A _____ provides a set of integrated computer tools that allow a decision maker to interact directly with computers in order to retrieve information useful for semistructured and unstructured decisions,
Which of the following are integrity controls that a DBMS may support?
Options: Assume a default value in a field unless a user enters a value for that field., Limit the set of permissible values that a field may assume., Limit the use of null values in some fields., All of the above.
Advantages of Relational Database Management systems are
Options: Flexibility, of relating different logical files, Security controls can be more easily implemented., Data independence since it allows the database to grow by adding new attributes and relations., All of the above
Options: One or more conductors that serve as a common connection for a related group of devices, a continuous frequency capable of being modulated or impressed with a second signal, the condition when two or more sections attempt to use the same channel at the same time, a collection of interconnected functional units that provides a data communications service among stations attached to the network
. What is the quickest way to select entire worksheet?
Options: a. Choose Edit -> Select all from the Menu
b. Click on the first column, press Ctrl, and then click on the last column
c. Click on the first column, press Shift, and then click on the last column
d. Click on the rectangle box on the upper left corner where column headings and row headings meet
Options: is a method for controlling the operation of a machine by means of a set of instructions, applies only to milling machines, is a method for producing an exact number of parts per hour, All of the above
You have your laptop directly connected into a router's Ethernet port. Which of the following are among the requirements for the copy flash tftp command to be successful? TFTP server software must be running on the router. TFTP server software must be running on your laptop. The Ethernet cable connecting the laptop directly into the router's Ethernet port must be a straight-through cable. The laptop must be on the same subnet as the router's Ethernet interface. The copy flash tftp command must be supplied the IP address of the laptop.
Options: 1, 3 and 4, 2, 4 and 5, 3 and 5 only, 5 only
One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as:
Options: The device that sends the monitor signals telling it what to display, The area that regulates all of the system power usage, The area where ail the of the Basic input/output routines are stored, The area where all of the processing takes place
What is the meaning of â€œHibernateâ€ in Windows XP/Windows 7?
A) Â Restart the Computer in safe mode
B) Â Restart the Computer in hibernate mode
C) Â Shutdown the Computer terminating all the running applications
D) Â Shutdown the Computer without closing the running applications
Ans:â€“ D ,
Which DOS command will format a floppy disk and transfer the system files
Options: SYS C: A:, SYS A:, FORMAT A: /S, FORMAT A: /T
Options: the elapsed time between the receipt of the input and the availability of the output, a group of related fields, the key information of programming, a program statement that violates one or more rules of the language in which it is written