comments

• • code that has passed functional testing

• • code that is easy to read and understand

• • code that performs a discrete task

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.

• • It accepts the input and applies the required rules to format the data.

• it requests user input and manipulates it to fit the format for the model.

• • It manages the data, logic and rules of the application.