Why do engineers use a "model" to organize their approach to solving a large and complex
problem? - ANS-Because it allows them to build something small and test it in a wind tunnel
Because talking about a model delays the actual start of the hard work
✓ Because they can break a problem down into a set of smaller problems that can be solved
independently
Because it helps in developing marketing materials
Which is the top layer of the network model used by TCP/IP networks? - ANS-✓ Application
Transport
Internetwork
Link
Which of the layers concerns itself with getting a packet of data across a single physical
connection? - ANS-Application
Transport
Internetwork
✓ Link
What does CSMA/CD stand for? - ANS-✓ Carrier Sense Multiple Access with Collision
Detection
Collision Sense Media Access with Continuous Direction
Correlated Space Media Allocation with Constant Division
Constant State Multiple Address Channel Divison
What is the goal of the Internetwork layer? - ANS-Insure that no data is lost while enroute
✓ Get a packet of data moved across multiple networks from its source to its destination