Network Devices Flashcards

1
Q

What is a router?

A

A device that forwards traffic between different IP subnets.

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2
Q

What layer of the OSI do routers operate on?

A

Layer three (the network layer)

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3
Q

What is a switch?

A

A common infastructure device that controls the flow of data. A switch determines where traffic should be forwarded based on the MAC address of a device.

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4
Q

What is an ASIC?

A

Application Specific Integrated Circuit which allows for very fast through put.

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5
Q

What is a multilayer switch?

A

It includes routing functionality.

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6
Q

What is an unmanaged device?

A

a switch bought for home that is considered plug and play and does not have any extra configuration options. Theres also very little integration and no management protocols.

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7
Q

What is an unmanaged switch?

A

a switch for a large company or eneterprise.

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8
Q

What is STP?

A

Spanning Tree Protocol. A way to prevent loops in multiple switches. Only available on managed switches.

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9
Q

What is port mirroring?

A

where you can take traffic from one port of the switch and copy all of that traffic to a different port on the switch. Ideally to plug in a port analyzer.

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10
Q

What is SNMP?

A

Simple Network Management Protocol. a way to collect and organize information about managed devices on IP networks.

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11
Q

What is an access point?

A

a device that provides a link between a wireless and wired connection. Also referred to as a bridge.

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12
Q

What is a patch panel?

A

a hardware device that contains ports for connecting and routing cables.

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13
Q

What is a firewall?

A

a network security devices that monitors and filters traffic.

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14
Q

What layer of the OSI does a firewall reside on?

A

Layer 4 (the transport layer)

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15
Q

what is a SOHO device?

A

Small Office Home Office device

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16
Q

What is POE?

A

Power provided on an Ethernet Cable

17
Q

What is the traditional POE?

A

IEEE 802.3af and provides 15 watts of power

18
Q

What POE was created in 2009?

A

IEEE 802.3at and provides 25 watts of power

19
Q

What is the modern standard of POE?

A

POE++ IEEE 802.3bt with a max current of 71.3W

20
Q

What is a hub?

A

A device that was used before switches. Also referred to as a multi port repeater.

21
Q

What is a cable modem?

A

a device that connects your computer to the internet over a coax cable.

22
Q

What is broadband?

A

A highspeed internet connection that is always on and can transmit a large volume of data. Broadband can use different types of connections such as Wi Fi, DSL, fiber, satellite and 4g/5g

23
Q

What is DOCSIS?

A

Data Over Cable Service Interface Specification the standard for sending data over cable networks.

24
Q

What is ADSL?

A

Asymmetric Digital Subscriber Line. uses telephone lines and allows for faster download speed than upload speed.

25
Q

What in ONT?

A

Optical Network Terminal. A device that connects an ISP fiber network to the copper network inside your home

26
Q

What is a NIC?

A

A network interface card. its a hardware component that