The answer is a) It improves upon the two-phased commit by requiring that locks be acquired at the start of a transaction.
Reason: The 3PC is an extension or you can say developed from 2PC that avoids blocking of an operation. It just ensures that first n sites have intended to commit a transaction that means it acquires commits or locks before the start of any transaction to avoid any blocking.
Option b) is wrong as it does not allow coordination, it just let all the other sites do their transaction if any other site is blocked, so no coordination is there between sites that they will wait till their coordinator is corrected.
Option c) is wrong as lock operations are shared between other connections as when their coordinator fails, the new coordinator agrees to the old coordinator that they had shared locks before and they can start their transaction.
Option d) is wrong as option a) is correct.
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Answer:
The taskbar is an element of an operating system located at the bottom of the screen. It allows you to locate and launch programs through Start and the Start menu, or view any program that's currently open.
Answer:
sorry please write in English than i help.you i don't understand your language
Answer:
Page Layout explains how the document pages are going to look like after printing. When we check the layout in Word, then we can see that the page layout covers the elements like margins, number of columns, option for editing the header and footers. Various types of layouts are like a magazine layout, static, adaptive, dynamic, and adaptive as well as responsive layout.
And these page layout techniques are being implemented for customizing the magazine appearance, books, newspapers, websites, and various other sorts of publications. And such page layout covers page's all elements. Some of the best page layout software are:
Microsoft Publishers
Scribus
Adobe InDesign
QuarkXpress
Xara
Download the free student version of Microsoft Office today, and explore Microsoft publisher to know more about it.
Explanation:
Please check the answer.
Answer:
B. The process will be terminated by the operating system.
Explanation:
When Round Robin is used for CPU scheduling, a time scheduler which is a component of the operating system is used in regulating the operation. A time limit is set for each of the processes to be run.
So, when a process fails to complete running before its time elapses, the time scheduler would log it off and return it to the queue. This queue is in a circular form and gives each of the processes a chance to run its course.
