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Describe the purpose of the Evaluation stage
To see if the program is fit for purpose, robust, maintainable and makes use of efficent coding constructs
Explain why the Developmental process is iterative
Each stage can be revisited in order to improve the final stage
A program reads data from an outdoor temperature sensor and displays an appropriate message to the user Identify the inputs, process and outputs
inputs - temperature process- decide message output-message
Explain what is meant by the character data type
a single character
A school wants to reduce the energy consumption of the computing department. Pupils are already encouraged to put the computers into standby mode when not in use. Describe two other methods to reduce the energy consumption of the computers.
• settings on monitors • power down when not in us
Claire is no longer able to run the 3-4 Years class on a Tuesday in the Autumn block. The SQL statement below is written to make the change. DELETE FROM Class WHERE leaderName = “Claire” AND classAge = “3-4 Years”; Give one reason why this SQL statement is not fit for purpose
All Claire’s ‘3-4 Years’ classes are removed.
Why would a low fidelity prototype be used during the web design stage
to show the intended user interface to client
Field type for mobile phone numbers in a database: 07968877171
Text
What is 87 in binary
01010111
What is an insert anomaly
When a table only permits new data in all fields
What can be determined by listing the fields and tables that need to be included in the database?
Functional Requirements
The following HTML is to be added to the website. <a>Car of the Week</a> State the purpose of adding this HTML to the website.
adds a hyperlink
What is the purpose of the ˂div˃ element in HTML?
To allow for styles to be applied to a group of elements within a section of HTML code
What is the purpose of the ˂ul˃…˂/ul˃ tags?
to show an unordered list
Arthur’s Antiques sells old furniture. All staff receive a monthly bonus of £50, which is increased if they sell over 10 items of furniture. The bonus is increased further if they sell over 20 items of furniture. List the variables and data types required to implement the solution
loop, integer bonus, real sales, integer
Explain why the telephone number 07700 901012 should be stored as a text field type and not a numeric field type.
The telephone number contains a leading zero which would be dropped if stored as a number The telephone number contains a space which is not valid in numeric field The telephone number will not be used for calculations
Name the part of the computer system that will carry out each of the following tasks during the execution of Line 23. (i) Carries the location of redAvailable in main memory.
address bus
State the component that enables a processor and a hard disk drive to communicate.
interface
What is the name for the graphical representation of entities in a database that shows their relationship to each other?
Entity Relationship diagram
businesses must (under Data Protection)
process information lawfully
what is not a vector object
circle
what is the purpose of using a pre defined function
no need to write code error free (no need to test) re-useable
what is a purpose of a data dictionary
a plan of how data will be implemented
ASC
ascending order