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Network + Section 2
Network + 2.1 - 2.8
148
Computer Networking
Professional
04/17/2011

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Cards

Term
What does EIA stand for?What is the common
Definition
Electronic Industries Alliance
Term
What do EIA standards start with?
Definition
RS- or EIA#
Term
What does TIA stand for?
Definition
Telecommunications Industry Association
Term
What is the numerical designation for the Commercial Building Telecommunications Cabling Standard?
Definition
ANSI/TIA/EIA - 568
Term
What is Balanced pair operation?
Definition
Two wires with equal and opposite signals
Term
What is the advantage to using shielded cabling?
Definition
It prevents interference
Term
What does shielded cabling require to function properly?
Definition
An electrical ground
Term
What type of cabling is most common?
Definition
UTP
Term
What is the maximum speed that Cat 3 supports?
Definition
10 Mbits/s
Term
What is the maximum speed that Cat 5 supports?
Definition
100 Mbits/s
Term
What is the maximum speed that Cat 5e supports?
Definition
1 Gbits/s
Term
What is the maximum speed that Cat 6 supports?
Definition
10 Gbits/s
Term
How far can cat 6 cable carry data at 10 Gbits/s?
Definition
55m
Term
What is the advantage to cat 6a cable over cat 6 cable?
Definition
Cat 6a carries 10 Gbit/s over 100m
Term
What are Plenum cables used for?
Definition
Running cables in heating and air conditioning ducts
Term
What are riser cables used for?
Definition
Running cables between floors
Term
What two things can make up the cable jackets on plenum cables?
Definition
PVC and FEP
Term
What types of networks use Coaxial cable?
Definition
10Base5 (Thicknet) and 10Base2 (Thinnet)
Term
How do serial cables transfer data?
Definition
One bit at a time
Term
What has replaced serial ports?
Definition
USB
Term
What are the fibers in Fiber Optic cables made of?
Definition
Glass or Plastic
Term
How do fiber optic cables carry data?
Definition
Light
Term
What are the two types of fiber optic cable?
Definition
Multi mode and single mode
Term
Which type of fiber optic cable is used for long distances?
Definition
Single Mode
Term
What is a major concern when ordering fiber optic cable?
Definition
What type of connector it uses
Term
What is frequency measured in?
Definition
Cycles/second (MHz or GHz)
Term
What are Transmission Speeds or throughput measured in?
Definition
Mbits/s
Term
What is the speed range of coaxial cabling?
Definition
1 Mbits/s - 10 Mbits/s
Term
What are the speeds of Fiber Optic cabling?
Definition
10 Gbits/s and beyond
Term
What is the maximum distance for Multi Mode Fiber optic cabling?
Definition
550m
Term
What is the maximum distance for single mode fiber optic cabling?
Definition
5 Km
Term
What are the properties of half duplex technology?
Definition
One side speaks at a time
Term
What are the properties of full duplex technology?
Definition
Both sides may speak and listen simultaneously
Term
Which is more efficient, half duplex or full duplex?
Definition
Full duplex
Term
Besides speed, what is a major advantage to fiber optic cabling?
Definition
It isnt subject to interference
Term
What is the security advantage to fiber optic cable over copper cables?
Definition
Fiber optic cables can't be tapped
Term
What does RS-232 stand for?
Definition
Recommended Standard - 232
Term
Which standard was developed in 1969?
Definition
RS-232
Term
What are RS-232 connections commonly used for now?
Definition
Configuration ports
Term
What type of ethernet network uses a BNC connector?
Definition
10Base2 Thinnet (Coaxial)
Term
What does RJ stand for?
Definition
Registered Jack
Term
What type of connector has 6 positions, 4 conductors, and is used for modular telephone connections?
Definition
RJ-11
Term
What type of cable connector has 8 positions, 8 conductors and is used for ethernet?
Definition
RJ-45
Term
What does ST stand for?
Definition
Straight Tip
Term
What does SC stand for?
Definition
Siemon Connector
Term
What type of fiber optic cable was an improvement over ST and SC because it was smaller?
Definition
LC
Term
What fiber optic connector is common now, and utilizes a small connector?
Definition
MT-RJ
Term
What is a common network topology in which all devices are connected to a central device?
Definition
Star
Term
What expensive and complex network topology features multiple lines to the same place which give you redundancy, fault tolerance, and load blancing?
Definition
Mesh
Term
What network topology utilized a central line that all users connected to?
Definition
Bus
Term
What network topology allows one break in the link to take down the entire network?
Definition
Bus
Term
What network topology has built in fault tolerance and allows traffic to flow in both directions?
Definition
Ring
Term
What network topology is a one to one connection?
Definition
Point to Point
Term
What type of network topology is extremely common and is the way wireless networks operate?
Definition
Point to multipoint
Term
Most networks are a ___________ of more than one topology.
Definition
Hybrid
Term
What are the two standards for terminating 8P8C cables?
Definition
568A and 568B
Term
Which standard for terminating 8P8C cables is the most common?
Definition
568B
Term
What is the difference between the 568A and 568B standard?
Definition
What color connectors go to what positions
Term
What type of ethernet cable allows you to connect devices directly together without a hub or switch?
Definition
Crossover Cable
Term
How is a crossover cable wired?
Definition
The transmits on one end are wired to the receives on the other end and vice versa
Term
What type of cable allows you to go from a RJ-45 to Serial connection?
Definition
Rollover Cable
Term
Who invented the rollover cable?
Definition
Cisco
Term
What are loopback plugs used for?
Definition
To test physical ports
Term
What is a major drawback to circuit switched WAN technologies?
Definition
Innefficeint use of resources; unused connections cannot be shared
Term
What does POTS stand for? What type of WAN technology is it?
Definition
Plain Old Telephone Service; Circuit Switched
Term
What does PSTN stand for?
Definition
Public Switched Telephone Network
Term
What is the PTSN?
Definition
Internet for phones
Term
What is the logical bit pattern used on a physical T1 link?
Definition
DS-1
Term
How many channels and bit rate per channel does T1 consist of?
Definition
24 64Kbit/s channels
Term
What is the total throughput of a T1 line?
Definition
1.536 Mbit/s
Term
What is the standard used everywhere except North America and Japan that expanded on the T1 standard?
Definition
E-1
Term
How many channels at what bit rate does the E-1 standard consist of?
Definition
32 64 Kbit/s channels
Term
What is the total throughput of an E-1 line?
Definition
2.048 Mbit/s
Term
T-3 is equivalent to how many T-1 signals?
Definition
28
Term
What is the maximum throughput of a T-3 line?
Definition
44.736 Mbit/s
Term
What type of cable and connector does T-3 use?
Definition
Coaxial cable with BNC connector
Term
How many E-1 lines does an E-3 line consist of?
Definition
15
Term
What is the maximum throughput of an E-3 line?
Definition
34.368 Mbit/s
Term
What does ISDN? stand for?
Definition
Integrated Services Digital Network
Term
What does BRI stand for?
Definition
Basic Rate Interface
Term
What does BRI consist of?
Definition
2 64 Kbit/s bearer channels and 1 16 Kbit/s signaling channel
Term
What is the maximum throughput of ISDN?
Definition
128 Kbit/s
Term
What does PRI stand for?
Definition
Primary Rate Interface
Term
How is ISDN commonly used?
Definition
For connectivity from the PTSN to large phone systems
Term
How is PRI normally delivered?
Definition
Over a T-1 or E-1 line
Term
How are packet switched WAN technologies more efficient than circuit switched WAN technologies?
Definition
The media is usually shared between multiple users
Term
What does SONET stand for?
Definition
Synchronous Optical Networking
Term
What is SONET?
Definition
A transport protocol for multiplexing many data streams over one fiber
Term
What does ATM stand for?
Definition
Asynchronous Transfer Mode
Term
What size cells does ATM use?
Definition
53 Bytes
Term
What is the makeup of ATM cells?
Definition
48 Bytes for data, and 5 Bytes for a routing header
Term
What is the the throughput of the OC-1 Optical carrier level?
Definition
51,840 Kbit/s
Term
What is the the throughput of the OC-3 Optical carrier level?
Definition
155,520 Kbit/s
Term
What is the the throughput of the OC-12 Optical carrier level?
Definition
622,080 Kbit/s
Term
What is the the throughput of the OC-48 Optical carrier level?
Definition
2,488,320 Kbit/s
Term
How do you figure out the throughput of any OC Optical carrier level?
Definition
Take the number and multiply by 51,840 Kbit/s
Term
What does ADSL stand for?
Definition
Asymmetric Digital Subscriber Line
Term
Why is ADSL considered Asymmetric?
Definition
Because the download speed is faster than the upload speed
Term
What is the download and upload speed of ADSL?
Definition
24 Mbit/s download, 3.5 Mbit/s upload
Term
What is the approximate longest distance from the central office you may be when using ADSL?
Definition
10,000 ft.
Term
What does SDSL stand for?
Definition
Symmetric Digital Subscriber Line
Term
What does VDSL stand for?
Definition
Very High Bit rate digital subscriber line
Term
What is the throughput range for VDSL?
Definition
4 Mbit/s - 100 Mbit/s
Term
What was one of the first cost effective packet switching WAN technologies?
Definition
Frame Relay
Term
What is the throughput range for frame relay?
Definition
64 Kbit/s - 44.736 Mbit/s
Term
What does MPLS stand for?
Definition
Multiprotocol Label Switching
Term
What is the protocol for data transfer over cable modems?
Definition
DOCSIS
Term
What does DOCSIS stand for?
Definition
Data over cable service interface specification
Term
What is the speed range for Cable modems?
Definition
4 Mbit/s - 100 Mbit/s
Term
What are the properties of Sattelite connections?
Definition
Long latency, speeds up to 5 Mbit/s
Term
What does CSMA/CD stand for?
Definition
Collision Sense Multiple Access/Collision Detection
Term
What is a collision?
Definition
When two stations are talking at once in a half duplex setup
Term
A single frame that is destined for every device on the network is called a ____________.
Definition
Broadcast
Term
Combining physical lines to make a faster logical connection is known as _________.
Definition
Bonding
Term
In 10BASET, what does BASE mean?
Definition
Baseband, a single frequency utilizing the entire medium
Term
In 10BASET, what does T mean?
Definition
Twisted pair
Term
What is the speed, maximum distance, and cable type of the 10BASET standard?
Definition
10 Mbit/s, 100m, over Cat 3 or better Twisted pair.
Term
What is the speed, maximum distance, and cable type of the 100BASETX standard?
Definition
100 Mbit/s, 100m, over Cat 5 or better Twisted pair
Term
What is the maximum distances for 100BASEFX over multimode fiber?
Definition
400m in half duplex mode, and 2Km in full duplex mode
Term
What is the maximum distances for 100BASEFX over single mode fiber?
Definition
Greater than 2 Km
Term
What is the speed and cable type of the 1000BASET standard?
Definition
1 Gbit/s, over Cat 5e or Cat 6 Twisted Pair cable
Term
What is the speed, maximum distance, and cable type of the 1000BASELX standard?
Definition
1 Gbit/s, over 5 Km, over Fiber optic cable
Term
What is the speed, maximum distance, and cable type of the 1000BASESX standard?
Definition
1 Gbit/s, 550m, Over Fiber
Term
What is the speed, maximum distance, and cable type of the 10GBASE-SR standard?
Definition
10 Gbit/s, 300m, over multi mode fiber
Term
What is the speed, maximum distance, and cable type of the 10GBASE-LR standard?
Definition
10 Gbit/s, 10 Km - 25 Km, over single mode fiber
Term
What is the speed, maximum distance, and cable type of the 10GBASE-ER standard?
Definition
10 Gbit/s, 40 Km, over single mode fiber
Term
What is the maximum distance for 10GBASE-T over Cat 6 cable?
Definition
55m
Term
What is the maximum distance for 10GBASE-T over Cat 6a cable?
Definition
100m
Term
What is the logical network topology that is one of the most common forms of networking, which involves 1 client talking to 1 server?
Definition
Client/Server
Term
What is the logical network topology in which all devices are both a client and a server?
Definition
Peer to Peer
Term
What does a VPN allow you to do?
Definition
Connect to a remote private network through an existing public network (i.e the Internet)
Term
What allows devices to be on the same subnet even if they are in different physical locations?
Definition
VLAN
Term
What does MDF stand for?
Definition
Main distribution frame
Term
What distribution frame is considered the core of your network?
Definition
MDF
Term
Which distribution frame generally includes centralized services?
Definition
MDF
Term
What does IDF stand for?
Definition
Intermediate Distribution Frame
Term
What distribution frame provides end user connectivity and is usually in remote closets?
Definition
IDF
Term
What do we use to connect the MDF and the IDF?
Definition
A high speed link
Term
Which type of punch down block is often preferred?
Definition
110 Block
Term
What are the 2 types of cross connects?
Definition
Vertical and Horizontal cross connects
Term
What do we call the connection between the IDF and servers or workstations?
Definition
Horizontal Cross Connect
Term
What do we call the connection between the MDF and IDF?
Definition
Vertical Cross Connect
Term
What type of cable is used for vertical cross connects?
Definition
High Density cable
Term
What is a demarcation point?
Definition
The handoff between you and the phone company
Term
What is another name for the Demarcation point?
Definition
Minimum Point of Entry (MPoE)
Term
What is another name for the smart jack?
Definition
Network Interface Unit
Term
What do you use in situations where you have multiple tenants per building and you can not reach the demarcation point?
Definition
Demarc Extensions
Term
What are the three things you need to check for when you are verifying link quality?
Definition
Loss, Crosstalk, and Propigation delay
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