1. Fill in the blank: A business decides what kind of data
it needs, how the data will be managed, and who will be responsible for it
during the _____ stage of the data life cycle.
- manage
- analyze
- capture
- plan
Explanation: Making
plans! The phase of strategic planning is the phase in which a company begins
to create the foundation for its data journey.
2. The destroy stage of the data life cycle might involve
which of the following actions? Select all that apply.
- Uploading data to the cloud
- Shredding paper
files
- Storing data for future use
- Using data-erasure
software
3. During the capture stage of the data life cycle, a data
analyst may use spreadsheets to aggregate data.
- True
- False
Explanation: Unquestionably!
Spreadsheets are comparable to the data wranglers that are used during the
gather stage. By doing so, they assist in the collection and organization of
all of that raw data into something that is more manageable and important for
study.
4. Fill in the blank: The data life cycle has six stages,
whereas data analysis has six _____.
- key questions
- process steps
- data types
- data analytics tools
Explanation: The dimensions! When it
comes to the field of data analysis, these six dimensions are helpful in
navigating and comprehending the complexities of the data environment.
5. What actions might a data analytics team take in the Act
phase of the data analysis process? Select all that apply.
- Putting
a plan into action to help solve the business problem
- Sharing
analysis results using data visualizations
- Finalizing
a strategy based on the analysis
- Validating
insights provided by analysts
6. Fill in the blank: A formula is a set of instructions
used to perform a specified calculation; whereas a function is _____.
- a computer
programming language
- a particular
value
- a question
written by the user
- a
predefined operation
Explanation: Just like a pre-packaged
set of instructions, a function is just that! It is an operation that has been
specified and has the ability to receive input, carry out a certain activity,
and deliver an output. Calculations are like superheroes due to the fact that
functions are always ready to come to the rescue with only a simple call.
7. Fill in the blank: To request, retrieve, and update
information in a database, data analysts use a ____.
- dashboard
- query
- calculation
- formula
Explanation: Query on the System! It
is comparable to a magic spell that enables data analysts to conjure forth the
information they want from the vast regions of databases.
8. Fill in the blank: Structured query language (SQL)
enables data analysts to _____ the information in a database. Select all that
apply.
- Visualize
- Request
- Retrieve
- Update
9. The manage stage of the data life cycle is when a
business decides what kind of data it needs, how the data will be handled, and
who will be responsible for it.
- True
- False
Explanation: What a close call! When
it comes to the data life cycle, the "manage" stage is primarily
concerned with monitoring and regulating the data during its entire lifespan.
Discretionary choices must be made about storage, security, and access. At the
planning stage, on the other hand, the specifics of what data is required and
how it will be maintained are worked out. This is where the nitty-gritty
details are smoothed out. So, it's like planning is the one who sets the scene,
and management is the one that steals the show!
10. A data analyst uses a spreadsheet function to aggregate
data. Then, they add a pivot table to show totals from least to greatest. This
would happen during which stage of the data life cycle?
- Capture
- Manage
- Plan
- Analyze
Explanation: The "analyze"
step of the data life cycle seems like it would be a great time to celebrate!
Numbers are being crunched by the data analyst, functions are being used to
aggregate data, and a pivot table is even being thrown in for good measure. This
is similar to the stage when raw data is transformed into insights that have
significant significance.
11. The data life cycle deals with the stages that data
goes through; data analysis involves following a process to analyze data.
- True
- False
Explanation: Absolutely! The data
life cycle is the journey that data takes from the time it is created until it
is either destroyed or archived. It includes phases such as capturing,
managing, and analyzing the data, among other stages. On the other hand, data
analysis is the act of evaluating, cleansing, manipulating, and modeling data
in order to identify meaningful information, make conclusions, and provide
support for decision-making. When it comes to making sense of the digital
world, they are the equivalent of two sides of the same data coin, functioning
together.
12. A company takes insights provided by its data analytics
team, validates them, and finalizes a strategy. They then implement a plan to
solve the original business problem. This describes which step of the data
analysis process?
- Process
- Share
- Analyze
- Act
Explanation: What you are describing
seems like the "Act" part in the process of data analysis! It is the
culmination of everything, the point at which the discoveries are not only
accepted but also put into action. The process of transforming such data-driven
insights into observable enhancements for the company involves a number of
important processes, including validation, the completion of a strategy, and
the execution of a plan.
13. What is the main difference between a formula and a
function?
- A formula is
used to add or subtract; a function is used to multiply or divide.
- A formula
begins with an equal sign (=); a function begins with an asterisk (*).
- A formula can
be used multiple times in a spreadsheet; a function can only be used once.
- A
formula is a set of instructions used to perform a specified calculation;
a function is a preset command that automatically performs a specified
process.
Explanation: A collection of
instructions that you construct in order to carry out a calculation in a
spreadsheet or other software of a similar kind is known as a formula. It's the
same as telling an individual, "Do this particular math on these
cells."
On the other hand, a function is a kind of action or job
that has been established and that the program is already familiar with how to
carry out. You need just provide the function with the required inputs, and it
will take care of everything else. It's similar to having a tool that's
designed specifically for a certain task.
In a nutshell, a formula is something that you develop in a
step-by-step manner, but a function is an activity that is already built in and
ready to be used.
14. Structured query language (SQL) enables data analysts
to communicate with a database.
- True
- False
Explanation: Unquestionably! It is
possible for data analysts to communicate with databases by sending
instructions using SQL, which is similar to the language used by databases. As
the bridge that links analysts to the rich troves of information that are kept
in databases, it enables analysts to access, modify, and manage data in an
uncomplicated manner. Talk about being well-versed in data!
15. In the analyze stage of the data life cycle, what might
a data analyst do? Select all that apply.
- Choose the
format of spreadsheet headings
- Use
spreadsheets to aggregate data
- Use
a formula to perform calculations
- Create
a report from the data
16. Describe how the data life cycle differs from data
analysis
- The data life
cycle deals with identifying the best data to solve a problem; data
analysis is about asking effective questions.
- The data life
cycle deals with transforming and verifying data; data analysis is using
the insights gained from the data.
- The data life
cycle deals with making informed decisions; data analysis is using tools
to transform data.
- The
data life cycle deals with the stages that data goes through during its
useful life; data analysis is the process of analyzing data.
17. Fill in the blank: A function is a predefined
operation, whereas a formula is _____.
- a computer
programming language
- a predefined
statement
- a particular
value
- a
set of instructions used to perform a specified calculation
Explanation: A formula is comparable
to a set of instructions that are developed just for you! It is a computation
that is user-defined and will be created by merging a number of different
components. From this perspective, a formula may be thought of as a customized
recipe for your data computations, and a function can be thought of as a
ready-to-use meal.
18. Fill in the blank: A query is used to _____ information
from a database. Select all that apply.
- visualize
- update
- retrieve
- request
19. In which stage of the data life cycle does a business
decide what kind of data it needs, how the data will be managed, and who will
be responsible for it?
- Manage
- Analyze
- Plan
- Capture
Explanation: At this point in the
data life cycle, we are at the planning stage! On the other hand, it is
comparable to the phase of planning in which a company establishes the
foundation for its data journey. All of the decisions that need to be made on
what data is required, how it will be maintained, and who will be in charge of
the data are included in the planning stage.
20. A data analyst is working at a small tech startup.
They’ve just completed an analysis project, which involved private company
information about a new product launch. In order to keep the information safe,
the analyst uses secure data-erasure software for the digital files and a
shredder for the paper files. Which stage of the data life cycle does this
describe?
- Archive
- Manage
- Destroy
- Plan
Explanation: This seems to be the
stage of the data life cycle that is dealing with disposal! In a responsible
manner, the data analyst is removing data that is no longer required, making
certain that confidential firm information is safely removed from both digital and
physical files. It is similar to throwing a party for data, with the goal of
ensuring that it departs the stage in a secure manner and without leaving any
traces behind.
21. A company takes insights provided by its data analytics
team, validates them, and finalizes a strategy. They then implement a plan to
solve the original business problem. This describes the share step of the data
analysis process.
- True
- False
Explanation: What a close call! What
you are saying is more in line with the Act phase of the process of data
analysis being carried out. This is the stage at which the insights are not
only accepted, but also put into action by validating, completing, and putting
into action a plan to solve the business challenge. In most cases, the
"share" stage in the process entails sharing the results and insights
to the stakeholders, while the "Act" phase is when the actual
implementation takes place.
22. A data analyst wants to retrieve information from a
database. Select the correct tool from the data analyst’s toolkit.
- Dashboard
- Query
- Visualization
- Spreadsheet
Explanation: A query is the tool that
should be used whenever you need to get information from a database. Data
analysts interface with databases via the use of queries, which allows them to
get particular data that they want for analysis. You may think of it as the magic
spell that unlocks the doors to the database world and brings out the
information that you are looking for.
23. Data analysts use queries to request, retrieve, and
update information within a database.
- True
- False
Explanation: Unquestionably!
Data analysts and databases are connected by queries, which serve as a
communication bridge between the two. Analysts are able to submit queries, get
particular information, and even edit data inside the database to take use of
these capabilities. For the purpose of gaining the necessary insights, it is
similar to having a conversation with the database.