Networked AV Systems

If text will be displayed during a presentation, the farthest viewer distance should be no more than ?

150 times the height of the text

How can you address ambient noise issues in a room?

Use acoustically absorptive materials in the room

Bit depth is defined as the number of states you have in which to describe the sampled signals _________

Voltage level

In order to accurately capture an analog signal, the minimum sampling rate must be _______ the frequency being sampled ?

at least twice

Which of the following statements accurately describes L2TP?

is a layer 5 protocol that allows remote users to establish a VPN tunnel using only a web browser.

Ambient light can be described as _____

light in the presentation environment other than the displayed light

A two conductor circuit is said to be balanced if _____

the conductors impedance are the same with respect to ground and each other

HDCP is a protocol supported by _____

Display port, DVI, and HDMI

The required height of a display should be based on________

Farthest viewer distance and viewer task

Domain Name System (DNS) is used to convert a ________to an IP address.

Fully Qualified Domain Name (FQDN)

What is a logic network diagram used for in AV management activities?

Helps in sequencing project milestones

The digital waveform is represented by a ________.

Square wave

______firewalls monitor addresses, ports and connection data to determine if a packet is part of an existing communication stream or a new stream.

Stateful

Which of the following best describes a function of a Network Address Translation (NAT)

-Allows multiple computers on a network to connect to the Internet using a single IP address -Converts IPv4 addresses to IPv6 -Enables devices with unregistered IP addressees to connect to the Internet

Which of the following best describes the function of Address Resolution Protocol (ARP)?

ARP matches IP addresses to the appropriate link layer addresses

Telnet and Secure Shell (SSH) operate at which layer of the OSI Model?

Application Layer

Which signal processor best compensates for the sound pressure level differences between loud and soft spoken presenters ?

Automatic gain controller

________ determines the range of frequencies that can pass through a circuit.

Bandwidth

A multiplayer switch is so named because it ______

Can perform functions at OSI Model Layers 2,3 and sometimes higher

Audioconferencing equipment includes either line or acoustic echo_________technology.

Cancellation

A ______ is a piece of equipment or software that uses an algorithm to decode or encode a signal.

Codec

_______ is/are a common firewall feature and /or security device that can block restricted websites or content

Content filtering

Which of the following statements accurately describes IPv6?

IPv6 uses three types of addresses: unicast, multicast and anycast

______ conferencing uses a switched telephone network to simultaneously share voice, video, and data among participants.

ISDN

Which of the following statements best describes the function of the proxy sever?

It replaces a clients address and other identifying information with its own before forwarding the clients request to a remote host

A ______is hardware or software that is designed to divided network activity between multiple hosts

Load balancer

MP3 and MPEG-4 files are examples of files using ______ compression

Lossy

Configuring a firewall for security may involve ______

Manually allowing and denying services and ports

Fault tolerance is best addressed by which network topology?

Mesh

If supported by the equipment, VLANs allow

Multiple separate broadcast domains to be defined on the same equipment

_____ is a general term for all protocols, polices, software and hardware that manage access to a network .

Network Access Control (NAC)

Bit rate is a measurement of the quantity of information ______in a digital signal stream and quantified in bits per second.

Over time

_____is a bandwidth optimization method that allows a network administrator to assign classes to certain types of traffic to ensure that bandwidth is available for high priority traffic

Quality of Service (QoS)

A_____examines the contents of a physical layer payload and then forwards packets to the appropriate address using the best available path.

Router

In order to securely connect to a remote host to execute command line commands, a network administrator would use ____

SSH

IPsec and SSL/TLS can be used for ______

Secure VPN connections

In the program phase, what must be determined to assure that a functional AV system scope will be created?

The specific tasks, functions, and applications of the end users

_______transport is preferable for live streaming video applications.

UDP (User Datagram Protocol

The use of an RCA connector, or phono connector, indicates a _____ circuit.

Unbalanced