INSY 3303 2024 UPDATE COMPREHENSIVE
QUESTIONS AND VERIFIED ANSWERS COMPLETE
STUDY GUIDE GRADE A+
Baselining
when designers must review the list of applications that will use the network and identify
the location of each, and the information is added to the emerging network
documentation
Building Network
The second network architecture component which some vendors call the distribution
layer, because it distributes network traffic to and from the LANs.
Campus Network
The third network architecture component, is usually faster than the backbones we use
inside buildings because it typically carries more traffic than they do.
circuit loading
The amount of data transmitted on a circuit. This analysis can focus on either the
average circuit traffic or the peak circuit traffic.
Content Caching
To store other people's Web data closer to your users. You install a content engine
(also called a cache engine) close to your Internet connection and install special content
management software on the router
-It can save your content to other peoples stuff
Content Delivery
special type of Internet service that works in the opposite direction. Rather than storing
other people's Web files closer to their own internal users
Access Point
a radio transceiver used on wireless LANs that enables the computers near it to
communicate with each other and it also connects them into wired LANs.
Application Architecture
The way in which the functions of application layer software are spread among clients
and servers in a network.
Attenuation
Loss of power in a signal as it travels from the sending device to the receiving device
BN (Main Jobs)
a larger, central network connecting several LANs, other BNs, MANs, and WANs.
Routes and forwards messages, and passes content
o Distribution layer in a building. (Building Network)
o Most common topology: Star Topology
CPE
the equipment that is installed at the customer location
data flow
Data flow is the flow of data between two points. The direction of the data flow can be
described as:
, Simplex : one direction flow ex radio and TV
Half Duplex: both direction ex walkie talkie
Full Duplex: both ways simultaneously.
Dedicated Circuit
are billed at a flat fee per month, and the user has unlimited use of the circuit. Once you
sign a contract, making changes can be expensive because it means rewiring the
buildings and signing a new contract with the carrier. Therefore, they require careful
planning, both in terms of locations and the amount of capacity you purchase
ESP
encrypts IP packet and encapsulates it when the VPN software receives the Packet.
The contents of the ESP packet (the IP packet, the TCP segment, and the HTTP
packet) are encrypted so that no one except the VPN gateway at the office can read
them.
forwarding table
Switch uses these to find out which circuit is connected to what computer. The table
lists the Ethernet address of the computer connected to each port on the switch.
o Used by switches
FTTH
(fiber-to-the-home) is the use of high-capacity fiber-optic cables, rather than coaxial
cables, to connect homes to broader municipal networks
intermodulation noise
special type of cross-talk. The signals from two circuits combine to form a new signal
that falls into a frequency band reserved for another signal.
Internet exchange points (IXP)
how tiers pass information
ISP Tiers
is a company the provides Internet access. The most common ISP is the provider who
delivers Internet to your home or business for a fee. However, there are 3 levels of
ISPs. Tier 1, tier 2, and tier 3 providers
Load Balancer
(also called a virtual server) a device that acts as a traffic manager at the front of a new
server farm
Local loop
wired connection from a telephone company's central office in a locality to its customers'
telephones at homes and businesses.
MIME
A standard for encoding and attaching binary files, images, video, and non-ASCII
character sets within an e-mail message.
Modem/Codec
Communications hardware device that translates the digital data produced by
computers into the analog signals for transmission in today's voice communication
circuits
Modulation
the modification of a carrier wave's fundamental characteristics in order to encode
information
QUESTIONS AND VERIFIED ANSWERS COMPLETE
STUDY GUIDE GRADE A+
Baselining
when designers must review the list of applications that will use the network and identify
the location of each, and the information is added to the emerging network
documentation
Building Network
The second network architecture component which some vendors call the distribution
layer, because it distributes network traffic to and from the LANs.
Campus Network
The third network architecture component, is usually faster than the backbones we use
inside buildings because it typically carries more traffic than they do.
circuit loading
The amount of data transmitted on a circuit. This analysis can focus on either the
average circuit traffic or the peak circuit traffic.
Content Caching
To store other people's Web data closer to your users. You install a content engine
(also called a cache engine) close to your Internet connection and install special content
management software on the router
-It can save your content to other peoples stuff
Content Delivery
special type of Internet service that works in the opposite direction. Rather than storing
other people's Web files closer to their own internal users
Access Point
a radio transceiver used on wireless LANs that enables the computers near it to
communicate with each other and it also connects them into wired LANs.
Application Architecture
The way in which the functions of application layer software are spread among clients
and servers in a network.
Attenuation
Loss of power in a signal as it travels from the sending device to the receiving device
BN (Main Jobs)
a larger, central network connecting several LANs, other BNs, MANs, and WANs.
Routes and forwards messages, and passes content
o Distribution layer in a building. (Building Network)
o Most common topology: Star Topology
CPE
the equipment that is installed at the customer location
data flow
Data flow is the flow of data between two points. The direction of the data flow can be
described as:
, Simplex : one direction flow ex radio and TV
Half Duplex: both direction ex walkie talkie
Full Duplex: both ways simultaneously.
Dedicated Circuit
are billed at a flat fee per month, and the user has unlimited use of the circuit. Once you
sign a contract, making changes can be expensive because it means rewiring the
buildings and signing a new contract with the carrier. Therefore, they require careful
planning, both in terms of locations and the amount of capacity you purchase
ESP
encrypts IP packet and encapsulates it when the VPN software receives the Packet.
The contents of the ESP packet (the IP packet, the TCP segment, and the HTTP
packet) are encrypted so that no one except the VPN gateway at the office can read
them.
forwarding table
Switch uses these to find out which circuit is connected to what computer. The table
lists the Ethernet address of the computer connected to each port on the switch.
o Used by switches
FTTH
(fiber-to-the-home) is the use of high-capacity fiber-optic cables, rather than coaxial
cables, to connect homes to broader municipal networks
intermodulation noise
special type of cross-talk. The signals from two circuits combine to form a new signal
that falls into a frequency band reserved for another signal.
Internet exchange points (IXP)
how tiers pass information
ISP Tiers
is a company the provides Internet access. The most common ISP is the provider who
delivers Internet to your home or business for a fee. However, there are 3 levels of
ISPs. Tier 1, tier 2, and tier 3 providers
Load Balancer
(also called a virtual server) a device that acts as a traffic manager at the front of a new
server farm
Local loop
wired connection from a telephone company's central office in a locality to its customers'
telephones at homes and businesses.
MIME
A standard for encoding and attaching binary files, images, video, and non-ASCII
character sets within an e-mail message.
Modem/Codec
Communications hardware device that translates the digital data produced by
computers into the analog signals for transmission in today's voice communication
circuits
Modulation
the modification of a carrier wave's fundamental characteristics in order to encode
information
