TCP(IP) MODELS EXAM QUESTIONS
& ELABORATED COMPLETE
SOLUTIONS 100%
1. Assisting in protocol design because protocols that operate at a specific layer have
defined information that they act upon and a defined interface to the layers above and
below.
2. Fostering competition because products from different vendors can work together.
3. Preventing technology or capability changes in one layer from affecting other layers
above and below.
4. Providing a common language to describe networking functions and capabilities. -
Correct Answer ✔✔ Benefits of using a layered model to describe network protocols
and operations
TCP/IP model and the Open Systems Interconnection (OSI) model are the primary
models used when discussing network functionality. They each represent a basic type
of layered networking models (Protocol for TCP/IP and Reference for OSI). - Correct
Answer ✔✔ What are the two primary models used when discussing network
functionality
Protocol model - This type of model closely matches the structure of a particular
protocol suite. The TCP/IP model is a protocol model because it describes the functions
that occur at each layer of protocols within the TCP/IP suite. TCP/IP is also used as a
reference model. - Correct Answer ✔✔ What is a Protocol Model?
Reference model - This type of model provides consistency within all types of network
protocols and services by describing what has to be done at a particular layer, but not
prescribing how it should be accomplished. The OSI model is a widely known
internetwork reference model, but is also a protocol model for the OSI protocol suite. -
Correct Answer ✔✔ What is a Reference Model?
1. Provides an extensive list of functions and services that can occur at each layer
2. Describes the interaction of each layer with the layers directly above and below.
Whereas the TCP/IP model layers are referred to only by name, the seven OSI model
layers are more often referred to by number rather than by name. For instance, the
physical layer is referred to as Layer 1 of the OSI model. - Correct Answer ✔✔ What is
the basic functionality of OSI model
1. Physical
2. Data Link