Answer:
144°
Explanation:
The sum of the measures of interior angles of a quadrilateral is 360°
The ratio of angle measures is 1:2:3:4
Total ratio = 1+2+3+4=10
The angles will be :
1/10 * 360°= 36°
2/10*360°=72°
3/10*360°=108°
4/10*360°=144°
The largest angle is 144°
Solution:
The process of transaction can guarantee the reliability of business applications. Locking resources is widely used in distributed transaction management (e.g; two phase commit, 2PC) to keep the system consistent. The locking mechanism, however, potentially results in various deadlocks. In service oriented architecture, the deadlock problem becomes even worse because multiple transactions try to lock shared resources in the unexpectable way due to the more randomicity of transaction requests, which has not been solved by existing research results. In this paper, we investigate how to prevent local deadlocks, caused by the resource competition among multiple sub-transactions of a gl obal transaction, and global deadlocks from the competition among different global transactions. We propose a replication based approach to avoid the local deadlocks, and a timestamp based approach to significantly mitigate the global deadlocks. A general algorithm is designed for both local and global deadlock prevention. The experimental results demonstrate the effectiveness and efficiency of our deadlock prevention approach. Further, it is also proved that our approach provides higher system performance than traditional resource allocation schemes.
This is the required answer.
Answer:
TLS
Explanation:
In the field of computer security, TLS refers to Transport Layer Security it is closely related to the Secure Sockets Layer (SSL) although TLS is more commonly used these days. They are both techniques in cryptography that provides for the safe transfer of information between two parties (servers, systems and user applications)
TLS particularly provides a balance between transmission speed and data security through the use of symetric and asymmetric cryptography and the encryption and decryption key is the session key at both ends (sender and reciever), as such TLS has found usage in most advanced data exchange systems like credit card processing and online banking.
Answer:
When a programmer tries to access an item in an array cell whose index is greater than or equal to the array's logical size, this data element or item is garbage. This means that currently, the item is not the part of the program's useful data. Garbage contains objects or data which will not be used by a program running on it. So the value returned could be either of the two:
- Value would be an arbitrary or random number if it is an array of numbers. Arbitrary means that the value is not predefined or specified in advance.
- Value returned would be null if it is an array of objects.
Answer:
d. by increasing their customer knowledge and leveraging that information to improve customer experience
Explanation:
Consumers are at the heart of all businesses as they are the ones who our product are targeted. They purchase these goods and the company makes profit. Therefore, it is paramount for businesses to identify their target consumers in other to understand their preference and serve them accordingly. With data analytics, a consumers purchase history, likes and viewed products may be used to improve relationship between consumers and service providers. Once a consumer's preference is anlysed using data, then this is leveraged to improve the kind of service offered to such consumer leasing to better consumer experience.
