Hashing

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    The gradual transformation in data quantity has resulted in emergence of the Big data and immense datasets that need to be stored. Traditional relational databases are facing many difficulties meeting the requirements of the volume and heterogeneity structure of big data. NoSQL databases are designed with a novel data management system that can handle and process huge volumes of data. NOSQL systems provide horizontal scalability by supporting horizontal data partitioning across heterogeneous nodes. In this paper, a MapReduce Rendezvous Hashing Based Virtual Hierarchies (MR-RHVH) framework is proposed for scalable partitioning of Cassandra NoSQL databases. MapReduce framework is used to implement MR-RHVH on Cassandra to enhance its scalability…

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    Nt1330 Unit 3 Assignment 1

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    Each zone is constructed as virtual hierarchical that are geographic -specific. Each zone has a pre-defined number of nodes and a coordinator 〖C(i)〗_11^1to these nodes. The coordinator is assigned based on the proposed IHRW hashing algorithm, as illustrated in heuristic 3. Heuristic 3: The adaptive HRW protocol proposed in figure 5 is implemented in each level of the virtual hierarchical. Suppose the system contains n_od nodes that will be divided into number of Rendezvous geographic Zones…

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    The security level of a computer system depends on the reliable level of the cryptographic primitives. Here is a detailed graphic on what is included and the types of cryptographic primitives in the CNG. Figure 6.1 CNG cryptographic primitives Among all the types of cryptographic primitives, one-way hashing function and encryption function are most commonly used in our daily life. One-way hashing function is used to identify data and encryption function is used to encrypt data. Hence, to…

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    Amazon Company Reliability

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    Key problems and solutions of building a highly available, scalable and reliable distributed system by the name Dynamo are addressed by the Author in the article. Reliability will be achieved by using the replication. Sloppy quorum and anti-entropy with Merkle trees will be used for management impermanent, permanent failures. Incremental scalability will be achieved by use of constant hashing to divide the keys. The article addresses the problem that is based on building a production level…

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    Loss Of Evidence

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    It is used to create an ISO image into a bootable CD. It also has the ability to examine disks and images that was created by using other forensic software. It allows a user to access file systems in windows, mac,solaris and linux. Xways tool is a product of X-ways software technology; it is a collection of tools that are used to examine media images. It has features and capabilities like displaying deleted and existing files and graphics viewer. Hashing involves transforming string characters…

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    Digital Forensics

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    With that being said, the purpose of writing this document will aide in helping to train patrol officers in how to do a complete analysis when collecting and analyzing digital evidence. The document that I have written for the training division includes the following types of computer forensic concepts which are write blocking, bit-by-bit or bitstream copying, hashing or hash valves, forensic analysis, indexing process and the recovering of deleted and encrypted files. These concepts are…

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    allows for faster acquisition of data, as well as it eliminates common errors of transcription by ensuring correctness and meaningfulness of the acquisition method to be used. It’s also necessary to validate data acquisition since this guarantees accuracy and consistency of the data to be acquired as described by Chu et al. (2011). Failure to validate data acquisition not only makes data acquisition slow, but also increases the chances of data modification. Therefore, it makes it somewhat hard…

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    Nt1310 Unit 1 Case Study

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    1. Message confidentiality means that a message being sent cannot be read by anyone other than the intended recipients, and message remains confidential and it cannot be read by unauthorized ones. Integrity defines the process of data is modified based on cryptographic procedures like hashing and message code techniques that ensures the message is not modified. A message which is encrypted that is modified in transmitting can't be determined the original text, but rather will not have integrity…

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    Tillie Olsen, author of I Stand Here Ironing, writes about a mother struggling to make ends meet with her eldest daughter, Emily. Recently approached by a school administrator (one who has asked for a face-to-face meeting discussing Emily), the mother uses the time while ironing to revisit the memories of when she first had Emily and was left to raise her alone during the Great Depression. This was a time in history when poverty and hardship accumulated and became an economic crisis. The…

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    Nt1310 Unit 7 Assignment 1

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    secure our encrypted data: 4 Integrity: 4 Overview of cryptography: 6 Conclusion: 6 Task 2: Applications of cryptography in Electronic Transactions and VPNs 7 Cryptography in VPNs 7 Secure Electronic Transactions 9 Task 3: Windows and their authentication methods from NT to Latest Windows Environment? 10 Authentication: 10 Types of authentications: 10 Types of authentication Protocols: 11 Task 4: What is Kerberos Protocol? How it works inside in a LAN. 12 Kerberos: 12 How it works inside in a…

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