cos3712 compilation of 1000+ mcq and answers for exam preparation

Q1.The screen images is maintained by repeating scanning the same image. This
process is known as___________
A. redisplay

B. Redrawing

C. both (a) and (b)

D. refreshing of screen [Correct Answer]



Q1. .................. refers to pixel spacing.
A. Pixmap

B. Pixel depth

C. Persistence

D. Resolution [Correct Answer]



Q1.Brightness of a display is controlled by varying the voltage on the
......................
A. Focusing anode

B. Connection pins

C. Control grid [Correct Answer]

D. Power supply



Q1.The return of electron beam to top left corner of the screen after one frame is
called ............
A. Horizontal fly-back

B. Vertical Fly-back [Correct Answer]

C. Scanning

D. None of the above



Q1.An RGB color system with 24 bits as storage per pixel is known as
........................
A. Color CRT

B. True-color system [Correct Answer]

C. RGB monitor

,D. Color- Depth



1. ................... is responsible for accessing the frame buffer to refresh the screen.
A. Graphics package

B. Video controller [Correct Answer]

C. CPU

D. Monitor



Q1.TIFF (tagged image file format )are used for
A. Vector graphics

B. Bitmap [Correct Answer]

C. Both a & b

D. None of these



Q1. The simplest output primitive is ............
A. Straight line

B. Straight line segment

C. Point [Correct Answer]

D. Circle



Q1. ..................... function is used to set the basic fill style.
A. setFillStyle(fs)

B. setFillStyleIndex(fs)

C. setInteriorStyle(fs) [Correct Answer]

D. FillType(ft)



Q1. ..................... function is used to set the basic fill style.
A. setFillStyle(fs)

B. setFillStyleIndex(fs)

C. setInteriorStyle(fs) [Correct Answer]

D. FillType(ft)

,Q1.The transformation in which the dimension of an object are changed relative to a
specified fixed point is called
A. Rotation

B. Reflection

C. Translation

D. Scaling [Correct Answer]



Q1. Two consecutive rotation transformation r1 and r2 are
A. Additive [Correct Answer]

B. Multiplicative

C. Subtractive

D. none of above



Q1.The ...................... algorithm divides a 2D space into 9 regions, of which only
the middle part (viewport) is visible.
A. Cohen-Sutherland [Correct Answer]

B. Liang Barsky

C. Sutherland Hodegeman

D. N-L-N



Q1. Which standard govern parallel communications?
A. RS232

B. RS-232a

C. CAT 5

D. IEEE 1284 [Correct Answer]



1. The mouse pointer moves erratically, what is the possible cause? The mouse
A. ball is dirty [Correct Answer]

B. is not connected

C. driver is not installed properly

D. has an incorrect IRQ setting

, Q1.After doing a low-level format, what would be the next step in configuring the
hard drive in a system?
A. Format DOS partition [Correct Answer]

B. Install operating system

C. Configure DMA channel and back-up interrupt

D. Partition had disk



Q1. What voltage does a Pentium system use?
A. +3.3 volts [Correct Answer]

B. + 5 volts

C. + 8.24 volts

D. +12 volts



Q1. Topically, how many type III PC cards can you insert in a laptop
A. 1 [Correct Answer]

B. 3

C. 5

D. 7



Q1.What is the first step in diagnosing a completely dead computer at the client site
that was working the day before.
A. check the AC outlet [Correct Answer]

B. Test the power supply

C. replace the CMOS battery

D. reseat the hard drive controller cable



Q1.A system has two IDE hard drives that are each divided into primary and
extended partitions, which drive letter is assigned to the primary partition of the
second drive?
A. A

B. B

C. C