NETWORK+ CABLES Flashcards
CAT 3 CABLE SPEED
16 MBPS
CAT 4 CABLE SPEED
20 MBPS
CAT 5 CABLE SPEED
100 MBPS
CAT 5e CABLE SPEED
1000 MBPS
CAT 6 CABLE SPEED
10/100/1000 MBPS plus 10GBPS
CAT 6a CABLE SPEED
10 GBPS and beyond networking
Data-grade cable that can transmit data up to 10Mbps with a possible bandwidth of 16MHz. For many years,
CATEGORY 3
Data-grade cable that has potential data throughput of
16Mbps
CAT 4
Data-grade cable that typically was used with Fast Ethernet
operating at 100Mbps with a transmission range of 100 meters.
CAT 5
Data-grade cable used on networks that run at
10/100Mbps and even up to 1000Mbps.
CAT 5e
High-performance UTP cable that can transmit data up to
10Gbps. Category 6 has a minimum of 250MHz of bandwidth and spec-
ifies cable lengths up to 100 meters with 10/100/1000Mbps transfer,
along with 10Gbps over shorter distances.
CAT 6
Used to generate low-power video connections. The ______ cable
cannot be used over long distances because of its high-frequency
power losses. In such cases, RG-6 cables are used instead.
RG-59 /U
Has a solid copper core. Used for radio communication and thin
Ethernet (10Base2).
RG-58 /U
Has a stranded wire core. Used for radio communication and thin
Ethernet (10Base2).
RG-58 A/U
Used for military specifications
RG-58 C/U
Often used for cable TV and cable modems.
RG-6
associated with coaxial media and 10Base2 networks.
BNC CONNECTORS
uses a half-twist
bayonet type of
lock
ST CONNECTOR
uses a push-pull connector similar to common audio and video plugs and sockets
SC CONNECTOR
flange on top, similar
to an RJ-45 connector,
that aids secure
connection.
LC CONNECTOR
a popular
connector for two
fibers in a very
small form factor.
MT-RJ CONNECTOR
standard for serial trans-
mission between computers and peripheral devices such as modems, mice, and
keyboards
RS-232
a Cisco proprietary cable used to connect a computer system to a router or switch console port. resembles an
Ethernet UTP cable; however, it is not possible to use it on anything but
Cisco equipment.
rollover cable
also known as a plug, is used to test and isolate network problems. If made correctly, the ___ ___ causes the link light on a device such as a network interface card (NIC) to come on. This is a quick and cheap way to test simple network cabling problems.
loopback cable
Connects client systems to the network.
Horizontal cabling:
Runs between floors to connect different
locations on the network.
Vertical (backbone) cabling
The location where outside cables
enter the building for distribution. This can include Internet and phone
cabling.
Vertical or main cross-connect
The location where the vertical and hori-
zontal connections meet.
Horizontal cross-connect
Typically used in larger networks.
Provides an intermediate cross-connect between the main and horizon-
tal cross-connects.
Intermediate cross-connect:
a
freestanding or wall-mounted unit with a number of RJ-45 port connections
on the front. In a way, it looks like a wall-mounted hub without the light-
emitting diodes (LEDs).
patch panel
acts as a translator between the LAN data format and the WAN data format. Such a conversion is necessary because the technologies used on WAN links are different from
those used on LANs.
Channel Service Unit/Data Service Unit (CSU/DSU)
Internetworking
802.1
The LLC (Logical Link Control) sublayer
802.2
CSMA/CD (Carrier Sense Multiple Access with Collision Detection) for Ethernet networks
802.3
A token-passing bus
802.4
Token ring networks
802.5
Metropolitan area network (MAN)
802.6
Broadband Technical Advisory Group
802.7
Fiber-Optic Technical Advisory Group
802.8
Integrated voice and data networks
802.9
Standards for Interoperable LAN/MAN Security (SILS) (network security)
802.10
Wireless networks
802.11
100Mbps technologies, including 100BaseVG-AnyLAN
802.12
1. You troubleshoot a network using 1000BaseCX cable, and you suspect that the maximum length has been exceeded. What is the maximum length of 1000BaseCX cable? ❍ A. 1,000 meters ❍ B. 100 meters ❍ C. 25 meters ❍ D. 10,000 meters
- C. The 1000BaseCX standard specifies Gigabit Ethernet transfer over Category 5 UTP cable. It uses STP twisted-pair cable and has a 25-meter length restriction.
2. Which of the following 10 Gigabit Ethernet standards has the greatest maximum transmission distance? ❍ A. 10GBaseSR ❍ B. 10GBaseER ❍ C. 10GBaseLR ❍ D. 10GBaseXR
- B. The 10GBaseER standard specifies a maximum transmission distance of 40,000 meters. The 10GBaseSR standard specifies a maximum transmission distance of 300 meters, whereas 10GBaseLR specifies a maximum transmission distance of 10,000 meters. 10GBaseXR is not a recognized 10 Gigabit Ethernet standard.
3. Your manager has asked you to specify a high-speed 10GbE link to provide con- nectivity between two buildings 3km from each other. Which of the following IEEE standards are you likely to recommend? ❍ A. 10GBaseLR ❍ B. 10GBaseSR ❍ C. 10GBaseT4 ❍ D. 10GBaseFL
- A. 10GBaseLR can be used over distances up to 10km. 10GBaseSR can only be used up to a maximum distance of 300 meters. 10GBaseT4 and 10GBaseFL are not recognized 10-Gigabit Ethernet standards.
4. In a 100BaseTX network environment, what is the maximum distance between the device and the networking equipment, assuming that no repeaters are used? ❍ A. 1,000 meters ❍ B. 100 meters ❍ C. 500 meters ❍ D. 185 meters
- B. 100BaseT networks use UTP cabling, which has a maximum cable length of 100 meters. Answer A is incorrect because this distance could be achieved only with UTP cabling by using repeaters. Answer C specifies the maximum cable length for 10Base5 networks. Answer D specifies the maximum cable length for 10Base2 networks.
re not used over multimode fiber. Instead, they offer greater distances using single-mode fiber. Both the LR and LW standards are designed to be used over long-wavelength single-mode fiber, giving it a potential transmission range of anywhere from 2 meters to 10 kilometers.
10GBaseLR/LW
When it comes to WANs that require greater transmission distances, the Ethernet _______ standards come into play
10GBaseER/EW
A type of bayonet connector used on
RG-58 coaxial cables
BNC connector
Long the standard for telephone communications, _____ cables
were used by the first UTP-based Ethernet networks (called 10Base-T). _____ cables
supported frequencies up to 16 megahertz (MHz).
Category 3 (CAT3)
Designed for 100Base-TX Fast Ethernet networks and supporting
frequencies up to 100 MHz, _____ cabling was dropped from the latest version of the
TIA/EIA cabling standards
Category 5 (CAT5)
Still rated for frequencies up to 100 MHz, ____ cable is designed to support full duplex transmissions over all four wire pairs, as on 1000Base-T Gigabit Ethernet networks. The standard calls for increased resistance to Near-End Crosstalk (NEXT) and Return Loss (RL) and also adds testing requirements for Power Sum Near-End Crosstalk (PS-NEXT), Equal-Level Far-End Crosstalk (EL-FEXT), and Power Sum Equal-Level Far-End Crosstalk (PS-ELFEXT).
Category 5e (CAT5e)
Designed to support frequencies of up to 250 MHz, ____ cables easily handle 1000Base-T Gigabit Ethernet traffic and, with special installation considerations, 10Gbase-T
Category 6 (CAT6
Created for 10Gbase-T installations with cable segments up to 100 meters long, CAT6a supports frequencies up to 500 MHz and includes an Alien Crosstalk (AXT) testing requirement. ____ cables use larger conductors and leave more space between the wire pairs, meaning that the outside diameter of the sheath is larger than a CAT6 cable, about 0.29 to 0.35 inches. ____ was added to the most recent version of the TIA/EIA standards in 2008.
Augmented Category 6 (CAT6a)
The five types of fiber connectors are:
ST, SC, LC, MT-RJ
