Answer:
Versatility
Explanation:
The capacity of computer of performing more than one task at the same time is called versatility of computer. Versatility means the capacity to perform different types of work completely
Answer:
Data link layer of OSI model is creating the erroneous segments
Explanation:
The Open System Interconnection (OSI) model is a conceptual framework about how communication occurs between devices over the Internet. It has seven layers, (Physical, Data, Network, Transport, Session, Presentation and Application layer). The purpose of this hierarchical layer system is to understand the structure of communication between devices and do troubleshooting easily if a fault occurs. As in this question, Marry is troubleshooting her company LAN network. She finds out that data segments that the client is encoding are resulting in errors in the encoding. Now the question arises, how she found the cause of the error. The OSI model helps her in understanding the problem.
As you know, the data link layer of the OSI model is responsible for the encoding and decoding of data segments. This layer ensures the reliability of the physical layer, and responsible to provide error-free transfer of data from one node to another on a network. It is also responsible for frame synchronization and flow control. The data link layer is divided into sub-layers:
1. Media Access Control Layer: this layer controls how a computer on the network gains access to the data and transmission permission.
2. Logical Link Control Layer: This layer controls frame synchronization, error checking and flow control.
Therefore, Marry founds data link layer of the OSI model is creating the erroneous segments in encoding.
Answer:
3rd;mobile;velocity;NoSQL;out;shards;dynamic;schema-less;value;column;Hadoop;MapReduce.
Explanation:
Big data refers to huge collections of data that are difficult to process, analyze, and manage using conventional data tools. It is a core component of the 3rd platform, which also includes cloud computing, mobile devices, and social networking. The five Vs of big data are high volume, high velocity, diversified variety, unknown veracity, and low-density value. Although SQL and relational databases can be used for big datasets, a collection of alternative tools referred to as NoSQL has become popular. These tools work well when databases scale out (horizontally) and when databases are broken into subsets called shards. Modern database tools also handle dynamic scaling as devices are added when additional capacity is required. NoSQL tools are sometimes said to create schema-less databases, but they usually have some type of structure, though it may be more flexible than the relational model. A key-value data model provides each data element with a key. A column-oriented data model makes it easy to access data stored in similar fields, rather than in individual records. Two very popular NoSQL tools include Hadoop, which is a big data file system, and MapReduce which sends processing logic to the data, rather than bringing the data to the computer that performs the processing.
Least privilege is the data access principle that ensures to unnecessary access to data exists by regulation members so that can perform only minimum data manipulation necessary. The principle of least privilege or as called as POLP is the run-through of controlling access to the minimal level that will permit normal functioning. The norm of least privilege interprets to giving people the lowermost level of user right that they can have and still do their jobs. The principle is also functional to things other than people as well as programs and processes. It is created in the US department of defense in the 1970’s and aimed to limit the potential damage of any security breach either accidental or malicious.
