new hire Flashcards
What kind of TV uses thousands of florescent lights grouped in sets of three that comprise each pixel?
Plasma
What type of device provide a customer with the most popular calling features, with enhanced 911 functionality and battery backup
eMTA
What are the four types of remotes?
Universal learning, universal, unified, dedicated
How much space should surround a digital converter for proper heat dissipation?
2-2.5”
What are the most common features on a remote control?
Changing the channels, Turning the TV on and off, Scanning through your favorite channels, Recalling the last channel you watched, Activating parental lockout control, Muting the sound Controlling volume
What is the purpose of the drop cable?
The drop cable delivers RF to the customers home via the wall outlet
What is used to compensate for signal loss over long drops?
Drop amplifier
Which device connects the drop system to the feeder system?
Tap
What is the installation method of choice to feed outlets in a home from the primary service distribution point?
Passive, un-amplified and balanced RF splitting distribution network
Shield of drop cable consists of ____ and _____
foil and braid
What signals are carried on composite video?
Brightness, color information and synchronization pulses
SPIDF supports which Dolby Digital surround sound formats?
5.1, 6.1 and 7.1
Which type of cable has become the standard for interfacing Home Theatre componenets?
HDMI
Which interconnect uses light to transmit audio signals?
Toslink, EIA/J
Firewire supports the movement of multimedia data and large files at what two speeds?
400 Mbps and 800 Mbps
What is a combination of spatial image compression and temporal motion compensation?
Digital Compression
What is the ideal BER of a 256QAM channel of 40Mbps?
1.0E-09
How much bandwidth has the FCC allocated to a single digital channel?
19.39 megabits per second (Mbps)
What type of signal is a continuous waveform?
Analog signal
Who mandates certain frequency levels for various types of communication?
The FCC
Helping the customer to help themselves by learning more about their equipment will often provide _______
A better customer experience
When providing an explanation to a customer, make sure to avoid the use of _____
Jargon or Slang
What should be done before performaing any work at an install?
Discuss details of the install with the customer
On an HSD install, after the customer completes the brief FTUE initiation, you (the technician) will take the customer to the Profile Page…what is the web address?
http://xfinity.com/profile
What is the Comcast Customer Gurantee?
We will give you a 30-day, money-back guarantee on all our services. We will be respectful and courteous of you and your home. We will answer your questions at your convenience. We will offer easy-to-understand packages and provide you with a clear bill. We will continually offer the best and most video choices. We will quickly address any problem you experience. We will schedule appointments at your convenience and be mindful of your time.
What are three ways to reduce stress?
Take 3 Deep Breaths Count to 10 Take a short break
What will will largely determine the quality of your work relationships.
Attitude
Name two Verbal behaviors to avoid at work:
1) Arguing 2) Swearing 3) Yelling 4) Mocking 5) Talking back 6) Blaming others 7) Talking “under your breath” 8) Not returning phone calls
Who is responsible for using the iPhone/laptop/Symbol device to process completed work orders
The technician
Where can the organizational structure map be viewed?
The People Finder through TeamComcast
A hard hat will absorb ___ of the force of a blow
75%
What are the four types of gloves?
work, climbing, electrical, acid-resistant
What is the ANSI standard for safety glasses?
z87.1
What ANSI standard describes hard hats?
z89.1
What is the purpose of a hard hat?
To prevent head injury
The Rule of Three for Xfinity TV:
Provide Welcome Kit Demonstrate navigation of the onscreen guide Explain Video On Demand and XfinityTV.com
The Rule of Three for Xfinity Internet
Provide Welcome Kit and assist in creation of Comcast.net email address and password Establish home page after consulting with the customer and communicating its value and convenience. Describe additional benefits such as Norton Security
Three steps to customer education:
Explain 2. Demonstrate 3. Practice
The Rule of Three for Xfinity Voice
Confirm customers new phone number Demonstrate Voice Mail and give Welcome Kit Introduce customer to SmartZone
Three materials to leave at a customer’s home:
- Welcome Kit 2. Signed copy of work order or printed receipt 3. Equipment manuals (remote, etc.)
…is a small weight that can be attached to the end of a handline and tossed over an obstruction. The drop cable is then attached to the rope and pulled.
Throwing weight
…are insulated combination pliers and cutting tool used for cutting heavier gauge wire or cables, such as Series 11 drop cable.
Lineman’s pliers
…is a stand designed to hold and transport a roll of drop cable.
Cable caddy
This is a multipurpose tool with a pointed shaft used for starting holes where drilling is required, or making holes in drywall for inserting plastic wall anchors.
Awl
…are used like pliers, but are adjustable for different sized objects while maintaining nearly the same leverage.
Channel locks
This section of the National Electric Code requires that specific types of coaxial cable be used in certain environments.
Section 820-50
The purpose of Coax’s outer jacket:
- Provides protection 2. Prevents moisture, dirt, & elements from entering cable
Name four types of coax:
CATV CATV-X CATV-R CATVP Series 59 Series 6 Series 7 QR320 Series 11
The jacket of underground cable is made from ____
Polyethelyne
If dielectric material has a higher percentage of air, the attenuation will be ____
Reduced
- Work gloves 2. Climbing gloves 3. Insulated electrical gloves
The three types of gloves you may use during the course of your work
Z89.1 1981 standard; class B
American National Standard Institute rating for hard hats
This is where the work takes place in a traffic control zone. It includes one or more buffer spaces.
Activity Area
Traffic Cones • Drums • Barricades • Lighting Devices • Warning Lights
Types of Channelizing devices
There are six things to do inorder to care for someone with Hypothermia. Name 4 out of the 6 treatment options
• Send someone to call 911 or a local emergency number • Gently move person to a warm place • Check breathing and pulse • Give rescue breathing as necessary • Remove any wet clothing and dry the person • Warm person slowly by wrapping in blankets or by putting dry clothing on person.
A technology that allows the fast transfer of Bi-Directional Analog and Digital signal over Coax, phone lines, wireless signals and satellite connections.
Broadband Technology
A range of wavelengths of electromagnetic emission.
Spectrum
Passage of an outside signal into the cable; can result in noise and disruption of the desired signal.
Ingress
The U.S. government agency established to regulate electronic communications.
Federal Communications Commission (FCC)
Label for consumer electronic devices, such as television sets and VCRs, that are designed to allow direct connection to a CATV network.
Cable Compatible/ Cable Ready
What type of cables are used in the HFC architecture?
Coaxial & Fiber
Where RF signals from many sources are combined together and fed into a fiber optic transmitter.
The Headend
The small flexible wire that connects the feeder portion of the distribution system at the tap to the terminal device(s) at the customer’s premises.
Drop Cable
Name the 3 active devices in the cable plant.
Amplifier, Node and Power Supply (New Hire: Cable 101: 2-32)
What are the four basic components of the distribution system?
-Amplifiers -Coaxial Hardline Cables -Power Supplies -Taps
This should be checked where the ladder will be set up, for stability.
The Ground
When you are moving the ladder just a short distance down the same leaning surface, such as the side of a house, you may use…….
Side Vertical Carry
What are the 4 types of ladder carry.
- Horizontal carry at the shoulder 2. Horizontal carry at the hip 3. Half-vertical, half-horizontal carry 4. Side vertical carry
In general, there are two types of vehicle ladder racks, what are they?
fixed rack and a “drop-down” or “side-winding” rack.
Name 4 things that should be inspected on a ladder
Rung locks - operate freely, Feet are on tight and have the proper protective grips/ pads, Rungs are solidly in place - not loose, worn, broken or missing, Fiberglass rails are solidly in place - no cracks, splinters, dents or worn spots, Rope - not frayed, worn or rotten, Rung lock flippers - working and not worn or bent, Pulley and mount bracket - not worn or cracked and wheel moves freely,Strand hooks are solidly in place - not bent or cracked
Providing a Welcome Kit, Demo the On Screen Guide and Explaining the On Demand. These are….
Xfinity Video Rule of Three
Provides Customers with reference information for quick and efficient resolution to inquiries and or problems.
Welcome Kit
Often the only face of Comcast that the customer ever sees.
Comcast Technicians
What is The Rule of 3 for Xfinity Internet?
Have the Customer Create a Xfinity.Net Email Address, Take Customer through online welcome site and provide a Welcome Kit.
These must be used on all outdoor F-connector interfaces to protect the threads from moisture contamination.
Thread protectors (sealing sleeves)
Wall plates must have a ____ inch hex recess molded into the wall plate to hold the F-81 and prevent it from turning.
7/16 inch
These types of staples must not be used on coaxial drop cables.
Metal
Only products approved by ____ _____ ____ shall be used in the drop system.
Comcast Corporate Engineering
Drop amplifiers shall meet the minimum requirements of what ANSI code?
ANSI/SCTE 161 2009
Used to protect customer floors from dirt and grime when entering a customer’s home.
Boot Cover
Has Steel or fiberglass shank.
Boots
Must meet ANSI standard Z87.1-2003 impact safety standard.
Safety Glasses
Helps keep hard hat stable on a Technician’s head.
Hard Hat Strap
Must meet CFR 1910.268 (g)(2)(i) - (ii) and 1926.959 standards.
Climbing Belt
The FCC was established in what year?
1934
1988 was Comcast ‘s ___ Anniversary
25th (est.1963)
In 1997, what Tech giant invested 1 Billion Dollars in Comcast?
Microsoft
What company was the name of the parent company to NBCUniversal, prior to Comcast’s purchase in 2013?
GE (General Electric)
What year did Brian Roberts receive his first training as a Cable Installer?
1975 (in the Company’s Westmoreland Cable System) ( corporate.comcast.com)
Name 3 of the 5 benefits of Fiber Optic over Coaxial Cable.
Low signal loss, Greater Bandwidth, Noise Immunity, Increased Security and Better Durability.
Fiber Optic Cable is part of what portion of the overall HFC Architecture?
Transportation System
This device converts light energy back to RF energy.
Node
Transports modulated light between the fiber node and the headend.
Fiber Optic Link
This has replaced the older Tree and Branch architecture in Cable Systems.
Hybrid Fiber-Coaxial Architecture (HFC)
Where are the 4 places you should check signal when troubleshooting shooting?
Tap, ground block, splitters, CPE
What are 4 things we still do the same as the old (1950s) cable system?
- We still capture and generate signals2. We still convert the signals so we can assign them to frequencies on the cable.3. we still amplify the signals as the move away from the source.4. we still convert the signals in the home so they can be used with the customer’s electronics.
What is a DCRF?
It is a type of headend.
A Mechanical device that is fitted onto the coax to allow connection?
F-connector
A tool used to extinguish a flame?
Fire Extinguisher
What class safety vest is required?
Class 3
Used to help make sure commtechs stay hydrated?
water cooler
a tool used for cutting metal?
Hacksaw
used to dig and bury cables.
Shovel.
Used to confirm a level wall plate and house box?
Torpedo Level
An aggressive self-feed bit that cuts fast and clean holes in wood.
Auger bit
Technology that encodes, compresses, and decodes video and audio so we can pack multiple programs in the same space as we used to carry one TV station.
MPEG2
Two commonly used digital SLMs are:
JDSU DSAMTrilithic 860
Key piece of equipment used by the commtech is the?
SLM
what iOS app is used to connect to Wifi?
Settings
what iOS app is used to store phone numbers?
Contacts
To maintain the SLM:
Keep battery chargedClean battery terminals and examine for corrosionCheck SLM against a known sourceWipe the SLM gently and dry the display screen to prevent spots
The volt-ohm meter measures:
VoltageResistanceContinuity
A test instrument used to measure AC and DC voltage, current, and resistance in ohms:
VOM
A VOM is used to test:
CablesAC powerBatteries
Types of volt-ohm meters:
DigitalAnalog
A polarity tester is used to check these 6 things in an electrical outlet?
Open GroundOpen NeutralOpen HotHot & Ground ReversedHot & Neutral ReversedCorrect Polarity
The leakage detector is used to measure?
Egress
Useful whenever there is a need to check for the presence of low voltage or insulated conductors without having to touch the live wire or cable:
Polarity tester
A polarity tester is used to check 6 things in an electrical outlet?
Open GroundOpen NeutralOpen HotHot & Ground ReversedHot & Neutral ReversedCorrect Polarity
A cable line (overhead or underground) which branches off a main line or feeder.
Tap
A cable television system’s master control operation where signals are received and delivered on various cable system channels. Also the point at which High-Speed internet, On Demand and local telephone signals are spliced into the cable signal.
Headend
The process of converting data into a coded form to prevent it from being read and understood by an unauthorized party.
Encryption
Two types of traps:
NegativePositive
Filters that block a channel or channels from being received by a cable TV customer:
Negative traps
Remove an interfering carrier from a channel that a customer wants to receive:
Positive trap
Any technology used to protect the interests of owners of content and services.
Digital Rights Management
A specification developed for protecting digital entertainment content that uses the DVI-D interface.
High-bandwidth Digital Content Protection
Date the FCC began requiring service providers to make CableCARDs available.
July 1, 2004
U.S. government agency established to regulate electronic communications.
FCC
Year the FCC was established:
1934
A mandate by the FCC which requires cable operators only deploy digital set-top boxes that have a PC card slot for a multichannel CableCARD, to decrypt channels.
Separable security
What is the app that allows you to access the VPN via you iOS device?
Junos Pulse
Procedure for installation, reconnects, and installation of additional outlets:
Verify the customers address and greet the customerVerify that all hardware and cable meet BRIS specicifationsReconnect the drop, if it is not connected already.
Two ways to carry out a disconnect:
Soft disconnect for addressable servicesHard or physical disconnect
A system of computers, peripherals, terminals, and databases connected by communications lines.
Network
A network where devices communicate with each other unaided (one-on-one basis) and various connection styles are available.
P2P Network
Similar to P2P Networks, these networks have dependencies on other equipment and services.
LANs
Similar to P2P Networks, these networks have servers, routers, and switches with which they communicate or authenticate themselves to operate.
LANs
A group of computers and associated devices such as printers and servers that share a common communication line and other resources within a small geographic area.
LAN (Local Area Network)
A computer that handles requests for data, email, file transfers and other network services from other computers.
Server
The recognition of a user as having a valid account on the system with legitimate access to its resources, usually determined during login by a username and password.
Authentication
Found in both residential and commercial environments and are used to communicate internally or to access the internet.
LANs
A group of computers geographically far apart, but connected.
WAN
The Internet is an example of what type of network.
WAN
This type of network spans and connects multiple LANs together.
WAN
These types of networks are used by businesses to connect multiple sites together for information sharing.
WANs
The largest version of a WAN is known as:
The Internet
Comcast cable systems: .NET customers are associated across the Comcast network before connecting to the World Wide Web via what type of network.
WAN
The width of a band of frequencies.
Bandwidth
Often used to refer to the range of frequencies able to distribute telecommunications services.
Bandwidth
This term in communications should be avoided with existing or potential customers: Its meaning has been diluted in recent years, as it has been used to refer to speed, time, file size, or the Internet in general.
Bandwidth
A term that is often used synonymously with speed.
Bandwidth
Name four factors that influence Network speed:
-Interface Cards-Transport Medium-Switches-Routers-Interference-Congestion
Network Speed is calculated in bits per:
Second
This term is short for “binary digit” and refers to an electrical impulse representing a zero or one
bit
___ has 1000 bytes and is used primarily to measure data storage and sometimes used to describe bandwidth.
Kilobyte (KB)
A ___ is measured as “bits per second” and used to express the rate at which data is transmitted or processed.
bit rate
How many bits are usually in a byte?
8 bits
___ is a single character of data.
bit
___ is 8 bits.
Byte (B)
___ has 1000 bits and is used to measure speed by many Internet applications.
Kilobit (kb)
___ has 1000 bytes and is used primarily to measure data storage and sometimes used to describe bandwidth.
Kilobyte (KB)
The term for one character stored or processed by a computer. It is composed of bits, usually eight.
Byte
Short for Kilobytes:
KB
Equivalent to 1000 bytes
Kilobyte (KB)
A capitalized “b” indicates bytes where a lowercase “b” indicates:
bits
A lowercase “b” indicates bits where a capitalized “b” indicates:
bytes
Disconnected drops must be tightened to a minimum of ___________ onto the locking terminator.
20 inch-pounds
Any active service tags must be removed and replaced with?
Inactive service tags following a service disconnect.
The ____ _______ ___ must not be removed following a service disconnect.
Drop address tag
Follow these safety precautions in different parts of the house:
Wear hard hats because of limited spaceBe aware of the sharp ends of exposed nailsBe aware of standing waterLook for animals
What is the purpose of wall fishing and when would it be necessary?
reduce the amount of visible cable, and installed on interior walls.
when getting ready to wall, what is the first thing?
Safety
what are 3 of the 5 PPE that should be used for wall fishing.
Leather gloves, hard hat, safety glasses, dust mask, coveralls.
Balloon Frame Construction:
A sill is attached to the top.No band is attached to the sill.The outside wall studs are nailed directly to the sill.
Three units of measurement used in computer file size.
Kilobyte (KB), Megabyte (MB), Gigabyte (GB)
When attaching cable to vinyl siding always consider using _______ _____ as the first choice.
siding clips
When attaching cable to siding or shingles:
Attach the cable underneath the bottom row or in a “shadow line” to hide the cable.
This unit of measurement is one million bits, smaller than a megabyte and a common measure of network bandwidth.
Megabit (Mb)
This unit of measurement is one million bytes and is the most common measure of data storage.
Megabyte (MB)
This unit of measurement is used to measure RAM, hard-drive, web storage, and email storage capacities.
Megabyte (MB)
This unit of storage is equal to 1000 megabits and is used to describe the bandwidth of high capacity circuits such as those used in the Comcast CRAN.
Gigabit (Gb)
This unit of storage is 1000 bytes and is used to describe hard drive or RAM capacity.
Gigabyte (GB)
Three units of measurement used in computer file size.
Kilobyte (KB), Megabyte (MB), Gigabyte (GB)
what type of saw is used for wall fishing?
Key hole saw(jab saw)
LCD TV
Flat panel transistorized LCD display similar to a PC computerBest resolution and long lifeLimited viewing angleThinner and lighter than plasma unitsUse less power than plasma displaysMost expensive display per unit of size
A means of transporting signals from one point to another, using 22 or 24WG, 100 ohm copper wiring, typically Cat5 or Cat6 rated cabled.
Twisted Pair Cabling
Cable wiring which has been done while the house is being built is called?
prewiring
Where is usually the best place to begin planning a new install?
Basement
As defined by the Institute of Electrical and Electronics Engineers (IEEE) in the 802.3 and 802.11, this is the most common network type.
Ethernet Network
Two basic cable types used in copper-based Ethernet networks.
Straight cables and Crossover cables
A very common method of networking computers in a LAN (Local Area Network)
Ethernet
Popular technology that allows an electronic device to exchange data wirelessly.
Wi-Fi
The on board or add-on controllers that connect computers or devices to networks.
Network Interface Card (NIC)
Three different type of NIC (Network Interface Card)s:
Electrical based, fiber optic based, wireless
The most common type of NIC (Network Interface Card)
Electrical Based
Abbreviation for Megabits per second
Mbps
Standard 8-pin connector used to network computers, routers, printers and/or game consoles over an Ethernet connection.
RJ-45
In these cables, the individual pairs are twisted around each other, providing a noise cancelling effect.
Twisted Pair Cabling
A means of transporting signals from one point to another, using 22 or 24WG, 100 ohm copper wiring, typically Cat5 or Cat6 rated cabled.
Twisted Pair Cabling
Steps of the troubleshooting process:
IdentifyIsolate RepairVerify
What does Divide and Conquer mean?
Divide the problem in half and test each half.
Two types of Twisted Pair Cabling.
Shielded Twisted Pair (STP) and Unshielded Twisted Pair (UTP).
A unique physical address, also called a hardware address, that all devices that rely on computer network connections have (computers, cable modems, printers, game consoles, etc.)
MAC Address (Media Access Control)
List four “Cat” Twisted Pair Cabling standards as defined by the Electronic Industries Alliance and Telecommunications Industry Association (EIA/TIA) and their corresponding data rates.
Category 3: 10 MbpsCategory 5: 100 & 1000 MbpsCategory 5e: 100 & 1000 MbpsCategory 6: 10 Gbps
A cable that looks like an ordinary twisted-pair cable, but with two pairs of wires crosses.
Crossover cable
A cable that provides the capability of directly connecting two computers without using additional equipment.
Crossover cable
dB
Used to express a ratio between two signal levelsUsed to express passive loss and amp gainIt’s a ratio between power levels
dBmV
Used to express and absolute signal levelExpression of RF absolute signal strength
CRT Television
Large screen sets weighing up to several hundred poundsGood resolution and color, and a wide viewing angleFlat screen that reduces reflection
Rear Projection TV
Less depth and weight than a CRT TV set of the same size screenProjection tube an d lens alignment problems can degrade the picture
Front Projection TV
Projector located behind viewerProjector needs unobstructed path to screenLarge viewing areaLight source behind three LCD matrix panelsDigital Light Processing (DLP) improves picture quality
Plasma TV
Thin, flat screen displayDiagonal viewing areas in excess of 50 inchesUses thousands of fluorescent lights grouped in sets of 3Display is bright and can be viewed from a wide angle
This Ethernet cable type is typically used to connect the distributing equipment (switch, hub, router) to the computer
Straight Cable
This Ethernet cable type is named as such because one end corresponds directly with the other and the ends are identical.
Straight Cable
This Ethernet cable type is also known as a Patch Cable
Straight Cable
This Ethernet cable type is used to connect distributing devices or two computers for unaided point-to-point communication.
Crossover Cable
This Ethernet cable type uses the T-568A pinout on one end of the cable and the T-568B pinout on the other.
Crossover Cable
Five factors that affect Wireless Connectivity.
-Electromagnetic Interference-Building construction-Electronic devices in the same frequency range-Distance-Number of devices connected to the network
SSID
Service Set Identifier
A name that has been assigned to the local wireless network.
Service Set Identifier (SSID)
This type of network allows access to any client or user with a valid MAC address.
Open Network
This type of network’s level of security is extremely weak since MAC addresses can be spoofed (changed) on Network Interface Cards (NIC) to enable access.
Open Network
A unique physical address, also called a hardware address, that all devices that rely on computer network connections have (computers, cable modems, printers, game consoles, etc.)
MAC Address (Media Access Control)
LED TV
Uses an array of light emitting diodes to reproduce a pictureThin widescreen displayLarge viewing angleExtremely lightweight
This encryption method encrypts the network by using a pre-shared key. The key is 10-26 hexadecimal characters long.
Wired Equivalent Privacy (WEP)
This form of encryption was proved to be flawed in 2001 due to an inherent mathematical issue and the key can be broken in less than five minutes.
Wired Equivalent Privacy (WEP)
The process of converting data into a coded form (ciphertext) to prevent it from being read and understood by an unauthorized party.
Encryption
This encryption type was developed to replaced WEP and uses a Temporary Key Integrity Protocol (TKIP).
WPA
Users wishing to connect to a WPA or WPA2 protected network are required to supply a plain text password that is how many characters long?
8-63 characters
The network encryption type that uses Advanced Encryption Standard (AES) to secure the network.
WPA2
This wireless network security type is not a form of encryption; it really is an IEEE standard, which is a means of authenticating a user. This authentication system is typically found in commercial environments, and verifies the user’s username and password against a server’s database.
802.1x
Network interfaces are identified by using this unique number.
MAC Address
Numbers assigned to a device’s NIC to identify them on a given network and are written as 12 hexadecimal digits separated by colons and dashes.
MAC Address
Data moving on the network requires that the sending and receiving devices have different addresses that segment a network into smaller groups. These addresses are:
Internet Protocol (IP) Addresses
A set of rules governing the format of messages exchanged between computers and people.
Protocol
A set of rules and conventions that specifically governs how computers exchange information over a network medium.
Protocol
The most commonly deployed network communications protocol in the world today.
IPv4
The newest version of the IP protocol that uses expanded features and addressing to overcome the limitations of version 4.
IPv6
Four types of IP Addresses:
-Private-Loopback-Automatic Private-Public
These types of IP addresses are select ranges of IP addresses reserved for internal network usage and cannot be used on the public Internet
Private IP Addresses
Which numbers define whether or not an IP address is private?
The first numbers
You might see these IP addresses in various applications within the customer’s home.
Private IP Addresses
This is the IP address assigned to the device’s NIC and is used to verify that the IP function is operating correctly on the device.
Loopback IP Address
The customer’s computer does not have an IP address and cannot connect to the Internet. Which IP address could you use to confirm the network interface card is
Loopback IP Address
What is the exact Loopback address for IPv4?
127.0.0.1
What is the exact Loopback address for IPv6?
0:0:0:0:0:0:0:1
APIPA
Automatic Private IP Address
169.254.X.X andFE80:0:0:0:0:0:0:0 are examples of what type of IP addresses?
Automatic Private IP Addresses (APIPA)
Any numbers outside the range of private IP addresses are:
Public IP Addresses
These types of IP addresses are uses across the public Internet and are visible to other networks and devices.
Public IP Addresses
The IP address of: 205.23.124.66 is an example of what type of IP addresses?
Public IP Addresses
Inputs found on an A/V receiver:
CD PlayerUSBDVD PlayerSatellite ReceiverComposite VideoS-VideoComponent VideoHDMIDVIWi-FiBluetoothOptical Audio PortESATA PortEthernet Port
Functions of a Remote Control:
TV on and offChange channelsActivate parental lock controlMute soundScan favorite channelsRecall last channel watchedControl volume
Types of Remote Controls:
DedicatedUnifiedUniversalUniversal Learning
Coaxial RF Cable (analog video/audio transmission)
Carries the video and audio components togetherTransmits standard stereo, but not Dolby 5.1
Composite Video Signal
Uses a single signal, which is composed of brightness, color information, and synchronization pulses
S-video Signal
Splits the analog video signal into two separate signals:Brightness, or luminance (Y)Color, or chrominance (C)
Component Video Signal
Highest quality analog video signal, and acceptable for HDTV.Transmitted or stored as two or more seperate signals.Y: Contains luminance informationPb: Contains color informationPr: Contains color information
Component Video Cable Colors forY:Pb:Pr:
Y: GreenPb: BluePr: Red
Sony/Philips Digital Interconnect Format (SPDIF)
Carries digital audio signalsSupports Dolby Digital 5.1, 6.1, and 7.1 output (Surround Sound)
SPDIF coax cables can be affected by?
Signal Noise
SPDIF Optical Cable
Fiber optic cableUses light to transmit the audio informationAlso supports Dolby Digital 5.1, 6.1, 7.1, 7.2, THX, and DTS
Digital Visual Interface (DVI)
Has a bandwidth of 3.96 single link and 7.92 dual linkUses a single plug and connector that supports both the new digital and older VGA interfacesSupports HDTV resolutions
High-Definition Multimedia Interface (HDMI)
19-pin compact audio/video interface for transmitting uncompressed digital dataA digital alternative to consumer analog standards such as RF coaxial cable, composite video, S-Video, component video, and VGAStandard for interfacing home theater componentsUses a single plug and connector that supports both digital video and audioSupports HDTV with a single set of links
IEEE 1394 (fire wire)
Used to connect digital equipment such as digital set-top boxes, music systems, or camcorders directly to a personal computer
Features of a Set-Top-Box
Select channelsDescramble premium channlesAccess PPV and ON DEMANDUse remote controlsSet sleep timer
Downstream signal levels at the input to the set-top-box
Digital signal levels: -8 to +10 dBmV per BRISAnalog signal levels: 0 to +15 dBmV per BRIS
Where is a CableCARD Used?
Digital Cable-Ready (DCR) TVInteractive Digital Cable-Ready (IDCR) TVMultimedia Receivers (TiVo)Personal Computers
A DVR allows the customer to:
Easily record their favorite shows without tapes, without a VCR, of without troublesome timersPause live TV, view an instant replay, rewind favorite scenes, or play the show in slow motionRecord one show while recording another
In what three different ways can an IP address be assigned?
-Dynamic-Static-Reserved
Dynamic assignment of IP addresses is done through this.
Dynamic Host Configuration Protocol (DHCP) Server
This assigns a dynamic IP address when a device requests one.
Dynamic Host Configuration Protocol (DHCP) Server
A protocol for assigning IP addresses to devices on a network.
Dynamic Host Configuration Protocol (DHCP) Server
With this type of IP addressing, a device can have a different IP address every time it connects to the network.
Dynamic Addressing
This type of IP addressing simplifies network administration because the software keeps track of IP addresses rather than requiring an administrator to manage the task.
Dynamic Addressing
Through which type of IP addressing can a computer be added to a network without the hassle of manually assigning it a unique IP address.
Dynamic Addressing
Many ISPs use this type of IP addressing for dial-up users and broadband connections.
Dynamic Addressing
The type of IP addresses that are entered by an administrator or user and do not use the DHCP Server.
Static IP Addresses
The type of IP addresses that are used for devices in which the network or users depend on having the same address all of the time.
Static IP Addresses
Data transferred through a switch is ___-Duplex, meaning it can send and receive simultaneously.
Full-Duplex
IP addresses that can be reserved by the DHCP server for particular devices.
Reserved IP Addresses
The type of IP address that an administrator can use for a particular computer so that every time the computer request an IP address it will receive the same one.
Reserved IP Address
The type of IP addressing in which the DHCP server reserves the IP address for the MAC address that is associated with the device.
Reserved IP Address
The service that allows us to type “Comcast.com” instead of 69.241.45.20 in a web browser.
Domain Name Service (DNS)
The service that translates Domain Names into IP addresses.
Domain Name Service (DNS)
When a computer contacts a DNS server with a domain name and that DNS server does not have the IP address for the domain in its database, what happens next?
The DNS Server will submit a query to a higher level DNS Server
Which network equipment is used to send data between two or more networks?
Router
How many DNS Root Servers are there in the world?
13
The 13 servers that can identify and translate any existing domain name.
DNS Root Servers
Four types of networking equipment:
-Switch-Router-Access Point-Integrated Devices
A networking device that is used to connect multiple devices to a single LAN and has an internal memory.
Switch
A networking devices that maps a device’s MAC address to the physical port.
Switch
A networking device that allows data to be sent only to the originating and destination ports thus providing collision detection.
Switch
Data transferred through a switch is ___-Duplex, meaning it can send and receive simultaneously.
Full-Duplex
A networking device that sends data between two or more networks and routes according to IP.
Router
Transmission of data in only one direction at a time.
Half-Duplex
This networking device is used in accordance with one or more 802.11 standards to extend a network over air through the use of radio waves.
Access Point (AP)
This networking device can have an internal or external antenna, is similar to a hub in that it acts like a repeater and is half-duplex.
Access Point (AP)
These networking devices are usually referred to as gateways or wireless routers and are mainly used in residential environments.
Integrated Devices
Many companies like Netgear and SMC sell devices that have a router, switch and access point merged into a single device. What are these networking devices called?
Integrated Devices
Which network equipment is used to send data between two or more networks?
Router
PACE
Provide an Awesome Customer Experience
Comcast Customer Guarantee
Offer a 30 day money back guaranteeAnswer customers questions at their convenienceOffer early understood billsBe mindful of customer’s timeQuickly address problemsBe respectful and courteousOffer the best and most video choices
Welcome Kit
Provides customers with reference information for quick and efficient resolution of inquiries and/or problemsProvides customers with a record of requested and complete workGives customers confidence that they are receiving services from a reputable company
Federal Communications Commission (FCC)
U.S. government agency established in 1934 to regulate electronic communications.The FCC succeeded the Federal Radio Commission
A collection of software that manages computer hardware resources and provides common services for computer programs.
Operating System (OS)
A type of user interface that allows users to interact with electronic devices, using images rather than text commands.
Graphical User Interface (GUI)
A computer interface that permits users to directly manipulate objects which are displayed on the monitor.
Graphical User Interface (GUI)
Initially developed by Xerox PARC in the early 60’s, this was first widely deployed on Macintosh.
Graphical User Interface (GUI)
The two most popular operating systems that Comcast high-speed Internet is supported on.
-Windows 7 and 8-Mac OS X
All drop cables used for RF signal distribution shall meet the minimum physical and electrical requirements of:
ANSI/SCTE 74 2003
RF, or Radio Frequency, is an electromagnetic signal above the _____ and below the ________ frequencies.
audioinfrared
Impedance Mismatch
The condition that results when two components of a system are operating at a different impedance
Causes of Impedance Mismatches
Crimping the cable by using the wrong size staples or cable clipsKinking the cableNot following the cable bending radiusImproperly installed F-connectors
Top five connector problems:
Moisture damage to connectors and cablesCenter conductor too long or shortConnector not tightened properlyBraid was removed. Left too long or shortWrong connector used for cable type
Key stages in the installation process
Plan the route of the dropWork at the tapWork at the houseBond to the electrodeVerify the signal
What are the five Installation Prerequisites Steps performed before installing XFINITY Internet?
- Greet the customer2. Have the customer perform cold boot3. Check peripheral components4. Close security applications5. Check for minimum requirements
This refers to turning a computer/device on from a powered-down state. This also means that the power supply to the device is turned off and the device is booted up again.
Cold Boot
Who must always perform a Cold Boot?
The customer
What are the two steps taken to close security applications on a computer with a Windows OS?
- Right click on the security application icon in the system tray.2. Click Close or Exit
What are the two steps taken to close security applications on a computer with a MAC OS X?
- Open the security application2. Click Turn Off or Exit
Aerial drop routing must:
Follow the power service drop wherever possibleMaintain safe vertical clearanceAvoid cable trespass Avoid crossing swimming pools and utility lines
What are the seven steps of the XFINITY Internet Installation Procedure?
- Locate/Install cable outlet2. Install cable modem3. Perform a backup4. Check for Network Hardware5. Connect Modem to Computer6. Setup Network Connections7. Activate Service
Adapter that allows a customer to use their electrical system as a transmission path for the home network.
Home Plug
What are the four steps for installing a Cable Outlet?
- Decide where to install the cable outlet2. Discuss the location and process with the customer; explaining the need for a cable outlet.3. Inspect the location, both indoors and outdoors, where you will install the cable outlet.4. Install the cable outlet.
A safety code written and administered by the National Fire Protection Association.
National Electrical Code (NEC)
The resistance of a circuit to alternating current such as cable passive devices.
Impedance
Although this is measured in ohms, it can’t be measured with the ohm portion of a volt-ohm meter.
Impedance
On a customer’s computer, which port is recommended to use for XFINITY Internet installation?
The Ethernet port
During a XFINITY Internet installation; after backing the system registry, you must visually examine the customer’s computer for what built-in ports?
Ethernet and USB ports
If a customer’s computer does not have a free Ethernet port, what other port can you use to connect to the modem during the Installation of XFINITY Internet?
USB port
After connecting the modem to the computer, what is the next step during the XFINITY Internet Installation process?
Set up Network Connections
The first implementation of this transmission protocol was amazingly successful and it is still THE protocol of the Internet.
TCP/IP (Transmission Control Protocol/Internet Protocol)
This transmission protocol first saw use on the original Department of Defense Internet in 1983.
TCP/IP (Transmission Control Protocol/Internet Protocol)
A suite of communications protocols that allows communications between groups of dissimilar computer systems from a variety of vendors.
TCP/IP (Transmission Control Protocol/Internet Protocol)
While in the Set Up Network Connections step of the XFINITY Internet Installation process, what two steps are performed to set up a network connection in Windows OS?
- Verify TCP/IP Settings2. Turn off file and print sharing.
While in the Set Up Network Connections step of the XFINITY Internet Installation process, what three steps are performed to set up a network connection in Mac OS?
- Configure the computer’s Ethernet connection to the Comcast network.2 Enable DHCP.3. Turn off file and print sharing.
A protocol for assigning dynamic IP addresses to devices on a network.
DHCP (Dynamic Host Configuration Protocol)
You have finished setting up the network connections on the customer’s computer. According to the XFINITY Internet Installation process, what is the next step to take?
Activate XFINITY Internet Service
Through which two ways can you activate XFINITY Internet service for your customer?
- iPhone or laptop2. Activation flow on the customer’s computer
What are the three different XFINITY Internet provisioning scenarios?
- Top-down provisioning2. Bottom-up provisioning3. Self-provisioning
This is the recommended method of provisioning because it works in all scenarios and it does not leave any data records that need to be reconciled manually.
Top-down provisioning
This type of provisioning occurs when the customer account exists in the billing system and the modem to be installed is on the account prior to it being physically connected.
Top-down provisioning
This type of provisioning occurs when the customer account exists in the billing system and the modem to be installed is not on the account in the billing system.
Bottom-up provisioning
This type of provisioning occurs when the customer calls the call center and orders XFINITY Internet, a rate code is added to the account and the equipment is shipped to the customer for self-installation.
Self-provisioning
The service activation process for XFINITY Internet begins with the authentication of the customer on the ___.
Comcast Advanced Activation Platform (CAAP)
The activation process flow that configures the customer’s account and equipment during Service Activation using the customer’s computer.
Comcast Advanced Activation Platform (CAAP)
When referring to XFINITY Internet Customer Education Guidelines, what is the “Rule of Three”
- Ask the customer to create a Comcast.net e-mail address and password.2. Take the customer through the Online Welcome site.3. Demonstrate Comcast.net benefits
This is the ability to share resources such as files, printers, drivers and high-speed Internet access across all computers connected within a home.
Home Networking
Placement of the Wireless Gateway has a great impact on how it will function in a customer’s home. What are the four rules that must be following when installing the Wireless Gateway?
- Install in a central location where client devices will most likely be used.2. Install in an elevated location, such as a higher shelf where laptops have a line of sight view.3. Away from interference sources4. Away from metal objects and surfaces.
Provide two examples of interference sources that can impact the functionality of the Wireless Gateway.
Microwaves, 2.4Ghz cordless phones, additional wireless routers
A wireless adapter that connects to the outside of a laptop via a USB port.
USB Network Adapter or USB Wireless Adapter
This allows a customer to use their electrical system as a transmission path for the home network.
Home Plug
what does RIGHT mean?
Re-establish your rapportInform the customer that we need inputGuaranteeHand the Comcast business card to the customerThank the customer for his or her busines
What is the default IP address you can use to login to the XFINITY Internet Wireless gateway?
10.0.0.1
This Advance feature in the XFINITY Internet Wireless Gateway uses Plug and Play (UPnP) to automatically configure the router and devices for various Internet applications such as gaming, media sharing and video conferencing.
Device Discovery
Device Discover in the XFINITY Internet Wireless Gateway uses ___ to automatically configure the router and devices for various Internet applications such as gaming, media sharing and video conferencing.
UPnP (Universal Plug and Play)
A command line command that displays the IP address, subnet mask, and default gateway for all adapters.
ipconfig
A command line command used to determine the computer’s IP address and to reset the address if the computer cannon connect to the Internet.
ipconfig
This command line command can be used to release the current IP address of a computer.
ipconfig/release
This command line command can be used to get a new IP address on a computer.
ipconfig/renew
A utility used to determine whether a specific IP address is accessible; it sends a packet to the specified address and waits for it to reply.
Ping
This command line utility is used to see if the computer can successfully access a specified website.
Ping
A utility that traces a packet from your computer to an Internet host.
Traceroute
A command line utility used to show how many hops the packet requires to reach the host and how long each hop takes.
Traceroute
What switch is added to the ping command for continuous pinging?
-t
What key combination is pressed on the keyboard to stop a continuous ping?
Ctrl + C
How do access the Ping utility in Mac OS X?
- Double click Macintosh HD2. Macintosh Hard Drive>Applications>Utilities>Network Utilities3. Click the Ping Tab4. The URL name or IP address5. Click Ping6. Close the Network Utility window
What are the five restore/reset options in the Restore/Reset Gateway screen in a XFINITY Internet Wireless Gateway?
- Reset2. Reset Wi-Fi Module3. Reset Wi-Fi Router4. Restore Wi-Fi Settings5. Restore Factory Settings
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to restart the gateway?
“Reset”
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to reset the Wi-Fi module only?
“Reset Wi-Fi Module”
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to activate the Gateway Default Settings for Wi-Fi only? This option will cause only Wi-Fi Settings to be lost.
“Restore Wi-Fi Settings”
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to activate your Gateway Default Settings? This option will cause all previous settings to be lost.
“Restore Factory Settings”
Devices/product surfaces must not exceed 45 °C for _______ and 40 °C for ________?
Plastic and metal
List 4 features of X1
new On demandsmart searchlast ninecloud dvrand any others that are true just not listed.
what system was created to better server our customers television needs?
X1 platform
what are the two ways the x1 platform provides and receives information?
QAM and DOCSIS
How big of a hard drive does the XG1 have?
500 GB
If a X1 box is hooked up with RF output what aspect ratio will the guide be?
4:3
what button on the xfinity remote gets to almost all functions?
the xfinity button
One thing every X1 install needs?
POE filter(MoCA filter)
what is the number digits to un-pair the XR2 remote?
987
