Data Type and Data Structures

Description

Quiz on Data Type and Data Structures, created by Harry Guest on 24/03/2015.
Harry Guest
Quiz by Harry Guest, updated more than 1 year ago
Harry Guest
Created by Harry Guest over 9 years ago
39
1

Resource summary

Question 1

Question
Which of these are the two Numeric Data types?
Answer
  • Integer and Real
  • Character and Integer
  • Real and Character
  • String and Character

Question 2

Question
What is Boolean data?
Answer
  • Data that can have up to two values
  • Data that can only have two values
  • Data that allows us to store more than one item of data
  • Data used store characters, digits and punctuation symbols

Question 3

Question
Which of these variables would use a String?
Answer
  • Variable: TotalPrice (The cost of the tickets booked by the customer)
  • Variable: SeatNumber (For example F7, meaning the seat is in row F, number 7)
  • Variable: SeatAvailable (Whether a seat can be booked)
  • Variable: NoTickets (The number of tickets wanted)

Question 4

Question
What is a serial file?
Answer
  • Files in which records are stored in the order in which they were entered
  • Files in which records have been placed in the file according to some math­ematical hash algorithm
  • Files in which records are stored according to some key field
  • Files in which records are stored according to some key field and where one or more indexes have been created to make searching even more efficient

Question 5

Question
How would we reference the value 18 from the image?
Answer
  • 24
  • 42
  • 18
  • 8

Question 6

Question
What are the four items which need to be stated when defining an array?
Answer
  • Name of array
  • Data type of contents
  • Dimensions
  • Maximum number of elements/size of array/bounds of array
  • Length of array
  • Number of values
  • Variable types
  • Location of array

Question 7

Question
What are three advantages of using an array rather than 100 separate variables?
Answer
  • Code is easier to manage
  • Can use iteration
  • Code will be more easily scaleable
  • Code will be more accurate
  • Can use more variables
  • Allow individual data items to be accessed

Question 8

Question
What does a record do?
Answer
  • Stores a series of similar data items together under one identifier
  • Stores several different related data items under one identifier
  • Stores a series of similar data items together under multiple identifiers
  • Stores several different related data items under multiple identifiers

Question 9

Question
What is an integer used to store?
Answer
  • Whole numbers
  • Numbers that may have a decimal point

Question 10

Question
Alphanumeric data types are used to store textual data
Answer
  • True
  • False

Question 11

Question
What does the first row of the table tells us?
Answer
  • The position of each item of the array
  • The position of each item of the record
  • The position of each variable of the array
  • The position of each variable of the record
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