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FIRST PUBLISHED: SEPTEMBER 2024
ISQS 2340 Exam 2 Review TTU- Mitchell
Questions and Answers | 100% Pass
What is a data-driven culture? - ✔️✔️Correct-A data-driven culture uses data-driven
decision making
Examples of Google using data and analytics? - ✔️✔️Correct-At Google. decisions are
based on data, analytics and scientific experimentation.
Tried to answer the question of: Do managers matter?Determine the data to use (see
what's available and what might be needed) • Performance reviews (top-down) and
employee surveys (bottom-up) of managers • Looking for variability: Top and bottom
quartiles • Analyze the data using statistical methods
The abundance of data, and its implications and the potential benefits from analytics for
businesses? - ✔️✔️Correct-Big Data - The sheer volume of data
• Increased efficiency • Improved operations • Enhanced customer retention
Purpose and usefulness of Tableau and data visualization in general? - ✔️✔️Correct-
Data visualization is not a personal preference, to be done "just in case some people
are more visual." It is a necessity! • The previous slide is a classic example of how some
insights can only be found through visualization. Remember the picture superiority
effect: pictures are retained at much higher rates than words.A good visualization
reduces the time to insight.
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OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
Value creation with data analytics (think exchange transactions and uncertainties)? -
✔️✔️Correct-NO pie charts! Yes to scatterplots for exploring relationships. Yes to
treemaps for relative proportions. Orient data so people can read it (better to have a
horizontal bar chart than a vertical bar chart). Filled maps with only one measure, dash
boarding
what is blockchain technology? - ✔️✔️Correct-A blockchain is a distributed ledger of
transactions
Blockchains lineage (where it came from/ first used)? - ✔️✔️Correct-A block consists of
multiple timestamped transactions • Multiple blocks are joined together in a chain •
Nodes are connected devices that have a copy of the entire blockchain • The nodes are
periodically synchronized to ensure consensus
What are the main parts of blockchain technology? - ✔️✔️Correct-1. Users initiate
transactions using their Digital Signatures. 2. Users Broadcast transactions to Nodes. 3.
One or more Nodes begin validating each transaction. 4.Nodes aggregate validated
transactions into Blocks. 5. Nodes broadcast blocks to each other. 6. Consensus
protocol used. 7. Block reflecting "true state" is chained to prior Block.
Implications of blockchain buyers, sellers, and the middleman? - ✔️✔️Correct-The
blockchain has the potential to reinvent any transaction that now requires going through
a middleman, including finance, banking, contacts, and retail.
Blockchain applications - ✔️✔️Correct-• Cryptocurrencies, such as Bitcoin, Ethereum,
Litecoin, etc. • Digital identity • Any application where a secure, immutable record must
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