45801. In a two stroke engine at the time of spark occurs.
45802. Which of the following is a rich air fuel ratio?
45803. A snowflake schema is which of the following types of tables?
45804. The generic two-level data warehouse architecture includes which of the following?
45805. Fact tables are which of the following?
45806. Data transformation includes which of the following?
45807. Reconciled data is which of the following?
45808. The load and index is which of the following?
45809. The extract process is which of the following?
45810. A star schema has what type of relationship between a dimension and fact table?
45811. Transient data is which of the following?
45812. A multifield transformation does which of the following?
45813. A data mart is designed to optimize the performance for well-defined and predicable uses.
45814. Successful data warehousing requires that a formal program in total quality management (TQM) be implemented.
45815. Data in operational systems are typically fragmented and inconsistent.
45816. Most operational systems are based on the use of transient data.
45817. Independent data marts are often created because an organization focuses on a series of short-term business objectives.
45818. Joining is the process of partitioning data according to predefined criteria.
45819. The role of the ETL process is to identify erroneous data and to fix them.
45820. Data in the data warehouse are loaded and refreshed from operational systems.
45821. Star schema is suited to online transaction processing, and therefore is generally used in operational systems, operational data stores, or an EDW.
45822. Periodic data are data that are physically altered once added to the store.
45823. Both status data and event data can be stored in a database.
45824. Static extract is used for ongoing warehouse maintenance.
45825. Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem.
45826. Every key used to join the fact table with a dimensional table should be a surrogate key.
45827. Derived data are detailed, current data intended to be the single, authoritative source for all decision support applications.
45828. Data scrubbing is which of the following?
45829. The @active data warehouse architecture includes which of the following?
45830. A goal of data mining includes which of the following?
45831. An operational system is which of the following?
45832. A data warehouse is which of the following?
45833. The percentage of combustion heat,available at crank shaft for useful work output is:
45834. In an engine having swirl combustion chamber
45835. The main purpose of piston pin offset is to:
45836. Some automobile engines have glow plugs to:
45837. The upper and lower ends of the combustion chamber is formed by:
45838. When assessing the table structure of an acquired set of tables with data, determining foreign keys is (part of) the:
45839. Creating a read-only database is a task that is ________ assigned to beginning database professionals.
45840. Each answer below shows example data from a table. Which answer is an example of the general-purpose remarks column problem?
45841. For a number of reasons, normalizations is not often an advantage for a(n) ________ database.
45842. Most of the time, modification anomalies are serious enough that tables should be normalized into:
45843. Each answer below shows example data from a table. Which answer is an example of the missing values problem?
45844. When assessing the table structure of an acquired set of tables with data, determining functional dependencies is (part of) the:
45845. Each answer below shows example data from a table. Which answer is an example of the multivalue, multicolumn problem?
45846. When assessing the table structure of an acquired set of tables with data, counting the number of table rows is (part of) the:
45847. If a table has been normalized so that all determinants are candidate keys, then that table is in:
45848. Read-only databases are ________ updated.
45849. Needing to assess the validity of assumed referential integrity constraints on foreign keys is a(n) ________ of normalization.
45850. When assessing the table structure of an acquired set of tables with data, determining primary keys is (part of) the: