71.

72.

73.

74.

75.

There are three processes in a system. Each requires access to four units of a non-sharable
1/0 device for their computation. What is the minimum number of instances of the I/O device
required so that the processes will never face a deadlock?

(A) 4 (B) 10
(0) 12 (D) None of these

Consider the following two statements regarding Magnetic Disks with concentric circular
tracks :

51 : The highest share of Disk Service Time is contributed by rotational latency.
$2: Alltracks have the same storage capacity.
Which of the following is correct?
(^) Both $1 and 82 are false (B)_ S1is false and S2 is true
(0 S1lis true and 82 is false (D) BothS1 and 82 are true

class Parent {
final public void fun1 () {

1
ர்‌

public void fun2 () {
\

ர்‌

1
ர்‌

class Child extends Parent {
//
1
Which of the functions in the Parent class can be overridden by the Child class?
(^) funl() only
൯ both fun! () and fun2 () can be overridden
(0 fun2 () only

(D) no method can be overridden

Which of the following statements is true in case of multiple catch blocks in JAVA?

(A) _ Hither of the superclass or subclass can be caught first
(B) The superclass exception must be caught first
(C) The superclass exception cannot be caught first

(D) None of these

Which of the following contains only unimplemented methods?
(^) An Child Class ൯) An Interface
(C) An Abstract class (D) None of these

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