Your SlideShare is downloading. ×
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Tech Blast: Networks
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Tech Blast: Networks

2,325

Published on

Presented at the NLC Tech Rodeo on the campus of Doane College in Crete, NE 26-28 June 2012. …

Presented at the NLC Tech Rodeo on the campus of Doane College in Crete, NE 26-28 June 2012.
http://nlcblogs.nebraska.gov/techrodeo

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
2,325
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Tech Blast: Networks Michael Sauers Tech Rodeo Doane College, 26-28 July 2012
  • 2. RouterA router is a device that forwards datapackets between computer networks,creating an overlay internetwork. Arouter is connected to two or more datalines from different networks. When adata packet comes in on one of the lines,the router reads the address informationin the packet to determine its ultimatedestination. Then, using information inits routing table or routing policy, itdirects the packet to the next network onits journey. Routers perform the "trafficdirecting" functions on the Internet. Adata packet is typically forwarded fromone router to another through thenetworks that constitute theinternetwork until it gets to itsdestination node.
  • 3. SwitchA switch is a telecommunication devicewhich receives a message from any deviceconnected to it and then transmits themessage only to that device for which themessage was meant. This makes the switcha more intelligent device than a hub (whichreceives a message and then transmits it toall the other devices on its network.) Thenetwork switch plays an integral part inmost modern Ethernet local area networks(LANs). Mid-to-large sized LANs contain anumber of linked managed switches. Smalloffice/home office (SOHO) applicationstypically use a single switch, or an all-purpose converged device such as aresidential gateway to access smalloffice/home broadband services such asDSL or cable internet.
  • 4. Ethernet Cables• Cat-5 – 10 or 100 Mbps• Cat-5e – Up to 1 Gbps• Cat-6 – Up to 10 Gbps
  • 5. Networking Protocols• TCP/IP • SAMBA – IP address – Used for communicating – Internal vs. External between Linux & – Dynamic (DHCP) vs. Windows computers on Static a LAN• DNS – Domain Name Server• HTTP/HTTPS
  • 6. WiFi• Versions – b (up to 11 Mbps) – g (up to 54 Mbps) – n (up to 150 Mbps) – ac (up to 866.7 Mbps)• SSID – Service Set Identifier• Security – WEP – WPA
  • 7. WiFi Continued• Distance matters• Channels• Access Points / Repeaters / Extenders
  • 8. Power Line NetworkingPower line communication(PLC) is a system forcarrying data on aconductor that is alsoused for electric powertransmission.200 or 500 Mbps
  • 9. FirewallA firewall can either be software-based or hardware-based and is usedto help keep a network secure. Itsprimary objective is to control theincoming and outgoing networktraffic by analyzing the data packetsand determining whether it shouldbe allowed through or not, based ona predetermined rule set. Anetworks firewall builds a bridgebetween an internal network that isassumed to be secure andtrusted, and anothernetwork, usually an external(inter)network, such as theInternet, that is not assumed to besecure and trusted.
  • 10. NASNetwork-attached storage (NAS) isfile-level computer data storageconnected to a computer networkproviding data access toheterogeneous clients. NAS not onlyoperates as a file server, but isspecialized for this task either by itshardware, software, or configurationof those elements. NAS is oftenmade as a computer appliance – aspecialized computer built from theground up for storing and servingfiles – rather than simply a generalpurpose computer being used for therole.
  • 11. Thanks! Michael Sauersmichael.sauers@nebraska.gov diane.r.wells@nebraska.gov

×