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What is not a problem associated with poor data management? a. essential data missing from the database b. inability to locate data c. system down time d. inconsistencies in representations e. redundant data What is a system level data administrator not likely to be responsible for? a. overall policies b. monitoring database use c. specifying an information architecture for the organization d. non-electronic corporate data What is not part of the database development life cycle? a. Project planning b. Requirements c. Definition d. Database testing e. Operations When monitoring the performance of a database and its access patterns one would not look at: a. type of transactions being processed b. response time c. robustness of data dictionary d. number of disk accesses e. they would look at all of the above Poor data management can result in: a. inaccurate data b. breaches of security c. data loss d. duplication of data e. all of the above A data dictionary is used to: a. access external databases b. as a journaling facility c. to track all database and their components d. to resolve deadlocks e. check the spelling of data as they are entered A system level data administrator would be involved in: a. optimizing databases for different environments b. creating data access tables c. monitoring a department's database use d. formulating a data strategy e. creating linked lists When considering various database software, the prime issue one might consider would be a. how much training on the system costs b. how often it needs to be backed up c. how many users will access the database simultaneously d. how often passwords can be changed e. whether it supports nested queries If your data model only has two entities, how many times can you relate the two entities a. 1 b. 3 (1:1, 1:m, m:m) c. 4 (1:1, 1:m, m:1, m:m) d. as many as is appropriate e. 6 (1:1, 1:m, m:m and reflexive variations of each) When defining a table using the create statement when would you use not null? a. on all foreign keys b. when a value is stored in the first column of a table c. when you want data entered into the particular column for each row in the table d. when a value might not be appropriate e. for all associative entity mappings
how many times will the job be interrupted and on which queue will it finish its execution?
Explain reasons for consulting different kinds of sources on the same subject.
What kinds of support and tools are available with Visual Basic? Sum-up your research, and make sure to reply to each of the questions.
You are the engineer involved in development of financial system. Should you simply abandon work until procuring organization has sorted out problem?
You are a computer forensics investigator for a law firm. The firm acquired a new client, a young woman who was fired. What is chain of custody and why must it be followed in investigations?
If firms in an oligopolstic industry successfully collude and form a cartel, what price and output will result? Price lower than the competitive price and because there are only a few firms in the industry, less output than the competitive amount
What is the probability of occurrence of each of the four pairs in original sequence? Illustrate your work. What is the probability of occurrence of 0 and 1 in modified sequence?
A major difference between a conventional decision support system and an ES is that the former can explain a "how" question whereas the latter can also explain a "why" question.
What you believe the eventually influence will be of concept of "pervasive computing" or"location based services" will be on society.
What is the infinite union of all context-sensitive languages? Decidable languages? What is the infinite intersection of all context-sensitive languages? Decidable languages?
Your boss has just heard about some nefarious computer activities called ping sweeps and port scans. He wants to know more about them and what the impact of these activities might be on your company.
New materials frequently lead to new technologies that change society. Describe how silicon-based semiconductors revolutionized computing.
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