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  Cloud computing is an on-demand delivery of IT capabilities, in which IT infrastructure and applications are provided to subscribers as metered services over networks. Examples of cloud solutions include Google Cloud Platform, Amazon Web Service (AWS), Microsoft Azure, and IBM Cloud. Characteristics of Cloud Computing Discussed below are the characteristics of cloud computing that attract many businesses today to adopt cloud technology. On-demand self-service : A type of service rendered by cloud service providers that allow provisions for cloud resources, such as computing power, storage, and network, always on-demand, without the need for human interaction with the service providers. Distributed storage : Distributed storage in the cloud offers better scalability, availability, and reliability of data. However, cloud distributed storage can potentially raise security and compliance concerns. Rapid elasticity : The cloud offers instant provisioning of capabil...

LAN Troubleshooting Problem Areas Certification Objectives Physical Layer Responsibilities Data Link Layer Responsibilities Ethernet / IEEE 802.3 Token Ring / IEEE 802.5  FDDI  ATM LAN Emulation (LANE)  Encapsulation Methods      It’s not much fun first thing on a Monday morning getting swamped with calls from employees, clients, and customers complaining about extremely slow network response times. As a network administrator it is your responsibility to isolate the problem and determine the root cause. Often there are no apparent symptoms other than the bottleneck caused by everyone arriving at work and jumping on board to log in to various systems, retrieving e-mail, and surf the Web.      The emergence of corporate intranets presents significant challenges for LAN administrators and network managers. Traditionally, traffic patterns have been governed by the 80/20 rule (80% of traffic is destined for a local resource, while 20% of traffic r...