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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
Hidden implementations are often said to exist in a black box. Do you agree with this statement? Why or why not? Identify the advantages and disadvantages of using this approach in both programming and real life?
Briefly describe the major components of a datawarehouse architecture. Explain how the volatility of a datawarehouse is different from the volatility of a database for an operational information system. Please cite sources if any used.
Given a "Complex" class with all the standard methods for complex numbers, design the static method below to find and return the smallest complex number.
Please provide an example of where and how BNF might be used to solve real-world problems (by this I mean problems outside the languages and compiling domain). Please be specific and provide an example.
Suppose you are creating a hashing function to use for storing string data in hashtable. One Candidate hasing function would be to sum the ASCII or Unicode values for each character, and that result as the hashcode.
Design a program that keeps track of ticket sales for an auditorium. A concert will be performed over three days in an auditorium with three levels of seating floor, balcony, and upper balcony. There are 20 seats for each type of seating. Write a pro..
You can resolve this issue by wiring but you do not want to do that. What can you do to resolve this problem within wireless technology?
You are a bank manager and you are helping a new bank teller understand the kind of accounts the bank offers. If a customer comes in asking to open a new savings account, the teller needs to ask what kind of account-passbook savings or certificate..
Construct a 3-bit counter using three D flip-flops and a selection of logic gates. The inputs should consist of a signal that resets the counter to 0, called reset
Write down the maximum and minimum rotational latency of this disk? Determine the average rotational latency of this disk?
Activities of business modeling discipline study the information needs of user, the ways in which those requirements are being.
What strategic advantage can Continental derive from the real-time system as opposed to a traditional information system?
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