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UNIX Commands/ Oracle Performance monitor

Question1
Command System activity report (sar)

The sar command is defined to have the general task of collecting, reporting or rather saving the information resulted from the system activities. The sar command initiates the writing onto the standard data/ information output the selected information regarding a cumulative activity counter performed in the operating system. The command is applicable in the sense of displaying the reports according to the duration that the system takes in writing the information. In the accounting system, the values can be outlined in count and the interval parameters and in this case the system will write the information depending on the intervals in seconds’ time. When the interval parameter is set at zero, then the sar command will only display the average statistics for the duration from the time the system was started. On the other hand the system interval parameter is defined and specified in absence of a count parameter then the sar command will generate reports continuously. Sar command is used for real time monitoring of the linux system performance in statistics (Prasad, 2014. The sar command is also applicable in collecting and storing information upon analysis bottlenecks are easily identified (Nataraj, 2011).

The Unix “Who” command

The who command is very useful for the display and printing of the information that related to the end users of the systems that are currently logged in the system. The who commands is executed for a duration of approximately 5 minutes and in the displays it displays the following information. the list of the users logged in the system, the time of the last boot, a list of dead processes, the list of login processes, counting of the login names and generally displaying the information of the logged on end users. The purpose of the who command is to display the end users logged on the systems. if person bypasses the server you can use the command to determined the persons that logged on your server (Gite, 2014).

Question 2A
Cumulative statistics
The cumulative statistics is described under cumulative probability and the cumulative frequency as well. The cumulative frequency defines the number of observations made that lies either above or below the particular value defined in the data set. And it is achieved or rather calculated by the use of the frequency distribution table.teh cumulative frequency is the same as the cumulative percentages though the percentage is advantaged with the power of easily comparing the sets of data. The cumulative probability is described as the probability that describes the value within a random variable will tend to fall within a specified value range.

Database metrics
Database metrics describes the activities undertaken about monitoring the performance of the database. The performance metrics are applied in the assessment of the health of the enterprise database. The metrics can focus on eth business transactions, the query performance, user and query conflicts, the capacity, configuration and the NoSQL databases (Habib, 2015). At times, the metrics are defined as long-term o average and they include the throughput, execution time, the concurrency and utilization.

Question 2B
Automatic workload capture feature
The workloads capture module s quite applicable in the monitoring of the external users activities and related transactions. The feature facilitates monitoring by recording the entire requests made by the database external users to the Oracle database. Once the feature is enabled, all the request done by the external users are redirected and stored in the capture files and this will facilitate the tracking of the transaction done by the external users. The capture files stores the information of SQL text, the bind values and the transaction information (Oracle, n.d).

Automatic performance diagnostic feature
The feature is applied when a problem is felt to have occurred within the database and thus the necessity of performing accurate and timely diagnosis of the developed problem before any measure of making changes.Teh automatic database diagnostic monitor undertakes an analysis of a top down series with the prior identification of the symptoms and then refining the symptoms until the cause of the performance problem is determined.

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How to succeed in Mathematics

In academics, plagiarism gets perceived as a crime that entails theft of another person’s work (often ideas or words in literature) and later presenting them as own. The documentation of another author’s work in your paper or article or book without acknowledging the original author gets viewed as an act of fraud. The copyright laws of the United States protect all forms of expression that have got recorded in some way including literature. This expression by an author, written or a songwriter gets considered as intellectual property that should not get presented elsewhere as own work, copied in any way and lack of or the wrong quotation. Plagiarizing as an offense attracts severe punishment and penalties in a majority of the academic institutions. However, this criminal act of stealing literature can get avoided through a few easy ways. First, scholars and learners should be creative as well as possess the habit of writing own original ideas. Second, an effective way of writing a plagiarism free paper is planning the paper in advance so as to develop adequately many own ideas and correctly add other people’s idea with required citations. Finally, citing correctly and obtaining the correct details of authors assists in avoiding plagiarism.

Another academic challenge experienced by a significant number of learners is succeeding in Mathematics. The learners have multiple troubles in Math that get attributed to poor approach to the subject at different academic levels. Below are Math study skills, guidelines for solving math problems and procedures undertaken in studying Math tests to ensure improved performance in Mathematics. Adhering to the Math Study skills can lead to better grades in Mathematics courses.

Effective Math Study Skills involve class attendance of all Math lessons as well as participating in the lessons. The student gains significantly by attending all Math classes as most professors, and lecturers teach Math examples hence allows the student to master formulas, concepts, and problem-solving techniques. It also offers the learner an opportunity to request for assistance in case they don’t fully understand a concept. Attending classes is also critical as most of the Math test questions get picked from the material that has got covered in classes. The Math classes in colleges and institutions are also significant as the material covered in each class precedes similar material in future classes (Hoyt & McGoldrick, 2012).

The other vital Math skill for a better understanding of concepts and formulas is the self-discipline of completing homework in post-high school institutions. Most of the time, the professors, and lecturers do not check whether the homework has got completed; however, the student should develop a habit of always completing them. It is vital for the student since undertaking assignments act as a self evaluation to identify what a student does not know. It also provides an adequate practice opportunity for the student.

Another vital Math skill is developing a habit of always requesting for assistance every time a student does not understand a concept well. The school setting provides different platforms where a student can get help such as asking the instructor during Math lessons or even at their offices. Another platform is asking fellow students in discussion groups or free time.

The performance in Math gets highly determined by the approach applied in undertaking Math tests. The following simple steps should get followed in Math tests for better grades. First, the student should look over the paper to have a glimpse of the length of the paper, to identify the questions to attempt and also plan their time effectively. The student should then attempt the questions, while carefully reading questions, showing clearly all their work and reviewing their answers.

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Wireless and Mobile Technologies

Study Case
Various companies around the world have known the need to move with the speed at which the technology is moving. They seem to have realized that company’s growth does not is not largely reflected on the size but the speed of service delivery. No industry has known this more than the airline industry around the world and most the United States airline industry. Delta is leading the way in the implementation of wireless and mobile technologies in a bid to leverage on the services they provide to their customers. The implementation of the modern technologies and mostly the wireless and mobile technologies has seen Delta being ranked among the best airline companies in the world.

Study Questions
Question 1
a) Wireless technologies are among the modern technological inventions. Wireless technologies involve the transmission of data and information from one place to another without the help of wires, cables or any forms of the electrical conductor. The distance of transmission can be anywhere between few meters (Television remote control) and several thousand miles (Radio communication). Wireless technologies use devices such as cordless telephones, GPS units, wireless computers, mobiles, and satellite television among others (Hayden et al., 2001).

b) Mobile technology is the exact dictation of the name. Mobile technology is the form of technology that is portable. It is a reference to any device and gadget that can be carried and help to perform various tasks. The technology allows the user to perform the tasks via cell phones, laptops, and PDA among others (Hayden et al., 2001).

c) Importance of wireless and mobile technologies

Wireless and mobile technologies enable professionals to work and have a functional access to the Internet from anywhere and at any time without the need to carry cables and wires wherever they move. Additionally, it helps to complete the work from anywhere and on time thereby increasing productivity.
Wireless and mobile technologies enable doctors, professionals and other workers working from the remote areas to be in touch with the medical centers and officers through mobile wireless communications.
Wireless and mobile technologies help to alert urgent situation. The affected areas can obtain help and support using the two technologies (Fette, 2008)
Question 2

Delta is one of the high-tech airline companies in the United States. The airline company has implemented several wireless and mobile technologies such as Wi-Fi, mobile apps such as Fly Delta App, Delta Ticket Counter, and Delta Away We Go App. It has also implemented some business functionalities within social media such as the Facebook and Twitter. One of the essential metrics for the airline industry is the level of technology. The metric enables investors to compare levels of efficiency at a particular airline. It represents the likelihood of growth in the future and how much operating revenue such an airline company generates. The implementation of wireless and mobile technologies has improved its efficiency. Delta is ranked as the most efficient airline for customer services which has been enabled by the technologies (Delta Staff Writer, 2012).

Question 3
People have grown to be accustomed to seeing improvements in their experiences with goods and services they buy. Airline companies provide transport services to their customers. Delta is among the companies. Forbes Magazine has recently listed the company as one of the customer friendly company. Furthermore, it is efficient in the way it serves the people. However, the improvements have come due to the implementation of various organizational systems, wireless technologies, and mobile technologies. All the improvements have been necessitated by the growing competition if the industry and the need to increase revenue. The company implements most of its technologies according to the trend and needs in the industry. All the technologies the company has implemented recently have been necessitated by the need to move with the speed at which the technology and the world are moving. Additionally, the company evaluates the available technologies before deciding the most suitable and one which will bring the desired changes in the company (Delta Staff Writer, 2012).

The level of efficiency of the implementations has catapulted the company to great heights. The company’s listing as one of the most airlines has not come due to anything else other than the efficiency of the service due to its customers. The efficiency has been made possible by the various organizational systems, wireless technologies, and mobile technologies. The company has beaten several companies that have lagged behind in such technological implementations and deployment (Delta Staff Writer, 2012).

Question 4
Delta Airlines is one of the airline companies using their mobile and wireless technologies most strategically. The company could be the most strategic in the application of the mobile and wireless technologies. The above is true due to the various technologies it has implemented to serve the customers in the best way. Some of the technologies are the Wi-Fi in all its carrier airplanes. Wi-Fi is a wireless technology, and no other company has implemented. It is likely that most of the companies which will implement the technology later will borrow from Delta. The company has also developed various mobile applications such as Fly Delta App, which provides e-Boarding check-in options in more than eighty cities where the Delta operates around the world. Delta’s Ticket Counter is also one of the applications that enable booking through the Facebook without having to navigate to the company’s website. The company also has an innovative tool like the Delta Away We Go, which allows the customers share and plans their traveling experience with friends and families. Delta beats most of its competitors due to such technological implementations. The company would not have probably beaten other airline companies if they had such implementations. The fact that it has emerged top is an indication that most of its competitors are lagging behind in implementation, or their implementations are not strategic (Delta Staff Writer, 2012).

Question 5
The success of the business depends on its speed of goods and services delivery as opposed to its vastness. Businesses rely on the quick exchange of information. Wrong data and information lead to delays and eventual suffering of service and productivity. Mobile and wireless technologies have become essential for getting accurate and real-time information wherever and whenever it is needed. However, such technologies cannot function without support. Therefore, they require enterprise technologies to leverage the technologies. Some of the technologies are LAN. LAN enables the companies to track and connect their workforces using the Voice over IP (VoIP). Additionally, Delta has been using Facebook as an enterprise system. It does so by the use of Delta Ticket Counter which allows customers to book travel through the Facebook. Other enterprise systems are the company’s website and various mobile phones on which the applications will be installed (Delta Staff Writer, 2012).

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