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Archive for the ‘Certification Tests’ Category

I learned a little more about IGMP and PIM this morning. Hosts use IGMP (Internet Group Management Protocol) to register with the router to join or leave specific multicast groups. The router is then aware that it needs to forward the data stream destined to a specific multicast group to the registered hosts. There are currently three versions of IGMP, versions 1, 2, and 3.

• IGMPv1 – periodically sends membership queries (60-120 sec) to the all-hosts multicast address 224.0.0.1. IGMPv4 doesn’t have a mechanism defined for hosts to leave the multicast group. There for IGMP routers learn that a group is no longer available when it times out from not receiving any queries from that particular group.
• IGMPv2 – has group-specific queries that allows a router to query membership only in a single group instead for all groups. Instead of waiting for a timeout from a particular group, the last hosts that are apart of a multicast group sends the router a specific message that it’s leaving said group.

I started the last chapter of the CCNP Study Guide book today which is about implementing IPv6 (IP Version 6). IPv6 is a technology developed to overcome the limitations of the current standard, IP Version 4 (IPv4). The major shortcoming of IPv4 is its limited amount of address space. With the amount of IP enabled devices growing at a steady rate, many regions throughout the world are seeing a need for more IP addresses. In the United States, the Department of Defense (DoD) is a primary driver for the adoption of IPv6 and has set a date of 2008 for all systems with the US government to be set to this standard.

IPv6 allows for better scalability with networks and supplies what seems like a limitless amount of IP addresses to use. IPv6 provides the following enhancements:

From the past decade, it has been observed that so many technologies are changing the way of lifestyle. One of them is the internet technology, with this technology; so many people are getting opportunities in different continents. To obtain these opportunities, every one of us needs some fine quality of qualifications, and we need to improve professional skills. However, everyone’s life has become busy scheduled and so many people are having no time to add some more qualifications to their skills.

The online tutorials are one of the best ways to learn our desired courses. Every one of us believes that the computers are an ocean subject to learn. With these tutorials, everyone can become professional towards computers. And learning through online tutorials will give you more fun and enjoyment. In these recession days, adding some qualifications to you skills will boost up your opportunities. Most of these online tutorials are available at free of cost, some of them are charging a few dollars to provide some additional features. In these technology days, the computer courses like Photoshop, HTML, PHP, Java Script and adobe Photoshop are providing numerous job opportunities. Here we will discuss some of these online courses.

Courses Overview:-

IBM Mainframe Tutorial is designed as per the latest industry requirements. Prime focus is given on the topics like: Common editor line commands, Common editor commands, Common flasher list commands and common text commands.

Tutorial covers the following topic:

1. Introduction
2. Prerequisites
3. Basic of migration
4. Maintenance
5. Supported products and integration.

Objectives:-

Integrating main frame into the mainstream of Information technology management results in a number of compelling benefits for the organization as a whole specially for the concerned staffs.

The increasing popularity of virtual machine technology means each mainframe system can now support more than a thousand virtual machines. It can “suit” applications that might otherwise have been hosted to other server platforms, even though the applications are more suited to the mainframe.

VMware vSphere is the original distributed package, capable of supervising huge pools of virtualized digital infrastructure including hardware and software. It is is highly recommended to take this class to advance in the clouding field.

By finishing the training you would be able to become a VMware Certified Professional and lead minor/mid and enterprise office. With this preparation, you must be able to bolster control through service level automation, help conserving operating amounts and maximizes IT effectiveness.

These courses are customized to system administrators, infrastructure architects, infrastructure engineers, IT leaders and users responsible for ESXi, ESX, VMware infrastructure and/or vCenter Server. VMware haves two lessons: Here are some tips for the installation, configuration and overseeing of VMware vSphere version 4.

Requirements are System controllers proficient in Linux or Microsoft Windows Operating infrastructure (software). The lesson lasts 4 days and is centered on vCenter Server 4.0 ESXi 4.0 and ESX 4.0. Some of the Modules that you will learn are Networking, Storage, virtual Machines, Access Control, Remote Monitoring, Scalability, High Availability and Data Protection.