Which of the following APIs will be used to enable or disable "Show call duration"?

Which one is NOT a valid integer data type in Symbian OS programming?

For S60 devices, what is the minimum size that an element should have, in order to be considered as index finger usable?

Which services is/are provided by the ESOCK of the Symbian OS?

In an S60 device, which touch event will activate a menu command under the finger?

What function(s) does the Trusted Computing Base (TCB) in Symbian OS perform?

Consider the following lines of code. What does it signify if aForeground is set to FALSE?
void CMyViewAppUi::HandleForegroundEventL(TBool aForeground)
    {
    if (aForeground==TRUE)
        {
        iEikonEnv->InfoMsg(_L('Some Message here'));
        }
    else
        {
        iEikonEnv->InfoMsg(_L('Some Message here'));
        }
    }

Which server is a serial communications server that drives the communications ports and also runs serial-like protocols that use other communications services?

Which TDisplayMode display mode is used to display 16 shades of gray?

Which functions is/are provided by the Kernel and hardware services of the Symbian Operating System?

Which one CANNOT be highlighted, selected or retrieved in a text viewer editor, using the CAKnItemFinder class of the Item Finder API?