Database Administrator (DBA) managerial roles: The managerial roles are mainly focused on individual management and on communication with end users. The role of a manager is managing and planning the database administration. Policies, procedures, and standards enforcement: A successful data administration strategy needs the constant implementation of policies, procedures, and standards for exact data creation, practice, and delivery inside the database. The followings are enforced before DBA define, document, and communicate. Policies - The policies are common statements of direction or action which interact and support the aim of DBA. Standards - The standards define the minimum needs for given activity of DBA; they are more comprehensive and specific comparison for policies. Procedures - Procedures are written commands which defines a sequence of steps that can be followed throughout the given activity performance.

Question

[5 marks] Give a recursive definition for the language anb2n where n = 1, 2, 3, ... over the alphabet Ó={a, b}. 2) [12 marks] Consider the following languages over the alphabet ={a ,b}, (i) The language of all words that begin and end an a (ii) The language where every a in a word is immediately followed by at least one b. (a) Express each as a Regular Expression (b) Draw an FA for each language (c) For Language (i), draw a TG using at most 3 states (d) For Language (ii), construct a CFG.

Answer 1

Question

Chapter 16, Problem 21RQ

Program Plan Intro

Database Administrator (DBA) managerial roles:

The managerial roles are mainly focused on individual management and on communication with end users. The role of a manager is managing and planning the database administration.

Policies, procedures, and standards enforcement:

A successful data administration strategy needs the constant implementation of policies, procedures, and standards for exact data creation, practice, and delivery inside the database.

The followings are enforced before DBA define, document, and communicate.

Policies - The policies are common statements of direction or action which interact and support the aim of DBA.

Standards - The standards define the minimum needs for given activity of DBA; they are more comprehensive and specific comparison for policies.

Procedures - Procedures are written commands which defines a sequence of steps that can be followed throughout the given activity performance.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

[5 marks] Give a recursive definition for the language anb2n where n = 1, 2, 3, ... over the alphabet Ó={a, b}. 2) [12 marks] Consider the following languages over the alphabet ={a ,b}, (i) The language of all words that begin and end an a (ii) The language where every a in a word is immediately followed by at least one b. (a) Express each as a Regular Expression (b) Draw an FA for each language (c) For Language (i), draw a TG using at most 3 states (d) For Language (ii), construct a CFG.

Question 1 Generate a random sample of standard lognormal data (rlnorm()) for sample size n = 100. Construct histogram estimates of density for this sample using Sturges’ Rule, Scott’s Normal Reference Rule, and the FD Rule. Question 2 Construct a frequency polygon density estimate for the sample in Question 1, using bin width determined by Sturges’ Rule.

Generate a random sample of standard lognormal data (rlnorm()) for sample size n = 100. Construct histogram estimates of density for this sample using Sturges’ Rule, Scott’s Normal Reference Rule, and the FD Rule.