Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases.

Q. Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases.

A. Network collisions occur B. Repeaters cannot increase the signal strength sufficiently C. Cable terminators do not reflect the signal properly D. Cable terminators do not absorb the signal properly E. "Line echo" occurs due to the impedance of the cable

Similar Questions

1. Protocols are

A. Agreements on how communication components and DTE B. Logical communication channels used for transferri C. Physical communication channels used for transferr D. None of the above

2. The method of communication in which transmission takes place in both directions, but only one direction at a time is called

A. Simplex B. Four wire circuit C. Full Duplex D. Half Duplex

3. Error detection at the data link level is achieved by

A. Bit Stuffing B. Cyclic Redundancy Code C. Hamming Code D. Equalization

4. Which of the following is a wrong example of network layer?

A. Internet Protocol (IP) - ARPANET B. X.25 Packet Level Protocol (PLP)-ISO C. Source routing and domain naming-USENet D. X.25 level 2-ISO

5. The topology with highest reliability is:

A. Bus topology B. Star topology C. Ring topology D. Mesh topology

6. "BAUD" rate means

A. The number of bits transmitted per unit time. B. The number of bytes transmitted per unit time. C. The rate at which the signal changes. D. None of the above

7. Start and stop bits are used in serial communication for

A. Error detection B. Error correction C. Synchronization D. Slowing down the communication

8. Unmodulated signal coming from a transmitter is know as

A. Carrier signal B. Baseband signal C. Primary signal D. None of these

9. How many Character per sec(7bits + 1parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 "Start" and 1 "stop" bit)?

A. 300 B. 240 C. 250 D. 275

10. Which one of the following network uses dynamic or adaptive routing?

A. TYMNET B. ARPANET C. SNA(IBM's System Network Architechture) D. None of these

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