Match each of the following terms to its best description:I.DatasetII.Data modelIII.Data miningIV.OutlineV.GroupA.The underlying data of a PivotTableB.Evaluating a large dataset looking for trendsC.Related tablesD.A tool to organize items in an outlineE.Hierarchical structure
Fill in the blank(s) with the appropriate word(s).
A, C, B, E, D
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Identify the bridges that transmit BPDUs after the spanning tree protocol has converged. For each Ethernet segment, determine the following fields for the BPDU sent on that segment: root ID, root path cost, and bridge ID. Explain how these message are interpreted. Show how the entire spanning tree can be constructed from these messages.
What will be an ideal response?
Suppose that you decide to convert Is A hierarchies into the relational model by adding a new attribute (such as Status in the case of Student entities, the second option for representing Is A hierarchies). What kind of problems exist if subentities are not disjoint (e.g., if a secretary can also be a technician)? What problems exist if the covering constraint does not hold (e.g., if some employees are not classi?ed as either secretary or technician)?
What will be an ideal response?
The Start menu might display any of the following that enable you to make your choice EXCEPT:
A) text B) thumbnails C) small icons D) large icons
Lisa, a network technician, is troubleshooting a new wireless network that has been dropping connections. She notices another wireless network in the area. Which of the following BEST explains the reason for the dropped connections?
A. Latency B. SSID mismatch C. Interference D. Encryption type