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45 Cards in this Set
- Front
- Back
Name 7 layers of OSI model |
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Name the 4 TCP/IP layers |
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Name 3 basic forms of physical media |
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Name 2 forms of signaling in the physical layer |
Asynchronous: Data signals are transmitted without an associated clock signal. Synchronous: Data signals are sent along with a clock signal which occurs at evenly spaced time durations referred to as the bit time. |
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Why do networks use copper cabling? |
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What is copper cabling limited to? |
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Name 2 forms of electrical interference copper cable is susceptible to |
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How can you reduce electrical noise on copper cabling |
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Name 3 types of copper cabling |
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The new ethernet 10Gb standard uses this form of copper media |
STP |
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Which copper cabling attaches antennas to wireless devices? |
Coaxial copper cabling |
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Which copper cabling counters EMI and RFI by using shielding techniques and special connectors? |
STP |
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What is the most common network media? |
UTP |
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Which copper cabling terminates with BNC, N-type and F-type connectors? |
Coaxial |
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How many pairs of wires does a UTP have? |
4 |
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UTP cable does not use shielding to counter the effects of EMI andRFI. Instead, cable designers have discovered that they can limit thenegative effect of crosstalk by... |
Cancellation - wires are pairedin a circuit. When two wires in an electrical circuit are placed close together, their magnetic fields are the exact opposite of each other. Therefore, the two magnetic fields cancel each other out and also cancel out any outside EMI and RFI signals.
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What is category 3 (UTP) cabling used for? |
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Supported speeds of Cat 5 and 5e (UTP) |
Cat 5 = 100Mb/s Cat5e = 1000Mb/s |
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Supported speeds of Cat 6 (UTP) |
1000Mb/s to 10Gb/s |
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What standards describes the wire color codes to pin assignments (pinouts) for Ethernet cables. |
TIA/EIA 568 standard |
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What type of ethernet cable is commonly used to interconnect a host to a switch and a switchto a router. |
Straight through (Both ends 568A or 568B) |
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What type of ethernet cable is used to connect similar devices together? |
Crossover cable (Different ends - one end 568A, other 568B) |
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A Cisco proprietary cable used to connect to a router or switchconsole port. |
Rollover cable |
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After installation, a UTP cable tester should be used to test for the following parameters: |
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Cable colours on 568A standard |
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Cable colours on 568B standard |
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Name 5 components in a fiber optic cable |
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Name 2 types of fibre optic cables |
Single-mode fibre (SMF) - Smaller Core, uses laser technology to send a single ray of light Multi-mode Fibre (MMF) - Larger Core, users LED at different angles. Popular in LANs. It provides bandwidth up to 10 Gb/s over link lengths of up to 550 meters. |
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What is the bandwidth and link lengths of a Multi Mode Fibre optic cable (MMF) ? |
Up to 10Gb/s Up to 550 meters |
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Name the three most popular network fiber-optic connectors |
Straight-tip (ST) Subscriber Connector (SC) Lucent Connector (LC) |
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Three common types of fiber-optic termination and splicing errorsare: |
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What device can be used to test fiber optic cable? |
An Optical Time Domain Reflectometer (OTDR) can be used to test each fiber-optic cable segment. |
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What concerns does wireless networking have? |
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3 common data communications standards that apply to wirelessmedia are |
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Name 6 Wireless 802.11 standards |
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What speeds and distance does 802.15 (Bluetooth) support? |
3 Mb/s 100 meters |
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What speeds does 802.16 support |
1 Gb/s |
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The data link layer performs these two basic services: |
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The data link layer is actually divided into two sublayers |
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What does the Logical Link Control (LLC) sub layer do? |
The LLC sublayer handles:
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What is included in a data link frame? |
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LANand WAN topologies can be viewed in two ways: |
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Name 3 WAN physical topologies |
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Name 4 physical LAN topologies |
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Name 2basic media access control methods for shared media |
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