Interview Questions

Q:

How to create Directory on the HD?

Answer

To create directory on the HD we use mkDir() method:


boolean mkDir();


This method returns true if the directory is created on HD


This method returns false if the directory is already existing on HD

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Subject: Java

0 2037
Q:

What is difference between HTML and HTML5?

Answer

The differences between HTML and HTML5 are:


- Document of HTML is very large as compare to the HTML5.


- Audio and Video tags are not present in HTML whereas HTML5 contains audio and video tags.


- Vector technology is not integral part of HTML whereas HTML5 Vector technology is the integral part of it.


- HTML supported by all old browsers whereas HTML5 is supported by new browser.


- In HTML web sockets are not available whereas in HTML5 Full duplex communication channel is present.

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Subject: Web Technology

0 2037
Q:

What are session method and call transaction method and explain about them?

Answer

Call Transaction Method: In Call Transaction method we call the transaction in BDC program itself. If we want this program is executed by some one else then we need to expose the code to him. Call Transaction Method Works in Foreground. No Display Mode is equal to Background Processing in call transaction method. Call Transaction Method can handle only one Application at a time. In Call Transaction Method no Log File by Default. We have to design Log File by using BDCMSGCOLL. Call Transaction Method Updates the Database Asynchronously. (Note: Asynchronous updation is Faster than Synchronous)
 
Batch Session Method: On the other hand in batch session method we create a session which can be executed at any time by any authorized person without exposing the code of the program. Session Method works in Background and as well as in Foreground. Session Method can handle Multiple Applications at a time. Session Method holds Log File by Default. Session Method Updates the Database Synchronously.

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Subject: ABAP

0 2037
Q:

APK full form in Android?

Answer

APK stands for Android Application Package.


 


Android Package (APK) is the package file format used by the Android operating system for distribution and installation of mobile apps and middleware.

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2 2036
Q:

What is the use of API’s in cloud services?

Answer

API stands for Application programming interface is very useful in cloud platforms as it allows easy implementation of it on the system. It removes the need to write full fledged programs. It provides the instructions to make the communication between one or more applications. It also allows easy to create application with ease and link the cloud services with other systems.

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Subject: Cloud Computing

0 2036
Q:

When someone clicks your ad, the actual amount you’re charged will be

A) The minimum needed to hold your ad position, under the maximum cost-per-click limit B) The minimum needed to hold your ad position or 50% of your maximum cost-per-click bid, whichever is greater
C) The minimum needed to hold your ad position but never more than 120% of your maximum cost-per-click bid, whichever is greater D) The minimum needed to hold your ad position but never less than 50% of your maximum cost-per-click bid, whichever is greater
 
Answer & Explanation Answer: A) The minimum needed to hold your ad position, under the maximum cost-per-click limit

Explanation:

When_someone_clicks_your_ad,_the_actual_amount_you’re_charged_will_be1551856891.png image

When someone clicks your ad, the actual amount you’re charged will be " The minimum needed to hold your ad position, under the maximum cost-per-click limit ".

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1 2035
Q:

What is a ResultSet ?

Answer

A table of data representing a database result set, which is usually generated by executing a statement that queries the database.


 


ResultSet object maintains a cursor pointing to its current row of data. Initially the cursor is positioned before the first row. The next method moves the cursor to the next row, and because it returns false when there are no more rows in the ResultSet object, it can be used in a while loop to iterate through the result set.

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Subject: Java

0 2034
Q:

What is JDBC ?

Answer

JDBC technology is an API (included in both J2SE and J2EE releases) that provides cross-DBMS connectivity to a wide range of SQL databases and access to other tabular data sources, such as spreadsheets or flat files. With a JDBC technology-enabled driver, you can connect all corporate data even in a heterogeneous environment.

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Subject: Java

0 2034