TY  - BOOK
AU  - Deal, Richard A.
TI  - CCNA Cisco certified network associate security study guide (Exam 640-553)
SN  - 9780070682641
U1  - 005.8076 22
PY  - 2009///
CY  - New Delhi
PB  - Tata McGraw-Hill Education
KW  - Computer networks
KW  - Security measures
KW  - Examinations
KW  - Study guides
KW  - Problems, exercises, etc
KW  - Telecommunications engineers
KW  - Certification
ER  -