Project Manager Questions


Q:

What is String Args in Java?

Answer

String Args (String []) is an array of parameters of type String.


In Java, 'args' contains the supplied command-line arguments as an array of String objects. In other words, if you run your program as 'java MyProgram Hello World' then 'args' will contain ["Hello", "World"]. When a java class is executed from the console, the main method is what is called.

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Q:

Statement: The air and rail services have been severely disrupted due to thick fog in the northern part of the country.
Courses of action:
a. The rail and air services should be temporarily suspended in the region.
b. People should be advised to make their travel plan keeping in mind the probable disruption resulting in delay or cancellation of services.
c. The government should immediately install modern machines which will enable itto guide the rail and air services even if the thick fog develops.

A) Only a follows B) a and b follows
C) Only b follows D) a, b & c follows
 
Answer & Explanation Answer: D) a, b & c follows

Explanation:

Keeping in mind the safety and convenience of passengers, both 'a' and 'b' follow. 'c' clearly suggests a remedy to the problem and hence it also follows.

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Q:

Define Executive Plan in Database SQL ?

Answer

Executive plan can be defined as:


* SQL Server caches collected procedure or the plan of query execution and used thereafter by subsequent calls.


* An important feature in relation to performance enhancement.


* Data execution plan can be viewed textually or graphically.

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Q:

What is inheritance?

Answer

Inheritance is the ability to create new classes based on existing classes. It is useful to reuse existing code.

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Q:

Why do you need common fields in a Database?

Answer

A database that contains multiple tables related through common fields.


A common field is a field of data that is shared among all forms in a database. Without them, it would be difficult and/or time-consuming to create other forms.

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Q:

What role does Dalvik play in Android development ?

Answer

Dalvik serves as a virtual machine, and it is where every Android application runs. Through Dalvik, a device is able to execute multiple virtual machines efficiently through better memory management.

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Q:

Data structure suitable for an application discussed in?

A) procedural design B) architectural design
C) data design D) interface design
 
Answer & Explanation Answer: C) data design

Explanation:
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Q:

In a spreadsheet program how is data organized?

A) Rows and columns B) Layers and planes
C) Lines and spaces D) All of the above
 
Answer & Explanation Answer: A) Rows and columns

Explanation:
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