Answer:
(a) yes, this protocol allows only serializable schedules for transactions as due to this the system maintains it's consistency. As in this protocol a unique transaction id is being assigned and with the help of that transaction id the system would be able to identify the process which has taken place in what particular order. For example, in case of bank transfers
balance = 1000 transaction id 100
write ADD 200 transaction id 101
write SUB 1100 transaction id 102
write ADD 900 transaction id 103
in here with the help of transaction id we can check which operation has happened in which order, if not then some operation will not happen like 102 immediately after 100 and skipping 101
(b) the modified version of this protocol would be to also consider the time of transaction and take this factor in the consideration
Answer it gives u points I think
Explanation:
Answer:
the user cannot use a computer system without hardware and software
Answer:
udemy
Explanation:
Hello guys, you might know that C++ is one of the most popular and powerful object-oriented programming languages and if you want to do low-level stuff then it’s the best language to start with.
You will find applications written in C++ on a wide range of fields like embedded programming, server-side application, gaming, and even high-frequency trading applications. Most of the complex software like Operating Systems, Database Management Systems, and Powerful trading systems are written in C++.
While many of us have learned to program by using C and C++, let me honest with you learning C++ is challenging. There are many areas that are tough to grasp like points but you will learn them slowly and that’s where these free C++ courses will help you.
There is no doubt that learning C++ will open several opportunities for you. There is a huge demand for good C++ developers, especially in the area of high-frequency trading where every microsecond matter and power of C++ is absolutely needed.
C++ is the language which provides the best of both world, it allows you to use OOP to manage the complexity of software but at the same time, it also allows you to get close to your machine and access all of your computer’s hardware, which is not easily possible for other object-oriented languages like Java or Python.
That’s the reason C++ is heavily used for writing native device drivers, high-end desktop games and complex artificial intelligence programs where you need high performance.
In this article, I am going to share with you some of the best and free courses to learn C++ online at your own time and place and free of cost. You can use these courses if you are starting with programming or you have some experience in coding but not familiar with C++.