The document contains questions and answers about networking technologies like Ethernet. It discusses the maximum distance for thick Ethernet without a repeater, common aspects of different versions of Gigabit Ethernet, cable specifications for Gigabit Ethernet, applications that take advantage of 1000BASE-T, factors limiting fiber bandwidth, why half-duplex operation is undesirable for Gigabit Ethernet, devices that can interconnect 1000BASE-T and 100BASE-T networks, applications where Gigabit Ethernet became dominant, transmission modes for 100BASE-TX, media types for 10BASE-T networks, encoding methods for Gigabit Ethernet variants, components needed for a 10BASE-T installation, advantages of 10BASE5 networks, Ethernet
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Q1 On Ch07 Ethernet Technologies
1. Cisco 1 - Networking Basics Chapter 7
What is the maximum distance for thick Ethernet without using a repeater?
1. 185m (606.95 ft.)
2. 250m (820.2 ft.)
3. 500m (1640.4 ft.)
4. 800m (2624.64 ft.)
Perrine. J 07/15/09 Page 1
2. Cisco 1 - Networking Basics Chapter 7
What is the maximum distance for thick Ethernet without using a repeater?
? 185m (606.95 ft.)
? 250m (820.2 ft.)
? 500m (1640.4 ft.)
? 800m (2624.64 ft.)
Perrine. J 07/15/09 Page 2
3. Cisco 1 - Networking Basics Chapter 7
Which of the following are common to all versions of Gigabit Ethernet? (Choose
three.)
1. packet size
2. frame format
3. medium
4. timing
5. transmission
6. wavelength
Perrine. J 07/15/09 Page 3
4. Cisco 1 - Networking Basics Chapter 7
Which of the following are common to all versions of Gigabit Ethernet? (Choose
three.)
? packet size
? frame format
? medium
? timing
? transmission
? wavelength
Perrine. J 07/15/09 Page 4
7. Cisco 1 - Networking Basics Chapter 7
Which applications take advantage of the increased data transport speeds
provided by 1000BASE-T? (Choose four.)
1. inter-switch links
2. video streaming applications
3. server to DAT backup drive links
4. thin clients and their servers
5. intra-building backbones
6. network connected printers
Perrine. J 07/15/09 Page 7
8. Cisco 1 - Networking Basics Chapter 7
Which applications take advantage of the increased data transport speeds
provided by 1000BASE-T? (Choose four.)
? inter-switch links
? video streaming applications
? server to DAT backup drive links
? thin clients and their servers
? intra-building backbones
? network connected printers
Perrine. J 07/15/09 Page 8
9. Cisco 1 - Networking Basics Chapter 7
Which of the following has limited the bandwidth of fiber based Ethernet?
(Choose three.)
1. emitter technology
2. absolute fiber light-carrying capacities
3. theoretical limits of fiber capacity
4. fiber manufacturing processes
5. detector technology
6. angles and curves in the fiber run
Perrine. J 07/15/09 Page 9
10. Cisco 1 - Networking Basics Chapter 7
Which of the following has limited the bandwidth of fiber based Ethernet?
(Choose three.)
? emitter technology
? absolute fiber light-carrying capacities
? theoretical limits of fiber capacity
? fiber manufacturing processes
? detector technology
? angles and curves in the fiber run
Perrine. J 07/15/09 Page 10
11. Cisco 1 - Networking Basics Chapter 7
Why is the half-duplex operation undesirable for Gigabit Ethernet? (Choose
three.)
1. Gigabit Ethernet is inherently full-duplex.
2. Half-duplex operation reduces the effective cable lengths.
3. Half-duplex Gigabit Ethernet will need thicker cable for full operation
support.
4. Half-duplex Gigabit Ethernet requires native mode NRZ conversion.
5. Half-duplex operation introduces increased overhead by the carrier
extension.
6. Half-duplex requires the use of more expensive equipment with larger
sized buffers.
Perrine. J 07/15/09 Page 11
12. Cisco 1 - Networking Basics Chapter 7
Why is the half-duplex operation undesirable for Gigabit Ethernet? (Choose
three.)
? Gigabit Ethernet is inherently full-duplex.
? Half-duplex operation reduces the effective cable lengths.
? Half-duplex Gigabit Ethernet will need thicker cable for full operation
support.
? Half-duplex Gigabit Ethernet requires native mode NRZ conversion.
? Half-duplex operation introduces increased overhead by the
carrier extension.
? Half-duplex requires the use of more expensive equipment with larger
sized buffers.
Perrine. J 07/15/09 Page 12
13. Cisco 1 - Networking Basics Chapter 7
Which type of device could be used to interconnect a 1000BASE-T network to
a 100BASE-T network? (Choose two.)
1. multi-port hub
2. speed adapting repeater
3. Layer 2 bridge
4. repeating NIC
5. multi-port Layer 3 bridge
6. switch
Perrine. J 07/15/09 Page 13
14. Cisco 1 - Networking Basics Chapter 7
Which type of device could be used to interconnect a 1000BASE-T network to
a 100BASE-T network? (Choose two.)
? multi-port hub
? speed adapting repeater
? Layer 2 bridge
? repeating NIC
? multi-port Layer 3 bridge
? switch
Perrine. J 07/15/09 Page 14
15. Cisco 1 - Networking Basics Chapter 7
Gigabit Ethernet rapidly became the dominant technology for which
applications? (Choose three.)
1. general infrastructure needs
2. general client to server links
3. high-speed cross-connects
4. backbone installations
5. thick client connectivity
6. thin client connectivity
Perrine. J 07/15/09 Page 15
16. Cisco 1 - Networking Basics Chapter 7
Gigabit Ethernet rapidly became the dominant technology for which
applications? (Choose three.)
? general infrastructure needs
? general client to server links
? high-speed cross-connects
? backbone installations
? thick client connectivity
? thin client connectivity
Perrine. J 07/15/09 Page 16
19. Cisco 1 - Networking Basics Chapter 7
Which media types can be used in an implementation of a 10BASE-T network?
(Choose three.)
1. Category 5 UTP
2. Category 5e UTP
3. Category 3 UTP
4. coaxial cable
5. multi-mode fiber
6. single mode fiber
Perrine. J 07/15/09 Page 19
20. Cisco 1 - Networking Basics Chapter 7
Which media types can be used in an implementation of a 10BASE-T network?
(Choose three.)
? Category 5 UTP
? Category 5e UTP
? Category 3 UTP
? coaxial cable
? multi-mode fiber
? single mode fiber
Perrine. J 07/15/09 Page 20
21. Cisco 1 - Networking Basics Chapter 7
4D-PAM5 encoding method is used in which of the following Gigabit Ethernet?
1. 1000BASE-LX
2. 1000BASE-SX
3. 1000BASE-T
4. 1000BASE-CX
Perrine. J 07/15/09 Page 21
22. Cisco 1 - Networking Basics Chapter 7
4D-PAM5 encoding method is used in which of the following Gigabit Ethernet?
? 1000BASE-LX
? 1000BASE-SX
? 1000BASE-T
? 1000BASE-CX
Perrine. J 07/15/09 Page 22
23. Cisco 1 - Networking Basics Chapter 7
For a network manager planning the installation of a new network, which of the
following will be needed to implement a typical 10BASE-T network installation?
(Choose three.)
1. RJ-11
2. BNC connectors
3. RJ-48 patch cables
4. RJ-45 connectors
5. Category 5 UTP cables
6. hubs or switches
Perrine. J 07/15/09 Page 23
24. Cisco 1 - Networking Basics Chapter 7
For a network manager planning the installation of a new network, which of the
following will be needed to implement a typical 10BASE-T network installation?
(Choose three.)
? RJ-11
? BNC connectors
? RJ-48 patch cables
? RJ-45 connectors
? Category 5 UTP cables
? hubs or switches
Perrine. J 07/15/09 Page 24
25. Cisco 1 - Networking Basics Chapter 7
Which of the following were considered advantages of 10BASE5 networks?
(Choose two.)
1. easy to install
2. easy to find hardware
3. inexpensive
4. no configuration
Perrine. J 07/15/09 Page 25
26. Cisco 1 - Networking Basics Chapter 7
Which of the following were considered advantages of 10BASE5 networks?
(Choose two.)
? easy to install
? easy to find hardware
? inexpensive
? no configuration
Perrine. J 07/15/09 Page 26
27. Cisco 1 - Networking Basics Chapter 7
Which of the following Ethernet technologies share the same timing
parameters? (Choose three.)
1. 10BASE2
2. 10BASE5
3. 10BASE-T
4. 100BASE-TX
5. 100BASE-FX
6. 100BASE-RX
Perrine. J 07/15/09 Page 27
28. Cisco 1 - Networking Basics Chapter 7
Which of the following Ethernet technologies share the same timing
parameters? (Choose three.)
? 10BASE2
? 10BASE5
? 10BASE-T
? 100BASE-TX
? 100BASE-FX
? 100BASE-RX
Perrine. J 07/15/09 Page 28
29. Cisco 1 - Networking Basics Chapter 7
Which LX4 serial bit stream is used to support four-bit simultaneous
wavelengths?
1. WWDD
2. WWJD
3. WWDM
4. 4B/5B
5. 8B/10B
6. 64B/66B
Perrine. J 07/15/09 Page 29
30. Cisco 1 - Networking Basics Chapter 7
Which LX4 serial bit stream is used to support four-bit simultaneous
wavelengths?
? WWDD
? WWJD
? WWDM
? 4B/5B
? 8B/10B
? 64B/66B
Perrine. J 07/15/09 Page 30
31. Cisco 1 - Networking Basics Chapter 7
Which of the following is the line encoding conversion used by 1000BASE-X?
1. SRS
2. PCM
3. NZS
4. B8ZS
5. NRZ
6. ASCII
Perrine. J 07/15/09 Page 31
32. Cisco 1 - Networking Basics Chapter 7
Which of the following is the line encoding conversion used by 1000BASE-X?
? SRS
? PCM
? NZS
? B8ZS
? NRZ
? ASCII
Perrine. J 07/15/09 Page 32
33. Cisco 1 - Networking Basics Chapter 7
Which class of repeater changes between one Ethernet implementation and
another?
1. Class I
2. Class II
3. Class III
4. Class IV
5. Class V
Perrine. J 07/15/09 Page 33
34. Cisco 1 - Networking Basics Chapter 7
Which class of repeater changes between one Ethernet implementation and
another?
? Class I
? Class II
? Class III
? Class IV
? Class V
Perrine. J 07/15/09 Page 34
35. Cisco 1 - Networking Basics Chapter 7
What is the transmission medium for 1000BASE-SX?
1. Long-wave laser over single-mode and multimode fiber
2. Category 5 UTP copper wiring
3. Balanced, shielded, 150 ohm, two-pair STP copper cable
4. Short-wave laser over multimode fiber
Perrine. J 07/15/09 Page 35
36. Cisco 1 - Networking Basics Chapter 7
What is the transmission medium for 1000BASE-SX?
? Long-wave laser over single-mode and multimode fiber
? Category 5 UTP copper wiring
? Balanced, shielded, 150 ohm, two-pair STP copper cable
? Short-wave laser over multimode fiber
Perrine. J 07/15/09 Page 36
37. Cisco 1 - Networking Basics Chapter 7
What is the IEEE standard for 10-Gb Ethernet?
1. 802.3z
2. 802.3u
3. 802.3ae
4. 803.3
Perrine. J 07/15/09 Page 37
38. Cisco 1 - Networking Basics Chapter 7
What is the IEEE standard for 10-Gb Ethernet?
? 802.3z
? 802.3u
? 802.3ae
? 803.3
Perrine. J 07/15/09 Page 38