How would you transfer data between your data structures and databases?

Assistance with some IT based multiple choice questions please?

• Hi, I've been set an IT tutorial full of multiple choice questions and out of the many I've managed to do there are a few ambiguous and tricky question that I'm deliberating upon so I was wondering whether anybody would quickly look over and suggest answers to these questions for me Discovering and extracting hidden predictive information from large databases is called ______. a. searching b. finding c. data retrieving d. data mining e. data discovery Which of the following telecommunications services and technologies is dependent on the Internet? a. fax machines b. e-mail c. voice mail d. video teleconferencing e. ATMs Sell-side e-commerce is: a. An organisation using electronic media to purchase from to its suppliers b. An organisation using electronic media to sell direct to its customers c. The use of electronic communications for all business processes d. Any electronically mediated communication between between an organisation and its stakeholders e. None of the above The URL contains all of the following EXCEPT the a. protocol that must be used to access information b. domain name c. directory d. name of the resource e. user name To conduct a search using a search engine a. type a query using keywords b. construct complex queries using Boolean logic c. narrow the search using a directory or subject tree d. if it is a natural language search engine, ask for what you want e. all of the above are true Encryption a. is a form of transmission control b. involves scrambling data into a coded form before transmission and decoding it upon arrival c. involves the use of account numbers and passwords to control access to a network d. involves the use of parity checking to control errors in transmission e. is another term for file transfer Which one of the following is an aid to organising and identifying data? a. Tabs b. Words c. Lines d. Direct access e. Keys Transaction processing systems a. capture data describing business transactions b. process data from business transactions c. update an organisation’s operational files and databases d. produce a variety of information products for internal and external use e. all of the above Which of the following is an exception report? a. a weekly sales analysis report b. a listing of sales staff whose sales are less than 75% of their quota c. a listing of sales for the month for a specified region d. a report generated by a manager using a database management system query language e. all of the above Executive information systems a. provide information about the current status and projected trends in a company’s critical success factors b. provide modelling capabilities to evaluate alternatives for decision support c. require real-time access to internal and external databases d. present information in a format tailored to the preferences of the executives using them e. all of the above When in-house IS/IT expertise is high and the degree of uniqueness of the business to be supported is high, the most appropriate method of acquiring applications software is: a. purchase of a standard off the shelf package b. development of software by a software house c. development of bespoke software by the in-house team d. having a package tailored to the needs of the business e. A and D Which of the following systems development activities would you not expect to undertake in a standard off the shelf package is being purchased? a. Program writing b. Data Conversion c. Conducting a feasibility study d. Constructing a list of desirable design features e. Detailed analysis of user requirements Dataflow diagrams are helpful because they allow a. physical databases to be designed b. systems specifications to be longer c. end users to ignore IT staff they don't like d. analysts to communicate their findings with end users more effectively e. IT professionals to erect barriers between themselves and other business personnel Entity modelling can be used to show the relationships between a. datastores and processes b. processes and sinks c. datastores and data flows d. a. and b. e. none of the above Regards, Glen

• Answer:

  Some questions are just a matter of knowledge or logic thought, but there are a few interesting questions that I'll help you answer: The url element question: look at a url. Take a random url, say, http://en.wikipedia.org/wiki/Yahoo! What do you see? Do you see a protocol? Do you see a domain name? Do you see a user name? Think about the way file paths are written in Un*x. A file called foo in my home directory would have the path /home/menno/foo. Does this structure remind you of something? The search engine question. This is a matter of knowledge. Wolfram research has built a natural language search engine called wolfram alpha, which you can ask questions like "How many people live in New York" and it will answer something like 8.175 million. (technically speaking it's a combination of an internal database search engine and a computational knowledge engine) Most library catalogs will let you search with boolean expressions and fora usually let you narrow the search with a subject or directory tree. I think you know that you can search with keywords. The data organization question is quite ambiguous, but I would go for keys, because database keys are the most applicable to the situation. The rest of the questions can be answered using Wikipedia, a dictionary, Yahoo (or one of its competitors) and by rereading the tutorial. PS. Where did you find this tutorial?