CS 6250 EXAM ACTUAL EXAM 2026 |
COMPUTER NETWORKS EXAM | ALL
QUESTIONS AND CORRECT ANSWERS |
VERIFIED ANSWERS | UPDATED VERSION
Save
Terms in this set (140)
,What are advantages and Each protocol layer offers different services.
disadvantages of a layered
architecture?
Layered Architecture Each protocol layer offers different services.
Layered Architecture Advantages - Scalability,
- Flexibility
- Ease of adding / removing components
making it easier for cost-effective
implementations.
,Layered Architecture - Some layers functionality depends on the
Disadvantages information from the other layer and violates
the goal of layer separation;
- One layer may duplicate lower layer
functionalities
- Overhead both in computation
- Overhead in message headers caused by
abstraction barriers between layers.
OSI and Five-Layered Internet Many of the layers are the same
model Similarities
, OSI and Five-Layered Internet - Three of the layers are combined in the 5-
model Differences layered model.
- Specifically the five-layer model combines
the
- Application
- Presentation
- Session layers
from the OSI model into a single Application
layer.
COMPUTER NETWORKS EXAM | ALL
QUESTIONS AND CORRECT ANSWERS |
VERIFIED ANSWERS | UPDATED VERSION
Save
Terms in this set (140)
,What are advantages and Each protocol layer offers different services.
disadvantages of a layered
architecture?
Layered Architecture Each protocol layer offers different services.
Layered Architecture Advantages - Scalability,
- Flexibility
- Ease of adding / removing components
making it easier for cost-effective
implementations.
,Layered Architecture - Some layers functionality depends on the
Disadvantages information from the other layer and violates
the goal of layer separation;
- One layer may duplicate lower layer
functionalities
- Overhead both in computation
- Overhead in message headers caused by
abstraction barriers between layers.
OSI and Five-Layered Internet Many of the layers are the same
model Similarities
, OSI and Five-Layered Internet - Three of the layers are combined in the 5-
model Differences layered model.
- Specifically the five-layer model combines
the
- Application
- Presentation
- Session layers
from the OSI model into a single Application
layer.
