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
Options: a. You can find deleted files in recycle bin
b. You can restore any files in recycle bin if you ever need
c. You can increase free spaceof disk by sending files in recycle bin
d. You can right click and choose Empty Recycle Bin to clean it at once
The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer
Options: An additional token is added for every 1,000 nodes, The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500, The network becomes less efficient, After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device
. All of the following are task performed by the operating system except
Options: a. Managing hardware on the computer
b. Controlling the access that application program has to the CPU
c. Performing housekeeping task like file compression and disk defragmentation
d. Provides an interface for user to interact with computer
Options: the period in which the moon completes an orbit around the earth, the period in which the moon completes an orbit around the earth and returns to the same positions in the sky, the period of rotation of moon, None of the above
A supertype/subtype hierarchy has which of the following features?
Options: Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype., Attributes are assigned at the highest logical level., Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype., Attributes are assigned at the lowest logical level.
Options: (A)Can place a chart on a new chart sheet or on any sheet in the workbook (B) Can only place a chart on new chart sheet (C) Can only place a chart on a new blank worksheet (D) Can only be used to create embedded charts
Options: (A)Maintenance performed to correct faults in hardware or software (B) A failure of software-controlled systems in convenience, but there are source systems where system failure is resulted in significant critical losses. (C) Failure that corrupts system state or data (D) None is true | 97 15