Online NAT ICS Computer Science Computer Test Preparation for Pakistani Students

NAT I Computer Science Computer

Sr. #	Questions	Answers Choice
1	The data transmission mode in which data flows in one direction only is	SImplex Half-duplex Full-duplex None of the above
2	Data communication requires a	Sender Receiver Medium All of the above
3	A combination of four binary digits is called:	Bit Nibble Byte None of the above
4	Data can be in the form of	Numbers Images Characters All of the above
5	Which of the following layers in OSI model routes data from sender to receiver?	Transport layer Application layer Physical layer Network layer
6	Which of the following is not a function of presentation layer in OSI model?	Manage coding schemes Check passwords Provide services for compression of data Provide services for encryption of data
7	The layer next to the application layer in OSI model is	Session layer Presentation layer Transport layer
8	This layer is the OSI model provides network services to user applications	Physical Transport Application Presentation
9	OSI reference model has	1 Layer 3 layers 6 layers 7 layers
10	This LAN access method that allows multiple devices to talk at once and a protocol determines which device receives priority	CSMA/CD CSMA/CS CSMA/CR None of the above