JMU COB 204 CHAPTERS 9-12 EXAM
QUESTIONS AND CORRECT
ANSWERS
\.Explicit Knowledge - ANSWERS✔-things we can write down, isolation
\.Tacit Knowledge - ANSWERS✔-what's in our head, interaction
\.Knowledge Management - ANSWERS✔-process of creating value by extracting
and sharing intellectual knowledge across the organization
\.Why Don't Employees Share Knowledge? - ANSWERS✔-1. fear of looking
incompetent
2. prohibitive organizational culture esp. a competitive one
3. busy, overworked
\.data mining - ANSWERS✔-using stats to find patterns to classify and predict
outcomes
\.unsupervised data mining - ANSWERS✔-exploring, looking for patterns, don't
know what you're looking for. Cluster analysis market basket
, \.supervised data mining - ANSWERS✔-know model and outcomes a prior
(beforehand), decision trees, regression, neural networks
\.volume - ANSWERS✔-tons of it, decades of transaction data, cheap to store it
\.velocity - ANSWERS✔-rate data recieved
\.variety of stuff - ANSWERS✔-formats inconsistant, structured and unstructured,
how to handle?
\.variability - ANSWERS✔-data doesn't always come in at the same rate all the
time (item goes viral on social media)
\.complexity of data - ANSWERS✔-many sources of data go beyond immediate
company
\.Big Data IT Tools - ANSWERS✔-architectures for handling big data (cassandra,
hadoop, scala, apache)
\.3 Main Sources of Threats - ANSWERS✔-1. people (unintentional)
2. people (intentional)
3. nature
QUESTIONS AND CORRECT
ANSWERS
\.Explicit Knowledge - ANSWERS✔-things we can write down, isolation
\.Tacit Knowledge - ANSWERS✔-what's in our head, interaction
\.Knowledge Management - ANSWERS✔-process of creating value by extracting
and sharing intellectual knowledge across the organization
\.Why Don't Employees Share Knowledge? - ANSWERS✔-1. fear of looking
incompetent
2. prohibitive organizational culture esp. a competitive one
3. busy, overworked
\.data mining - ANSWERS✔-using stats to find patterns to classify and predict
outcomes
\.unsupervised data mining - ANSWERS✔-exploring, looking for patterns, don't
know what you're looking for. Cluster analysis market basket
, \.supervised data mining - ANSWERS✔-know model and outcomes a prior
(beforehand), decision trees, regression, neural networks
\.volume - ANSWERS✔-tons of it, decades of transaction data, cheap to store it
\.velocity - ANSWERS✔-rate data recieved
\.variety of stuff - ANSWERS✔-formats inconsistant, structured and unstructured,
how to handle?
\.variability - ANSWERS✔-data doesn't always come in at the same rate all the
time (item goes viral on social media)
\.complexity of data - ANSWERS✔-many sources of data go beyond immediate
company
\.Big Data IT Tools - ANSWERS✔-architectures for handling big data (cassandra,
hadoop, scala, apache)
\.3 Main Sources of Threats - ANSWERS✔-1. people (unintentional)
2. people (intentional)
3. nature
