Network Devices Flashcards
Routers
* Routes traffic between __ ____
Which layer of the OSI model
IP subnets:divide a larger network into smaller, more manageable segments
Internet Protocol subnetworks
Layer 3 Network Layer
Routers connect IP subnets using the same topology but they also connect __ __ __ __
LAN “Local Area Network.
, WAN “Wide Area Network
, copper, fiber
A Switch determines where traffic should be forwarded based on ____
Destination MAC address
(Media Access Control) address
Switches have _____ (ASIC)
form factor___
Power_____
Application-specific integrated circuit
designed to perform a specific application or function.
Small form factor
low power
Switches may provide PoE
stands for ____
Power over Ethernet
technology that allows electrical power to be transmitted alongside data over Ethernet cables. It was developed to simplify the deployment of network devices, particularly in situations where it may be challenging or impractical to provide a separate power source for those devices.
Layer 3 switch or multilayer switch refers to
a switch that includes routing functionality
Unmanaged switches have very few_____
No_____
configurations
VLANs
Virtual Local Area Network, is a network technology that allows you to logically segment a physical network into multiple virtual networks. Each VLAN operates as if it were its own separate network, even though the devices may physically share the same network infrastructure, such as switches and cables.
Unmanaged switches don’t have SNMP
Stand for _____
network admins can’t _____
Simple Network Management Protocol
can’t query performance reports out of switches
What is a VLAN
Virtual Local Area Network)
create logical, isolated networks within a physical network infrastructure.VLANs enable the segmentation of a larger network into smaller, separate broadcast domains, even if the devices are physically connected to the same network equipment, such as switches
A managed switch allows different interfaces to be of different IP subnets (VLANs)
what does this mean
it means that the switch can support the creation and management of multiple isolated network segments within a single physical switch. Each of these isolated segments is referred to as a VLAN (Virtual Local Area Network), and they can have distinct IP address ranges, effectively creating separate logical networks.
Can you configure traffic prioritization on a managed switch
Yes
Ex. voice traffic gets a higher priority
- Redundancy support
– Spanning Tree Protocol (STP)
What is it how does it help
you need a ____ to have this feature
is a network protocol used to prevent loops in Ethernet networks, particularly in networks with redundant links between switches.
Managed switch
What is the protocol used to prevent network loops
STP
Spanning tree protocol
What is port mirroring in managed switches
a way to monitor network traffic passing through a switch/ports
used for troubleshooting something that may have gone wrong with a package
copies network traffic from one or more source ports to a designated destination port, which is typically connected to a monitoring device,
What is an access point
makes forwarding decisions backed on __
It connects to the wifi router via eithernet cable and placed throughout the office to Extend the wifi to devices further from the router
Makes forwarding decisions based on MAC address
What is a patch panel
- Combination of punch-down blocks and RJ-45 connectors
- Runs from desks are made once
The median between computers and switches
Which layer in the open system interconnection model is a firewall a part of
Layer 4 transport layer
(TCP/UDP)
Firewalls filter what can pass through base on an access control list, what this list consists of is determined by the network admin this include which
_______ and _____ will be allowed though
Some firewalls can filter based on _____
In those cases the firewall would be considered a layer_____
IP addresses and port numbers
Some firewalls can filter based on the application
Layer 7 the Application Layer
Firewalls can ___ traffic into/out of the network
They can ____ traffic
They can also act as a ____ making them a layer ____ as well
Encrypt
Proxy
Router
Layer 3
either-net cables can also ____ PoE
Often the power comes from the ____ we refer to this as ___ _____
If the _____ doesn’t support PoE you’ll need something in the middle of that connection we refer to in this as PoE ____ and often referenced as ___
Power over ethernet
Switch
end span
switch
Injector
mid span
before there where switches we commonly used ____ to connect our devices
Also known as a ____
Hub
Muli-port repeater– Traffic
Hubs
Everything is half__
becomes less efficient as __
Hubs are available in ____ and ____ speeds
half-duplex:efers to a mode of communication where data transmission can occur in only one direction at a time on a network segment
traffic increases* Difficult to find today*
10 megabit / 100 megabit
Cable modems allow you to communicate over ____
Is there more then one signal being used over the same wire?
Broadband
Yes
you use this modem for internet through your cable provider
A ADSL modem is used for internet provided via ___ company
Uses ___ lines for internet ________ is faster than the ________ (asymmetric)
_______ foot limitation from the central office (CO)
Speed downstream?
speed upstream?
Asymmetric Digital Subscriber Line)
Phone
phone
Download speed is faster than the upload
speed (asymmetric)
10k
52megabit downstream
16 megabit upstream
