Describe how fan and chasm traps can occur in an ER model and how they can be resolved.
What will be an ideal response?
A fan trap occurs where a model represents a relationship between two entity types, but the
pathway between certain entity occurrences is ambiguous. Resolve the fan trap by
restructuring the original ER diagram to represent the correct association between these
entities
A chasm trap occurs where a model suggests the existence of a relationship between entity
types, but the pathway does not exist between certain entity occurrences. A chasm trap may
occur where there are one or more relationships with optional participation. Resolve the chasm
trap by identifying the missing relationship
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A category of data (e.g., file name, page number, current date) that can be inserted into a document is a(n) ________
Fill in the blank(s) with correct word
The individual pages of an Excel document are called
A) charts. B) worksheets. C) cells. D) workbooks.
The symbol used in Excel to indicate division is ________
Fill in the blank(s) with the appropriate word(s).
What are three ways for a host device to receive an IP address? (Select three.)
A) From a DNS server B) From a DHCP server C) Statically assign one D) Assigned by an IPCONFIG server E) APIPA