Which of the following statements are correct? (select one or more) A. When a process uses fork() to spawn a child process, the child inherits the open file descriptors of the parent process
B. When a child uses exec() to run a different program, the file descriptors inherited from the parent are always automatically closed
C. When a process uses fork( to spawn a child process, the child does not inherit the open file descriptors of the parent process
D. When a child uses exec() to run a different program, the file descriptors inherited from the parent remain open by default

What are the different parts of computer

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?

Jean has kept the content of her website limited to what is important; she has also ensured that the text follows a particular style and color all throughout her website. which website features has jean kept in mind? jean has limited the content of her website to what is important; this ensures (clarity, simplicity, harmony and unity) of the content. she has also formatted the text in a particular style and color throughout her website, ensuring (balance, simplicity, consistency)