networks
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- Created by: rose.de
- Created on: 01-03-23 11:18
difference between a LAN and WAN?
WAN is multiple LANs connect via routers, covering a larger geographical area
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which piece of hardware allows a device to connect to a LAN?
network interface card
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what is the function of a switch?
transmit data to a device on the network using the MAC address
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how is a router different to a switch?
router directs packets between networks and connects multiple LANs
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what does MAC stand for?
media access control
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what is the main advantage of UTP cables?
pairs of cables with the individual function, separate for receiving and transmitting data which increases the speed
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how do fibre optic cables transmit data?
light
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what kind of networks use radio waves to transmit data?
wireless
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biggest disadvantage of wireless networks?
security is more of a risk
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what is bandwidth?
the amount of data that can be transferred in a given time (measured in bits per second)
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how does latency affect the performance of networks?
congestion means a lower bandwidth so less data can be transmitted in a given time
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what is the relationship between a client and server in a client server network?
the client sends the server requests which the server then processes and responds to
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why could a peer to peer network be considered better than a client server network?
easy to maintain with no dependency on a server
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how are the nodes connected to the switch in a star topology?
all nodes are connected to a central switch
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what is the topology called where all devices are directly connected to all other devices?
mesh topology
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what are computers that are not connected to any network called?
stand alone computer
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a home router acts as what 3 pieces of hardware?
switch, router and wireless access point
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on a peer to peer network what is the connection between 2 peers called?
logical connection
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when is the error rate increased?
less reliable connections
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what is the most widely known WAN?
the internet
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what is the different between the world wide web and the internet?
the internet is the hardware connecting the network whereas the world wide web is just a service found on the internet
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what is the most common function of a web server?
hosting web pages
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what is the cloud?
a server used to store data and programs that can accessed and used over the internet
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what is the purpose of DNS?
to translate the human readable URL into an IP address which can be read by the web server
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what does DNS stand for?
domain name server
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how is data transmitted over LANs?
in frames
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how can bluetooth be used?
to connect 2 devices within a 10m range
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how are wireless networks identified?
service set identifier
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how is data broadcast on a wireless network decrypted?
using the master key
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what is the format of a MAC address?
12 digits, written as 6 pairs, separated by colons
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what is the purpose of MAC addresses?
each NIC has one to route frames to on a LAN
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what is an IP address?
internet protocol, a unique number used to address a node or host computer communicating over the internet
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what is the format of IPv4?
written as 4 numbers separated by period, 2 parts of the network and the host identifier
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what are standards and an example?
set of specifications for hardware or software making it possible for manufacturers to create products and services that are compatible with each other (for example character sets)
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what is a protocol?
set of rules that allows 2 devices to communicate
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which 2 protocols between 2 routers allowing them to communicate over LAN and WAN?
transmission control protocol and internet protocol
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what is the difference between HTTP and HTTPS?
https is secure (encryption and authentication)
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which protocol is used for transmission of files on WAN?
file transfer protocol
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what does SMTP stand for?
simple mail transfer protocol (used for sending emails)
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what are the 2 protocols used for receiving emails?
POP and IMAP
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what is the purpose of layering?
reduces complexity by dividing complex tasks into simpler ones that work together
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Other cards in this set
Card 2
Front
which piece of hardware allows a device to connect to a LAN?
Back
network interface card
Card 3
Front
what is the function of a switch?
Back
Card 4
Front
how is a router different to a switch?
Back
Card 5
Front
what does MAC stand for?
Back
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