WorksheetsYr 7 Digital Technologies Crack the Code Online Test
Total questions: 40
Worksheet time: 2hrs 0mins
Digital data only has two values - 1 or 0, On or Off
True
False
WPA (Wi-Fi Protected Access) is a security technology for Wi-Fi networks
True
False
Data transmitted across the internet is divided into 'packets' before transmission
True
False
A vector graphic is
a digital image where every pixel is represented by a set number of bits
an image with arrows that point in different directions
not able to be enlarged without losing quality
rendered according to mathematical formulae which can scale to any size
A microphone is a
storage device
output device
input device
processing device
Are traffic lights a control system?
Yes
No
What is a bit?
A single binary digit
A small part from a computer
The connections on a computer motherboard that carry data signals
A graphic icon that represents a hyperlink
TCP/IP is short for
Telephone Connection Program / Internet Program
Transmission Control Protocol / Internet Protocol
Telecommunications Central Post / Interwebber Protocol
Transmission Central Post / Internal Protocol
Analogue data
has distinct levels
is based on 1s and 0s
is infinitely variable real world data
is optional for computer systems
A byte is
8 bits
equivalent to a letter, number, character or symbol
can input a carriage return from your keyboard
all of the above
When digitising sound, the sample rate is
how fast the sound is being played
optional to the digitising process
not important to the quality of the digitised sound
the number of samples rcorded every second
A scanner is not a digitiser
True
False
The Design and production process involves 4 main steps. The correct sequence of these steps is
Researching & planning; Identifying & defining; Producing & implementing; Testing & evaluating
Producing & implementing; Testing & evaluating; Researching & planning; Identifying & defining
Identifying & defining; Researching & planning; Producing & implementing; Testing & evaluating
Researching & planning; Producing & implementing; Identifying & defining; Testing & evaluating
An IPO chart refers to
Internal Program Outcome
Input Process Output
Internal Process Output
Input Program Outcome
An example of a storage device is a
Keyboard
Monitor
Printer
USB
What is the CPU (Central Processing Unit)
a device that displays information in pictorial or text form
a principal part of any digital computer system
a peripheral device modelled after the typewriter
a handheld hardware device that controls a cursor in a GUI
A programmable device that receives data from inputs in order to produce one or more outputs is a
USB
microphone
scanner
microcontroller
What is the output of the following algorithm when a = 5 and b = 2?
0
3
5
1
What number is printed from the algorithm when A = 7, B = 5 and C = 9?
9
5
0
7
Is the Traffic Light algorithm correct?
Yes
No
Is this image an example of an algorithm?
Yes
No
Wireless networks, which use FM radio frequencies, have become increasingly popular in homes and small businesses
True
False
The cable in the picture below is a
fibre optic cable
coaxial cable
cat 5 twisted pair cable
parallel cable
The normal flow of data through devices is in the order of
Input - Power & Control - Output - Storage
Input - Storage - Power & Control - Output
Input - Processing & Control - Output - Storage
Input - Storage - Output - Processing & Control
An actuator falls into the category of
An output device
Processor
A storage device
An input device
A sensor is an example of
A processor
An input device
An output device
A storage device
A microcontroller is
a programmable device that receives data from inputs in order to produce one or more outputs
made up of small microchips that contain microscopic circuits called integrated circuits
also known as a Programmable Logic Controller (PLC) and can only work if it has been programmed
All of the above
The program written on a computer for a microcontroller is called a
outline
drawing
sketch
diagram
How is a program uploaded to a microcontroller?
via Wi-fi
via Bluetooth
via a router connection
via a USB cable connection
Is a microcontroller an independent control technology system?
Yes
No
The language that Arduino microcontrollers are based on is
HTML
C/C++
Python
Scratch
Syntax refers to
A digital machine that works on binary numbers at its core
A programming language using trigonometry
An Analog to Digital Converter
The structure of statements in a computer language
Using the ASCII - Binary table, work out the statement and type it below
01011001 01101111 01110101 00100000 01101000 01100001 01110110 01100101 00100000 01100011 01110010 01100001 01100011 01101011 01100101 01100100 00100000 01110100 01101000 01101001 01110011 00100000 01100011 01101111 01100100 01100101
(a)
Graphics extensions such as .jpeg, .gif and .png are all examples of a
Vector
Sample
Raster
CAD package
Which of the following data transmission cables is made of extremely pure glass
Optical Fibre
Coaxial
Twisted Pair
High voltage
Which transmitters send very high frequencies and have less signal interference in wireless networks
radio
sea waves
microwaves
nanowaves
Which of the following symbols represents a process or action in a flowchart
Which of the following symbols represents either the start or end of the algorithm in a flowchart
The 3 main forms of program logic, called control structures, that we can use to solve our programming problems with are:-
Repetition, Scaling or Branching, Selection
Selection or Branching, Syntax, Repetition
Sequence, Selection or Branching, Repetition
Sequence, ASCII, Branching or Scaling
Using the ASCII - Binary Character Table, decipher the following statement:
01010100 01101000 01100001 01110100 01110011 00100000 01100001 01101100 01101100 00100000 01000110 01101111 01101100 01101011 01110011
(a)
