ECAT Pre Computer Science MCQ Test For Computer Chapter 6 With Answer

Top Scorers Of ECAT Computer Science Chapter 6 Data Communication MCQ`s Test

Sr.#	Question	Answer
1	How many types of data transmission modes are there?	A. 2 B. 3 C. 4 D. 5
2	Data communication requires only a :	A. Sender B. Receiver C. Transmission Medium D. All of the above
3	Light sound and radio waves are examples of :	A. Analog Signals B. Digital Signals C. Simple Signals D. None
4	Now-a-day computers all over the world can talk to each other. Which is one of the special accessories essential for this purpose?	A. Fax card B. Modem card C. Network Adapter card D. DVD
5	When all hardware, software, storage, and processing is housed in one location it is called.	A. a time-sharing system B. centralized processing C. a DDP system D. a host computer system
6	The process of transferring data from one location to another is called:	A. Data processing B. Data Computing C. Data communication D. Data sequencing
7	Which of the following topologies is passive?	A. Star topology B. Ring topology C. Bus topology D. Hybrid topology
8	Project 802 defines standards for which layers of the OSI model?	A. Application and Presentation layers B. Physical an Date Link layers C. Transport and Network layers D. Network and Data Link layers
9	Who invented the modem?	A. IBM B. DEC C. AT&T information System, USA D. Apple computers Inc
10	How many pairs of computers can simultaneously communicate on Ethernet LAN?	A. 1 B. 2 C. 3 D. multiple