AMU MCA Computer Previous Year Questions (PYQs) – Page 2 of 14
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Showing 137 questions
Which of the following system call is used to create new process in UNIX operating system?
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Solution
New process is created using fork().
The minimum number of nodes in an AVL tree of height 6 is
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Solution
Minimum nodes follow Fibonacci relation:
$N(h)=N(h-1)+N(h-2)+1$
$N(6)=20$
What is the maximum number of edges a directed graph having n vertices can have including self-loops?
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Solution
With self-loops allowed, each vertex can connect to n vertices.
Total edges = n × n = n²
The Banker's theorem is associated with which of the following concept?
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Solution
Banker’s Algorithm is used for deadlock avoidance in operating systems.
What is degree of a vertex 'V' of an undirected graph?
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Solution
Degree of a vertex in an undirected graph is the number of edges incident on it.
Which one of the following statements is true regarding Array and Linked List?
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Solution
Array elements are stored contiguously. Linked list elements are not stored in adjacent memory.
Malicious software is known as
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Solution
Malicious software is commonly called malware.
To avoid the race condition, the number of processes that may be simultaneously inside their critical section is:
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Solution
For mutual exclusion, only one process can enter critical section at a time.
Which access method is used to obtain a record from a cassette tape?
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Solution
Cassette tape uses sequential access method.
The directory can be viewed as ………… that translate filenames into their directory entries
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Solution
A directory maps file names to metadata entries, just like a symbol table.
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