Circuit analysis questions and answers jobs
I need help with resolving network issues I'm currently dealing with. I'm facing packet data problems in my current networking infrastructure and need a skilled professional to identify and fix this issue. Ideal skills for this job include: - Proficiency in network troubleshooting - Experience with packet data analysis - Familiarity with network security vulnerabilities - Knowledge of LAN, WAN, and VPN setups Please provide a proactive solution to these issues, as I'm looking for a comprehensive resolution to ensure smooth and secure network functioning.
Overview: Our company is a provider of IT and Managed Service Provider (MSP) solutions, committed to delivering top-tier services to our clients. We are seeking a dynamic and driven Outbound Sales Representative to join our team. This individual will be responsible for the entire sales lifecycle, from marketing and lead generation to proposal creation and deal closure. The ideal candidate will have excellent English communication skills and be comfortable working in the US Eastern Standard Time zone. Key Responsibilities: Marketing and Lead Generation: Develop and implement outbound sales strategies to attract potential clients. Utilize various marketing channels, including email campaigns, social media, and cold calling, to gener...
I am looking for an expert in Criminal law who can comprehensively write a legal brief covering the breach of sections 7,8 and 10 of the Canadian Charter of Rights and Freedoms. Key areas I want addressed in the brief includes: - Deep dive on Charter s7, 8 and 10 breaches - Analysis on the stay/exclusion of evidence - Incorporation of relevant case example, specifically r v evans. The ideal candidate should have invaluable experience in Canadian Criminal law with a robust understanding of the Charter of Rights and Freedoms.
...Requirements: - Proven experience in off-page SEO with a focus on backlink building. - Thorough understanding of different backlink acquisition methods. - Ability to work independently and suggest suitable strategies. - Excellent communication skills. We need the following work each month: 1. 100 Business/Local listings 2. 20 Image Submissions 3. 20 Directories Submissions 4. 05 Social Bookmarking (5 Websites * Number of URLs in Website) 5. 20 Classifieds 6. 20 Questions & Answers 7. 20 Video Submissions 8. 20 PDF Submissions 9. 20 Blog Promotions The above work is just for one project and we have around 5 projects. Terms and conditions: • Minimum 30 DA websites required • C Class IP Different • We will give you data of old websi...
...the cost of tuition, cost of living in the city / student accommodation where the university is situated, and how LGBT-friendly the region is. Sub-Headings: -University location and reputation -Details of fine art/art courses and if they can be taught in English. - Cost of Tuition & Living: Detail the tuition fee structure and estimate the cost of living in the cities where these universities are based. I wont be able to work so cost is an important factor - LGBT-friendly Environment: Include information on the social climate regarding LGBT issues and the level of acceptance and support available in these cities and universities. Ideal Skills: - Situated in India - Research & Analysis - Knowledge of the Indian universit...
I'm seeking a digital image forensic expert to assist in the detection of image tampering, analysis of image metadata, and identification of image forgery. Primarily, I work with JPEG and PNG file formats for my digital image forensics projects. Essential Skills and Experience: - Proficient in image tampering detection, metadata analysis, and forgery identification - Strong experience working with JPEG and PNG file formats - Skilled in both image analysis and forensic reporting It's preferable if you have experience handling both image analysis and forensic reporting but not strictly necessary. Your ability to deliver accurate and timely results is of utmost importance.
I require a seasoned data analyst with a proficient background in SPSS. The project involves: - Si...project involves: - Simple Linear Regression - Repeated Measures ANOVA - Chi-square Goodness of Fit The primary deliverable is a set of screenshots for each analysis. The screenshots should be at the level of a basic overview with final results. Your role will include setting up the data, performing the analyses on SPSS, and providing the screenshots. I will provide the data to you in an Excel spreadsheet. Ideal Skills and Experience: - Proficiency in SPSS - Extensive experience with statistical analysis - Strong background in Simple Linear Regression, Repeated Measures ANOVA, and Chi-square Goodness of Fit - Ability to provide clear and concise...
I'm seeking a talented SEO p...through effective on-page optimization. Key Responsibilities: - Conduct and implement comprehensive on-page optimization strategies for my Shopify website to boost its visibility and search engine ranking - Craft engaging and SEO-friendly product descriptions - Enhance product metadata to increase click-through rates and conversions Ideal Skills: - Proven track record in SEO optimization, particularly with Shopify websites - Expertise in on-page optimization techniques and tools - Proficiency in keyword research and analysis - Strong understanding of e-commerce SEO - Excellent communication skills I'm looking for someone with a proactive approach and the ability to deliver results. Please p...
I'm looking to build a comprehensive search and listing portal focused on software and tools. The portal will be a one-stop platform for users, offering a spectrum of services and solutions. Key Features: - User Registration: A simple, intuitive user registration process is crucial for onboarding new users and keeping them engaged. - Advanced Search Filters: Providing users with robust search filters will enhance their experience and help them find what they need quickly. - Reviews and Ratings: Implementing a review and rating system will add credibility to the platform while aiding users in making informed decisions. - Product Comparison Feature: Enabling users to compare different software and tools will add value and ...
...Divergence, RSI Overbought/Oversold, and EMA indicators. This strategy will be designed for a 15-minute time frame. Key Requirements: - The strategy must have a Profit Factor exceeding 10, demonstrating its effectiveness in generating profits relative to losses. - It should maintain a high percentage of profitable trades, ideally exceeding 80%. - Risk management is crucial, so the strategy should include features such as Stop Loss, Take Profit, and Trailing Stop. Ideal candidates would be highly experienced in developing Pine Script strategies, with a proven track record of creating successful trading algorithms. Strong understanding of technical analysis, especially the indicators mentioned, is a must. Your deliverable will be a well-documented, efficient, ...
...a background in finance to craft a comprehensive, long-form quantitative research project. The topics the project should cover are Investment analysis, Risk management, and ESG Integration with Technical analysis of stocks. The data analysis section should be particularly robust, with an advanced level of detail including complex statistical or mathematical models. Ideal skills and experience for this job include: - A solid understanding of finance with a specialization in investment analysis, risk management, and ESG integration - Proven experience in writing long-form, quantitative research projects - Ability to conduct in-depth data analysis using complex statistical or mathematical models - Excellent writing skills with a k...
I'm s...troubleshoot potential Networking and application errors. Key Responsibilities: - Analyze Application logs, System logs, and help in resolving Networking issues. - Identify and troubleshoot application errors within the log files - Provide a detailed analysis report with recommendations for resolution The ideal freelancer for this project should: - Have considerable experience in Windows Server log file analysis - Be adept at troubleshooting application issues - Demonstrate a proven track record of similar work in the past - Be able to provide clear and concise reports - Strong understanding of Windows Server 2008 R2 Your application should clearly outline your experience in this area. Please note that only applicants with demonstr...
I need a python developer to fix some Jupyter notebooks that present time series data with a variety of analytic studies like correlation, time series analysis report and others. Probably 20 hourss work. More if yoiu know 'R'. Must have experience of time series data AND be familiar with pandas, statsmodels, matplotlib, pyplot and pylab. I have a sample notebook that returns the data in a Pandas dataframe. Must work on European/UK time and be available on WhatsApp or Skype when working. It is not a complex job. The successful bidder will needs to pass a simple knowledge test Experience in 'R' and Binder would be nice. If you have relevant work in your portfolio please tell me about it.
...political communications agency based in London, specialising in public affairs, policy analysis, media relations, and crises communications. We also organise events on behalf of European trade bodies including an annual awards ceremony for a leading sports nutrient association which takes place in London. We are looking for an experienced Event Organiser to provide essential administrative and logistical support for the team in the UK and EU either on a freelance or fixed term contract to deliver an awards ceremony in London in December 2024. You will need a positive, can-do attitude, and be able to flex your approach and make decisions at speed when required. You will perform well under pressure and possess great attention to de...
...shopping centre. This will include comprehensive data from key social media channels, the website, in-person events, and occupier information. - The report should encompass data from major social media channels such as Facebook, Instagram, Twitter, LinkedIn and Tik-Tok, as well as any other relevant channels identified. - In terms of the website, the report should cover website traffic statistics, user demographic data, CTA page information, and page index. The report should be informative, visually appealing, and easy to understand. Ideal skills and experience for this project include: - Proficiency in data analysis and interpretation, particularly in the context of social media and website metrics. - Experience in creatin...
...APPLY: - Freelancers with an extensive and proven track record in significantly enhancing an online presence for service-based businesses. - Candidates with a sharp acumen of the digital landscape and capable of efficiently targeting potential local customers. - Experiences in successful local lead generation will be highly preferred. - A deep understanding of the trends, customer behaviours and preferences within the service sectors will be a plus. EXPECTATIONS: - Solid strategies aimed at boosting our digital presence - Generate at least a certain percentage of leads from these strategic implementations - Regular performance reports and analysis. The focus here isn't only to expand our online visibility among local customers, but to also e...
I will explain to you how Cost-Benefit Analysis (CBA) or Benefit-Cost Analysis (BCA) works in risk management and analysis. This would be based on the case study and course content that you have shared.
I have a set of handwritten letters that I need typed into a Word document for data analysis purposes. Key Requirements: - Expertise in data typing, particularly with handwritten content - Proficiency in handling and converting data for analysis - Ability to ensure accuracy and efficiency in the typing process The ideal candidate would have prior experience working with handwritten data and must have a keen eye for detail to ensure that the typed content matches the original content from the letters.
15x48x6, with 6 m between columns, snow load of 1 kn and wind 0.5 kn. Shed will design according euro code.
...help me gather insights on the current market sentiment within the food and logistics sectors in Russia. The core tasks involve: - Conducting 4 in-depth, 20-minute interviews with nominated trade organizations. - Focusing on extracting valuable information about current market trends. Ideal candidates for this role should have: - Proficiency in both Russian and English. - Proven experience in market research. - Strong interviewing and information extraction skills. - A keen eye for understanding and interpreting market trends. -Confidently reach out and make the interview appointments Your work will be pivotal to my understanding of the current market landscape, so I'm looking for someone who can deliver high quality and actionable insig...
...focus on conflicts and analysis. This project specifically involves intense research and analysis on current geopolitical conflicts. The ultimate goal is to translate these findings into a detailed video analysis. Key Requirements: - Specialization in Geopolitics: A deep understanding and knowledge of various geopolitical conflicts and analysis. - Research and Analysis Skills: Ability to conduct thorough research and in-depth analysis on current geopolitical conflicts. - Video Production: Experience with creating engaging video content and translating complex analyses into easily digestible video formats. - Communication: Strong communication skills are crucial for presenting the findings in a cl...
I'm in need of a brand deck that will primarily serve for brand awareness. I'd...in need of a brand deck that will primarily serve for brand awareness. I'd like the design to be modern and minimalistic to keep things simple yet engaging. The brand deck should reflect our brand values and story, and present product information in a clear and concise manner. This is an important tool to reach out to potential clients and create a lasting impression. Ideal Freelancer: - Proficient in creating brand decks - Strong design skills, particularly in modern and minimalistic style - Experience in brand awareness projects - Excellent at presenting brand values and story in a visual way - Ability to communicate product information clearl...
Hi everyone and thank you for considering my project. This project is a very unique one because the website I need a highly skilled digital marketer to promote is one which sells an eBook on sexual instruction. Therefore, it cannot be advertised on many platforms and this includes Google AdWords. Basically, I need it to be powerfully built up organically on Google. The eBook itself is one that offers advice for adults (anywhere in the world) who are sexually attracted to children to deal with their sexual attraction, so it does not ruin their live nor the lives of innocent children. The eBook is very informative and based on years of research. It has been published on Amazon since 2013 and has sold a number of copies there. All its feedback is positive as well....
I'm looking for a skilled programmer with robust knowledge of Scala, Hive and Spark to work on a data-related project. Key Points: - The project focuses on coding - The primary tools involved are Scala, Spark, Hive - No specific area of computer science is listed, just the programming languages Ideal candidate should be proficient in: - Scala, Spark, Hive - Data analysis and processing - Building scalable applications Previous experience in these areas would be a big plus.
I'm looking for an expert who can help me with a specific problem. I need to calculate the change in volume after and before a broaching process. The object in question is made of metal. Accuracy is key in this calculation, so the precision of the final volume measurement is extremely crucial to this project's success. Key requirements include: - Proficiency in Ansys software for volume change analysis - Experience in working with metal materials for simulations - An understanding of the precision required for volume measurement in this context The ideal freelancer for this project would have a proven track record of similar projects, excellent Ansys skills, and good communication abilities.
...businesses, government employees, and foreign entities, with questions about governmental procedures, laws, regulations, and more. Leveraging the latest advances in Large Language Models (LLMs), the system interprets and generates answers to user inquiries conversationally. Allama aims to provide accurate and up-to-date information, helping users navigate government processes more efficiently. Task Overview: We need a creative freelancer to produce a 60-second social media ad for Allama's launch. The ad will be used on Facebook, Instagram, Twitter, and LinkedIn to raise awareness and engage users. Responsibilities: - Create a 60-second video ad highlighting Allama's features and benefits. - Develop a storyboard...
...currently unable to send and receive emails using my Outlook client. - Access: I primarily use email client software like Outlook for handling my emails. We are seeking a skilled IT professional to help resolve email configuration issues within our organization. Our company, has recently faced challenges with our email services, including DNS propagation delays and issues with receiving emails. We need an expert who can quickly diagnose and resolve these problems to ensure smooth and reliable email communication. Responsibilities: Verify and correct DNS records (CNAME, SRV, MX, TXT) for our domain. Ensure proper email configuration and propagation. Diagnose and resolve issues related to email delivery and reception. Perform mes...
...range. It must be software defined and provide active digital support for it and peripherals. The output power, frequency & all other parameters should be software adjustable & saving of last data. Default factory settings set option. Applicable ISO standards like EPC global UHF RFID Class 1 Gen2/ISO 18000-63/6C. Full LLRP support. USA FCC Part 15 compliance is needed. ERP, EIRP power output compliance to international standards is needed. This may be always-on at times for wide area monitoring of RFID tags precise locations, per requirements given here. Should support OTA updates, embedded web server(testing, configuring & diagnostics). Remote diagnostics & config loads/uploads. If some 3rd party tools are used at runtime, our pre-approval, source codes ...
I'm seeking a skilled ele...business facilities. Our predominant energy consumption is due to lighting and heating systems. The successful candidate will: - Review our current electrical consumption across four venues - Identify areas of high consumption - Formulate appropriate strategies and actions to minimize energy usage Knowledge and experience in voltage regulation, phase balancing and energy efficiency best practices are highly essential for this project. Proactive suggestions such as implementing alternative energy-saving devices or technological solutions are welcomed. The ultimate goal is to significantly reduce our energy spend while maintaining operational efficiency. Please bring your expertise to this task and help us achieve a gree...
...manage my accounting tasks. Key Responsibilities: - Invoicing and Billing: Generate professional invoices and ensure timely payments from clients. - Expense Tracking and Management: Keep a detailed record of all expenses, categorize them correctly, and manage the reimbursement process. - Financial Reporting and Analysis: Prepare monthly financial reports, analyze the data, and provide insights to help me make informed decisions for the business. Ideal Candidate: - Proficient in Zoho Books with a track record of managing accounting tasks for small businesses. - Excellent attention to detail and ability to generate accurate reports. - Good communication skills and ability to provide financial insights. This is an ongoing p...
...possible results within this range. Key Skills and Experience Required: - **Google Ads Expertise**: Proficiency in Google Ads, particularly in lead generation campaigns, is a must. - **National Audience Targeting**: Experience in creating and managing campaigns targeting a national audience, understanding their needs, and driving engagement. - **Budget Optimization**: Ability to make the most out of a limited budget, ensuring a balance between cost-efficiency and results. - **Performance Tracking**: Knowledge of tracking tools and data analysis to evaluate the success of the campaign and make data-driven decisions for improvements. - **Communication**: Clear and open communication is key. The freelancer should be able to provide ...
... ) - Provide troubleshooting assistance - Process customer orders - Ability to provide live data on orders, delivery status, and any other relevant customer queries (not pre-recorded information). The AI must check what's the latest shipping status of the order and answers the customer directly. The chatbot will be integrated with our Shopify store so it can provide specific order information. It's important to note that we're looking for a voice-based chatbot (not chat) Ideal skills and experience: - Proficiency in GPT 4o - Experience in creating AI voice chatbots or similar projects - Strong understanding of customer care processes - Familiarity with Shopify and its integration capabilities IMPORTANT - LISTEN TO THE DEMOS: I want t...
I am seeking a skilled researcher with expertise in social psychology and a strong background in data analysis to bring new insights from the experimental data sets I will provide. Key tasks involved: - Analysis of existing experimental data related to social psychology. - Extracting meaningful insights and patterns from the data. - Presenting findings in a clear, concise, and actionable format. The ideal freelancer will have: - Proven experience in social psychology and market research - Proficient in using data analysis tools - Excellent analytical and problem-solving skills.' I am completing my honours thesis in psychology. My study is looking at mindfulness-based art therapy, including a 2-hour intervention where...
I'm in need of a statistician, preferably with a background in HR or business analysis, to interpret and explain the quantitative data from our change management survey results. The focus of this project is on understanding how shifts in our management techniques create an impact on our employees' engagement level. Specifically, your role would entail: - Analyzing the data to identify trends and patterns - Creating clear, comprehensive tables and graphs to present your findings - Offering insightful explanations of what the data signifies Ideal skills and experience include: - A background in statistics, HR, or business analysis - Experience working with survey data - Ability to understand and explain complex data in a simple, un...
I'm in need of a skilled statistician, or someone with similar experience, to assist with my online survey data analysis project. Your primary task will be to perform data splitting, followed by some detailed statistical analysis. The project's purpose is to leverage the insights generated from this analysis to guide key business decisions. The data in question are gathered from online surveys, and are quite vast. You must have: - Proven experience in data analysis. - Proficient in statistical analysis. - An understanding of online survey formats. - Excellent attention to detail. Understanding the nuances of online survey data and presenting complex insights in an easy-to-understand format will be your key tasks in this project...
...developer proficient in Flutter and Laravel to provide support to my team for various tasks related to the ongoing development of my mobile application. Key Requirements: - Proficient in both Flutter (for front-end) and Laravel (for back-end). - Experience with user authentication mechanisms and user account management in mobile applications. - Capable of developing and implementing a content management system (CMS) into the application. - Familiarity with social media integrations. - Skilled in incorporating analytical tools for monitoring and improving content performance. The main features of this app include: - User Login System: A seamless and secure user authentication process is crucial for our app's success. - Content Management: ...
I'm seeking a proficient and experienced SAP PAPM expert to assist in training me on the platform. Key Training Areas: - Focused training sessions on PAPM functionality are needed, with a particular emphasis on cost allocation models and profitability analysis. - Practical guidance on data management and integration within SAP PAPM is essential. What I Need: - A professional who has a deep understanding of SAP PAPM and can effectively communicate complex concepts. - Someone who has experience in developing training materials is preferred, considering that I currently do not possess any training materials for SAP PAPM. Ideal Candidate: - Advanced proficiency in SAP PAPM is mandatory. - Previous experience in training others on PAPM, or a related S...
...help me design and build a golf classifieds website. Here's an overview of what I'm looking for: Main Features: - User Registration and Login: Visitors should have the ability to create an account and log in to access the site's features. - Classified Ads Listing: An organized, user-friendly way for users to list and view golf-related items they want to sell. - Search and Filter Options: A search bar and filter system to help users find specific items or categories easily. User Interaction with Ads: - Contact Seller Directly: Users should be able to reach out to the seller of an item they're interested in. - Make Offers on Ads: The website should allow for potential buyers to make offers on items. - Leave Comments on Ads: A...
...help, and the ideal candidate must be able to work quickly. Key Areas of Support Needed: - Understanding Product Lifecycle: I require a comprehensive explanation of the entire product lifecycle, from ideation to end-of-life. - Developing Product Strategy: Assistance in crafting a compelling and strategic product vision and roadmap will be crucial. - Mock Interviews and Feedback: I need to practice typical product management interview questions and receive detailed, constructive feedback on my responses. It is important that the freelancer has: - Strong knowledge and experience in product management, ideally in the software development industry. - Previous experience in preparing candidates for product management interviews. - Excellent ...
I am looking for a professional with t...multimedia, as I have not stated a preference. However, I need it presented in CSV format for my review and analysis. Key duties include: - Assuring the secure and rapid downloading of data files. - Properly formatting the data into CSV files for easy accessibility and comprehension. The ideal freelancer for this job should possess: - Strong knowledge of data management. - Proficient skills in handling various data types. - Expertise in CSV formatting. - Exceptional skills in file download mechanisms and data security. This task requires a detail-oriented person who can accomplish tasks accurately and in a timely manner. It would be perfect if you are familiar with multiple data types and can ha...
I require an in-depth, well-informed essay focusing on the early 20th century, exploring the long-term causes of ...require an in-depth, well-informed essay focusing on the early 20th century, exploring the long-term causes of World War I. The essay should spotlight and examine the four main causes listed below - Alliance Systems: Investigate the political intricacies and implications of the alliances formed. - Imperialism: Evaluate how this drove nations to conflict. - Nationalism: How did it cause tension and contribute to the onset of the war? - Militarism: Discuss the arms race and its impact. Ideal skills: - Historians or history students with extensive knowledge of World War I - Excellent researching and essay writing skills - Able to precisely an...
...candidate will possess real world experience in orchestrating beta testing phases and gathering comprehensive user feedback for POC products. (It's 1 x physical item and not digital) Responsibilities: Develop and implement a robust testing plan tailored to the unique characteristics of our physical POC product. Design and administer user-friendly surveys or questionnaires for testing sessions, ensuring ease of use and clarity of feedback. Teach me about in-person testing sessions with participants, guiding me through product interactions and collecting detailed feedback on usability, functionality, and overall experience. Utilise observational techniques and qualitative analysis methods to identify pain points a...
...their full potential? We are seeking a highly skilled and experienced Business Consultant to join our team. The ideal candidate will have a strong background in business strategy, process improvement, and project management. Key Responsibilities: • Conduct thorough business analysis to identify opportunities for improvement. • Develop and implement strategic plans and initiatives to achieve our goals. • Provide expert advice on business process optimization and efficiency improvements. • Collaborate with cross-functional teams to ensure alignment and effective execution of business strategies. • Prepare detailed reports and presentations to communicate findings and recommendations to clients. •...
...for my website: increasing organic traffic and improving search engine rankings. Key Responsibilities: - Conduct a full SEO audit of my website - Develop a comprehensive SEO strategy that aligns with my goals - Implement on-page and off-page optimization techniques - Monitor and report on key performance metrics Ideal Candidate: - Proven track record of successfully increasing organic traffic and improving search engine rankings - Strong understanding of Google search algorithms and best practices - Experience with conducting SEO audits and implementing SEO strategies - Excellent communication skills and ability to provide regular progress updates - Expertise in data analysis and reporting Please only apply if you have a ...
I'm in need of an expert in quantitative data analysis, ideally with experience in academic research, to add discussion to interviews themes which is already generated by Nvivo program Your responsibilities will include: - add discussion to the interviews themes - discuss each theme with making argument by adding participants citation about each them - modify findings chapter accordingly if needed - modify conclusion chapter if needed Skills and experience needed: - Proficient in quantitative data analysis - Experiences in academic research - Detail-oriented and accurate in data interpretation - Converting raw data into understandable conclusion - Expert in interpretation quantitative data - familiar with Nvivo interpretation
Looking for an ...understanding with the system, and we require thorough training on specific areas. Key Features to focus on: - Log Analysis and Investigation - Threat Detection and Response - Customization and Configuration The ideal freelancer should have extensive experience in teaching or delivering training sessions, as well as deep knowledge and proficiency with Chronicle SIEM. He/she should be able to tailor lessons to beginner levels and progressively increase complexity to ensure comprehensive understanding among participants. Your competency will guide this team from being novices to becoming competent users of Chronicle SIEM. Excellent communication skills are crucial for this engagement, as is patience to ensure all p...
...counter API for the purpose of tracking website visitors. Key responsibilities: - Designing and developing an incremental counter API compatible with my existing system - Ensuring the API is lightweight, efficient and able to handle high visitor volumes - Test and debug the API to ensure its robustness and reliability. The ideal candidate will have: - Solid understanding and hands-on experience with JavaScript - Strong experience with API development and integration - Knowledge of website traffic tracking methodologies would be preferable. The objective here is not only to count the visitor numbers, but to ensure it provides reliable data that can be valuable for business scaling and analysis. I'm looking forward to co...
I am looking for individuals based in Saudi Arabia or UAE who can assist me in downloading and verifying social media apps. Key Responsibilities: - Downloading and verifying the functionality of the apps. - Analyzing the user engagement and features of the apps. - Providing an overview report of the features and general engagement of the apps. Requirements: - Reside in Saudi Arabia or UAE. - Proficient in navigating social media apps. - Able to provide a general analysis of app features and user engagement. - Must be online most of the times.
