Avixa CTS Questions and Answers 100% Pass

Avixa CTS Questions and Answers 100% Pass Exceptional Experience Blend of content, technology and emvironment. Allied Industries Mep arch and structural Program phase Sales process - what the customer wants to accomplish Design phase Taking program and create a detailed design and schedule. Install Phase Install, documentation, labeling and adjusting Verify and support Phase Install complete, commissioning, training, support JTA Job, Task, Analysis broken down by CTS - duties and tasks defined: project phases prog design install support and sub tasks (umbrellas) Needs analysis End user needs, applications, tasks ADM analytical decision making BDM basic decision making visual acuity the ability to see fine detail 5minutes of arc Basic decision making BDM 200 BDM acuity factor contrast ratio for BDM 15:1 a group of pixels ADM required drawings 3438 acuity factor plan view and elevation 16:9 aspect ratio 9 divided by 16 or 1.78 Analytical Decision Making ADM 50:1 based on pixel full motion video contrast ratio 80:1 4:3 aspect ratio 4 divided by 3 or 1.33 ratio for diagonal 18.36 3% x acuity factor 200 find EH/IH=Element Height % element height Element Height EH=Fv/AF (200) see 69 farthest viewer calculation FV = 200xEH ADM FV= IH/IR x UHD or 3438 ADM acuity factor 3438 SPL Meter Measures SPL target is same level to all ears +/-3db THD Total harmonic distortion 1% thd Intelligible audio Good direct to reflected ratio that meets desired frequency response. Ohm's Law Relationships between current value and resistance in and electrical circuit. Circuits have: Source, load, conductor Mic Level .002V Line Level .316v Current and resistance R=v/r V/IR Formula for volts P/IV Formula for Powe Power is measured in? Watts I represents: Amps V Volts R means? Resistance or ohms Impedance is expressed in? resistance but expressed with symbol Z. Refers to the load a speaker places on an amp - Important for speakers and power amps Impedance calculation V2/W = Impedence DB is 1/10th of a Bel Decibel logarithmic measurement Db calculation for Power 10log(V/R) Db calculation for Voltage 20log(V/R) Db calculation for Distance 20log(R/V) Professional audio .785v or 0 dBu reference level dBV or 1 v Voltage consumer electronics Voltage: 0 dBu reference 0.775 Vrms Mic level -50 dBu / 0.002V Power is measured by? Watts Current is measured by? Amps Volts is measured in? Volts Impedance calculation V2/P= Z or impedance Full Speaker overlap calculation? D=r Edge to edge speaker overlap? D=2x r (radius) Partial speaker overlap? D=Rx square root of 2 Conduit capacity for 2 cables 31% fill Conduit capacity for 3 or more cables 40% Conduit capacity for 1 cable 53% Signal separation in racks: One signal type per bundle Do not put speaker and microphone cables... In the same conduit to avoid signal distortion Keep cable away from? Electrical signals .002 volts Mic level audio .775 volts Line level audio load safety ratio for equipment install? 5:1 Point source speakers Deliver very loud sound from 1 location (array or cluster) For ISO (most common) rated Hardware what kind of bolts 8.8 for AV install For mounting ASTM and SAE bolts Use no less than Grade 5 Distributed speakers Suspended overhead or installed in ceiling. Node Any device that sends data Every node has a$ MAC address ST Stab and twist connector. 3 common network connections Cat, optical, WiFi Multimode Fiber Shorter cable runs - bundles of info. Not as efficient as single mode for distance. Why is fiber popular? No EMI, high bandwidth, long distance, bend radius is improved, more affordable, more reliable, safer, easy to terminate Single mode fiber Capable of long distance , small core. 569 and 569 cat cables. Blue and brown go together. SC Connector stab and click - Used a lot in AV Lc Small connector Star Lan Nodes Comnet to a central point Mesh network All nodes connect to each other - expensive. Partial mesh is more common. Popular WAN Talks network to network - no longer uses Mac. Uses DNS VLANs Logically separate networks within networks. Devices talk mostly to each other and need to stay secure. Such as signage applications VPN Secure tunnel between LANs - encrypted IP Internet Protocol. The main delivery system for information over the Internet IP address 3 parts - network bit, host bits. Subnet mask IPv4 Subnet Mask In IPv4 addressing, a 32-bit number that, when combined with a device's IP address, indicates what kind of subnet the device belongs to. IPv4 vs IPv6 IPv4: 32-bit number: 4 billion addresses; four sets of numbers marked off by periods IPv6: 128-bit addresses, able to handle up to 1 quadrillion addresses; almost unlimited # of addresses 10. Local large networks 127. Reserved for loop back 255 Reserved Broadcast 224. Reserved multicast 172 Local medium networks (guest) 192 Reserved Small networks 240 Reserved experimental Class b Local address medium 172.16.0.1 Class A large 10.0.0.1 Class C small 192.168.0.1 Broadcast Address Used to communicate with all hosts on the network. DHCP Dynamic Host Configuration Protocol Reserved DHCP Static addresses reserved APIPA (Automatic Private IP Addressing) Kicks in when DHCP fails DNS (Domain Name System) Naming system www (host) Domain (avixa) .org is ? Firewalls hardware, software, or both designed to prevent unauthorized persons from accessing electronic information TCP (Transmission Control Protocol) A connection-oriented, guaranteed-delivery protocol used to send data packets between computers over a network like the Internet. Resends lost packets UDP (User Datagram Protocol) connectionless protocol that does not require a connection to send a packet and does not guarantee that the packet arrives at its destination TCP vs UDP TCP transport is used for logging on, file and print sharing, replication of information between domain controllers, transfer of browse lists, and other common functions. TCP can only be used for one-to-one communications UDP is often used for one-to-many communications, using broadcast or multicast IP datagrams Ports Communication opening - not physical but logical. HDMI (High-Definition Multimedia Interface) Required for connecting devices to show high-definition video replaced analog cables - full bandwidth without compression USB cable Connects portable media (usually) or other hardware directly to computer. AV over IP Ethernet compatible - Uses compression to limit bandwidth - can do uncompressed 4K - no latency Project Manager (PM) Communicates between stakeholders, produce documentation, coordinate activities and resources, obtain sign off approvals. Logic Network/Network Diagram - Provides a graphical depiction of the sequence of project activities - Displays milestones, activities, relationships between activities and critical path - Facilitates plan development, task prioritization, and work-around planning Gantt charts are Popular management bar chart that tracks tasks across time Work Breakdown Structure The hierarchy of project tasks, subtasks, and work packages. Needs analysis Program Meeting to ask open ended questions about Functions, tasks, applications, and site survey Executive Summary Summary of the Program Report