$2.$ a $($True or False$)$ Answer the following questions using $\backslash (\backslash$mathbf$\{$T$\}\backslash )$ or $\backslash (\backslash$mathbf$\{$F$\}\backslash )$

$1.$ Serving the I$/$O Devices using Polling Mechanism is faster than Interrupt Mechanism$$

$2.$ Polling mechanism cannot serve all I$/$O Devices $()$

$3.$ Grant signal in $2-$wire daisy chain is active High $()$

$4.$ Hard$-$Disk cannot be serviced by CPU $()$

$5.3-$wire daisy chain arbitration is efficiently use the bus $()$

$6.$ Synchronous bus cannot be used with memory and all slow or fast I$/$O Devices$$

$7.$ HOLD Request signal of the DMA controller is Tri$-$State signal $()$

$8.$ IOW signal of the DMA controller is bi$-$directional signal $()$