RAID 1 –Mirrored set- Creates an exact copy of data on two or more disks c. RAID 5 –Striped set- Parity uses blocked level striping with parity data distributed across all disks in the RAID array. d. RAID 6 –Blocked striped-uses dual parity, crates 2 parity blocks for each data block, handles two disk failures. 4. Why is RAID 0 of any use if it offers no redundancy? RAID 0 gives more storage capacity in that data is spread across multiple.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A good definition for a database is: 1) _______ A) A text file with values delimited by commas B) A collection of related data C) A card catalogue D) A piece of software for managing databases 2) Redundancy refers to what database condition? 2) _______ A) All data is stored in tables B) You have more than one database devoted to the same thing C) The same data is recorded in more than one place in the same database D) A primary key is repeated in another table as a foreign key 3) Which best defines the function of a primary key? 3) _______ A) It uniquely identifies each record B) It is always a number C) It unlocks the data in a table D) It is the first field in a table 4) What best describes the function of a foreign key?
Because when you plug the binary numbers into the 8 bit conversion table, the two zeros before the 10 equal nothing. So 10 and 0010 have the same decimal number. 128 64 32 16 8 4 2 1 128 64 32 16 8 4 2 1 1 0 = 2 0 0 1 0 = 2 3. Based on the breakdown of the binary and decimal systems in this lab, describe the available digit values and the first four digits of a base 5 numbering system. You can use the binary system as a reference, where the available digit values are 0 and 1 and the first four digits are 1, 2, 4, and 8.
(Choose three answers.)A. keeps data in order, B. provides a convenient way to make, C. names give users an easy way to reference the data 10. How does your classmate’s computer know what is on the flashdrive?A. reading the files system’s directory information, stored to device 11. Which of the following answers best describes how a hard disk drive physically writes a binary 0 or 1?C.
NET-543 Chapter 1 True/False Indicate whether the statement is true or false. ____ 1. Windows Server 2008 computers can NOT perform multiple roles at the same time. ____ 2. Unlike virtual private network (VPN) or direct dial-up connections, a Terminal Services connection uses relatively little network bandwidth because the applications are running on the server computer.
Given a situation containing entities, business rules, and data requirements, create the conceptual model of the database using a database modeling tool. 3. Given an existing relational database schema, evaluate and alter the database design for efficiency. 4. Given an existing database structure demonstrating efficiency and integrity, design the physical tables.
a) independent variables, dependent variables. 68. Scientific thinking is important to organizational behavior researchers and scholars for all of the following reasons EXCEPT: e) the process of data collection is discretionary. 69. Which of the following is NOT an important research question addressing applications within the field of organizational behavior?
12) User access refers to what objects and data in a database a user has permissions to use. 13) Update permission is the permission to make changes to the database. 14) Delete permission is the permission to remove records from database tables. 15) A business rule is a rule that covers how data are acquired, stored or processed. 16) User access refers to what objects and data in a database a user has permissions to use.
RAND’s publications do not necessarily reflect the opinions of its research clients and sponsors. is a registered trademark. - iii - PREFACE This paper is the final report of the RAND Internal Research and Development (IR&D) project “Risk Management and Risk Analysis for Complex Projects: Developing a Research Agenda.” The aim of the project was to survey how quantitative risk management and risk analysis methods were applied to the planning and execution of complex projects, particularly those which planned to utilize new and untried technologies. One recent RAND study indicated that such methods, while widely advocated, were not used to plan and manage a critical government satellite development project. This paper recommends several research areas in which RAND could contribute to evaluating the utility of these methods and improving their applicability.
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