Delivering Cable Services Practice Test

These questions are part of the practice quiz. Start practicing

• What could prevent a consumer electronic device from being able to record, play back, or display licensed digital content?
• What analog TV impairments are no longer problems in digital video?
• In an HFC plant, what is the function of an optical node?
• Which of the following is NOT a characteristic of PacketCable 1.0 architecture?
• What is the primary purpose of a leakage detector in cable maintenance?
• Which statement best describes what PacketCable enables with real-time communication?
• Which headend component is used to encode video streams into a format suitable for distribution?
• Why is a return-path frequency plan important and how is it managed?
• Where must a cable operator publicly display their Equal Employment Opportunity procedures?
• Which organization regulates safety practices during installation, operation, or maintenance of electrical supply and communication lines?
• Which describes a benefit of PacketCable's managed IP network?
• In choosing analog connections to an analog TV, what is the recommended order of preference?
• Long, continuous links of flexible polyethylene conduit can be installed by two people; one drives the plow. What is the other person’s job?
• What is the role of the AV receiver in a home theater system?
• After preparing a cable table of preferred options, what should the technician do next?
• What term describes the portion of a broadband cable network that is the distribution network composed of coax and fiber?
• What does a node in an HFC network do, and how can node issues affect service?
• Which term refers to the central facility that originates and processes signals for distribution in a cable system?
• What signal modulation technique do cable operators use to transport digital television signals through the cable network?
• Which technology led to the expansion of cable system channel capacity in the 1980s?
• Why is the span clamp placement influenced by the pole's location relative to the customer's premises?
• When determining where to place a span clamp on a strand, which factor is considered?
• Which method is described for testing pole integrity to detect decay pockets?
• What two methods are described for routing service drop cable under obstacles such as driveways or sidewalks?
• When coaxial drop cable is prepared for burial later by a third party and the customer is not home, what is the best way to notify the customer about the temporary drop?
• What type of traffic is transported over a broadband cable network's return path?
• Why is proper grounding and bonding important for service drops?
• What is the return path in a cable network, and why is it important?
• What is the purpose of entitlements in content access?
• What is the primary distribution technology used by traditional cable systems to deliver video and data to multiple homes?
• How do you typically connect boxes to the HDTV to provide the best picture quality?
• Which device is primarily responsible for routing multiple audio inputs to speakers in a home theater system?
• What does the OSHA specified pole test ensure before climbing a pole?
• What could be the safety consequences of leaving a raised extension ladder unintended, while working inside the customers premises?
• In what year did the FCC enact rules requiring close captioning for most IP-delivered programming?
• What is an inexpensive device that is used by cable operators to provide digital TV services to all their customers?
• Which device type is explicitly mentioned as participating in return path communications within a broadband network?
• What occurs during set-top box authorization for a service package?
• What type of cable should be used for an underground service drop between the tap and the ground block?
• In pole integrity testing for decay pockets, what action is described as indicating decay pockets?
• Which networks are included in PacketCable 1.0 architecture?
• In plain old telephone service, what is the local loop circuit?
• When light strikes a medium at an angle less than the critical angle, what happens to the light?
• Downstream broadband RF signals traveling inside the coax cable start at what frequency in the United States?
• What is a set-top box (STB) and what is its primary role in cable delivery?
• Which federal agency enforces workplace safety and can impose fines for non-compliance with standards?
• What is BER and when is it critical in a cable system?
• What is a leakage detector used for in cable maintenance?
• When evaluating connection options, what should be recognized about signal flow?
• Which item is not listed as one of the three common safety practice categories?
• What is a franchise agreement and how does it affect how you deliver cable services?
• Which organization establishes rules for safeguarding persons during installation, operation, or maintenance of electrical supply and communication lines and equipment?
• Which tier corresponds to computer-to-computer VoIP services such as Skype?
• DOCSIS stands for and its main purpose in cable networks?
• What PPE should technicians wear when working on service drops?
• What is the effect of applying a light amount of grease to the tap port threads or using sealing tape at the port on a drop connection?
• What is a service drop and what safety practices are required when installing it?
• Which term describes the standard level for analog audio output from consumer electronics?
• Which statement best captures the goal when selecting connections between devices?
• How is Quality of Service (QoS) measured in cable networks?
• A single beam TV receive-only antenna uses what primary physical shape to focus the signal?
• After selecting underground drop cable routes and locating other underground utilities, which burial method is most common in new construction areas?
• The authority that issues local franchises to cable operators is responsible for granting access to what area?
• Which modulation method is used for color signals in the headend?
• What is typically used to represent computer characters or words?
• What does MER stand for and why is it important for QAM signals?
• Which employment practice is mandated to be publicly accessible by cable operators under the Cable Act of 1984?
• What does the term "Proof of Performance" (PoP) testing refer to in broadband networks?
• Which provisioning step involves informing the customer that service is available?
• To achieve longer transmission distances, which wavelength is commonly used for amplification in fiber optics?
• What is the purpose of cladding in a fiber optic cable?
• Video on Demand content is typically delivered by streaming from which server to end-user devices?
• Which statement differentiates downstream and upstream in a DOCSIS network?
• What concept added to the DOCSIS 1.1 media access control protocol prioritized IP traffic by application, giving priority to real-time data such as streaming video?
• What possible consequences could result from an OSHA investigation that proves an accident was due to lack of or improper training?
• A satellite transponder performs which functions?
• For manual boring under obstacles, how long should the starting trench be?
• Which step is taken to prepare for sag by lifting the drop cable to the house hook?
• What does SNR stand for and what does it indicate in a cable plant?
• Which of the following is NOT typically part of a QoS measurement set?
• Differentiate basic tier versus premium tier in a typical cable lineup.
• What is the role of firmware updates on residential gateways, and why are they important?
• What type of coupler allows any port to be used as an input or output in a network?
• Which step in the outage ticket lifecycle directly follows ticket creation and assignment?
• In a cable network, what is downstream?
• What tool is recommended for picking up small fiber pieces after splicing?
• Which option best describes the process that ensures only authorized viewing by decrypting content and applying entitlements?
• Which item is NOT part of the OSHA field personnel standards for cable operators?
• PacketCable was designed to deliver real-time IP applications with the same level of quality as circuit-switched technology delivered for POTS.
• What is a gateway or residential CPE, and what are typical capabilities?
• Which form must a broadband cable operator file annually with the FCC listing all measured leakage levels?
• Which administrative group maintains communication with installers, construction/maintenance techs, and the customer service department?
• What process is used to combine multiple signals into a single transmission stream at the headend?
• Why is a controlled firmware rollout important when updating residential gateway software?
• Which statement about HDMI is true?
• Which statement best describes a key function of DOCSIS?
• How does channel bonding enhance bandwidth in DOCSIS 3.0/3.1?
• What is the primary purpose of transporting video and audio as a multiplexed stream over a network?
• When there is potential pedestrian traffic along the stringing route, what should be placed to warn people?
• Which modulation schemes are commonly used for downstream video in digital cable?
• Which two methods are mentioned for installing long, continuous links of flexible polyethylene conduit underground?
• When light meets a boundary at an angle less than the critical angle, what optical effect occurs?
• Which of the following is NOT a determinant of conductor resistance?
• Which terrestrial transmission technology did the Advanced Television Systems Committee select?
• What is Conditional Access (CA) and why is it critical for cable services?
• What tool should be used to pick up small fiber optic pieces after splicing?
• Which items pertain to OSHA standards for a cable operator's field personnel?
• What is a short length of fiber that serves as an amplifier in fiber optic networks, allowing light signals to travel further while retaining signal strength?
• In a broadband cable network, which group is responsible for ensuring the network remains in smooth running order by dispatching crews to carry out routine system testing, preventative maintenance, and equipment testing/replacement?
• Which statement accurately compares packet switching and circuit switching in telecommunication networks?
• What is franchise compliance, and what obligations might it impose on a cable operator?
• How does signaling differ between traditional telephone calls and PacketCable VoIP calls?
• What are factors that determine a conductor's resistance?
• Why is the broadband cable Industry developing its own passive optical network standard instead of using ITU and IEEE PON standards?
• Why are state-issued franchises often favored over multiple local franchises?
• In PacketCable architecture, what best describes the role of the managed IP network?
• Which modulation schemes are commonly used for upstream data in DOCSIS networks?
• Which statement best describes the relation of enhanced definition television to progressive scanning?
• What best describes digital interfaces when connecting consumer electronics?
• Who typically prepares the coaxial drop cable for burial later?
• Which organization selected the 8 level vestigial sideband as the terrestrial transmission technology?
• Which coupler is used when any port can be used as input or output?
• In a pole stability test used to detect decay pockets, what result indicates decay pockets?
• What is a key advantage of using S/PDIF (Sony/Philips Digital Interface) connections for audio?
• Which statement best describes channel bonding in DOCSIS networks?
• What is one aspect common between digital video interface or DVI and high definition multimedia interface HDMI signaling?
• What happens as RF signals travel over cable?
• Over-the-air broadcast signals are acquired at the head using which antennas?
• What is the role of a headend in video encoding and distribution?
• A customer reports pixelation on multiple channels. What is a likely root cause?
• Which customer premises devices can be impacted by cable telephone service?
• What steps would you take if a customer reports slow Wi-Fi after installation?
• How is Video on Demand typically delivered over a cable network?
• Why are digital terminal adapters or DTAs more cost effective than a full featured set-top box?
• What is a key difference between frequency modulation and amplitude modulation in microwave links?
• What is DVR and how is it typically delivered in a cable system?
• Name three essential components located at a cable headend.
• What function does PCM serve in the public switched telephone network?
• What is the role of a franchise authority?
• What are the two basic guidelines for selecting the best connection options?
• Where should a cable caddy be placed to allow all cable lengths to be routed and cut without moving it far?
• How should service drop cable be routed to the pedestal or vault in preparation for a tap connection?
• Which legislation act required all television stations to switch to digital-only broadcasting?
• What is the primary purpose of a cable caddy in cable reel handling?
• What is encapsulation in the context of video transport on a cable network?
• What is the name of the standards-setting group for the television industry that aimed for a single system nationwide?
• If a customer loses TV service but remains connected to the internet, what would you check first?
• Which device separates the incoming signal from the video and audio components?
• Which type of cellular service can suffer interference caused by leakage from broadband cable networks?
• Which NEC articles apply to broadband cable networks?
• Which injuries are office employees at risk of suffering on the job?
• What is the function of a QAM modulator in the headend?
• How is a coaxial cable tested in the field for continuity and integrity?
• What are three common safety procedure categories practiced by cable operators to safeguard the public?
• If a node in an HFC network experiences congestion, what is the likely impact on service?
• Name two common field service metrics used to measure technician performance.
• In the cable antenna relay service, the over-the-air signal is converted to a frequency in which band?
• What is the minimum horizontal climbing space that must be left to clear?
• Which of the following is NOT listed as an essential headend component?
• For underground service drops, which cable description best fits the required between the tap and ground block?
• What major change in enhanced definition TV improves picture quality over standard definition TV?
• Which devices participate in return path communications across a broadband cable network?
• Which network element is primarily responsible for managing upstream frequency allocation and coordinating upstream channel usage?
• How does IPTV differ from traditional RF cable delivery in how content is transported?
• Which component in the network is defined as the Cable Modem Termination System and what does it do?
• Why is meticulous documentation important in service delivery operations?
• What does CAP add to the emergency alert system?
• What is an SLA in cable service delivery?
• Which concept is essential for ensuring reliable VoIP service on a cable network by prioritizing certain types of traffic?
• What does NTSC stand for in the context of broadcast standards?
• What is the last processing step applied to signals before they are transmitted out of the headend?
• DOCSIS enables data transmission over which medium?
• For a broadband operator with more than 1000 customers, how often must proof of performance testing be conducted?
• Which device is reported to detect a dial tone to trigger signaling in PacketCable signaling?
• How do billing systems interact with service provisioning in a cable operation?
• How should the OTDR be connected to the fiber optic cable?
• What does a digital terminal adapter or DTA stand for?
• What does TDMS stand for in signaling terms?
• In an HFC network, what is a node and how can node problems affect service?
• Installing drop cable across property lines is an example of which concept?
• Which sequence best describes the typical lifecycle of an outage ticket from creation to closure?
• What is the role of a CAM/CI module in content security on a set-top box?
• Before burying an underground drop cable, what critical step must be completed?
• Which outreach activities are typically included under the 1984 act's mandated employment programs?
• Which progression best represents the architecture progression of a fiber optic network?
• Name two common types of connectors used on coaxial cable in cable systems.
• What did the SEC permit broadband cable operators to do after amendments in October 2012 to reduce service theft?
• What term is used for the standard level of an analog audio output from consumer devices?
• For analog TV, which of the following provides the highest video quality among the listed options?
• Which technology enables cable operators to control access to certain services by encrypting the programming?
• What are the consequences for an employer that fails to comply with OSHA standards?
• What is 'drop testing' and why is it performed after installation?
• Why should surface items such as vegetable or flower gardens be avoided when planning the route for an underground drop cable?
• What does the acronym PSTN stand for?
• In field testing, which device is used to verify both continuity and signal levels on coaxial cable?
• How do CA modules or CableCARDs secure access to content at the customer premises?
• Which option lists the three main elements of a broadband cable network?
• The parabolic dish of a TVRO antenna serves to maximize reception by doing what?
• What is adaptive bitrate streaming and where is it used in cable environments?
• Messenger drop wire clamps in aerial drop applications are used to preserve what?
• Which component represents the final link from the distribution network to the customer's premises?
• How often are the NIC and NESC updated?
• When OSHA investigates a claim that an accident resulted from improper training, what is the potential penalty per employee?
• Which aspects of an extension ladder's construction should an inspection include?
• Inside the headend, what are the modulation methods used for video, audio, and color signals?
• How should cable clips be spaced when attaching cable to wood exteriors?
• In aerial installations crossing hedges, which method should you use to install the fiber?
• What year did the Emergency Alert System replace the Emergency Broadcast System?
• Which item would be included in a typical OSHA field personnel standards checklist for a cable operator?
• Why is it recommended to use RCA cables provided by the customer when possible?
• What is the first step when attaching aerial drop cable to a house hook?
• Which system advanced television to high definition?
• Which components should be checked during an extension ladder inspection to ensure safe operation?
• Which sequence represents the progression of fiber optic network architecture from central office toward the home?
• In an aerial fiber optic installation along a path with outbuildings and hedges, which installation method is appropriate?
• What is the CMTS and what is its function?
• When selecting a ground block location, what is a primary consideration?
• What is VoIP and how is it delivered over a cable network?
• Which component typically routes data between cable modems and the IP network?
• Which modulation option is NOT commonly used for upstream data in DOCSIS networks?
• Which metric measures the quality of the received QAM signal?
• What is the typical sequence of steps to provision a new residential service?
• To amplify a fiber optic signal for longer reach, at which wavelength should the laser emit?
• Where can the Digital Video Recorder function be integrated within a cable system?