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 Technology Questions

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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 1982
Q:

A database is used to

A) store data B) modify data
C) extract data D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A database is used to store, modify, extract and to search for the data within it.

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Filed Under: SQL
Job Role: Analyst , Database Administration , IT Trainer , Project Manager

2 1979
Q:

How to Estimate Testing effort ?

Answer

Time Estimation method for Testing Process:


 


Step 1 : count number of use cases (NUC) of system 


Step 2 : Set Avg. Time Test Cases(ATTC) as per test plan 


Step 3 : Estimate total number of test cases (NTC) 


Total number of test cases = Number of Use Cases X Avg. Test Cases per a use case 


Step 4 : Set Avg. Execution Time (AET) per a test case 


Step 5 : Calculate Total Execution Time (TET) 


TET = Total number of test cases * AET 


Step 6 : Calculate Test Case Creation Time (TCCT)


usually we will take 1.5 times of TET as TCCT


TCCT = 1.5 * TET


Step 7 : Time for Re-Test Case Execution (RTCE) this is for retesting


usually we take 0.5 times of TET


RTCE = 0.5 * TET


Step 8 : Set Report generation Time (RGT


usually we take 0.2 times of TET


RGT = 0.2 * TET


Step 9 : Set Test Environment Setup Time (TEST)


it also depends on test plan


Step 10 : Total Estimation time = TET + TCCT+ RTCE + RGT + TEST + some buffer.


 

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Subject: QA Testing

0 1978
Q:

Explain how to create users through SQL PLUS.

Answer

We need to first login to the data base as: SQLPLUS followed by user_name/password. Then we need to execute the following query:


CREATE USER user_name IDENTIFIED BY abcd; in this query a user_name suggest the user that is created which has a password abcd which is required for login in database.

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Subject: Oracle

0 1975
Q:

How to call argument constructor?

Answer

new ClassName( arg1, arg2, .... argN);


Ex:


Class sample {


   Sample(int a) {


   System.out.println("arg con a =" +a);


   }


}


class Demo {


    Public static void main( String[] args) {


     Sample s1= new Sample(23);


     Sample s2= new Sample(45);


    }


}

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Subject: Java

0 1974
Q:

What is recovery/error testing?

Answer

Recovery/error testing is testing how well a system recovers from crashes, hardware failures, or other catastrophic problems.

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Subject: QA Testing

0 1973
Q:

How to insert Javascript in HTML?

Answer

We can insert JavaScript in HTML using <Script tag>. JavaScript can be enclosed in <script type = text/javascript> and ending with </script>.


Example: 


<html> 


  <body> 


        <script type="text/javascript"> 


               ...JavaScript….


         </script> 


   </body> 


</html>

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Subject: Web Technology

0 1972
Q:

What is the DNS forwarder?

Answer

DNS servers often must communicate with DNS servers outside of the local network. A forwarder is an entry that is used when a DNS server receives DNS queries that it cannot resolve locally. It then forwards those requests to external DNS servers for resolution.

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Subject: Network Administration

0 1969