Answer: I think it's D.
Explanation: I'm sorry if I chose the wrong answer, I'm not too good with stuff like this.
Answer:
1. DBMS
C. <em>A storage system that provides efficient access to randomly chosen items</em>
G. <em>Performs database operations requested by application software</em>
2. data mining
B. <em>The process of extracting hidden information</em>
3. hash file
A. <em>A. means of locating a particular record within a file</em>
4. index key field
F. <em>An item used to identify records uniquely</em>
5. locking protocol
E. <em>A system to guard against database errors due to performing transactions concurrently</em>
6. relation
D. <em>A structural unit (with rows and columns) in a popular database model</em>
7. roll back schema
I. <em>A "road map" of a particular database's design</em>
J. <em>To "unwind" a transaction</em>
8. SQL
H. <em>A popular language that implements relational database operations.</em>
Answer:
timer interrupt
Explanation:
A timer is an interrupt that is generated by the PC's system timer.When this interrupt occurs, the ROM BIOS interrupt handler is called and it increments a count in the ROM BIOS.It interrupts the system 18.2 times per second.It is used for multitasking.Hence we conclude that timer interrupt is the answer.
Answer: star topology.
Explanation:
The layout of the way how the computers in a netword are interconnected is called network tipology.
Some types of network topologies are:
1) Point-to-point tipology: all the computers are connected to each other directly (computer-to-computer, in pairs, this is a direct link between each two computers).
2) Bus topology: all the nodes (computers or server) are connectect to a maing cable.
3) Star topology: all the computers are connected to a central computer or server which is called central hub. This is the layout described in the question.
4) Ring topology: the computers are connectec in a circular path; each computer is connected to the next computer.
5) Mesh: every computer is connected to every other computer.
Answer: I believe it's software.
