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Explore questions in the Computer Science category that you can ask Spark.E!
- _____ topology favors use in difficult terrains
- __________ cables are used when requirements are low cost, easy installation, no high speed data requirements, short range transmission
- ______ communication medium has health hazards
- how are twisted pair cables connected
- _______ topology enables full connectivity
- how often are amplifiers required for analog transmission
- what is the advantage of shielded over unshielded twisted pair cable
- the communication protocol used by the internet is ____
- ______ topology favors shortest length of cable
- The process of streamlining data to minimize redundancy and awkward many-to-many relationships is calledA) normalization.B) data scrubbing.C) data cleansing.D) data defining.
- A schematic of the entire database that describes the relationships in a database is called a(n)A) data dictionary.B) intersection relationship diagram.C) entity-relationship diagram.D) data definition diagram.
- Which of the following is NOT one of the techniques used in Web mining?A) content miningB) structure miningC) usage miningD) user mining
- A one-to-one relationship between two entities is symbolized in a diagram by a line that ends withA) two short marks.B) one short mark.C) a crow's foot.D) a crow's foot topped by a short mark.
- ________ tools are used to analyze large unstructured data sets, such as e-mail, memos, survey responses, etc., to discover patterns and relationships. A) OLAPB) Text miningC) Web miningD) Web content mining
- Data cleansing not only correct errors but alsoA) establishes logical relationships between dataB) structures dataC) normalizes dataD) enforces consistency among different sets of data
- The special organizational function whose responsibilities include database design and maintenance, is calledA) data administrationB) database administrationC) information policy administrationD) data auditing
- An alternative to using application server software for interfacing between a Web server and back-end databases isA) CGI.B) HTML.C) Java.D) SQL.
- In terms of data relationships, associations refers toA) events linked over time.B) patterns that describe a group to which an item belongs.C) occurrences linked to a single event.D) undiscovered groupings.
- Data mining is a tool for allowing users toA) quickly compare transaction data gathered over many years.B) find hidden relationships in data.C) obtain online answers to ad hoc questions in a rapid amount of time.D) summarize massive amounts of data into much smaller, traditional reports.
- Detecting and correcting data in a database or file that are incorrect, incomplete, improperly formatted, or redundant is calledA) data auditingB) defragmentationC) data scrubbingD) data optimization