Technology Questions

Q:

What are the rules which should be followed while naming a variable in VB?

Answer

Some of the rules which should be followed while naming a variable in VB are as follows: 


1) Characters should be less than 255.


2) Space between characters should be allowed.


3) A variable should begin with a number.


4) Period may not be permitted.

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Q:

What documents are used for use cases?

Answer

There are 2 documents: 


FRD (functional requirement document) 


SDD (system design document) which can also be called TRS (Technical requirements specifications) 

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Q:

What is traffic shaping?

Answer

One of the main causes of congestion is that traffic is often busy. If hosts could be made to transmit at a uniform rate, congestion would be less common. Another open loop method to help manage congestion is forcing the packet to be transmitted at a more predictable rate. This is called traffic shaping.

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Q:

Which key word is to be used to tell the JVM to skip the variable while performing the serialization process of the object containing it?

A) Transcient B) Volatile
C) Static D) Final
 
Answer & Explanation Answer: A) Transcient

Explanation:

If you mark an instance variable as transient, you're telling the JVM to skip (ignore) this variable when you attempt to serialize the object containing it.

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Filed Under: Java

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Q:

What are the three cost factors involves in cloud data center?

Answer

Cloud data center doesn’t require experts to operate it, but it requires skilled people to see the maintenance, maintain the workloads and to keep the track of the traffic. The labor cost is 6% of the total cost to operate the cloud data center. Power distribution and cooling of the datacenter cost 20% of the total cost. Computing cost is at the end and is the highest as it is where lots of resources and installation has to be done. It costs the maximum left percentage.

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Subject: Cloud Computing

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Q:

In the JCL, how do you define the files referred to in a subroutine ?

Answer

Supply the DD cards just as you would for files referred to in the main program.

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Q:

How to upload files in Amazon S3?

Answer

Amazon S3 provides uploading of large files and retrieve small offsets for end-to-end transfer data rates. The large file gets stored into small files that are smaller in size. Amazon S3 stores multiple of files together in a bundle or in a compressed form, For example in .gzip or .gz format and then convert them into Amazon S3 objects. The files get uploaded on the Amazon server by the use of FTP or another protocol and then retrieved through the HTTP GET request. The request includes the defined parameters like URL, offset (byte-range) and size (length).

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Subject: Cloud Computing

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Q:

How to open a file?

Answer

<?php
$file = fopen("file.txt","r");
?>

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Subject: PHP

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