00650nam a2200217Ia 450000500170000000800410001724500490005810000160010726000530012330000190017630000110019550000370020602000220024365000550026565000480032005000170036854600120038533600090039733700150040633800110042120260803094035.0251212s2010    xx            000 0 und d1 aCCNA security : bstudy guide /cTim Boyles.  aBoyles, Tim  aIndianapolis, India :bWiley Publlishing,c2010.  axxxii, 516 p.:  c24 cm.  aIncludes appendices and glossary  a978-0-470-52767-2  aComputer networksxSecurity measuresxExaminations  aTelecommunications engineersxCertification  a005.8076 B69  aEnglish  aText  aUnmediated  aVolume