Summary

16 IT Essentials: PC Harware and Software Companion GuideTable 9-2FAT32 and NTFS ComparisonFAT32NTFSSecurity Little security File- and folder-level permissions,encryptionCompatibility Compatible with Windows Compatible only with95/98/Me. Can be read/written Windows (NT, XP, Vista).to by Linux users as well. Linux/UNIX read-only.File SizeLimit of 4-GB files/32-GB volumes Limit of 16-terabytefiles/256-terabyte volumesFiles Per Volume 4.17 million 4.29 billion (4,294,967,295)File Size Efficiency Large clusters waste some space. Smaller clusters use moreof the available space.Built-in compression maximizesspace.Reliability File allocation tables (FAT) are New Technology Filenonjournaling (do not record file System (NTFS) includestransfer history for use in journaling to rebuild afterreconstruction after errors). errors.Describe Wireless Security TechniquesTraffic flows through radio waves in wireless networks, so it is easy for attackers to monitorand attack data without having to connect to a network physically. Attackers gain access toa network by being within range of an unprotected wireless network. A technician needs toknow how to configure access points and wireless network interface cards (WNIC) to anappropriate level of security.When installing wireless services, you should apply the following wireless security techniquesimmediately to prevent unwanted access to the network:■■Wired Equivalent Privacy (WEP) was the first-generation security standard for wireless.Attackers quickly discovered that 64-bit WEP encryption was easy to break.Monitoring programs could detect the encryption keys used to encode the messages.After the keys were obtained, messages could be easily decoded. In an attempt to overcomethis weakness, most users employ a 128-bit key for WEP.Change the default administration password.