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There are various techniques of database security which are as follows −Secure network connection − The mobile database and the main database have to be synchronized at definite times. The synchronization is performed in the system software of the mobile database and is implemented over the http protocol.Encrypted local database − The local database on the mobile device is encrypted and every time the user opens the mobile database, it has to enter his password. In case the mobile device is taken or broken by an intruder, the data that is stored on the local database is not understandable. The ... Read More
There are various strategy of mobile database system which are as follows −Perfecting the Authentication Mechanism − It can avoid illegal terminal access deceptively and background information can be damaged, it is required for identity authentication, when mobile user and service database operating synchronous in the mobile database system.When it required to connect or disconnect mobile user, the mobile database needs to carry on identity verification itself, because the users input their user name and password, so can query, change the local caching after verification in mobile user. But the mobile user is needed to verify identity in the database ... Read More
A mobile database is said to be a database that can be related to by a mobile computing device over a mobile network .The client and server include wireless connections. A cache is maintained to hold recurrent information and transactions so that they are not lost due to connection failure.A database is a structured manner to organize data. This can be a list of contacts, price data or distance travelled. The application of laptops, mobiles and PDAs is increasing and possible to augment in the future with successively more applications locating in the mobile systems.Some applications like databases would require ... Read More
Database security contains securing the database from permitted access, alteration or elimination. Because the database defines an essential corporate resource, database security is an essential subcomponent of some organization’s complete information system security plan.Moreover the requirement to keep and secure information for the smooth services of the organization, database designers have the authority to secure the privacy of individuals about whom data is maintained.Privacy is the right of individuals to have some control over data about themselves. Some countries have laws designed to secure privacy, and each organization that collects and stores data about individually is legally obliged to adopt ... Read More
Database security defines the collective measures used to protect and secure a database or database management software from unauthorized use and malicious cyber threats and attacks. Database security is a layer of information security. It is basically concerned with physical protection of information, encryption of data in storage and data remanence problem.Securing the database is a basic principle for some security workers while mounting the security plan. The database is a compilation of beneficial information and can be treated as the most important constituent of an organization and its economic enlargement.Accordingly, some security effort should remember that they need to ... Read More
Data security defines the process of protecting data from unauthorized access and data corruption throughout its lifecycle. Data security involves data encryption, hashing, tokenization, and key administration practices that secure data across some applications and platforms.Security database professionals have to depend on network management for implementing firewalls or other structure to defend local information as the nature of Intranet/Internet data access is though the database administrator (DBA) has to carry out some security function. This unit will scrutinize the fundamental security areas that fall within the area of the DBA, who then has to create database familiarized solutions.The security of ... Read More
Database security defines the collective measures used to protect and secure a database or database management software from unauthorized use and malicious cyber threats and attacks. There are various principles of database security which are as follows −Security models − A security model creates the external element for the examination of security problems in general, and supports the context for database considerations, such as implementation and operation.Access control − The objective of access control should always be clear. Access control is costly in terms of analysis, model and operational costs. It can be used to known situations, to known standards, ... Read More
There are various types of threats which are as follows −Unauthorised modification − It can be changing data values for reasons of sabotage, crime or ignorance which can be allowed by inadequate security structure, or sharing of passwords or password guessing.Unauthorised disclosure − When the information should not have been revealed. A general problem of central importance, which can be accidental or deliberate.Loss of availability − When the database is not available it acquire a loss. Therefore any threat that provides rise to time offline, even to check whether something has appeared, is to be avoided.Commercial sensitivity − Some financial ... Read More
In this problem, we must build C++ code to determine whether or not an array may be divided into two equal subarrays. Also, we have to check the condition if the sum of all the elements in both subarrays is exactly the same or not. The partitioning problem is a variant of the Subset Sum Problem, which is in turn a variant of the Knapsack Problem. We'll use the C++ programming language to tackle the partition problem. We must return a string with a Yes or No depending on whether the specified condition is fulfilled or not.Inputarr[] = {6, 4, ... Read More
The operation integer division is also called floor division, which is equivalent to // in python. And it is a binary operation nothing but an element-wise division operation that returns a new value.In the pandas series class, there is a method called floordiv() which performs the element-wise integer division operation between a series object and a scalar. And this method can also be used to perform floor division between two series objects.The output of this method is a new series with the result of the operation. And it has 3 parameters, which are fill_value, other, and level. The other parameter ... Read More