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Web Hosting - Bandwidth and Server Load, What's That?
Two key performance metrics will impact every web site owner sooner or later: bandwidth and server load.
Bandwidth is the amount of network capacity available, and the term actually covers two different aspects. 'Bandwidth' can mean the measure of network capacity for web traffic back and forth at a given time. Or, it sometimes is used to mean the amount that is allowed for some interval, such as one month. Both are important.
As files are transferred, emails sent and received, and web pages accessed, network bandwidth is being used. If you want to send water through a pipe, you have to have a pipe. Those pipes can vary in size and the amount of water going through them at any time can also vary.
Total monthly bandwidth is a cap that hosting companies place on sites in order to share fairly a limited resource. Companies monitor sites in order to keep one site from accidentally or deliberately consuming all the network capacity. Similar considerations apply to instantaneous bandwidth, though companies usually have such large network 'pipes' that it's much less common for heavy use by one user to be a problem.
Server load is a more generic concept.
It often refers, in more technical discussions, solely to CPU utilization. The CPU (central processing unit) is the component in a computer that processes instructions from programs, ordering memory to be used a certain way, moving files from one place to the next and more.
Every function you perform consumes some CPU and its role is so central (hence the name) that it has come to be used as a synonym for the computer itself. People point to their case and say 'That is the CPU'. But, the computer actually has memory, disk drive(s) and several other features required in order to do its job.
Server load refers, in more general circumstances, to the amount of use of each of those other components in total.
Disk drives can be busy fetching files which they do in pieces, which are then assembled in memory and presented on the monitor, all controlled by instructions managed by the CPU.
Memory capacity is limited. It's often the case that not all programs can use as much as they need at the same time. Special operating system routines control who gets how much, when and for how long, sharing the total 'pool' among competing processes.
So, how 'loaded' the server is at any given time or over time is a matter of how heavily used any one, or all, of these components are.
Why should you care?
Because every web site owner will want to understand why a server becomes slow or unresponsive, and be able to optimize their use of it.
When you share a server with other sites, which is extremely common, the traffic other sites receive creates load on the server that can affect your site. There's a limited amount you can do to influence that situation. But if you're aware of it, you can request the company move you to a less heavily loaded server. Or, if the other site (which you generally have no visibility to) is misbehaving, it's possible to get them moved or banned.
But when you have a dedicated server, you have much more control over load issues. You can optimize your own site's HTML pages and programs, tune a database and carry out other activities that maximize throughput. Your users will see that as quicker page accesses and a more enjoyable user experience.
The Job Interview – How to Handle Getting Around a Negatively Asked Question Many dread that day that they have to go for an interview. Looking professionally dressed, acting professional and displaying the knowledge is all important. Employers and interviewers test you for anything and everything that you can think about--from your likes and dislikes to the actual experiences with this type of work to the facts. Most of these questions you can dodge and answer safely and securely. But how about those negatively asked questions, how could you professionally dodge those questions? Often times a reaction to a negative question is what can make or break the deal. Sometimes employers ask these questions on purpose to see what your reaction might be and to be able to determine first of all your character and second of all, if the negative event in your life is related to a good or bad character. So how can you master these questions and possibly pass the tests? One of the most important factors when getting prepared to dodge difficult questions is to be secure and knowledgeable about any points on your résumé and in your life. If you have a good answer prepared for difficult situations that happened in your life, it will be an ease for you to get around negatively asked questions. Whenever an interviewer asks you a negative question, make sure you stay calm and do not answer hastily. Sometimes it is enough to give a very short answer and it does not necessarily need a complete explanation that might get you stuck. The longer the answer you try to make up, the easier you might stumble over something and then fall hard. When trying to get around a negatively asked question, besides that fact that you need to stay calm and give a short answer, try to get to a different topic. Strike up a conversation about your more positive skills and accomplishments and therefore get around that question that might have bothered you otherwise. In some instances, depending on the content of the question, it might even be best to answer truthfully. What if you were asked about staying home for no obvious reason? At least according to your résumé there is no job, no new degree or similar mentioned. Maybe it was for a sick relative or the birth of a baby? Why not use the truth in these cases as an answer. When answering difficult questions you might have to decide often on the spot how to answer. In any case, it will almost never help you to make up a lie for a negatively asked question. A lie can get you into a situation you cannot get out of, but the truth can never get you in a worth situation than you are in by answering the questions truthfully. If you do not want to answer truthfully because you think it can hurt your image, sometimes it then is better not to answer the questions. Try to divert the attention successfully to another more positive topic such as your achievements, earlier project or similar other experiences that led to a positive result. Keep in mind that the interviewer is testing to see if you are a good fit for the company and they do not exactly know you. They know a few facts about you, but the do not know the whole picture and especially not about the more negative things they might want to find moiré information about. So when going for a an interview and trying to get around a negatively question, make sure to be honest or to not get into details if you do not want to discuss the issue, but mainly make sure that you stay calm, do not get excited about it. A calm confident person can easily answer any and all questions that might be posed to him or her. Online Writing Labs: You have One Available for You (online writing labs) There are numerous colleges and universities around the United States and the world that offer online writing labs. The labs are designed to offer help and instruction for any writing matter. Most Online writing labs are only available to the students of the offering college or university, but there are a few that are open to the general public. Virginia Tech has an online self help section and email help available for questions you have about grammar. The online writing labs are beneficial to both the writer in need of the help and the person helping them. The helper or tutors are usually graduate students working for their degree they benefit from the additional teaching practice. The students are getting proofreading, critiquing, and feedback along with any help they may need. The online writing labs were created by the schools to offer extra help to their students in their writing. They offer support in most areas of writing including choosing a topic, grammar help, revising a draft, and editing. They provide tutored help in these areas to students and faculty. Many online writing labs are set up to help you in three ways; online self help, email support, and one on one personal support. The online self help applications are available 24 hours a day. For the email support you email in your paper or project and you will receive a response with in 24 hours. The one on one personal support is a great way for students to learn how to do their own proofreading and editing. The tutors will help show the students what to look for and how to find their own mistakes. This is a great opportunity for help with someone other than a teacher. Even though the online help is available student are encouraged to use the writing lab tutors on a regular basis to improve their writing skills. Purdue University has an online writing lab they call OWL. It offers a wealth of information that virtually anyone can use. They offer a highly detailed step by step instruct of the writing process and huge section on professional, technical, and scientific writing. A section in job search writing that walks you through everything, from your academic coversheet to writing a personal statement, step by step. General Academic writing and research and citation help. This is the best site for offering its advice absolutely free. This site definitely deserves to be bookmarked on your computer if you are a serious writer, a student, a teacher, it really doesn’t matter. The University of Richmond has a program they call Writing Center. Although not as complex as Perdue’s they offer online self help topics for writers. Starting with the writing process to grammar and punctuation, it is another option for you. The University of Wisconsin has the Writing Center that offers some help with the basics. One thing to keep in mind that many of the universities and colleges that offer these many take them offline in between semesters and on breaks. If you are a student, many of you have an online writing lab available at your school or one that reciprocates with your school. Though the general public have self help online help available to them, chances are your school will offer some sort of one on one help to guide you through your work. Check it out it could be very beneficial to you. If you don’t have one available, it is highly recommend checking out OWL at Perdue or search the Internet. There are a lot of self-help online writing labs available to you. |