VIRTUALIZATION TECHNOLOGY
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Virtualization is a technology that allows multiple simulated environments or resources to be created from a single physical system. It involves abstracting resources like servers, storage, and networks so they appear dedicated but are actually shared. Virtualization provides benefits like isolation between users, resource sharing, flexibility, security, and cost savings by eliminating the need for multiple physical systems. It works by using virtualization software to run multiple operating systems and applications on the same server simultaneously while maintaining isolation between them.
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software, applications, and business processes. The exact definition of cloud computing is A
large-scale distributed computing paradigm that is driven by economies of scale, in which a
pool of abstracted, virtualized, dynamically scalable, managed computing power, storage,
platforms, and services are delivered on demand to external customers over the Internet .
Virtualization in cloud computing ppt
Virtualization allows multiple operating systems and applications to run on a single server at the same time, improving hardware utilization and flexibility. It reduces costs by consolidating servers and enabling more efficient use of resources. Key benefits of VMware virtualization include easier manageability, fault isolation, reduced costs, and the ability to separate applications.
Cloud computing by shashank
Cloud computing is a type of internet-based computing where services such as servers, storage, and applications are provided to organizations through the internet. It offers advantages like lower costs, unlimited storage, and universal access to documents from any device. However, it also has disadvantages like requiring a constant internet connection and potential security issues if data is not properly secured. There are different types of cloud models including infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS).
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Negotiation
1) Negotiation involves factors like power, concessions, leverage, resources, and attitude.
2) Case 1 describes a negotiation between Mark and Tom over the sale of a car, where identifying their best alternative to a negotiated agreement (BATNA) is important to the negotiation.
3) Case 2 describes a negotiation between an employee and HR department over compensation level and salary, where approaching with honesty and understanding led to a 25% increase in the initial offer.
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This document discusses queueing networks and probability models. It defines queueing networks as interconnected queues and describes open, closed, and mixed queueing networks. Open networks have external arrivals and departures, while closed networks have a fixed number of jobs. Mixed networks can be open for some workloads and closed for others. The document provides examples of different network types and discusses properties like jockeying. It also covers traffic equations used to determine throughput and mean value analysis for solving closed networks.
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This document discusses operating system security. It begins by defining security as ensuring confidentiality and integrity of the OS. It then discusses common security problems like systems being targets for thieves. Security can be threatened by threats and attacks, which are intentional violations like malware or accidental issues like denial of service attacks. The goals of security systems are integrity, secrecy and availability. Attacks use methods like masquerading, replay attacks, and man-in-the-middle attacks. Security is protected at the physical, human, operating system and network levels. Measures include access control, encryption, authorization and detecting intrusions.
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Integration testing is a process that tests the interfaces between integrated software modules or units. It aims to expose faults in their interaction by deploying modules together and tracking defects from test results. There are various challenges like managing complex integration between new and legacy systems from different companies. Different types of incremental approaches include top-down, bottom-up, and sandwich methods, as well as a big bang approach for small systems. Integration testing provides benefits like early testing, detecting interface errors, and improving test coverage and reliability.
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Inheritance allows classes to inherit properties and characteristics from other classes, called base classes. There are different types of inheritance including single, multiple, multilevel, and hierarchical inheritance. Inheritance is useful for code reuse - for example, creating subclasses for different vehicles like cars, trucks, and buses that all inherit common methods from a base Vehicle class, avoiding duplicating code. Inheritance can be public, protected, or private depending on which members need to be accessible to subclasses.
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### How TDM Works
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3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
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### Applications of TDM
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- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
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### Advantages of TDM
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VIRTUALIZATION TECHNOLOGY
- 2. INTRODUCTION Virtualization is technology that allows you to create multiple simulated environments or dedicated resources from a single, physical hardware system. Creation of a virtual -- rather than actual -- version of something, such as an operating system, a server, a storage device or network resources.
- 3. VIRTUALIZATION Virtualization refers to Abstraction of the computer resources. It refers to creation of a virtual resources such as server, file or network
- 4. CONCEPT OF VIRTUALIZATION Virtualization describes a technology in which an application, guest operating system or data storage is abstracted away from the true underlying hardware or software. A great example of how virtualization works in your daily life is the separation of your hard drive into different parts. It started as the ability to run multiple operating systems on one hardware set and now it is a vital part of testing and cloud-based computing.
- 5. WHY? ❏ Isolation among users ❏ Resource sharing ❏ Dynamical resources ❏ Aggregation of resources
- 6. IS IT SECURE? ► Virtualization is an elegant solution to many common security problems. ► In a development environment, each developer can have their own sandbox, immune from another developer’s rogue or runaway code. ► When VMs and applications are properly isolated, only one application on one OS is affected by an attack.
- 7. HOW IT WORKS? ● Virtualization software makes it possible to run multiple operating systems and multiple applications on the same server at the same time” – Mike Adams, VMware ● Provide applications with the standard versions to their cloud users. ● Normally in the cloud computing, users share the data present in the clouds like application Virtualization users share the Infrastructure.
- 9. SECURITY ● Security is one of the important concerns. ● Prevents unauthorised access. ● Protection from Harmful viruses and Cyber threats. ● Encryption process: It takes place with protocols which will protect the data from other threats.
- 10. ECONOMICAL ● Saves the cost for a physical system such as hardware and servers. ● Stores Data in Virtual server. ● Reduces the wastage, decreases the electricity bills.
- 11. FLEXIBLE OPERATIONS ● The network switch implemented today is very easy to use, flexible and saves time. ● It eliminates the problem of recovering the data from crashed or corrupted devices and hence saves time.
- 12. FLEXIBLE DATA TRANSFER ● The data can transfer to the virtual server and retrieve anytime. ● Easy to locate the required data and transfer them. ● Additional storage is provided.
- 13. ELIMINATES RISK OF SYSTEM FAILURE ● Failure can cause damage to the company but the virtualizations help you to perform the same task in multiple devices at the same time. ● Even if a server crashes with the help of the second server the customer can access the data.
- 15. THANK YOU