Chapter 5 Modern Ethernet 1. Which term refers to the 100-Mbps standards, even t
ID: 3850342 • Letter: C
Question
Chapter 5
Modern Ethernet
1. Which term refers to the 100-Mbps standards, even though there are now newer versions of Ethernet available?
A. Fast Ethernet
B. Gigabit Ethernet
C. Full-duplex Ethernet
D. Switched Ethernet
2. The specification for 100BaseTX (100BaseT) calls for UTP cabling using __________ or better rated cabling.
A. CAT 1
B. CAT 2
C. CAT 3
D. CAT 5
3. When a multispeed, auto-sensing 100BaseT NIC connects to a 10BaseT Ethernet hub, at what speed will the NIC function?
A. 10 Mbps sending, 100 Mbps receiving
B. 10 Mbps sending and receiving
C. 100 Mbps sending, 10 Mbps receiving
D. 100 Mbps sending and receiving
4. What is the physical limit to the number of nodes in every version of Ethernet?
A. 48
B. 256
C. 1024
D. 2048
5. What general type of cabling is a technician most likely to use today when installing Ethernet cabling in areas with high electrical interference?
A. Shielded twisted pair (STP)
B. Coaxial
C. Fiber-optic
D. Twinaxial copper
6. What type of fiber-optic cabling and connectors does a 100BaseFX network use?
A. Multimode with ST or SC connectors
B. Multimode with various connectors
C. Twinaxial with twinaxial connectors
D. Single-mode with various connectors
7. If you have a 100BaseT switched Ethernet network, what is the theoretical maximum bandwidth using full-duplex NICs?
A. 10 Mbps
B. 200 Mbps
C. 100 Mbps
D. 1000 Mbps
8. The NIC and the attached __________ determine full- or half-duplex during the auto-negotiation process.
A. repeater
B. amplifier
C. hub
D. switch
9. Which version of Gigabit Ethernet is published under the 802.3ab standard?
A. 1000BaseT
B. 1000BaseSX
C. 1000BaseCX
D. 1000BaseLX
10. Which version of Gigabit Ethernet is published under the 802.3z standard?
A. 1000BaseT
B. 1000BaseTX
C. 1000BaseCX
D. 10 GbE
11. Three versions of Gigabit Ethernet, published under the 802.3z standard, are known together as __________.
A. 1000BaseT
B. 1000BaseSX
C. 1000BaseX
D. 1000BaseLX
12. What is the maximum cable length on a segment of a 1000BaseT network?
A. 100 meters
B. 400 meters
C. 200 meters
D. 2000 meters
13. Which version of Gigabit Ethernet uses a unique cable known as twinaxial?
A. 1000BaseT
B. 1000BaseSX
C. 1000BaseCX
D. 1000BaseLX
14. What version of Gigabit Ethernet is being positioned as the Ethernet backbone of the future?
A. 1000BaseT
B. 1000BaseSX
C. 1000BaseX
D. 1000BaseLX
15. Of all the Gigabit Ethernet IEEE standards detailed in the chapter, which one maintains a signal over the greatest distance?
A. 1000BaseT
B. 1000BaseLX
C. 1000BaseCX
D. 1000BaseSX
16. What is the most common connector used in a 1000BaseSX network?
A. RJ-45
B. SC
C. LC
D. RJ-11
17. Which wavelength is used by 1000BaseLX fiber-optic cabling?
A. 5 km
B. 850 nm
C. 1300 nm
D. 100 meters
18. What type of fiber-optic cable is used in a 1000BaseLX network?
A. Twinaxial
B. Single-mode fiber
C. Multimode
D. CAT 6
19. Which switch and network equipment modular connectors have replaced gigabit interface converters (GBICs) as the modular connector of choice?
A. Small form-factor pluggable (SFP)
B. Ultra Physical Contact (UPC)
C. Angled Physical Contact (APC)
D. Flat-surface
20. Which 10 GbE standard features a multimode fiber type?
A. 10GBaseSR
B. 10GBaseER
C. 10GBaseLR
D. 10GBaseEW
21. What wavelength is used on 10GBaseSW fiber-optic cabling?
A. 1310
B. 850
C. 1300
D. 1550
22. The “W” in the standard 10GBaseSW stands for which type of signaling?
A. LAN
B. SONET/WAN
C. Wireless
D. Radio
23. The “R” in the standard 10GBaseSR stands for which type of signaling?
A. LAN
B. SONET/WAN
C. Wireless
D. Radio
24. Which very high-speed fiber network was already in place before the IEEE developed the 10 GbE Ethernet standards?
A. The Internet
B. 10GBaseT
C. 100BaseT
D. SONET
25. What wavelength is used on a 10GBaseSR network?
A. 850 nm
B. 1300 nm
C. 1310 nm
D. 1500 nm
26. What wavelength is used on a 10GBaseEy network?
A. 1310
B. 1300
C. 1550
D. 850
27. Which is the least expensive and most popular 10 GbE media type?
A. 10GBaseSR
B. 10GBaseLW
C. 10GBaseSW
D. 10GBaseLR
28. Which wavelength is used on 10GBaseLW fiber-optic cabling?
A. 1310
B. 1300
C. 1550
D. 850
29. Manufacturers have accommodated the need for switches to connect to a variety of 10 GbE connector types by devising which solution?
A. SC connectors
B. Multisource agreements (MSAs)
C. ST connectors
D. Twinaxial cable
30. 10 GbE equipment is currently being used mostly on __________.
A. small networks
B. big-pipe Internet connections
C. virtual private networks
D. SONET
Explanation / Answer
1. (A) Fast Ethernet
100 mbps net will be referred as fast Ethernet.
2. (D) CAT 5
3. B. 10 Mbps sending and receiving
Because it connects to the 10BaseT Ethernet hub it can work with the speed of 10 MBPS only.
4. C. 1024
It is a standard that no more than 1024 nodes are allowed.
5. C. Fibre optic.
Fibre optic cable is used to transmit signals. It is surrounded with many plastic layers in the form of tube. So it doesn't get interfere with electric signals.
6. A. Multimode with ST or SC connectors
7. B. 200 MBPS
8.D.SWITCH
9. A. 1000BaseT
10. C. 1000BaseCX
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