What is a hashing structure? What are the advantage(s) and disadvantage(s) associated with it?
A hashing structure employs an algorithm that converts the primary key of a record directly into a storage address. Hashing eliminates the need for a separate index. By calculating the address, rather than reading it from an index, records can be retrieved more quickly. The principal advantage of hashing is access speed. The hashing technique has two disadvantages. It does not use storage space efficiently. The storage location chosen for a record is a mathematical function of its primary key value. The algorithm will never select some disk locations because they do not correspond to legitimate key values. Different record keys may generate the same (or similar) residual, which translates to the same address. This is called a collision because two records cannot be stored at the same location.
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Which of the following is NOT an example of an in-kind promotion?
A) providing samples and gifts of products and services with sales literature B) providing posters of products or services for well-trafficked venues C) providing anonymous support to causes in the public's interest D) providing services or products as prizes for a charity for mention in promotional materials
Answer the following statement(s) true (T) or false (F)
1. Successful implementation is the central goal of every HRIS project, and it begins with a comprehensive design for the system. 2. The implementation process does not provide opportunities to reengineer and systematically improve nonsoftware processes to reflect best practices in HRM. 3. The analyst is referred to as a power user because this person accesses more areas of the HRIS than almost any other user. 4. HRIS experts ensure that appropriate HR staff have all the access, information, and tools necessary to do their jobs.
Panel interviews are typically conducted by people who will be your supervisors and colleagues. An important advantage of the panel interview is A) allowing the company to measure the candidate's leadership and communication skills
B) saving company money on repeated interviews and related costs. C) determining the best candidate through multiple interviews. D) testing the reactions of a candidate during nerve-racking situations.
Which of the following was not one of the reasons why the Interstate Commerce Commission was created by Congress?
a. There was frenzied railroad financing. b. Railroad rates discriminated among shippers. c. The transcontinental railroad needed completion. d. Cutthroat competition between eastern and western railroads affected profits.