Module #3 Flashcards
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
to output a list of installed Python packages
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 Microsoft proprietary.
- It is Cisco proprietary.
- It is open source.
It is a distributed VCS.
It is open source
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.
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?
- build integrity in
- eliminate waste
- deliver as fast as possible
- amplify learning
eliminate waste
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 ()
curly braces {}
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.
- 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?
- 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.
Each step in the process must be completed before the next step starts
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
code that is easy to read and understand
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.
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 declared during the execution of a Python program
- when the function is initiated during the execution of a Python program
- when the function is packaged in a single Python file
- when the function is used for the first time
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.hostWhich command should the student use to create an object with one attribute being a valid URL?
> > > url2 = Url(URL, ‘http://’, ‘www.cisco.com’)
url2 = Url(‘http’, ‘://’, ‘www.cisco.com’)
url2 = Url(‘www.cisco.com’, ‘http’)
url2 = Url(‘http’, ‘www.cisco.com’)
> > > url2 = Url(‘www.cisco.com’, ‘http’)
A developer issues a Linux command python3 -m venv devenv . What is the developer trying to achieve?
- to activate the Python 3 virtual environment named devenv
- to enter the Python 3 virtual environment named veny using the devnet tool sets
- to install the devnet tool sets in the Python 3 virtual environment named veny
- to create a Python 3 virtual environment named devenv
to create a Python 3 virtual environment named devenv
How does an application use a module in Python?
- by calling the module name
- through the include statement
- by using an assignment statement with a variable
- through the import statement
through the import statement
Which two programming components are defined as blocks of code that perform tasks when executed? (Choose two.)
functions
methods
parameters
objects
arguments
functions
methods
