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Showing posts with label Technology. Show all posts
Showing posts with label Technology. Show all posts
Thursday, July 26, 2012
Saturday, June 16, 2012
What is difference between id and name of bean?
id of bean is a unique in container for each bean . id is basically used to access the bean anywhere. but it not accept the url matching like in spring framework. name is partially work like id but it can accept url matching.
example-
<bean name="/*.html" class="com.test.handler">
In web application when url contain this pattern it call that class. The id is not preferred for that feature. It caught a exception at the run time.
example-
<bean name="/*.html" class="com.test.handler">
In web application when url contain this pattern it call that class. The id is not preferred for that feature. It caught a exception at the run time.
Friday, June 15, 2012
What is GIS ?
"Geographic information" mainly deals with the information about places on the earth's surface,knowledge about where something is or what is at a given location.
Role of GI in GIS-
--> Geographic information is GIS resolution which varies depending on the availability of the data and requirement of the specific project.
--> Geographic information are often relatively static like natural features and many features of human origin don't change rapidly and can be map on paper.
Role of GI in GIS-
--> Geographic information is GIS resolution which varies depending on the availability of the data and requirement of the specific project.
--> Geographic information are often relatively static like natural features and many features of human origin don't change rapidly and can be map on paper.
Thursday, June 14, 2012
What is Cloud Computing and advantage of cloud
Cloud Computing is an emerging concept that contain technological capabilities like software, hardware and data
services. commonly maintained off premises that are delivered on demand as a services. The services are provided the software ,platform and infrastructure .The cloud computing uses a shared architecture ans supports the ability to dynamically scale up and quickly scale down,offering cloud consumers high reliability,quick response times and the flexibility to handle traffic fluctuation and demand.
The biggest advantages of cloud computing Creating virtual technology which allows cloud service provider t convert one server into many virtual machines , thereby eliminating client-server computing with single purpose systems. this technology is also called virtualization .
services. commonly maintained off premises that are delivered on demand as a services. The services are provided the software ,platform and infrastructure .The cloud computing uses a shared architecture ans supports the ability to dynamically scale up and quickly scale down,offering cloud consumers high reliability,quick response times and the flexibility to handle traffic fluctuation and demand.
The biggest advantages of cloud computing Creating virtual technology which allows cloud service provider t convert one server into many virtual machines , thereby eliminating client-server computing with single purpose systems. this technology is also called virtualization .
Thursday, April 26, 2012
Spring Framework- Initialize values of bean (property tag)
First to develop applications with the Spring framework need to setup the environment . Development requirements are-
1. Eclipse.
2.JDK 1.6.0
3.Spring framework 3.0(Click here to download).
Add the spring jar files into CLASSPATH or Eclipse Library.
Now discuss about example-
Create a class Point.java
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<bean class="com.spring.test.Point" id="point">
<property name="x" value="0"></property>
<property name="y" value="10"></property>
</bean>
</beans>
1. Eclipse.
2.JDK 1.6.0
3.Spring framework 3.0(Click here to download).
Add the spring jar files into CLASSPATH or Eclipse Library.
Now discuss about example-
Create a class Point.java
package com.spring.test;
public class Point {
private int x;
private int y;
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
}
Create a XML file spring.xmlpublic class Point {
private int x;
private int y;
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<bean class="com.spring.test.Point" id="point">
<property name="x" value="0"></property>
<property name="y" value="10"></property>
</bean>
</beans>
Sunday, January 15, 2012
Command to enable OSPF Routing protocol on Router interface mode
Here is a Command to enable OSPF routing protocol on a router interface mode for that particular interface
as-
Router(Config-if)#ip ospf <process-id> area <area-id> [secondaries none].
Ex.
Router(Config-if)#ip ospf 100 area 0 secondaries none
-->Here secondaries none is optional which prevent other secondary ip address on the interface being advertise.
as-
Router(Config-if)#ip ospf <process-id> area <area-id> [secondaries none].
Ex.
Router(Config-if)#ip ospf 100 area 0 secondaries none
-->Here secondaries none is optional which prevent other secondary ip address on the interface being advertise.
Friday, January 13, 2012
Why We used areas in OSPF routing protocol?
To reduce the SPF calculations, link-state routing protocols can partition networks into sub-domains called areas.
In small networks, the web of router links is not complex, and paths to individual destinations are easily deduced. However, in large networks, the resulting web is highly complex, and the number of potential paths to each destination is large. Therefore, the SPF calculations comparing all these possible routes can be very complex and can take significant time. The CPU and memory resources on an OSPF router can also be overburdened in a heavily populated OSPF network.
Thursday, December 8, 2011
What is diffrence between DHCP and BOOTP ?
DHCP stand for Dynamic host configuration protocol.
BOOTP stand for BootStrap protocol.
Major differences between them as follows--
BOOTP stand for BootStrap protocol.
Major differences between them as follows--
1. BOOTP was designed for manual pre-configuration of the host information in a server database, while DHCP allows for dynamic allocation of network addresses and configurations to newly attached hosts. When a BOOTP client requests an IP address, the BOOTP server searches a predefined table for an entry that matches the MAC address for the client. If an entry exists, the corresponding IP address for that entry is returned to the client. This means that the binding between the MAC address and the IP address must have already been configured in the BOOTP server.
2. DHCP allows for recovery and reallocation of network addresses through a leasing mechanism. Specifically, DHCP defines mechanisms through which clients can be assigned an IP address for a finite lease period. This lease period allows for reassignment of the IP
Sunday, October 2, 2011
First Worm Infection
The Robert Morris created the first Internet worm with 99 lines of code. When the Morris Worm was released, 10% of Internet systems were brought to a halt. Robert Morris was charged and received three years probation, 400 hours of community service, and a fine of US$10,000.
Friday, October 22, 2010
definition of data base management system.
Data base management system is combination of some words--
Data+database+management+system
Data is a row,fact and figure which can manage in a useful information.
Database is a collection of related data without harmful and unnesessary redundacy.
Database management is manage the data in a manageble form to modify and retrive the data.
DataBaseManagementSystem is a collection of data which are interrelated to each other anda set of program to retrive those data.
Data+database+management+system
Data is a row,fact and figure which can manage in a useful information.
Database is a collection of related data without harmful and unnesessary redundacy.
Database management is manage the data in a manageble form to modify and retrive the data.
DataBaseManagementSystem is a collection of data which are interrelated to each other anda set of program to retrive those data.
Thursday, October 21, 2010
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