Condition For Deadlock Occurrence?

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⟩ Condition for deadlock occurrence?

Deadlock can arise if four conditions hold simultaneously.

Mutual exclusion:

only one process at a time can use a resource.

Hold and wait:

a process holding at least one resource is waiting to acquire additional resources held by other processes.

No preemption:

a resource can be released only voluntarily by the process holding it, after that process has completed its task.

Circular wait:

there exists a set {P0, P1, ?, P0} of waiting processes such that P0 is waiting for a resource that is held by P1, P1 is waiting for a resource that is held by P

2, Pn1 is waiting for a resource that is held by

Pn, and P0 is waiting for a resource that is held by P0.

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What is the output of this program?

 #! /usr/bin/awk -f
 BEGIN {
  var1="google"
  var2="linux"
  print var1" provides "var2" MCQs "	 
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a) google provides linux MCQs
b) var1 provides var2 MCQs
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d) syntax error

What is the output of this program?

 #! /usr/bin/awk -f
 BEGIN {
  one=10;
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What is the output of this program?

 #! /usr/bin/awk -f
 BEGIN {
  a=10;
  b=10;
  print a==b ? "true""false"	 
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a) true
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c) syntax error
d) none of the mentioned

The comparison expression "x ~ y" will true if
a) x is not equal to y
b) the string x does not match the regular expression denoted by y
c) the string x matches the regular expression denoted by y
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What is the output of this program?

 #! /usr/bin/awk -f
 BEGIN {
  print "20"<"9" ? "true""false"	 
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c) syntax error
d) none of the mentioned

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a) double precision floating point
b) integer
c) exponential notation
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d) matching operator

Which command on the command line provides the same output as this executable awk script?

 #! /usr/bin/awk -f
 BEGIN {
  print "google"
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c) awk 'print {google}'
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Which one of the following is not true?
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b) arithmetic operators are used to evaluate expressions
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What is the output of the command awk 'BEGIN {printf "%cn",65}'
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