Deadlock is

Deadlock is a situation where a set of processes are blocked because each process is holding a resource and waiting for another resource acquired by some other process.

1. What is deadlock explain it?
2. What is deadlock example?
3. What causes deadlock?
4. What is political deadlock?
5. What is a deadlock on a door?
6. What is database deadlock?
7. What is a process in OS?
8. What is deadlock in mainframe?
9. Is deadlock good or bad?
10. Are deadlocks bad?
11. Why did Canada Confederate?
12. What is political party polarization?
13. Why is it called a deadbolt?
14. What type of lock is a deadlock?
15. Can a deadlock be picked?

What is deadlock explain it?

In an operating system, a deadlock occurs when a process or thread enters a waiting state because a requested system resource is held by another waiting process, which in turn is waiting for another resource held by another waiting process.

What is deadlock example?

A deadlock is a situation in which two computer programs sharing the same resource are effectively preventing each other from accessing the resource, resulting in both programs ceasing to function. ... This led to the problem of the deadlock. Here is the simplest example: Program 1 requests resource A and receives it.

What causes deadlock?

A deadlock occurs when 2 processes are competing for exclusive access to a resource but is unable to obtain exclusive access to it because the other process is preventing it. This results in a standoff where neither process can proceed. The only way out of a deadlock is for one of the processes to be terminated.

What is political deadlock?

In politics, gridlock or deadlock or political stalemate is a situation when there is difficulty passing laws that satisfy the needs of the people. A government is gridlocked when the ratio between bills passed and the agenda of the legislature decreases.

What is a deadlock on a door?

Deadlocks, also known as deadbolts, usually use a locking mechanism that is manually operated by the turning of a key or thumbturn. This means it requires a significant amount of force to pry the bolt back, and for this reason, they are very secure.

What is database deadlock?

In a database, a deadlock is a situation in which two or more transactions are waiting for one another to give up locks. For example, Transaction A might hold a lock on some rows in the Accounts table and needs to update some rows in the Orders table to finish.

What is a process in OS?

In computing, a process is the instance of a computer program that is being executed by one or many threads. ... Depending on the operating system (OS), a process may be made up of multiple threads of execution that execute instructions concurrently.

What is deadlock in mainframe?

A deadlock is created when two applications lock data that is needed by the other, resulting in a situation in which neither application can continue executing. At time T1, Application A locks the first row in Table 1. ... At the same time, Application B locks the second row in Table 2.

Is deadlock good or bad?

A deadlock condition in SQL Server can never be cleared up unless one of the transactions is killed. Because of this, the database engine scans for deadlocks every five seconds. If a deadlock is found, SQL Server will roll back one of the transactions, whichever is easiest to rollback.

Are deadlocks bad?

Deadlocks can kill an application's performance. Users will complain about the app being slow or broken. Developers will ask the DBA to fix the problem, DBAs will push the problem back on developers.

Why did Canada Confederate?

Confederation was inspired in part by fears that British North America would be dominated and even annexed by the United States. (See also: Manifest Destiny.) These fears grew following the American Civil War (1861–65). The violence and chaos of the Civil War shocked many in British North America.

What is political party polarization?

Political polarization (see American and British English spelling differences) is the extent to which opinions on an issue are opposed, and the process by which this opposition increases over time. ... Polarization is associated with the process of politicization.

Why is it called a deadbolt?

Deadbolts are considered to be secure locks that are difficult to open without a key, especially when compared to a spring-loaded lock, the kind you see in the center of a doorknob. While spring latches can be pushed back manually, deadbolts can't — which is why they're called deadbolts. They're dead, or unmovable.

What type of lock is a deadlock?

The five lever mortice deadlock is a type of door lock commonly fitted to wooden doors. It can be locked and unlocked with a key from both the inside and the outside. It works by inserting and turning the key to move the five levers into the correct position, allowing the bolt to be locked or unlocked.

Can a deadlock be picked?

You can pick any keyed deadbolt lock with two basic tools. The first is the pick itself, which is a long, rigid piece of metal or plastic that fits easily into the keyhole and won't bend easily when you push it against something. ... You can fashion both of these tools from household supplies.