Nt1330 Unit 1 Assignment 1

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3.5 Data Integrity by Trusted TPA Using MHT:-
In HDFS, the data is stored in multiple racks at a data center in a cloud environment.
Each rack is stored at the main assignment table in rows and columns. The rows consist of multiple blocks, and the columns contain multiple nodes. However, the issue of large datasets arises. The solution to this problem of large datasets is data partition (i.e, breaking larger datasets into blocks). The data items stored in each block are linked by a block pointer. Thus, each data block stores the replicas. One of the biggest challenges of creating multiple replicas is data inconsistency. The key solution to the above discussed issues and data integrity can be resolved by using a data structure, called MHT, which takes less storage space. …show more content…
But if a new key is found, an update is performed. In MHT, every multiple replica is indexed by the index key stored at the root node, and the TPA veries the datasets with multiple replicas of a particular domains attributes.
The security model is implemented in a healthcare domain to keep the patient health record
(PHR) information of each patient secure by encrypting with the CP-ABE scheme on the cloud
. The PHR of each patient is maintained, and the patient has full access to monitor his/her record online after performing proper authentication. For example, a physician can only access the records of a patients sensitive information such as personal record or medical record. Also, a physician can perform update and verication of the medical record at multiple replicas by constructing a layered model of an MHT having replicas of the original record at every sub-tree.
Therefore, a relationship exists in the database of a le hierarchy like (patient 1 OR patient
2) diagnosed by any physician (physician 1 AND physician 2). By public data auditing, the integrity of the datasets is checked using an external party, that is, TPA. Motivated by

Nt1330 Unit 1 Assignment 1

5. Question The web 2.0 is combining features such as AJAX and JSON to facilitate the creation of new types of web application, these features can also be considerate new vulnerabilities to the web (Gollmann, D. 2011. p 352). Why are they considerable as new vulnerabilities for the web? 5.1 Answer The new features can be used to extend the Cross site request forgery a method for attackers to reveal confidential information from servers. The method can be considered working as a broker communicating…

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Nt1330 Unit 1 Assignment 1

COMP 3020 Assignment 1 Arveen Mayordomo Student Number: 7695759 Breadth: The interaction with the alarm clock was setting it to 5 am for the next day, and it ringing at the designated time. The interaction was successful as the sounds of the alarm woke me up. It was poor however as I had missed my time within a couple of minutes as I was used to the sound of the alarm. A workaround I have found to overcome this problem was to set different alarm tones several minutes apart in order to guarantee…

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Nt1330 Unit 1 Assignment 1

There are multiple tools available online that will assist you with the task of calculating what your monthly mortgage payment could be; these tools take into account the principal amount (actual price of the home), your down payment amount, your interest rate, PMI (private mortgage insurance), and the amount needed in your escrow account. It is important, as an informed homebuyer, to know what factors are taken into account when calculating your monthly mortgage payments. Principal Amount The…

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Nt1330 Unit 1 Assignment 1

There are important roles in our proposed model that control execution of all process in the system. Every role affects the efficiency of the proposed model to provide best services for cloud users. These roles are listed as follows: 1- PKG gives data owner user public key (user ID) for every user in the system. 2- The Data Owner stores encrypted files on the cloud server with attributes. 3- When a user requests access, he would obtain the file`s secret key from the Data Owner. 4- Cloud Server gives…

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NT1330 Unit 1 Assignment 1

Two advances in technology began to change Information technology. The first was the development of powerful microprocessors. The current generation of computers have the computing power of the mainframes deployed 30 or 40 years ago, but for 1/1000th of the price or less ( Steen, & Tanenbaum, 2016). The second development was the invention of high-speed computer networks. Local-area networks or LANs allow thousands of machines within a building or campus to be connected in such a…

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Nt1330 Unit 1 Assignment 1

21. Information available in the properties are as follow: General tab, providing type of file, programs opening it, location, size, size on disk, date created, modified, accessed date. The security tab listing the permissions, the detail tab providing description and origins, and lastly the previous versions tab providing any older versions. 22. The command Save, overwrites the previous file with the current changes you have made to the file. The command Save As, permit you to save any changes…

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Nt1330 Unit 1 Assignment 1

The Homegroup I am necessarily working on remains installed with a genuine edition of Windows 8.1 and the problem occurred, as and when, I was sharing a printer with my system loaded with Windows 7. It was simply after I upgraded to a new edition of Windows 10 that I found that my system failed to carry out the “print” operation in the proper manner. Cant create or join home group on this computer. Windows 10 It was simply after I carried out the installation phase of Windows 10 Preview that I was…

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Nt1330 Unit 1 Assignment 1

SCADA (Supervisory Control and Data Acquisition) is typically central control unit that contain high level operation functionally and as well as control center with interface for the process operator. Today raising interconnectivity of SCADA network with instantly to the Internet and corporate office networks will continue to increase exposed to a growing risk of cyber crime and a critical need to improve the security of these SCADA networks. In large scale of IT-infrastructures such as ICT (Information…

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Nt1330 Unit 1 Assignment 1

Within the first couple weeks of this class I had found a project, had it fall through, and had to find another project. That is how I came across the project for Dr. Erik Hom from the biology department. Dr. Hom’s lab has a project where they are collecting biological samples from all over the world. Each of their samples have metadata associated with the samples. Up to this point, they had no place to store all of this data. So, the primary goal of this project would be to create a web based place…

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Nt1330 Unit 1 Assignment 1

such this tier contains the file system and the database. Further, because the database will contain only information regarding files, the actual file system containing the media content resides in the Data Storage tier too. The diagram below (Figure 1) show’s a “light weight” architecture that uses REST. One of the benefits of this architecture is that the data services are completely decoupled from the applications that consume them. This means, in real live there could be one team working on the…

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