relational
What exactly does learning management system mean?
Learning Management System
A learning management system (LMS) is a software system that provides that provides online training, educational content, and various critical tactics for integrating LMS into a system. SAAS, a type of web-based LMS, is a fast example of LMS.
E-learning management systems derive from e-learning courses delivered to employees over a company's intranet or network in accordance with recognized eLearning standards like AICC and SCORM. Since then, however, the nature and scope of LMS have changed dramatically. While the specific nature of a learning management system (LMS) varies depending on the needs of the business, today's successful LMS invariably supports seamless integration of the physical and virtual classrooms, encourages social learning, and fills important learning gaps. The finest learning management systems are scalable, portable, encourage gamification, and allow for seamless talent management across the organization.
Skill Lake is a cutting-edge learning platform that makes it easier for organizations to conduct training in accordance with their organizational objectives. Additionally, the ultimate beneficiaries of a learning platform are the learners, who are equipped with a progressive learning platform that provides both ease and improved knowledge accumulation, making them better employees and individuals.
Who is responsible for database security?
Each database can have a security administrator who is in charge of enforcing and maintaining the database security policy. If the database system is small, the database administrator may also have security administrator responsibilities.
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How can data from VLBI used in mapmaking today?
The Data from VLBI can be used for various vital data such as spreedsheets, information that can be used for today.
Which stanza best shows a leading approach as opposed to a leaping approach?
The trees still hold the rain
for hours after it ceases to fall.
He should consider purchasing the Application Protocol IDS (APIDS).
Which companies use databases?
A database is used for holding the data on users of websites or to hold a customers details. Some databases are very secure by using encryption (computer based scurity, one of which is called ssl) but some are less so.
In short, almost every shop, business, or website has a database.
Well this does not help by the way.
This is some.............
Asda to keep record of customers transaction
SCHOOLS to keep information about the students
hospitals use databases to keep informations about the patients
police stations use datebases to store information and criminal records about the prisoners
hope this helps
sort
reports
What tasks would a database administrator perform?
make sure protocols are in place and are being followed
How program instructions transfer in and out of memory?
The instructions have to remain in memory at all times while the program is running. They get there by loading the entire program into memory. The CPU's instruction registers keep track of the current instruction and the next instruction.
What are the advantages and disadvantages of table service?
ADVANTAGE-chance to sit down and relax with friends/family,food is served by nice staff in most cases and good choice of food from a menu
DISADVANTAGE-food may be cold when served,food may take long to come out and may take long to be seated
What types of information system might a large companies use?
DSS - Decision Support System
TPS - Transaction Processing System
ESS - Executive Support System
MIS - Management Information System
Most of the Organisations use DSS, ESS and MIS
File structures that remain after a file has been deleted
Data refers to things that can be counted.?
Data is data. Data can be generated, manipulated, sorted, misanalysed, counted, correlated, etc.
Data is a general term for information of various sorts. A hand written address (little black) book is data.
Yes data can be counted amongst other things.
How do information systems help organizations?
Information systems help an organization by providing important data. Executives can make decisions based on the data provided that will be more beneficial for the company.
What stores programs currently in use?
On embedded systems it is usually the program ROM.
On most other computers, the active portion is in RAM and if the operating system supports it inactive portions will be kept in virtual memory on the hard disk so that more of the RAM can be kept free for other programs to use.
If the computer includes cache memory, the most recently executed instructions remain in the instruction cache memory and the most frequently used data remain in the data cache memory.
False, the very first step is to clearly describe what the database is to be used for. Many databases are built on what the programmers want the DMS not what the users of the DMS want done
Classified data must be handled and stored properly based on classification and what else?
Classified data must be handled and stored properly based on classification markings and handling caveats.
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What is a relationship in databases?
A recursive relationship can be defined as A relationship that is expressed about multiple records within one table. As an example if we take an employee table then there are some employees who are supervisor and some who are being supervised. This is the relationship of Supervisor and supervisee is called a recursive relationship.
More concrete definition of Recursive relationship can be A relationship between information held in a field, group of fields, or complete record and information of the same type held in one or more other occurrences of that record, or part thereof.
What Four main types of actions involved in database?
A database management system is a collection of programs that enables users to create and maintain a database. The DBMS is general purpose software that facilitates the processes of Defining, Constructing, Manipulating and Sharing data among various users and applications.
Defining a database involves specifying the data type, structure, and constraints of the data to be stored in the database. The database definition or descriptive data information is also stored in the database in the form of a database catalog or dictionary; it is called meta-data.
Constructing the database is the process of storing the data on some storage medium that is controlled by the DBMS.
Manipulating a database includes functions such as querying the database to retrieve specific data, updating the database to reflect changes in the miniworld, and generating reports from the data.
Sharing a database allows multiple users and programs to access the database simultaneously.
Difference between chomsky normal form and greibach normal form?
1,In computer science, a formal grammar is said to be in Chomsky normal form if all of its production rules are of the form: where A, B and C are nonterminal symbols, α is a terminal symbol (a symbol that represents a constant value), S is the start symbol, and λ is the empty string. Also, neither B nor C may be the start symbol. Every grammar in Chomsky normal form is context-free, and conversely, every context-free grammar can be efficiently transformed into an equivalent one which is in Chomsky normal form. With the exception of the optional rule Sλ (included when the grammar may generate the empty string), all rules of a grammar in Chomsky normal form are expansive; thus, throughout the derivation of a string, each string of terminals and nonterminals is always either the same length or one element longer than the previous such string. The derivation of a string of length n is always exactly 2n − 1 steps long. Furthermore, since all rules deriving nonterminals transform one nonterminal to exactly two nonterminals, a parse tree based on a grammar in Chomsky normal form is a binary tree, and the height of this tree is limited to at most the length of the string. Because of these properties, many proofs in the field of languages and computability make use of the Chomsky normal form. These properties also yield various efficient algorithms based on grammars in Chomsky normal form; for example, the CYK algorithm that decides whether a given string can be generated by a given grammar uses the Chomsky normal form. The Chomsky normal form is named after Noam Chomsky, the US linguist who invented the Chomsky hierarchy. 2,In computer science, to say that a context-free grammar is in Greibach normal form (GNF) means that all production rules are of the form: where A is a nonterminal symbol, α is a terminal symbol, X is a (possibly empty) sequence of nonterminal symbols not including the start symbol, S is the start symbol, and λ is the null string. Observe that the grammar must be without left recursions. Every context-free grammar can be transformed into an equivalent grammar in Greibach normal form. (Some definitions do not consider the second form of rule to be permitted, in which case a context-free grammar that can generate the null string cannot be so transformed.) This can be used to prove that every context-free language can be accepted by a non-deterministic pushdown automaton. Given a grammar in GNF and a derivable string in the grammar with length n, any top-down parser will halt at depth n. Greibach normal form is named after Sheila Greibach.