January 2013
Beginner to intermediate
576 pages
14h 1m
English
book
CCENT Cisco Certified Entry Networking Technician Study Guide: (ICND1 Exam 640-822), 2nd Edition
by Todd Lammle
Content preview from CCENT Cisco Certified Entry Networking Technician Study Guide: (ICND1 Exam 640-822), 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 8: Wireless Technologies
- C, E. WPA uses PSK to perform authentication and can use either static or dynamic encryption keys. The benefit of WPA over static WEP keys is that WPA can change dynamically while the system is used.
- C. The IEEE 802.11b and IEEE 802.11b both run in the 2.4GHz RF range.
- D. The IEEE 802.11a standard runs in the 5GHz RF range.
- C. The IEEE 802.11b and IEEE 802.11b both run in the 2.4GHz RF range.
- B. 802.11b uses Direct Sequence Spread Spectrum (DSSS) technology.
- A. The IEEE 802.11g standard provides three non-overlapping channels.
- A. The IEEE 802.11b standard provides three non-overlapping channels.
- A, B. Instead of bounded media using digital signaling, 802.11 wireless LANs use unbounded media, and analog signaling ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.