IDENTIFICASYON Flashcards
Refers to a group of devices on a specific network segment that hear all
the broadcasts sent out on that specific network segment.
Is usually a boundary delimited by physical media like switches and
routers, the term also refers to a logical division of a network segment,
where all hosts can communicate via a Data Link Layer, hardware
address broadcast
BROADCAST
DOMAIN
The ______ layer controls user and workgroup access to internetwork
resources. The _____ layer is sometimes referred to as the desktop
layer. The network resources most users need will be available locally
because the distribution layer handles any traffic for remote services
ACCESS LAYER
The _____ layer is sometimes referred to as the workgroup layer
and is the communication point between the access layer and the core.
The primary functions of the _____ layer are to provide routing,
filtering, and WAN access and to determine how packets can access the
core, if needed.
The ________ layer must determine the fastest way that network
service request is handled-for example, how a file request is forwarded
to a server.
DISTRIBUTION
LAYER
Is a piece of data created and attached data field in transport layer
SEGMENT
The cable allows for very fast transmission of data, is made of glass (or
even plastic!), is very thin, and works as a waveguide to transmit light
between two ends of the fiber.
______ has been used to go very long distances, as in
intercontinental connections, but it is becoming more and more popular
in Ethernet LAN networks due to the fast speeds available and because,
unlike UTP, it’s immune to interference like cross-talk
FIBER OPTIC
Is more expensive, has a tighter cladding, and can go much father
distances than multimode. The difference comes in the tightness of
cladding, which makes a smaller core, meaning that only mode of light
will propagate down the fiber.
SINGLE MODE
Is looser and has a larger core so it allows multiple light particles to travel
down the glass.
MULTIMODE
The _____ layer is literally the core of the network
Responsible for transporting large amounts of traffic both reliably and
quickly.
_____ layer is to switch traffic as fast as possible.
CORE LAYER
MAC frame format it provides error detection from a cyclic redundancy
check (CRC)
(MAY ALGORITHM)
Cyclic Redundancy
Check (CRC)
Is assigned by the IEEE to an organization. It’s composed of 24 bits, or
3 bytes, and it in turn assigns a globally administered address also made
up of 24 bits, or 3 bytes, that’s supposedly unique to each and every
adapter an organization manufacturer.
Organizationally
Unique Identifier
(OUI)
Is the standards body that creates the physical layer specifications for
Ethernet.
Specifies that ethernet use a registered jack (RJ) connector on
unshielded twisted-pair (UTP) cabling (RJ45). But the industry is moving
toward simply calling this an 8-pin modular connector
Electronic Industries
Alliance and the
newer
Telecommunications
Industry Association)
EIA/TIA
Is a contention-based media access method that allows all hosts on a
network to share the same link’s bandwidth.
____ uses both Data Link and Physical Layer specifications,
presented with information relative to both layers, and need to effectively
implement, troubleshoot, and maintain an Ethernet Network.
______ at the Data Link Layer is responsible for Ethernet addressing,
commonly referred to as MAC or hardware addressing.
_____ is also responsible for framing packets received from the
Network layer and preparing them for transmission on the local network
through the Ethernet contention-based media access method.
ETHERNET
Are placed in a value spot, starting at the right and moving left, with each
spot having double the value of the previous spot.
The typical decimal format being the base -10 number.
BINARY NUMBER
The use to limit either 1 or 0
BINARY DIGITS
Is group either 4 or 8 bits together
NIBLE AND BYTE
The _____ cable can be used to connect the following devices:
o Switch to switch
o Hub to hub
o Host to host
o Hub to switch
o Router direct to host
o Router to router
CROSSOVER CABLE
The _______ cable is used to connect the following devices:
o Host to switch or hub
o Router to switch or hub
Four wires are used in _____ cable to connect Ethernet
devices. It’s relatively simple to create this type, and shows the four wires
used in a straight-through Ethernet cable.
STRAIGHT THROUGH
CABLE
Isn’t used to connect any Ethernet connections together, you can use a
______ ethernet cable to a router console serial communication (COM)
port.
If you have a cisco router or switch, you would use this cable to connect
your PC, Mac, or a device like an iPad to the Cisco hardware.
Eight wires are used in this cable to connect serial devices, although not
all eight are used to send information, just as in Ethernet networking.
ROLLED CABLE
_____ refers to a network scenario wherein one device sends
a frame out on a physical network segment forcing every other device on
the same segment to pay attention to it.
This is bad because if two devices on a single physical segment just
happen to transmit simultaneously, it will cause a collision and require
these devices to retransmit.
COLLISION DOMAIN
Is responsible for combining bits into bytes and bytes into frames.
DATA LINK LAYER
