Explain relational database and metadata

Assignment Help Database Management System

Reference no: EM13192642

1. Which is not a factor to consider in software evaluation?

A. Performance effectiveness

B. Performance efficiency

C. Target Operating System

D. Ease of use

E. Quality of documentation

2. In a database, Keys are:

A. Normalized

B. The names of database tables

C. Used to identify the most important attribute of an Entity

D. Data items in a record used to identify the record

3. In a relational database, Metadata:

A. Specifies the size in Bytes of the database tables

B. Describes the name given and the length assigned each data item

C. Describes the associative relationships between Entities

D. Provides the answers to queries

4. Peer reviewers are the key participants in which activity?

A. Structured walkthroughs

B. Top-down testing

C. Six-Sigma quality checks

D. Rapid Application Design (RAD)

5. All of the following are true about Modular Programming except:

A. Modules should contain Go-To statements

B. Paying attention to the interfaces is important

C. Modules should be highly cohesive

D. It facilitates breaking the programming into logical, manageable portions

6. A military information system on a base overseas tracks personnel on the base. Each military member is tracked byID#, name, rank, and address. Each military member belongs to an organization on the base which has an organizationalname, located in a building on the base and has a primary function (e.g. Communications Squadron). Each of these organizations is also commanded by one of the military members . In tracking command sponsorship each militarymember may have one or more dependents. Each dependent has an ID#, name, age, and sex. Each organizationon the base is involved working issues or projects which may be of interest to the base commander. Each organization also belongs to a command which has a location and a unique numerical designation. The Organization's projects are tracked by a serial number and an origination date. The information system you are designing will also track descriptions of the projects and their close-out dates. Build an entity relationship model for the above scenario. Show all attributes and indicate all of your key attributes in red.

Reference no: EM13192642

Questions Cloud

How large is the initial spending injection : WASHINGTON-Less than one month after President Obama took office, Congress last night passed his flagship proposal, an unprecedented collection of tax cuts and new spending that Democrats say offers the country its best hope to stave off an impend..

Sketch the dual function : solve the problem and its dual, and relate the solutions to your sketch for question 1

Compute the energy of the photons : Calculate the energy of the photons and determine which principal quantum levels the transition might come from.

Which function passes the horzontal test a horzontal line : Which function passes the horzontal test a horzontal line of a parabla or a radical sign or a u line.

Explain relational database and metadata : Which is not a factor to consider in software evaluation and explain relational database and Metadata - Build an entity relationship model

Illustrate the morality of market exchange : Economists typically view free and mutually advantageous exchanges as a good thing - in the words of economists, they are "Pareto Improving." However, we may find in the literature on the "morality of market exchange".

Compute the debroglie wavelength of the emitted electron : ground state absorbs 2.50 times as much energy as the minimum required for it to escape from the atom. Calculate the deBroglie wavelength of the emitted electron

How many weigh more than 200 pounds : On Team C, 82.5% of the football players weigh more than 200 pounds. If 40 men are on the team, how many weigh more than 200 pounds?

Choose two dimensions to plug into your formula : When John, decided to renovate his garage, he also wanted to attach it to his house. The only one wall that was available to achieve this was the kitchen wall.

User Account

All Pages