The necessary conditions needed before deadlock can occur?
Options: Â No Mutual Exclusion, Hold and wait, Preemption, Circular Wait
B. Â Mutual Exclusion, No Hold and wait, Preemption, Circular Wait
C. Â Mutual Exclusion, Hold and wait, No Preemption, Circular Wait
D. Â Mutual Exclusion, Hold and wait, Preemption, No Circular Wait
Which one of the following statements is true for the voltage in a parallel RL circuit?
Options: The voltage always has the same amplitude and phase for every part of the circuit, The total voltage is equal to the sum of the voltages across the resistance and inductance, The total voltage lags the total current by less than 90, The total voltages is less than the sum of the voltages across the resistance and inductance
Which of the following is not true about modifying table columns?
Options: You can drop a column at any time., You can add a column at any time as long as it is a NULL column., You can increase the number of characters in character columns or the number of digits in numeric columns, You cannot increase or decrease the number of decimal places.