Networks are becoming more relevant in the world we live in today, and at Juniper Networks we believe the network can create a connected planet that unleashes a great wealth of possibility, innovation, and discovery that cannot be measured.
But the demands on the network are changing rapidly and require a new approach.
Cloud computing and the mobile Internet are two macro trends driving an exponential increase in traffic volume, new services, and new subscribers around the world. These trends will define the next decade, with broad implications for the technology industry, and for network innovation in particular. In the face of this increased demand, legacy approaches to networking are proving unsustainable. They are too costly, too complex, and simply cannot scale.
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1)The java code snippet '2-4/2' evaluates to:
a) -3
b) 2
c)-1
d) 0
2)In java arguments are passed into method by value. varies for basic types versus object reference:
a) i don't know
b) True
C) false
3)The 'Expression' in the java code snippet 'switch(expression)' must evaluate to a boolean.
a)true
b)false
c)depends on compiler/interpreter
d)don't know
4)java compiler produces a binary which can run on a target platform that is similiar to the one on which progarm has been compiled.
a) only if the platform is sun solaris.
b) only if the java compiler is from sun JDk.
c) True
d)false
e)not sure.
5)which of the follwing is true for a java class "volatile variable".
a)Updated immediately by all threads accessing that class simultaneously.
b)Not shared by all instances of that class.
c)that keeps changing its value from instance to insatnce.
d)cannot be accessed by insatnces of sub classes of that class.
e)don't know
6)what is the output of this java snippet?
int i+=8;
system.out.println(i);
a) 8
b)compilation error about i not being initialised
c) 0
d)none of the above
7)Consider the following class hierarchy in java
object
|
Person
|
Employee
For this hierarchy,is following java statement correct?
Employee emp = new person();
a)true
b)false
8)A java interface cannot have method impletentations
a)False
b)True
9)Methods of an object determine its behaviour.
a)True
b)False
10)You must access java array elements sequentially i.e you cannot access an element in the array directly.
a)only if the array size is an even integer.
b)only if the array size is an odd integer.
c)only if the array is of java.lang.object type
d)false
e)true
11)Consider the following java code snipper:
int i=10;
final int j=10;
j=i+10;
sustem.out.println(i+""+j);
What will be the output of above:
a)10 20
b)will not compile
c)10 10
12)you are most likely to use the 'synchronized' keyword in which of the following situations:
a)JVM running on multiple CPU systems
b) Real-time applications
c) mutithreaded applications
d)All of the above
13)Can we pass an interface as parameter to a method in java?
a) Yes
b) No
c) Compilation error
d) i don't know
14)A java class can inherit from multiple classes.
a)True
b)False
