One of the major benefits of using CAD in tool design is that:
Options: product design represents approximately one-half the engineering costs, tool motions can be checked to see if there is interference between the tool and the object, there is better coordination in the materials-handling area, it simplifies the trial-and-error method
Options: means storing records in contiguous blocks according to a key., Stores records sequentially but uses an index to locate records, uses an index for each key type, has records placed randomly throughout the file
. A real time operating system is most likely to be used for which of the following task?
Options: a. Controlling access to a shared printer in a network
b. Ensuring that system clock works correctly on server
c. Managing the access to system files in a laptop computers
d. Controlling the fuel injection system of an automobile engines
The proper definition of a modern digital computer is
Options: an electronic automated machine that can solve problems involving words and numbers, a more sophisticated and modified electronic pocket calculator, any machine that can perform mathematical operations ', a machine that works on binary code
Which one of the following statements most accurately describes the nature of inductive reactance?
Options: Inductive reactance is an opposition to current flow in dc circuits, Inductive reactance is an opposition to current flow in ac circuits, Inductive reactance is another term for counter emf, Inductive reactance is a force that tends to overcome the effects of counter emf
A rule of thumb for choosing indexes for a relational database includes which of the following?
Options: Indexes are more useful on smaller tables., Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries., Do not specify a unique index for the primary key of each table., Be careful indexing attributes that have null values.
You are working with a network that has the network ID 172.16.0.0, and you require 25 subnets for your company and an additional 30 for the company that will merge with you within a month. Each network will contain approximately 600 nodes. What subnet mask should you assign?
Options: A single logical database that is spread to multiple locations and is interconnected by a network, A loose collection of file that is spread to multiple locations and is interconnected by a network, A single logical database that is limited to one location., A loose collection of file that is limited to one location.