Summary
Summary IT Theory - Networking
- Course
- Institution
Full summary, according to SAGS document, of IEB Information Technology Theory - Networking section.
[Show more]
Seller
Follow
ricciwaksman
Reviews received
Content preview
NETWORKINGNetwork =
nodes connected
by some
type of communication channel
Node= any device connected to a network
Server
= to clients
-
web
a central network computer that provides resources a service - file
I
Client
=
a computer that receives a service proxy
Switch= a device that connects nodes using communication media
Router =
small electronic device that joins computer networks together (that use the same protocols)
Firewall -
Hw+Isw that prevents unauthorised access tol from a private network
Repeater-connects network
segments
+ boosts
signal strength (wo
checking destination (
smart repeater
* it
Bridge =
connects network
segments , boosts signal strength , checks MAC address +
only sends where it needs to
go
NIC (Network Interface Card) =
physical interface/connection btwn computer and network Cable
Types of networks
PAN (Personal Area Network) - individual (personal devices
LAN (Local Area Network) limited location
physical
WAN (wide Area Network) -> different cities /countries interconnected LANS
,
GAN (Global Area Network)
P Worldwide - Internet
Reasons to use networks (/advantages)
↳ communication
↳
access to sharing resources
↳ centralisation
↳ data
transfer
↳
productivity
↳ file
sharing +
storage
↳ network
application
↳
productivity
Disadvantages of networks
↳
security issues
↳
spread of computer viruses
↳ cost
↳
dependency on central servers
,
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ricciwaksman. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.66. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now