Step 1: Definition of Deadlock.
Deadlock is a situation in operating systems where two or more processes are blocked, waiting for resources held by each other, resulting in a cycle of dependencies. The processes cannot continue because they are each waiting for the other to release resources.
Step 2: Explanation of other options.
- (1) Pooling: Refers to the practice of gathering multiple resources for shared access, not a situation involving blocking.
- (3) Thrashing: Refers to excessive paging and swapping between memory and disk, leading to performance degradation. It is not related to blocked processes.
- (4) Paging: Refers to the technique of managing memory by dividing it into fixed-size blocks, not related to processes waiting for resources.
Step 3: Conclusion.
Therefore, the correct answer is **Deadlock** (2).
Complete the following statement by choosing the correct option.
For a deadlock to occur, the four conditions namely Mutual Exclusion, Hold and Wait, No preemption, Circular wait __________.
Consider a computer system with multiple shared resource types, with one instance per resource type. Each instance can be owned by only one process at a time. Owning and freeing of resources are done by holding a global lock \(L\). The following scheme is used to own a resource instance:
function OwnResource(Resource R)
Acquire lock L // a global lock
if R is available then
Acquire R
Release lock L
else
if R is owned by another process P then
Terminate P, after releasing all resources owned by P
Acquire R
Restart P
Release lock L
end if
end if
end function
Which of the following choice(s) about the above scheme is/are correct?
Arrange the following needs in the order in which they appear in the Maslow's Hierarchy of Needs, starting from bottom to top.
(A) Social
(B) Physiological
(C) Esteem
(D) Safety
Which figure comes next in the given series below?

