Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Modern networks are not implemented as a single piece of software; that would render the task of dealing with multiple technologies and manufacturers virtually impossible. The solution for this problem is to structure computer networks as stacks of different protocols. A protocol can be seen as a "language" in which two entities (computers, routers, etc) communicate with each other. Typically, one protocol is created to solve a predetermined set of networking tasks, such as being able to send ?xed-length messages, or guaranteeing message order, etc. The capability of a protocol to solve these tasks makes it a "black box" that can be used by protocols on the level immediately above; similarly, the protocol itself can make use of the capabilities provided by the protocol on the level immediately below. Thus, all modern networks are implemented as a stack of abstractions, all of which are implemented as composable protocols; we say that the layer N provides services to layer N+1 and uses the services from layer N-1.
As an example, consider the stack presented in Figure in this example we show how the HTTP protocol (or, similarly, SMTP and ssh) can be implemented using the services provided by the TCP protocol. Also, the TCP protocol is implemented using the services of the IP layer, which itself uses the services provided by the Ethernet layer. Notice that one advantage of this type of architecture is that if we were to build a new functionality (say, wireless connections, instead of Ethernet), it would suf?ce for us to implement this new layer and to guarantee that it provides, to the IP level, the same services that were once provided by the Ethernet level. Nowhere would we need to care about the details of TCP, HTTP, or, for that matter, any of the top-level protocols.
Question 1 Explain the structure of operating system in detail Question 2 Explain the following scheduling algorithm 1) First come Firs
1. How is reliability enhanced with the microkernel approach to system design? 2. In a virtual machine design where guest operating systems are independent virtual machines sup
Garbage collectors trade space for time. If we collect all the time (which requires a lot of processing time), the GC allocator will use the least memory possible. On the other han
. cash flou.
What are the various process scheduling concepts? a) Scheduling queues with diagram b) Queuing diagram c) Schedulers d) Context switch with diagram
Effects of multiprogramming on resource utilization With the utilize of multiprogramming, batch processing is able to be quite efficient .Just as multiprogramming permits the
Q. Segmentation is alike to paging but uses variable-sized "pages". Describe two segment-replacement algorithms based on FIFO and LRU page replacement schemes. Remember that since
Medium term scheduling This is component of the swapping function. Usually the swapping in decision is based on the need to manage the degree of multiprogramming. At a system t
What are the different accessing methods of a file? The different types of accessing a file are: Sequential access: Information in the file is accessed sequentially
What are the phases of background processing? Phases are:- Job Scheduling. Job Processing. Job Overview.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd