COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES AND PROTOCOLS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It is self-contained (1)____it allows different developers to concentrate on one aspect of the network (1)
|
|
|
A layer can be taken out and edited without affecting other layers (1)____it promotes interoperability between vendors and systems (1)
|
|
|
They are intertwined(1)____.it requires developers to understand all layers. (1)
|
|
|
None of the above
|
Detailed explanation-1: -Each component handles a different part of the communication. This can be referred to as the Transmission Control Protocol/Internet Protocol-TCP/IP-model. Layering enables standards to be put in place and simply adapted as new hardware and software is developed.
Detailed explanation-2: -There are four layers of the TCP/IP model: network access, internet, transport, and application. Used together, these layers are a suite of protocols. The TCP/IP model passes data through these layers in a particular order when a user sends information, and then again in reverse order when the data is received.
Detailed explanation-3: -Layering allows standards to be developed, but also to be adapted to new hardware and software over time. For example, different software packages (applications) may use the same transport, network and link layers but have their own application layer.
Detailed explanation-4: -a. TCP/IP provides reliable communication across the internet. b. Information on the internet is carried in packets. c. TCP/IP is a robust and scalable network. d. All of the above. 23-Sept-2015