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How to Ease the Transition to Cloud Computing
The cloud model has lots of benefits, but it still represents change — and there are inevitable cultural issues that arise when you ask people to do things differently. To ensure the success of your new [more…]
How to Calculate the Cost of Applications in a Cloud Computing Data Center
The simple fact is that cloud computing data center won’t necessarily be the best option for your company. When evaluating the cloud option, it is important to accurately calculate the cost of applications [more…]
Cloud Computing Delivery Models
The following figure shows the various types of cloud services as three distinct models: Infrastructure as a Service, Platform as a Service, and Software as a Service. In reality, the lines between the [more…]
Cloud Computing Models
Cloud computing models vary: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Manage your cloud computing service level via the surrounding management [more…]
Deploying Public, Private, or Hybrid Clouds
Cloud computing happens on a public cloud, private cloud, or hybrid cloud. Governance and security are crucial to computing on the cloud, whether the cloud is in your company’s firewall or not. [more…]
Cloud Computing Characteristics
Cloud computing requires searching for a cloud provider. Whether your cloud is public, private, or hybrid, look for elasticity, scalability, provisioning, standardization, and billed usage: [more…]
Cloud Computing Issues
Cloud computing issues span models (IaaS, PaaS, or SaaS) and types (public, private, or hybrid). Computing on the cloud requires vigilance about security, manageability, standards, governance, and compliance [more…]
Cloud Computing Cheat Sheet
Cloud computing enables Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Cloud computing means that infrastructure, applications, and business processes [more…]
Top Benefits of Unified Messaging
Unified messaging provides a number of benefits for users to manage their businesses with accessible, interfaced electronic communication systems, such as e-mail, voice, messenger services. [more…]
Key Unified Messaging Features
The concept of unified messaging and the features it delivers vary from vendor to vendor, but in general these are some of the capabilities you can expect: [more…]
Unified Message Viewing Tools
With unified communications and the convergence of voicemail with e-mail and with the PC desktop, you have new ways to interact with voicemail messages. You're probably used to some sort of light on your [more…]
Unified Voicemail and E-Mail
Voicemail is an essential unified communications feature to have for a phone system. The capability to leave a voicemail is certainly better than having the phone ring indefinitely with no way to reach [more…]
Unified Message Sharing
Because unified messaging enables you to receive your voicemails and faxes embedded or attached to e-mails in a single, unified inbox, it also enables you to work with those message types any way you can [more…]
Unified Communications For Dummies Cheat Sheet
Unified communications can link all of your messages and contacts into a single presence. You can see, hear, and communicate with colleagues and customers through any common channel, and route it to a [more…]
Reasons for Moving to Virtualization
If you’re trying to decide if virtualization is right for your organization, whether from an economic or technological standpoint, consider these reasons for taking the virtualization plunge: [more…]
Types of Virtualization
Currently, most of the activity in the virtualization world focuses on server virtualization —– the data centers or server farms. The three main types of server virtualization are: [more…]
Major Players and Products in Virtualization
Once you’ve decided on switching to a virtualized environment, where do you go for solutions, support and products? This list represents the major players in virtualization: [more…]
Virtualization Project Steps
After you’ve evaluated virtualization and want to move forward with it, it’s time to implement a virtualization plan. Don’t jump right in, the first steps are to create a virtualization project using these [more…]
Virtualization Mini-Glossary
To help you get a better understanding and expand your knowledge of virtualization, get to know these useful terms and how they apply to virtualization and its process: [more…]
Virtualization For Dummies Cheat Sheet
Virtualization saves money, energy, and space. After you’ve decided to go virtual, take steps to make implementation easier: Get to know some important terms about virtualization, types of virtualization [more…]
OSI for CCNA Layer 3: Network
The CCNA exam covers data packets; the network layer routes data packets across networks that link the sending and the receiving host. In a nutshell, the network layer does the following: [more…]
OSI for CCNA Layer 2: Data Link
The CCNA exam has extensive coverage of data routing. Data routing is handled by the data link layer of the OSI. The data link layer does the following: [more…]
OSI for CCNA Layer 1: Physical
The CCNA exam has extensive coverage of hardware. That's the physical layer. The physical layer provides the electrical, optical, or over-the-air connection between the sending host device and the receiving [more…]
OSI for CCNA Layer 7: Application
The CCNA exam requires knowledge of the OSI reference model's application layer. This layer represents the various network applications such as e-mail reader, Web browser, Hypertext Transfer Protocol [more…]
OSI for CCNA Layer 6: Presentation
As you prepare for the CCNA exam, the presentation layer is mostly concerned with data format. It converts the data between different formats so that both the sender and the receiver can use heterogeneous [more…]
