MIS 180 (SDSU) Exam 2 Questions and
Answers 100% Solved | Rated A+
structured data - ✔✔data easily searchable by algorithms
ex. facts, questionnaire, online behavior, constructed data
unstructured data - ✔✔data that is difficult to be searched by algorithms,
doesn't fit into relational databases; has internal structure but it is not
structured via pre-defined data models or schema
ex. emails, voice messages, texts, social media
which is easier for businesses to process, and why? - ✔✔structured data is
easier for businesses to process because it is easier for everyone to
access and controlled by professionals
why should we, in a business, avoid using spreadsheets to stored data and
instead use a database management system? - ✔✔spreadsheets have
issues:
- data duplication
- difficulty in data retrieval and search
- poor data integrity
1
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, - difficulty in relating different data elements
what are spreadsheets good for? - ✔✔spreadsheets are fine for very
simple data storage tasks such as keeping simple lists, good for analyzing
data, and displaying information visually
what are databases good for? - ✔✔databases are good for storing and
organizing information
what are 3 reasons to avoid using spreadsheets? - ✔✔vulnerable to errors,
no clear formatting rules, only one person can use a spreadsheet at a time,
real-time updates are impossible
characteristic of high-quality information: accurate - ✔✔the degree to which
information is correct and free from error
- is there an incorrect value in the information?
characteristic of high-quality information: complete - ✔✔- is there a value
missing from the information?
characteristic of high-quality information: consistent - ✔✔the degree to
which information is compatible with previous information
- is summary information in agreement with the detailed information?
characteristic of high-quality information: timely - ✔✔the degree to which
information is available in time to perform the task at hand
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Answers 100% Solved | Rated A+
structured data - ✔✔data easily searchable by algorithms
ex. facts, questionnaire, online behavior, constructed data
unstructured data - ✔✔data that is difficult to be searched by algorithms,
doesn't fit into relational databases; has internal structure but it is not
structured via pre-defined data models or schema
ex. emails, voice messages, texts, social media
which is easier for businesses to process, and why? - ✔✔structured data is
easier for businesses to process because it is easier for everyone to
access and controlled by professionals
why should we, in a business, avoid using spreadsheets to stored data and
instead use a database management system? - ✔✔spreadsheets have
issues:
- data duplication
- difficulty in data retrieval and search
- poor data integrity
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, - difficulty in relating different data elements
what are spreadsheets good for? - ✔✔spreadsheets are fine for very
simple data storage tasks such as keeping simple lists, good for analyzing
data, and displaying information visually
what are databases good for? - ✔✔databases are good for storing and
organizing information
what are 3 reasons to avoid using spreadsheets? - ✔✔vulnerable to errors,
no clear formatting rules, only one person can use a spreadsheet at a time,
real-time updates are impossible
characteristic of high-quality information: accurate - ✔✔the degree to which
information is correct and free from error
- is there an incorrect value in the information?
characteristic of high-quality information: complete - ✔✔- is there a value
missing from the information?
characteristic of high-quality information: consistent - ✔✔the degree to
which information is compatible with previous information
- is summary information in agreement with the detailed information?
characteristic of high-quality information: timely - ✔✔the degree to which
information is available in time to perform the task at hand
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
