Chapter 4 Data Link Layer
Th e NDAS s b oa rd of d ir ector s h a s d ecid ed th a t NDAS will cen tr a lize com m u n ica tion a lon g two
m a jor d a ta lin k s (Atla n ta to Ta m p a a n d New Or lea n s to Ta m p a ), a s s h own in Ca s e Figu r e 4
Exercises for Chapter 4
1. What does the data link layer do?
2. What is media access control and why is it important?
3. Under what conditions is media access control unimportant?
4. Which is better, controlled access or contention? Explain?
5. Is there a
Introduction to the Criminal Justice Process
Dr. Dennis McCarty
Study Guide Exam #2
This Guide has ten short-answer questions for chapter 3 and another ten questions for chapter 4
in the Lab et al. textbook. Some of these questions will be included in the