WorksheetsYear 9 July 2018 PPE Revision
Total questions: 83
Worksheet time: 1hrs 5mins
Name
Class
Date
1.
1.1 a
CPU stands for Computer Processing Unit
CPU stands for Computer Processing Unit
a)
TRUE
b)
FALSE
2.
1.1 a
CPU processes all data and instructions
CPU processes all data and instructions
a)
TRUE
b)
FALSE
3.
1.1 a
CPU ______________ instructions?
CPU ______________ instructions?
a)
FETCH EXECUTE DECODE
b)
FETCH DECODE EXECUTE
c)
EXECUTE FETCH DECODE
d)
EXECUTE DECODE FETCH
4.
1.1 a
Clock speed, number of cores and cache affects CPU performance?
Clock speed, number of cores and cache affects CPU performance?
a)
TRUE
b)
FALSE
5.
1.1 b
Which register is being described?
Stores the results of the calculations done by the ALU
Which register is being described?
Stores the results of the calculations done by the ALU
a)
MAR
b)
MDR
c)
Accumulator
d)
Program Counter
6.
1.1 b
Which register is being described?
Holds the memory address about to be used by the CPU
Which register is being described?
Holds the memory address about to be used by the CPU
a)
MAR
b)
MDR
c)
Accumulator
d)
Program Counter
7.
1.1 b
Which register is being described?
Holds the data / instructions that have been fetched from memory
Which register is being described?
Holds the data / instructions that have been fetched from memory
a)
MAR
b)
MDR
c)
Accumulator
d)
Program Counter
8.
1.1 b
Which register is being described?
Holds the memory address of the instruction for each cycle
Which register is being described?
Holds the memory address of the instruction for each cycle
a)
MAR
b)
MDR
c)
Accumulator
d)
Program Counter
9.
1.1 b
The program counter is not incrementing on each cycle. What is likely to happen?
The program counter is not incrementing on each cycle. What is likely to happen?
a)
The address of the next instruction will always be the same
b)
The CPU will crash
c)
The data and instructions will be wiped
d)
Nothing
10.
1.1 b
Which statement is TRUE?
Which statement is TRUE?
a)
Registers are super fast memory, stores tiny instructions which can be accessed by the CPU quickly
b)
Registers are super fast memory, stores lots of instructions which can be accessed by the CPU slowly
11.
1.1 c
What part of the CPU is being described.
Executes instructions and controls the flow of data
What part of the CPU is being described.
Executes instructions and controls the flow of data
a)
ALU
b)
Control Unit
c)
Cache
12.
1.1 c
What part of the CPU is being described.
Carries out arithmetic operations and performs logical comparisons.
What part of the CPU is being described.
Carries out arithmetic operations and performs logical comparisons.
a)
ALU
b)
Control Unit
c)
Cache
13.
1.1 c
What part of the CPU is being described.
Very fast memory which stores regularly used instructions. CPU can access instructions held here quicker than from RAM
What part of the CPU is being described.
Very fast memory which stores regularly used instructions. CPU can access instructions held here quicker than from RAM
a)
ALU
b)
Control Unit
c)
Cache
14.
1.1 f
Which best describes embedded systems
Which best describes embedded systems
a)
A smaller version of a computer
b)
A computer system that is built into another device
c)
A device that looks like a computer
15.
1.1 f
Is this an embedded system?
Is this an embedded system?
a)
YES
b)
NO
16.
1.1 f
Is this an embedded system?
Is this an embedded system?
a)
YES
b)
NO
17.
1.1 f
Is this an embedded system?
Is this an embedded system?
a)
YES
b)
NO
18.
1.1 f
Is this an embedded system?
Is this an embedded system?
a)
YES
b)
NO
19.
What acts as a part way of storing data between the processor and the Main Memory?
a)
Bus
b)
User
c)
Cache
d)
Clock
20.
What is held in cache?
a)
All of the programming instructions
b)
Commonly used instructions and data
c)
Instructions that have been processed
d)
Data that hasn’t been used for a long time
21.
1.2 abc
RAM or ROM? All running programs are held here when it is being used.
RAM or ROM? All running programs are held here when it is being used.
a)
RAM
b)
ROM
22.
1.2 abc
RAM or ROM? The operating system is loaded into here when the computer boots up
RAM or ROM? The operating system is loaded into here when the computer boots up
a)
RAM
b)
ROM
23.
1.2 abc
RAM or ROM? All boot up instructions are held here
RAM or ROM? All boot up instructions are held here
a)
RAM
b)
ROM
24.
1.2 abc
Why would you need to increase RAM?
Why would you need to increase RAM?
a)
You may not have enough RAM to run certain software
b)
The CPU is not working fast enough
c)
The hard drive may be full
25.
1.2 abc
Why would you need to increase RAM?
Why would you need to increase RAM?
a)
Computer is running slow because it is using virtual memory
b)
The CPU is not working fast enough
c)
The RAM is overheating
26.
1.2 d
If the RAM is low, the computer can use extra memory from the ________
If the RAM is low, the computer can use extra memory from the ________
a)
ROM
b)
CPU
c)
CACHE
d)
HARD DRIVE
27.
1.2 d
When the hard drive is used as extra RAM, this is known as _______
When the hard drive is used as extra RAM, this is known as _______
a)
Virtual Reality
b)
Virtual Memory
c)
Extra Memory
d)
RAM
28.
1.2 d
Swapping data between RAM and Virtual Memory can slow down the computer
Swapping data between RAM and Virtual Memory can slow down the computer
a)
TRUE
b)
FALSE
29.
1.3
Hard Drives / Solid State Drives / CDs and DVDs / SD Cards
Hard Drives / Solid State Drives / CDs and DVDs / SD Cards
a)
PRIMARY STORAGE
b)
SECONDARY STORAGE
c)
TERTIARY STORAGE
30.
1.3 a
Secondary Storage devices are needed to store files / software long term
Secondary Storage devices are needed to store files / software long term
a)
TRUE
b)
FALSE
31.
1.3 b
Hard Drives is a __________ type of storage device
Hard Drives is a __________ type of storage device
a)
Magnetic
b)
Optical
c)
Solid State
32.
1.3 b
Memory cards / USB Pen drives are __________ type of storage device
Memory cards / USB Pen drives are __________ type of storage device
a)
Magnetic
b)
Optical
c)
Solid State
33.
1.3 c
Which storage characteristic is being described? - How easy it is to move
Which storage characteristic is being described? - How easy it is to move
a)
Speed
b)
Portability
c)
Cost
d)
Durability
34.
1.3 c
Which storage characteristic is being described? - How fast it can access data
Which storage characteristic is being described? - How fast it can access data
a)
Speed
b)
Portability
c)
Cost
d)
Durability
35.
1.3 c
Which storage characteristic is being described? - How much data it can store
Which storage characteristic is being described? - How much data it can store
a)
Speed
b)
Durability
c)
Cost
d)
Capacity
36.
1.3 c
Which storage characteristic is being described? - How well it lasts if dropped / shaken
Which storage characteristic is being described? - How well it lasts if dropped / shaken
a)
Speed
b)
Durability
c)
Cost
d)
Capacity
37.
1.3 c
Which storage characteristic is being described? - How consistent it performs
Which storage characteristic is being described? - How consistent it performs
a)
Reliability
b)
Durability
c)
Cost
d)
Capacity
38.
1.3 c
Which storage characteristic is being described? - How much it costs per GB
Which storage characteristic is being described? - How much it costs per GB
a)
Reliability
b)
Durability
c)
Cost
d)
Capacity
39.
1.3 c
Which storage device has the fastest read / write speed?
Which storage device has the fastest read / write speed?
a)
Solid State Hard Drive
b)
Hard Drive
c)
Optical Disc
d)
Magnetic Tape
40.
1.3 c
Which storage device has the slowest read / write speed?
Which storage device has the slowest read / write speed?
a)
Solid State Hard Drive
b)
Hard Drive
c)
Optical Disc
d)
Magnetic Tape
41.
1.3 c
Which storage device has the priciest cost per GB?
Which storage device has the priciest cost per GB?
a)
Memory Card
b)
Hard Drive
c)
Solid State Hard Drive
d)
Magnetic Tape
42.
1.3 c
Which storage device has the cheapest cost per GB?
Which storage device has the cheapest cost per GB?
a)
Memory Card
b)
Hard Drive
c)
Solid State Hard Drive
d)
Magnetic Tape
43.
1.3 c
Which storage device has the greatest capacity?
Which storage device has the greatest capacity?
a)
Optical Disc
b)
Hard Drive
c)
Solid State Hard Drive
d)
Magnetic Tape
44.
1.3 c
Which storage device has the least capacity?
Which storage device has the least capacity?
a)
Optical Disc
b)
Hard Drive
c)
Solid State Hard Drive
d)
Magnetic Tape
45.
1.3 c
Which storage device is most likely to be used in an action camera
Which storage device is most likely to be used in an action camera
a)
Optical Disc
b)
Hard Drive
c)
Solid State Hard Drive
d)
Solid State Memory Card
46.
1.3 c
Which storage device is least likely to be used in an action camera
Which storage device is least likely to be used in an action camera
a)
Optical Disc
b)
Hard Drive
c)
Solid State Hard Drive
d)
Solid State Memory Card
47.
1.3 c
Which storage device is a school most likely to use to back up all of the students work each week?
Which storage device is a school most likely to use to back up all of the students work each week?
a)
Optical Disc
b)
Hard Drive
c)
Solid State Hard Drive
d)
Magnetic Tape
48.
1.3 c
A magnetic hard drive has no moving parts
A magnetic hard drive has no moving parts
a)
TRUE
b)
FALSE
49.
Add these two 4 bit binary numbers together. What is the answer?
a)
10101
b)
1100
c)
00111
d)
0101
50.
Binary is known as _______ because it uses the digits 1 and 0.
a)
Base 2
b)
Base 4
c)
Base 10
d)
Base 16
51.
Convert the denary value 24 into an 8 bit binary number.
a)
00000011
b)
11000000
c)
00010110
d)
00011000
52.
Convert the denary value 56 into an 8 bit binary number.
a)
00111000
b)
00110100
c)
10101010
d)
00011111
53.
Why can an overflow error occur when adding two 8 bit binary numbers?
a)
Because the number cannot be represented as an 8 bit binary number. It requires a 9th bit.
b)
Because a miscalculation has been made.
54.
Calculate the denary value of the 8 bit binary number 01011111
a)
95
b)
55
c)
68
d)
105
55.
What is the denary value of the sum of these two 4 bit binary numbers?
a)
4
b)
8
c)
12
d)
16
56.
In a logical _____ shift we multiply by 2 for each shift place.
a)
Left
b)
Right
c)
Right and Left
57.
In a logical _____ shift we divide by 2 for each shift place.
a)
Left
b)
Right
c)
Right and Left
58.
Shift 01101000 to 3 places to the right
a)
00110100
b)
00001101
c)
00011010
59.
The binary chart we use to convert decimal to binary is:
a)
16 14 12 10 8 4 2 1
b)
100 80 70 60 50 40 30 20 10
c)
128 64 32 16 8 4 2 1
d)
512 256 128 64 32 16 8 1
60.
Under which two scenarios can we use shifting bits in binary?
a)
Multiplication and Division
b)
Multiplication and Division (powers of 2)
c)
Addition and Subtraction
d)
Addition and Multiplication (powers of 2)
61.
What is a standalone computer?
a)
A computer that is not connected to a network
b)
A computer that is being used as a server
c)
A computer that does not have any peripherals attached to it
d)
A computer that is used by only one person
62.
Which of these is a characteristic of a LAN?
a)
It covers a wide geographical area
b)
Computers are connected together using a leased line or a satellite
c)
Users can share files and peripherals
d)
Data can only be transmitted at a very slow rate
63.
Which of these is a characteristic of a WAN>
?
?
a)
It covers a small geographical area
b)
Normally has a lower bandwidth than a LAN
c)
It is contained within one building
d)
Users are not able to share files and peripherals
64.
Which transmission media is capable of having a much bigger bandwidth?
a)
Coaxial
b)
Twisted pair cable
c)
Plastic
d)
Fibre optoc
65.
Which type of transmission media is the least expensive to manufacture?
a)
Coaxial
b)
Twisted pair cable
c)
Plastic
d)
Fibre optic
66.
Which of these components is internal to a computer and is required to connect the computer to a network?
a)
Wireless Access Point
b)
Network Interface card
c)
Switch
d)
Hub
67.
What does LAN stand for?
a)
Local Arena Network
b)
Local Area Network
c)
Long Area Network
d)
Local Arena Name
68.
What does WAN stand for?
a)
Wide Area Network
b)
Wide Arena Network
c)
World Area Network
d)
World Arena Network
69.
Which network covers a large area?
a)
LAN
b)
WAN
70.
Which network covers a small area?
a)
LAN
b)
WAN
71.
Cardiff University has its campus buildings spread out across the city.
Which network is being used?
Which network is being used?
a)
LAN
b)
WAN
72.
A LAN makes use of external hardware such as satellites and phone lines
a)
True
b)
False
73.
Which network has the highest connection speed?
a)
LAN
b)
WAN
74.
What is the purpose of a LAN?
a)
To allow computers to communicate with each other in the same area
b)
To allow computers to communicate with each other - anywhere in the world
75.
What is the purpose of a WAN?
a)
To allow computers to communicate with each other in the same area
b)
To allow computers to communicate with each other - anywhere in the world
76.
Why do we network computers together?
a)
So they can share files and resources.
b)
To have sole use of a machine and avoid bandwidth limitations.
77.
Two or more computers connected close together in a local area e.g. building or office is called?
a)
WAN
b)
LAN
c)
The Internet
d)
Virtual Network
78.
Two or more computers connected together over a wide geographical area (e.g. county, country, globe). What type of network is this?
a)
LAN
b)
School Network
c)
WAN
d)
The Internet
79.
What is an advantage of a LAN?
a)
You can save money by sharing peripherals like printers.
b)
It is limited to a small area.
c)
Can cover near infinite geographical distance.
d)
Expensive to setup.
80.
What is a disadvantage of a LAN?
a)
Site (software) licences are likely to be cheaper than buying several standalone licences.
b)
Security is good - users cannot see other users' files unlike on stand-alone machines.
c)
if the main cable fails or gets damaged the whole network will fail
d)
Purchasing the network cabling and file servers can be expensive.
81.
Variables cannot be changed.
a)
False
b)
True
82.
Constants cannot be changed.
a)
True
b)
False
83.
Which of these values would be useful as a constant?
a)
Pi
b)
Di
c)
Ni
d)
Pie
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