Access Control Lists (ACL)
In this video you learn what are access control lists (ACL), what are different types of ACL, how to create them and where to apply them.
The slides in PDF format can be viewed here.
CCENT/CCNA ICND1 Official Exam Certification Guide, 2nd Edition
CCNA ICND2 Official Exam Certification Guide (CCNA Exams 640-816 and 640-802) (2nd Edition)CCNA Guide to Cisco Networking Fundamentals (Networking (Course Technology))