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Answer question 27, 28, 29 showing fully all the steps. Solution should be perfect(very correct), clear, brief and explicit enough! Transcribed Image Text: B. Establish

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Answer question 27, 28, 29 showing fully all the steps. Solution should be perfect(very correct), clear, brief and explicit enough! Transcribed Image Text: B. Establish relationships among
A. C*
B. JAVA.
C. VISUAL BASIC.
D. APL.
records in different files.
C. All of the above
D. None of the above
22. Which of the following is the highest
15. One main advantage of machine
language programming is that;
A. Its execute is fast.
B. It is a simple programming
language.
C. It is machine friendly.
D. All of the above.
level in a hierarchy of data
organization?
A. Field
B. Database
C. Data file
D. Index file
16. The difference between memory and 23. How are computer systems designed?
storage is that data and memory is–
– and that in storage is —
A. Permanent, temporary
B. Temporary, permanent
C. Fast, temporal
D. Temporal, fast
By
A. Simplifying thể requirements of
the system
B. Breaking up the system into
smaller self contained
cooperating subsystems.
OBreaking up the system into
independent non-cooperating
subsystems.
D. Breaking up the system from its
bottom parts.
24. Two main measures of the efficiency
of an algorithm are:
A. Processor and memory
complexity
B. Capacity and time complexity
C. Time and space complexity
D. Data and space complexity
25. Which of the following is a linear data
structure?
A. Trees.
B. Graphs
C. Arrays
D. None of the above
26.A light pen is an example of
A. A pointing device.
B. Input-output device.
C. Input device.
D. Peripheral device.
27. In positive logic, the logic states 1
corresponds to:
A. Negative voltage
B. Higher voltage
C. Zero voltage
D. Average voltage
28.A NOR gate is ON only when all its
inputs are:
A. ON
17.The language that a computer can
understand and execute is called a(n);
A. Machine language.
B. Assembly language.
C. Object-oriented language.
D. High-level language
18. An operating system;
A. Links a program with the
subroutines it references.
B. Provides a layered user
interface to thehardware.
C. Enables a programmeruse
software procedures.
D. Can develop other operating
sysjems. an
19.A large number of computers
connected overa wide geographical
area s called
A. LAN.
MAN
C. WAN.
D. PAN.
20. The communication link between the
CPU, memory and peripherals is
called a(n):
A. Bus.
B. Card.
C. Media.
D. Interface.
21. Database management systems are
intended to;
A. Eliminate all data redundancy

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