CompTIA Network+ N10-008 CH4 - Course Quiz
10GBase-SR (Short Range) Ethernet uses an 850nm wavelength over multimode fiber. It’s optimized for short-distance, high-speed communication in data centers and LAN environments.
What wavelength is used on 10GBase-SR Network?
1300nm
1310nm
1500nm
850nm
850nm
Key Terms
What wavelength is used on 10GBase-SR Network?
1300nm
1310nm
1500nm
850nm
850nm
The older ______ connector left a little gap between the connection points due to imperfections in the glass?
angled physical contact (APC)
flat-surface connector
physical contact (PC)
ultra-physical contact (UPC)
flat-surface connector
The “R” in the standard 10GBase-SR stands for which type of singnalling?
Radio
SONET/WAN
Wireless
LAN
LAN
The ______ version of Gigabit Ethernet, published under the 802.3z standard, is divided into a series of standards, with names such as 1000Base-SX and 1000Base-LX?
1000Base-LX
1000Base-X
1000Base-T
1000Base-SX
1000Base-X
Which wavelength is used on 10GBase-LW Fiber-Optic cabling?
1310nm
1550nm
850nm
1300nm
1310nm
The vast majority of Network rollouts in offices use 1000Base-T connections, or _______, as you’ll hear them called?
drops
links
linkages
points
drops
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| Term | Definition |
|---|---|
What wavelength is used on 10GBase-SR Network? 1300nm | 850nm |
The older ______ connector left a little gap between the connection points due to imperfections in the glass? angled physical contact (APC) | flat-surface connector |
The “R” in the standard 10GBase-SR stands for which type of singnalling? Radio | LAN |
The ______ version of Gigabit Ethernet, published under the 802.3z standard, is divided into a series of standards, with names such as 1000Base-SX and 1000Base-LX? 1000Base-LX | 1000Base-X |
Which wavelength is used on 10GBase-LW Fiber-Optic cabling? 1310nm | 1310nm |
The vast majority of Network rollouts in offices use 1000Base-T connections, or _______, as you’ll hear them called? drops | drops |
The specs for 100Base-T calls for UTP cabling using _______ or better rated cabling? Cat 2 | Cat 5 |
Which term refers to 100-Mbps standards, even though there are now much faster versions of Ethernet available? full-duplex Ethernet | Fast Ethernet |
All NICs today run at half-duplex? True | False |
Manufacturers have accomodated the need for Switches to connect to a variety of 10GbE Connector types by devising which concept? Multisource Agreements (MSAs) | Multisource Agreements (MSAs) |
1000Base-LX connectors look similar to 1000Base-SX connectors? True | True |
With _________, you can get multiple signals to flow over the same wire at the same time, modulating to higher frequencies? core-band | broadband |
With full-duplex, a NIC can send and receive data at the same time? True | True |
All modern NICs are multispeed and auto-sensing? True | True |
The Ethernet community would like to position 1000Base-SX as the Ethernet backbone of the future? True | False |
Describe the 3 key reasons UTP Cabling cannot meet the needs of every organization? | Distance - Limited to 100 meters. |
Compare 10GBase-T to earlier, slower versions of UTP Ethernet? | Looks and works exactly like the slower versions of UTP Ethernet |
What does it mean to be a half-duplex mode NIC? | The NIC is capable of only Sending OR Receiving data at a time. |
Even though Fast Ethernet is no longer implemented for new installation, explains why you may still see it in operation today? | It’s still solid for Simple Networks where you share small amounts of data, like documents or spreadsheets. |
Describe the problems that begin to surface with ST and SC connectors around the time that Gigabit Ethernet first started to appear? | First - ST Connectors are relatively large, twist-on connectors, requiring the installer to twist the cable when inserting or removing it. Also, big-fingered techs had issues with ST connectors if the connectors are too closerly packed, they can’t get their fingers around them. |
The vast majority of Network rollouts in offices use ________ connections (or drops, as you’ll hear them called)? | 1000Base-T |
The version of GbE published under the IEEE _______ standard is known as 1000Base-X, and is divided into a series of stnadards, with names such as 1000Base-SX and 1000Base-LX? | 802.3z |
The IEEE has approved 2 different versions of Gigabit Ethernet: 1000Base-T and __________? | 1000Base-X |
Early 100Base-T NICs, just like 10Base-T NICs, could send and receive data, but not at the same time is a feature called _________? | half-duplex |
A 100Base-FX Network has a max cable run distance of _ kilometers? | 2 |
In 100Base-T, what is the max number of Nodes Per Hub/Switch? 2048 | 1024 |
Full-duplex Ethernet directly increases Network speed? True | False |
Which modular transceivers have replaced gigabit interface converters (GBICs) as the modular transciever of choice? small form-factor pluggable (SFP) | small form-factor pluggable (SFP) |
Which version of Gigabit Ethernet is published under the 802.3ab Standard? 1000Base-T | 1000Base-T |
What is the most common connector used in 1000Base-SX Network? LC | LC |
Which wavelength is used by 1000Base-LX fiber-optic cabling? 5km | 1300nm |
A connection created using angled physical contact (APC) connectors degrades from multiple insertions? True | False |
The NIC and the attached determine full-or half-duplex during the auto-negotiation process? Switch | Switch |
The Mechanical Transfer Registered Jack (MT-RJ) is a type of small form factor (SFF) Connector? True | True |
Of all the Gigabit Ethernet IEEE Standards detailed in the chapter, which one maintains a signal over the greatest distance? 1000Base-T | 1000Base-LX |
What type of fiber-optic cabling and connectors does a 100Base-FX Network use? multimode with ST or SC connectors | multimode with ST or SC connectors |
What is the least expensive and most popular 10 GbE media type? 10GBase-LR | 10GBase-LR |
Describe the characteristics of 10GBase-EW standard, including Fiber Type, Wavelength, Physical Layer Signalling, and Max Signal Length? | Fiber Type = Single-Mode |
Discuss what emerged when the time came to come up with a new standard to replace 10Base-T? | Network hardware makers forwarded a large number of potential standards, all focused on the prize of leading the new Ethernet standard. As a result, two twisted-pair Ethernet standards appeared: 100BASE-T4 and 100BASE-TX. 100BASE-T4 used Cat 3 cable, whereas 100BASE-TX used Cat 5 and Cat 5e. By the late 1990s, 100BASE-TX became the dominant 100-megabit Ethernet standard. 100BASE-T4 disappeared from the market and today has been forgotten. As a result, we never say 100BASE-TX, simply choosing to use the term 100BASE-T. |
How could one distinguish a 10Base-T NIC from a 100Base-T NIC? | You had to look for something on the Card to tell you its speed. |
Describe the Cabling used for 1000Base-SX Standard. Include the Cable Length Limits, Signaling, and Wavelength? | Cable Length = 220 to 500m |
The Gigabit Ethernet standard 1000Base-X is divided into a series of standards, with names such as and _? | 1000Base-SX | 1000Base-LX |
Most 10 GbE BiDi Transceivers use SFP+ connectors; however, 40 GbE BiDi Transceivers use optics? | QSFP (Quad Small Form-Factor Pluggable) |
1000Base-SX uses __ to transmit light on the fiber-optic cable? | LED (Light Emitting Diode) |
Which 10 GbE standard features a Multimode Fiber Type? 10GBase-LW | 10GBase-SR |
The different colors of Laser Signals transmitted over Fiber-Optic cables feature different ? speeds | wavelengths |
What is the max cable length of a segment of a 1000Base-T Network? 2000m | 100m |
Which very high-speed Fiber Network was already in place and being used for Wide Area Networking (WAN) Transmissions before the IEEE developed 10GbE Ethernet Standards? 100Base-T | SONET |
Twisting fiber-optic cables when inserting or removing them is a cable-safe and popular action? True | False |
Discuss the Factors defined in the 10 GbE Standards without giving specific names of the standards and their parameters? | The Type of Fiber Used, the Wavelength of the Laser or Lasers, the Physical Layer Signaling Type, and Max Signal Distance. |
Describe what all types of 10 GbE equipment have in common, and how they may physically differ? | All types of 10 GbE send and receive the same signal, only the physical medium is different. |
Briefly explain how one can extend 1000Base-LX from a max distance of 5km to 70km? | By using Special Repeaters |
Explain why Fiber equipment may have different connectors - even nonstandard ones? | Because the fiber industry has no standard for connectors beyond ST and SC. |
With many Gigabit Ethernet Switches and other hardware, you can simply pull out a transceiver - the connecting module, commonly referred to as an _ - that supports one flavor of Gigabit Ethernet and plug in another? | optic |
_ uses four-pair UTP or STP cabling to achieve Gigabit performance? | 1000Base-T |
You can use dedicated to connect any type of Ethernet cabling together? | media converters |