(i) Open NMS (Network Management System) is a free and open-source initiative grade network monitoring and management platform.
(ii) It is established and maintained by a community of users, developers and by the Open NMS Group.
(iii) It offering services, training, and support.
The goal is for Open NMS
(i) The goal is for Open NMS to be an actually distributed, scalable management application platform for all features of the FCAPS (Fault, Configuration, Accounting, Performance, Security) network management model.
(ii) Presently the emphasis is on Fault and Performance Management.
It was intended to cope tens of thousands of devices from a single server as well as achieve unlimited devices using a cluster of servers.
Features:
(i) OpenNMS comprises a discovery engine to routinely configure and manage network devices without operator intervention. It is written in Java and is issued under the GNU (General Public License.)
(ii) OpenNMS is the World's first software for Network monitor and management with opensource options.
OpenNMS- Types:
There are two types in this Meridian and Horizon.
Meridian: When we need stability and long term support choose Meridian which is best for Enterprises as well as businesses.
Horizon:
(i) It is used where innovation occurs frequently.
(ii) It is Best for IT-ecosystem, new technology monitoring.
History:
(i) OpenNMS was Released in 1999 by Steve Giles, Brian Weaver, and Luke Rindfuss.
(ii) In 2004 OpenNMS Group was created by Balog, Matt Brozowski, and David Hustace.
(iii) It is written in Java and can run on all type of platform.
(iv) It gives us Event management & Notification, Discovery & Provisioning, service monitoring, and Data Collection.
(v) Won a lot of awards for best of opensource software.

1. Credit card number: The modern credit card number has 16-digit unique identification number.
2. The first digit of the credit card number is Major Industry Identifier (MII).
i) It identifies the issuer category.
ii) e.g. 1 - Airlines,4 - Banks
3. The next 5 digits uniquely identify the issuing organization
4. The first 6 digits together called as Issuer Identifier number (IlN) or Bank Identification number (BIN).
5. The next 9 digits are the account number.
6. The last digit is a check digit (based to the Luhn algorithm).

Default Syntax:
The default Syntax begins with " < ?php"and closes with "? > ".

Short open Tags
(i) The Short open Tags begins with " < ?" andcloses with "? > " .
(ii) But admin user has to enable Short style tags settings in php.ini file on the server.

HTML Script embed Tags:
HTML Script embed Tags looks just like HTML scripts tags.

Use the zoom tool to magnify or reduce the display of any area in your publication
To magnify or reduce with the zoom tool
1. Select the zoom tool. The pointer becomes a magnifying glass with a plus sign in its center, indicating that the zoom tool will magnify your view of the image. To toggle between magnification and reduction, press the Ctrl key.
2. Position the magnifying glass at the center of the area you want to magnify or reduce, and then click to zoom in or out. Continue clicking until the publication is at the magnification level you want. When the publication has reached its maximum magnification or reduction level, the center of the magnifying glass appears blank.
To magnify part of a page by dragging:
1. Select the zoom tool.
2. Drag to draw a marquee around thearea you want to magnify
To zoom in or out while using another tool:
Press Ctrl+Spacebar to zoom in. Press Ctrl + Alt + Spacebar to zoom out.

Payment frauds have subsets like Friendly fraud (when customer demands false reclaim or refund), Clean fraud (when a stolen credit card is used to make a purchase) Triangulation fraud (fake online shops offering cheapest price and collect credit card data) etc.

(i) SG is the stage succeeds the 4G (LTE/WiMAx), 3G(umts) and 2G(GSM)syetems.
(ii) SG targets to performance the high data rate, reduced latency, energy saving, cost reduction, higher system, capacity, and massive device connectivity.
(iii) The two phasesof SG,First one will be Release-1S complete by March 2019, Second one Release- 16is expected to complete at March2020, for submission to the ITU (International Telecommunication Union) as a candidate IMT- 2020 technology.
(iv)  The ITU IMT - 2020 provides speeds up to 20 gigabits per second it has been demonstrated with millimeter waves of lS giga hertz and higher frequency. 3 GPPstandards includes any network using the New Radio software. SGNew Radio can accessat lower frequencies from 600 MHzto 6 GHz.
(v) Speed in the lower frequencies are only modest higher than 4G systems, estimated at lS% to SO%faster

These social networks share several attributes in common:
Membership.
Social nets all generally requires user to register namesand accounts for avoid duplicate and secrecy so many public networks offer free registration, but some charge fees for their premium services. Private networks (such as BANK ACCOUNT HOLDERS groups) restrict registration to people who meet certain eligibility criteria.
Content contribution.
These networks allow members to easily share comments, movies, music, short films and/or photos with others.
Frequent return visits.
Healthy social net takes a centers around a base of members who check in regularly to contribute theirs and also for new updates.
Human relationship building.
The common goal of most social networks is allowing the interactions that build stronger connections with in communities of people

< ?php
＄n = "February";
switch(＄n) {
case "January":
echo "Its January";
break;
case "February":
echo "Its February";
break;
case "March":
echo "Its- March";
break;
case "April":
echo "Its April";
break;
case "May":
echo "Its May";
break;
case "June":
echo "Its June";
break;
case "July":
echo "Its July";
break;
case "August":
echo "Its August";
break;
case "September":
echo "Its September";
break;
case "October":
echo "Its October";
break;
case "November":
echo "Its November";
break;
case "December":
echo "Its December";
break;
default:
echo "Doesn't exist";
}
? >