Network Devices Flashcards
What may be composed of a number of different devices in order to function?
Physical Network
What layer can you find a switch?
Layer 2 (Data Link)
What layer can you find a router?
Layer 3 (Network)
What layers can you find firewalls?
Data Link (Layer 2), Network (Layer 3), Transport (Layer 4), Session (Layer 5) and Application (Layer 7)
What network device is necessary for sending and receiving data?
Modem
What network device allows computers to transport digital information over analog lines, such as phone or cable lines?
Modem
What network device is the point of connection between two or more networks that forwards data packets between the networks?
Router
What network device do you need to connect networks (like the internet) in your home?
Router
What network device is used to connect devices in a specific network and allows them to communicate efficiently within the network?
Switch
What network device is a more complex version of a hub that have the capability to add secure messages and sending traffic to the receiver without the other devices being aware of the communication?
Switch
What network device allows for more simultaneous conversations between devices?
Switch
What network devices is similar to a router in that it connects two or more elements?
Bridge
What network device is different from a router in that it simply forwards data packets to the next network without analysis?
Bridge
What network device is not widely used in modern networks because of the use of routers and switches as the forwarding devices?
Bridge
What network device is used to strengthen, replicate, and regenerate signals that are weakened during transmission?
Repeater
What is a form of the network device known as a repeater that takes a distorted WI-FI signal and transmits it to a formerly dead zone?
Range Extender
What network device connects the router to the network, takes the data packets from the router, and sends them to all the devices connected on the network?
Hub
What network device connects to your computer and receives data packets to be transmitted to multiple devices connected to your computer?
USB Hub
What layer of the OSI model would you find the modem, hub, and repeater?
Layer 1 (Physical)
What layer of the OSI model would you find the modem, switch, or bridge?
Layer 2 (Data Link)
What layer of the OSI model would you find the switch and/or router?
Layer 3 (Network)
What does the UTP stand for in UTP cables?
Unshielded Twisted Pair
What cables are created when pairs of wires are twisted around each other to protect and cancel out interference from each other and outside sources?
UTP cables
Who invented UTP cables in 1881?
Alexander Graham Bell
How many different standard types of UTP cables are there?
Six
Who defines the type of UTP cable?
TIA/EIA 568
How can you tell the type of UTP cable?
writing on the cable itself
What type of UTP cable supports up to 10 Mbps for up to 100 meters and is commonly used in phone lines today?
Cat 3
What type of UTP cables support up to 16 Mbps for up to 100 meters and is not commonly used today>
Cat 4
What type of UTP cable used Ethernet LANs containing two twisted pairs allowing up to 100 Mbps up to 100 meters between the device and the hub, switch, or router.
Cat 5
What type of UTP cable replaced Cat 5 and doubles the number of twisted pairs up to 4 to allow up to 1 Gbps up to 100 meters?
Cat 5e
What type of UTP cable is also used in Ethernet LANs and datacenters that are made up of 4 tightly woven twisted pairs and supports up to 1 Gbps for up to 100 meters or 10 Gbps for up to 55 meters?
Cat 6
What type of UTP cable is an improvement over the Cat 6 with the ability to run 10 Gbps up to 100 meters and uses a higher quality cable that is more resistant to interference?
Cat 6a
What type of UTP cable is most commonly used in wired networks today?
Cat 6a
Name two of the different connectors that can be connected to the end of the UTP cables?
RJ11 and RJ45
What UTP connector supports two pairs of wire (4) and is commonly used in phones today?
RJ11
What UTP connector usually works with Ethernet cables and supports four pair of wires (8)?
RJ45
What type of cable uses glass or plastic threads within the cable to transfer the data using light instead of electricity?
Fiber-Optic Cables
How does Fiber-Optic cable transfer data?
Digitally
How does data transfer over metal cables?
By converting between binary and analog
Which type of cable is the most expensive?
FIber-Optic Cable
What are the two types of fiber-optic cables?
Single Mode and Multimode
What type of fiber optic cable is made up of a single glass of plastic fiber and has the ability to carry higher bandwidth for up to 50 times the distance of the other type of fiber optic cable?
Single mode
What type of fiber optic cable are the widest in diameter, are highly effective for medium distances (500 meters or less), and are generally used within a LAN?
Multimode
What are two of the type of fiber optic connectors?
ST and LC
What fiber optic connector was most commonly used until the mid 2000s?
ST
What does the ST mean in a fiber optic connector?
Straight Tip
What type of fiber optic connector is a smaller version of its predecessor and supports more parts to be used in the same space?
LC
What does the LC stand for in regards to the LC connector in fiber optic cables?
Lucent Connector
What type of cable was patented by Oliver Heaviside in 1880?
Coaxial Cable
What type of cable is mostly used by cable companies today and not in networking?
Coaxial
What type of cable is used to connect two computing devices together?
Crossover
What type of cable uses Network Interface Controllers (NIC) or switches?
Crossover
What type of cabling has a transmit connector that is connected to a receive connector on a second device?
Crossover
What is used to connect a device to a wall outlet?
Patch
In a what is a wall outlet wired to another panel in the network closet that is wired into a switch?
Patch
What does the ToR stand for in a ToR switch?
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