Of the following statements, which is the best comparison of repeaters and bridges?

1. (p. 67) Which of the following speeds is the original maximum data transfer rate of the first Ethernet developed by Xerox?
A. 3 Mbps
B. 16 Mbps
C. 10 Mbps
D. 56 Kbps

2. (p. 67) Which of the following companies was NOT involved in the 1979 introduction of the DIX Ethernet standard?
A. Intel
B. Xerox
C. Microsoft
D. DEC

3. (p. 67) Which of the following is NOT a shared attribute of all members of the Ethernet family of networking technologies?
A. the same logical bus topology
B. the same kind of cabling
C. the same frame type
D. the same network access method

4. (p. 67) Which type of cabling does the 10BaseT standard specify?
A. coaxial
B. fiber-optic
C. STP
D. UTP

5. (p. 69) How many basic pieces of information does an Ethernet frame contain?
A. four
B. five
C. six
D. seven

6. (p. 69) Which of the following statements best describes the preamble of an Ethernet frame?
A. It contains the CRC.
B. It includes 64 bits of alternating ones and zeroes that ends with 11 to notify the receiving NIC that a frame is starting.
C. It contains the MAC address of the source and the destination.
D. It contains the IP address of the source and the destination and is used by routers to deliver the frame to the proper location.

7. (p. 70) What does it mean if a NIC runs in promiscuous mode?
A. It broadcasts all frames.
B. It processes all frames.
C. It replies to all frames.
D. It forwards all frames.

8. (p. 70) Which of the following would NOT be included in the data portion of an Ethernet frame on an IP network?
A. the data being sent
B. the IP addresses of the sending and receiving systems
C. sequencing numbers
D. the length of the data being transmitted

9. (p. 70) What is the minimum size of an Ethernet frame?
A. 64 bytes
B. 256 bytes
C. 1024 bytes
D. 1500 bytes

10. (p. 72) When a collision occurs on a network relying on the CSMA/CD access method, what alerts the NICs?
A. multiple access
B. overlapping signals
C. cyclic redundancy check
D. spanning tree protocol

11. (p. 73) What is the biggest differentiator among Ethernet hubs?
A. the size of the power supply
B. the types of connectors
C. the number of ports
D. the price

12. (p. 72) What is an acceptable maximum collision rate on a properly running Ethernet network?
A. 1%
B. 5%
C. 10%
D. 20%

13. (p. 81) What events, characteristic to an Ethernet network using hubs, does using an Ethernet switch minimize or avoid?
A. resends
B. collisions
C. termination
D. frame checking

14. (p. 74) Which Ethernet cabling standard defines an Ethernet network that uses CAT3 or better UTP cabling, operating at 10Mbps?
A. 10BaseFL
B. 10BaseT
C. 10Base2
D. 100BaseTX

15. (p. 76) Which of the following is not identified in a cabling specification such as 10BaseT?
A. the signal type
B. the speed
C. the maximum length
D. the maximum number of routers

16. (p. 77) Which standard specifies multimode cabling?
A. 10BaseFL
B. CAT5e
C. 10BaseT
D. CAT6

17. (p. 76) What is the maximum distance between a hub and a node on a 10BaseT network?
A. 2.5 meters
B. 100 meters
C. 50 meters
D. 500 meters

18. (p. 76) What is the maximum number of nodes that can be attached to a 10BaseT segment or hub?
A. 10
B. 16
C. 1024
D. 1000

19. (p. 76) What is the maximum speed at which 10BaseT Ethernet networks communicate?
A. 3 Mbps
B. 10 Mbps
C. 100 Mbps
D. 500 Mbps

20. (p. 76) What kind of cabling does the 10BaseFL standard specify?
A. coax
B. STP
C. UTP
D. fiber-optic

21. (p. 76) Which of the following is NOT an advantage of fiber-optic cabling over UTP?
A. The signals travel farther.
B. It has a longer maximum distance.
C. It is easier and cheaper to install than UTP.
D. It is immune to electrical interference.

22. (p. 74) How many pairs of pins in an RJ-45 connector does a 10BaseT device actually use?
A. 2
B. 4
C. 6
D. 8

23. (p. 67) Which of the following is true of an Ethernet hub?
A. It works as an amplifier to boost signal strength.
B. It reads a signal coming in from one port and repeats the signal out to the other ports.
C. It reduces the collisions on an Ethernet network.
D. It sends the same signal back down the port that originally sent it.

24. (p. 80) What basis do bridges use to determine whether to forward traffic?
A. MAC addresses
B. IP addresses
C. traffic conditions at the time
D. nothing because bridges forward all traffic

25. (p. 73) Which version of Ethernet was introduced in 1990?
A. 10BaseFL
B. 802.3
C. CSMA/CD
D. 10BaseT

26. (p. 74) How many pins does an RJ-45 connector have?
A. 2
B. 4
C. 8
D. 6

27. (p. 74) How many wires does the 10BaseT specification require in the cabling used?
A. 4
B. 8
C. 64
D. 6

28. (p. 80) Of the following statements, which is the best comparison of repeaters and bridges?
A. Repeaters and bridges both amplify the data and retransmit the frames to provide better fault tolerance.
B. A repeater is an intelligent device that examines the packets while a bridge merely links segments
C. Repeaters retransmit all packets, while bridges examine the destination MAC address to determine which packets to forward onto the next segment.
D. While bridges link segments to make a larger network, repeaters help manage and reduce traffic

29. (p. 74) What is the meaning of the "10" in 10BaseT?
A. 10 meters maximum distance
B. cabling with 10 pairs
C. cabling with 10 wires
D. maximum speed of 10 Mbps

30. (p. 75) What is the purpose of a crimper?
A. to attach the RJ-45 connector to the NIC
B. to connect a NIC to a hub
C. to connect a RJ-45 connector to the cable
D. to install a NIC in a PC