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:
In reality, a diluted type of acetone that dissolves plastics and coating is Nail polish removers.
Explanation:
The chemical composition of the material has permanently changed, nothing else than if you had shot it. No repair but replacement is available.
Acetone does not get along with plastics.
This classic timelapse video shows just how cheap plastic acetone is.
When it's out, I have my new AirPods Pro. I got a odd smell when I opened the box when I received it. The little one is solid and chemical. It's new, I guess, and after days it will be gone.
But after ten days of use it doesn't. And the smell remains strong. It won't go quickly, I believe.
Instead I noticed that the smell is often shaping the silicone tips.
About 8 hours a day I use this AirPods Pro. Is it possible for a long time to use this smelling tip?
Actually, I must say they are soft and work well for noise cancelation, I love this silicone tip. If the strange smell doesn't hurt. To me, that's good.
Answer:
Conceptual design is the first stage that involves defining a concept.
Explanation:
In the conceptual design phase it is important to understand the needs, doing research and find out how to meet them defining models and plans. In this stage, you have to define the steps you will need to take to develop the design and identify the challenges you may face in order to be prepare.
Did u shut it down and then reset it????? Did you unplug your internet adapter????
What are some of the challenges that could arise from setting up a file management system on a computer
