Answer question 18, 19, 20 showing fully all the steps. Solution should be perfect(very correct), clear, brief and explicit enough! B. Establish relationships amongA. C*B. JAVA.C. VISUAL BASIC.D. APL.records in different files.C. All of the aboveD. None of the above22. Which of the following is the highest15. One main advantage of machinelanguage programming is that;A. Its execute is fast.B. It is a simple programminglanguage.C. It is machine friendly.D. All of the above.level in a hierarchy of dataorganization?A. FieldB. DatabaseC. Data fileD. Index file16. 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, temporaryB. Temporary, permanentC. Fast, temporalD. Temporal, fastByA. Simplifying thể requirements ofthe systemB. Breaking up the system intosmaller self containedcooperating subsystems.OBreaking up the system intoindependent non-cooperatingsubsystems.D. Breaking up the system from itsbottom parts.24. Two main measures of the efficiencyof an algorithm are:A. Processor and memorycomplexityB. Capacity and time complexityC. Time and space complexityD. Data and space complexity25. Which of the following is a linear datastructure?A. Trees.B. GraphsC. ArraysD. None of the above26.A light pen is an example ofA. A pointing device.B. Input-output device.C. Input device.D. Peripheral device.27. In positive logic, the logic states 1corresponds to:A. Negative voltageB. Higher voltageC. Zero voltageD. Average voltage28.A NOR gate is ON only when all itsinputs are:A. ON17.The language that a computer canunderstand and execute is called a(n);A. Machine language.B. Assembly language.C. Object-oriented language.D. High-level language18. An operating system;A. Links a program with thesubroutines it references.B. Provides a layered userinterface to thehardware.C. Enables a programmerusesoftware procedures.D. Can develop other operatingsysjems. an19.A large number of computersconnected overa wide geographicalarea s calledA. LAN.MANC. WAN.D. PAN.20. The communication link between theCPU, memory and peripherals iscalled a(n):A. Bus.B. Card.C. Media.D. Interface.21. Database management systems areintended to;A. Eliminate all data redundancy

Dear Student, An operating system provides a layered user interfaces to the hardware. It does not…

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 the hardware. C. Enables a programmenuse software procedures. D. Can develop other operating systems. 19.A large number of compoters connected overa wide geographical area s called A. LAN. B. 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.

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 the hardware. C. Enables a programmenuse software procedures. D. Can develop other operating systems. 19.A large number of compoters connected overa wide geographical area s called A. LAN. B. 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.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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