Interview Questions Answers.ORG
Interviewer And Interviewee Guide
Interviews
Quizzes
Home
Quizzes
Interviews Certifications Interviews:AFMCAIIMS ExamCCDA CertificationCCIE CertificationCCIP CertificationCCSP CertificationCertificationsCheck Point CertificationCISCO CertificationCIW CertificationEngineering Entrance ExamsEntrance ExamsGATE ExamIBM CertificationICET ExamIIT JEEISTQB CertificationManagement Entrance ExamsMATMCDBA CertificationMCSD.NET - 70-089MCSD.NET - 70-300MCSD.NET - 70-306 ExamMCSD.NET - 70-310 ExamMCSD.NET - 70-315 ExamMCSD.NET - 70-316 ExamMCSD.NET - 70-320 ExamMCSD.NET - 70-330 ExamMCSD.NET - 70-340 ExamMCTS .Net CertificationMedical Science Entrance ExamsMicrosoft CertificationMSCE 2003 CertificationNovell CertificationNovell CLE 9 CertificationNovell CLP CertificationNovell CNA CertificationNovell CNE CertificationNovell MCNE CertificationOCP 9i DBA CertificationOPENMAT ExamOracle Application DeveloperOracle CertificationPMI CertificationPost Graduation Entrance ExamsRed Hat CertificationS/W Quality AssuranceSun CertificationSybase CertificationTesting Certification
Copyright © 2018. All Rights Reserved
Z os dba Question:
Suppose there are three light switches outside a room. Inside is a single light bulb, controlled by one of the three switches. You need to determine which switch operates the bulb. You can turn the switches on and off as many times as you wish (they are all off to begin with), but may only enter the room once. There is no one there to help you. The door to the room is closed, and there are no windows, so you cannot see inside. How can you discover which switch operates the bulb?
Submitted by: AdministratorDo the following steps:
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
Copyright 2007-2024 by Interview Questions Answers .ORG All Rights Reserved.
https://InterviewQuestionsAnswers.ORG.
https://InterviewQuestionsAnswers.ORG.