2017 CTJ Traditional new hire questions Flashcards
What method should be used when isolating the cause of a problem?
Divide and Conquer
which two OSHA standards must our climbing belts and safety strapsmeet?
1910.268 and 1926.959
What does RG stand for
Radio Guide
Maximum distance of CAT 3
150 feet
Caller ID Blocking activate/deactive codes
67/82
Attached to protect and ensure that our drops/traps will not be tamered with by unauthorized persons
Security Sleeves/Shields
used for pre-drilling in masonry or stucco
con-sert tool
IP addresses assigned to a devices NIC and verify that the IP function is operating correctly
Loopback IP Addresses
MoCA
Multimedia over Coax Alliance
MAC
Media Access Control
An IEEE standard which acts as a means of authenticating a user. Typically found in commercial environments, it verifies a username and password against a server’s database
802.1x
Which CFR refers to Cable television service regulation (especially for signal leakage)
Title 47, Part 76
Total REN should not exceed what?
5
TNS
Plural Telephone Numbers
Color used to designate potable water
Blue
CLI
Cumulative Leakage Index
CRT
Cathode Ray Tube
The MPEG method splits the signal into what three types of encoded pictures?
I-pictures aka key frames, P-pictures aka predictive frames, and B-pictures aka bi-directional frames
QAM
Quadrature Amplitude Modulation
speed dial 30 activate code
*75
WEP
Wired Equivalent Privacy
Maximum distance of CAT 5
328 feet (100 meters)
Worldwide network of public circuit-switches used by traditional, local, and long-distance companies
PSTN
DTMF
Dual Tone Multi-Frequency
What impact rating should the toe of the boot meet?
I/75 C/75 (for nominal impact of 75 pounds)
what gauge wire is require for series 6 drops?
12 AWG
DOCSIS
Data Over Cable Service Interface Specification
A removable security card available from cable TV providers.
CableCARD
what is one millivolt across a 75 ohm load (FCC mandated baseline)?
0dBmV
color used to designate sewers and drain lines
Green
What Year was Comcast founded?
1963
how much signal loss is there for series 6 cable per 100 feet at 54MHz? (Rule of Thumb)
2dB
minimum height requirement of our reflective safety cones
28”
Hard Hat ANSI Standard
Z89.1
A utility that traces a packet from your computer to an internet host
Traceroute
What does 60Hz cycle Hum look like?
one black horizontal bar progressing up the TV screen
Five factors which determine attenuation
- Center condutir size 2. dielectric material 3.cable length 4.Temperature 5.Frequency
MUTCD
Manual on Uniform Traffic Control Devices
AM
Amplitude modulation
what are the two types of Volt Ohm Meters?
DMM (Digital Multi-meter) and Analog
Total loss equals
Cable loss + passive loss
BRIS requires clips be spaced every _____ to ______ horizontally
18 to 24 inches
The width of a band of frequencies
Bandwidth
Occurs when the drop cable crosses neighboring property lines
Cable trespass
WPA
Wi-Fi Protected Access
RDK
Reference Design Kit
collection of frames to be transmitted in one unit of time is called what?
a picture group
Enhanced voicemail code
*99
Type of encryption using TKIP or AES, users must supply a plain text password 8-63 characters long
WPA
Plenum cable for use in environmental air spaces such as ducts
CATVP
Riser cable for vertical runs in a shaft or floor-to-floor in MDUs
CATVR
NIC
Network Interface Card
What is the max range for Public IP Addresses?
224.x.x.x
Call screening activate/deactivate codes
60/80
BER
Bit error rate
P2P
Point to point
How many inch/lbs of torque is our torque wrench set to?
20 inch/lbs
SCTE
Society of Cable Telecommunications Engineers
Series cable used for long drops
RG 11
Bending radius of series 6 cable
2.5” (5” diameter)
What was the name of Comcat’s original company?
American Cable Systems
What class safety vest does Comcast use?
Class 3 high visibility
A computer that handles a request data, file transfers, and other network services from other computers
Server
Standard 8 pin connector used to network computers,routers etc. over an ethernet connection
RJ-45
The FCC superseded which other agency?
Federal Radio Commission
our minimum clearance from other telecomm at the house
6 in.
These IP addresses can be reserved by an administrator and can then be used by the DHCP to assign a device its same address
Reserved
Provides the means to bond the drop cable to the house common electrode system
Bond Block
What is the max speed of 802.11ac?
1.3 Gbps
National standard for the safe installation of electrical wiring and equipment
National Electric Code NEC
Difference between transmitted and received power resulting from signal loss, usually expressed in decibels
Attenuation
GUI
Graphical User Interface
A site where telco companies physically interconnect their systems with other networks
POP
What does 120Hz cycle Hum look like?
two black horizontal bars progressing up TV screen
How many bits are in one Byte?
8
Bending radius of series 11 cable
4.5” (9” diameter)
When is it allowed to drill from inside the home to the outside?
when drilling through a wood exterior
Expected signal level equals
Starting signal level-total loss
The leading standard for cable modems
DOCSIS
CATV
Community Antenna Television, sometimes also refered to as Community Access Television
BRIS
Broadband Residential Installation Specification
Ratio between two signal power levels
Decibel dB
Series cable used in MDUs
QR 320
CFR
Code of Federal Regulations
Call waiting deavtivate code
*70
NPAC
Number Portability Administration Center
what does modem stand for?
modulate/demodulate
color used to designate irrigation
Purple
our minimum clearance from other telecomm at the pole
12 in.
electromagnetic signal above the audio and below the infrared frequencies
Radio Frequency
What is he maximum nymber of splices allowed in an underground drop of more than 60’?
2
One of 13 servers that serve a DNS root zone
Root Server
eMTA
Embedded Multimedia Terminal Adapter
what is the most common dielectric material?
Polyethylene foam
Absolute signal power that describes the signal at a specific location
Decibel millivolt dBmV
DNS
Domain Name Service
Our minimum clearance over residential driveways not subject to truck traffic, or where structure does not allow us to meet higher requirement
11.5 feet
NEC article for Communications curcuits
Article 800
A method for encrypting a network with a shared key, the key is 10-26 hexadecimal characters long
WEP
How do you calculate an NPS score?
% of promoters-% of detractors
A test instrument used to measure AC and DC voltage, current, and resistance in ohms
Volt Ohm Meter
POP
Point of Presence
This allows the alarm panel to control access to active phone pairs, and seize those pairs even if the customer is using the telephone
Line Seizure
MER
Modulation error ratio
Most commonly deployed network communications protocol in the world today
IPv4
how high should your boot be from the top of the heel?
6” minimum
Name bonding options in order from most to least preferred
1a #6 AWG solid copper stub 1b. Sturcture’s grounding bridge 2. power company’s grounding conductor (wire) 3. power company’s grounding electrode (ground rod) 4. metallic conduit of power meter 5.metallic cabinet of power meter 6. interior metal cold water pipe (if conditions are met) also bonus bond to I beamof mobile home if power service equipment is within 30 feet of mobile home. another option is bonding at the tap if tap and power pedestals are next to each other and within 30 feet of the home (least prefered option and #6 AWG required)
Call forwarding Selective activate/deactivate codes
63/83
