Technology Questions

Q:

Explain the difference between value types and reference types

Answer

Value type :


 



  • Stores the data

  • The value of value types is stored on the managed stack

  • They are lighter objects 

  • One variable can have only one value


Reference Type :



  • Stores the reference to the data

  • A reference type is allocated on the heap

  • They are heavier objects

  • Several variables can reference the same data


 

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Subject: .NET

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Q:

How does an application run in isolation from other applications?

Answer

Each application gets its own Linux user ID and virtual machine which means that the application code runs in isolation from other applications.

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Q:

How to get the contents of an input box using Javascript?

Answer

Use the "value" property.
var myValue = window.document.getElementById("MyTextBox").value;

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Subject: Web Technology

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Q:

What are the uses of synonyms?

Answer

- Mask the real name and owner of an object.
- Provide public access to an object
- Provide location transparency for tables, views or program units of a remote database.
- Simplify the SQL statements for database users.

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Subject: Oracle

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Q:

How does Microsoft classify security threats to its software?

Answer

Microsoft classifies such threats into 4 indicators, which are low, moderate, important, and critical. Such indicators are available as reference under the Microsoft bulletin.

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Q:

What are the different layers of cloud computing?

Answer

Cloud computing consists of 3 layers in the hierarchy and these are as follows:


1. Infrastructure as a Service (IaaS) provides cloud infrastructure in terms of hardware like memory, processor speed etc. 


2. Platform as a Service (PaaS) provides cloud application platform for the developers. 


3. Software as a Service (SaaS) provides cloud applications which are used by the user directly without installing anything on the system. The application remains on the cloud and it can be saved and edited in there only.

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Subject: Cloud Computing

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Q:

What is DHCP scope?

Answer

A scope is a range, or pool, of IP addresses that can be leased to DHCP clients on a given subnet.

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Q:

Which input type defines a slider control?

A) type B) source
C) aside D) body
 
Answer & Explanation Answer: A) type

Explanation:

The input type attribute TYPE defines the slider control.

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Filed Under: Application Development
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