netacad.com
NetAcad offers training on technology and networking. It helps prepare many individuals for their careers because it trains them virtually in every type of industry.
Ideally, Cisco. I did the course through college. http://www.cisco.com/web/learning/netacad/index.html
You get one by signing up at Cisco. Here is a site that will answer some questions about the discount vouchers: http://www.cisco.com/web/learning/netacad/downloads/pdf/FAQ_CCNA_Security_Student_Voucher_Pilot.pdf
Yes, among other reputable websites, the official Cisco webpage http://www.cisco.com/web/learning/netacad/index.html offers courses and certification online.
To help you obtain your CCNA certification go to www.cisco.com/web/learning/netacad/course_catalog/CCNP.html for all the information you need on the courses offered to help you reach your objective.
CISCO offers training by signing up in their website. Register and start training for CCNA. Here is their website for more information: http://www.cisco.com/web/learning/netacad/index.html
you can gain the information you want at http://www.cisco.com/web/learning/netacad/course_catalog/CCNAexploration.html they explain everything you need to know about CCNA courses well and you can sign up there as well.
The following link contains information on the ccna exam price. The provider is Cisco, which is one of the most reputable companies in the field. http://www.cisco.com/web/learning/netacad/downloads/pdf/FinalFAQ_June24_PriceChange.pdf
Cisco vouchers are a type of certificate you earn for passing your Cisco training with a grade of 75% or higher. For more information try this website: http://www.cisco.com/web/learning/netacad/career_connection/promoteIT/resourcecenter/docs/DS_Free_Cert_Exam_Voucher_Instr.pdf
You should look for a fully inclusive course that will give you all the training required for the job. Most CCNA courses are quite expensive, ranging upwards from $1900. Cisco offers affordable training and person-to-person teaching. http://www.cisco.com/web/learning/netacad/index.html
Wireless networks use the CSMA/CA access method, which is less secure than CSMA/CD.**Edit** The above information is not relevent to how secure a network is. It is however relevant to certain topologies in the infastructure of a network**The correct answer is… Wireless networks transmit data over the open space.The above answer is correct.However, if properly secured a wireless network is much much stronger than one might think.I am a no0b here so if I did anythingincorrect in revising or adding to this post I apologize and encourage an Admin to message me and set me straight. Thank you.Teddy LammMCSE Security SpecialistMCSA Security SpecialistCCNAA+/Network+/Security+Proof:This item references content from the following areas:CCNA Exploration: LAN Switching and Wireless7.2.1 Threats to Wireless SecurityWhy are wireless LAN networks more vulnerable than wired Ethernet networks?Wireless network bandwidth is much slower.Wireless networks transmit data over the open space.Wireless signals share the same RF frequencies as household devices.Wireless networks use the CSMA/CA access method, which is less secure than CSMA/CD.Observable Description Max Value Earned Value2 points for 'Option 2'0 points for any other optionTaken from the cisco netacad site, of which I am a member.