Waves, Frequencies, and RF Waves – Wireless starts and ends with waves, specifically radio waves.

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CCNA Wireless Study Guide

ISDN Integrated Services Digital Network, a circuit-switching network used for voice, data and video transfer over existing copper telephone lines.

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Integrated Services Digital Network (ISDN)

In the Global Knowledge/TechRepublic 2010 Salary Survey, conducted at that end of last year, one of the questions put to respondents was “What skill set will your company be looking to add in 2010?” The skills listed by respondents include the perennial favorites: security, network administration, and Windows administration. Also included are virtualization/cloud computing and Web development. Meanwhile, an old favorite, business analysis, makes a come back

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Top 10 Skills in Demand in 2010

www.ccna4u.org CCNA3 Final – 04 March 2010 (Thanks dip see ) Welcome and get lastest CCNA Exploration 4.0 Questions and answers Email: quocvuong.it@gmail.com Website: www.ccna4u.org www.ccna4u.net www.ccna4u.info 1 Which value determines if a switch becomes the central point of reference in the spanning tree topology? lowest bridge ID highest revision number lowest numeric IP address highest numeric MAC address 2 Refer to the exhibit

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CCNA3 Final – 04 March 2010

By azaghul Building a CCNA-Voice Lab There are a lot of questions surrounding recommendations/suggestions for building a CCNA-Voice Lab. No, this won’t be a definitive guide, as there are many possible roads to travel and variations on a theme. But it might give you ideas for what is needed, what the course topology is, what could be added, and what is possible

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CCNA Voice Lab (for the home)

By studyshorts : My CCNA Security study notes were very well received, I had lots of positive feedback and it has been downloaded about 160 times. I thought it was about time I did the same to the notes I put together from when I was studying for CCNA Voice, well here they are.

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CCNA Voice Study Notes

CCNP SWITCH 642-813 Official Certification Guide is a best-of-breed Cisco® exam study guide that focuses specifically on the objectives for the CCNP® SWITCH exam. Network architect and best-selling author Dave Hucaby shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills

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Cisco Press – CCNP SWITCH 642-813 Official Certification Guide

CCNP TSHOOT 642-832 Official Certification Guide is a best-of-breed Cisco® exam study guide that focuses specifically on the objectives for the CCNP® TSHOOT exam. Senior instructor and best-selling author Kevin Wallace shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills

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Cisco Press – CCNP TSHOOT 642-832 Official Certification Guide

Here are some Free Subnetting Work sheets shared by us with permission from author Dale Henninger who teaches network and security classes at Inver Hills Community College. I am attaching the subnetting worksheets.

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Free Subnetting Worksheets, Subnetting Practice Sheets with Answer Key

SWITCH ADDRESS: · Config# ip address 192.168.10.2 255.255.255.0 · Config# ip default-gateway 192.168.10.1 DUPLEX MODE: · Config# interface Ethernet 0/5 – “fastethernet” for 100 Mbps ports · Config-if# duplex full – also, half | auto | full-flow-control SWITCHING MODE: · Config# switching-mode store-and-forward – also, fragment-free MAC ADDRESS CONFIGS: · Config# mac-address-table permanent aaab.000f.ffef e0/2 – only this mac will work on this port · Config# mac-address-table restricted static aaab.000f.ffef e0/2 e0/3 -port 3 can only send data out port 2 with that mac -very restrictive security · Config-if# port secure max-mac-count 5 – allows only 5 mac addresses mapped to this port VLANS: · Config# vlan 10 name FINANCE · Config# interface Ethernet 0/3 · Config-if# vlan-membership static 10 TRUNK LINKS: · Config-if# trunk on – also, off | auto | desirable | nonegotiate · Config-if# no trunk-vlan 2 -removes vlan 2 from the trunk port -by default, all vlans are set on a trunk port CONFIGURING VTP: · Config# delete vtp – should be done prior to adding to a network · Config# vtp server – the default is server, also client and transparent · Config# vtp domain Camp – name doesn’t matter, just so all switches use the same · Config# vtp password 1234 – limited security · Config# vtp pruning enable – limits vtp broadcasts to only switches affected · Config# vtp pruning disable FLASH UPGRADE: · Config# copy tftp://192.5.5.5/configname.ios opcode – “opcode” for ios upgrade, “nvram” for startup config DELETE STARTUP CONFIG: · Config# delete nvram

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Cisco IOS Cheat Sheet – CATALYST COMMANDS