Clarke - Comptia Security+ Certification Study Guide, Third Edition (Exam Sy0-501)

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To my beautiful wife, Tanya, whose strength and support encourages me each and every day.

Glen E. Clarke, CCNA, MCITP, MCSE, MCSD, MCDBA, MCT, CEH, CHFI, SCNP, CISSO, Security+, Network+, A+, is owner of DC Advanced Technology Training (DCATT), an IT services company in Halifax, Nova Scotia, focusing on providing IT certification training and consulting services on technologies in the fields of networking, security, and programming. Glen spends most of his time delivering certified courses on Windows Server, SQL Server, Exchange Server, SharePoint, Visual Basic .NET, and ASP.NET. Glen also teaches a number of security-related courses covering topics such as ethical hacking and countermeasures, computer forensics and investigation, information systems security officers, vulnerability testing, firewall design, and packet analysis.

Glen is an experienced author and technical editor whose published work was nominated for a Referenceware Excellence Award in 2003 and 2004. Glen has contributed to numerous certification preparation guides, including titles on CompTIA A+, Network+, and Security+ certifications, Windows Server certification, and Cisco CCENT and CCNA certifications.

When hes not working, Glen loves to spend quality time with his wife, Tanya, and their four children, Sara, Brendon, Ashlyn, and Rebecca. You can visit Glen online at .

Edward Tetzgraduated in 1990 from Saint Lawrence College in Cornwall, Ontario, with a degree in business administration.