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OCR GCE Computing Unit 1 Flashcards | StudBud
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OCR GCE Computing Unit 1
OCR GCE Computing Unit 1
263 terms
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263 cards
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Answers
1
What is an entity?
A person/item/action that needs to be modelled
A keyword for defining a new object
Something that exists in itself
An action
2
Which of these is NOT an interrupt type?
Timer interrupt
High interrupt
I/O interrupt
Hardware error
3
If the data in the MDR is LDA where is it placed next?
Current Instruction Register
Memory Data Register
Accumulator
Program counter
4
Concurrent processing means...?
All processing happens at once
Multiple processors execute instructions simultaneously
Contiguous processing
One process after the other
5
What is the output for this circuit? A OR (NOT A AND B)
A
1
A AND B
A OR B
6
Alpha testing is...?
Testing undertaken by the software developer
The code is followed to consider all possible outcomes of a system
Testing got make sure that the system matches the user requirements
The code is ignored, functionality is tested
7
The command for a new paragraph in HTML is..?
Empty choice
Empty choice
Empty choice
Empty choice
8
Subtract this number 01011000010 (7 bit man & 4 bit exp) from 0111001000101 (9 bit man & 4 bit exp)
10101110
11001110
1.001E+11
1001001
9
Which system is designed to allow time slices?
Stand-alone
Multi-tasking
Multi-user
Batch
10
Convert this denary number, 37, to 8 bit binary 2s compliment:
1010100
100101
1001001
10010110
11
Some common uses of binary trees include:
Reverse polish notation
Fast access to data
The consolidation of data
Reverse portugese notation
12
Which is these os a static data structure?
An Array
A queue
A variable
A stack
13
Which of these is NOT an advantage of magnetic storage?
Has high speed compared to CD ROM
Cheaper than SSD per GB
Theoretically a longer life than SSD
Uses flash memory
14
Hashing is used for.....
To hide data
Coding data
To associate an address with a username and password
To make sure passwords can't be seen
15
CISC architectures do NOT have....
an instruction performs a simple task
many addressing modes are available
many instructions are available
a single register set
16
Run length encoding is always an efficient way of compression...
when compressing an image that has lots of pixels of the same colour
when compressing English text
if the text is in latin
Using circular indexing techniques
17
To transport a digital photograph, which device would you recommend?
A hard disk drive
A flash drive/data pen
A DVD
Magnetic Tape
18
Which of these is included in CRUD?
Review
Relational
Referential Integrity
Read
19
Hashing is used for....
To code data
To make sure data cant be seen
To hide passwords
Storing and accessing data in a database
20
What is a primary key?
one of a kind
a unique identifier
a unique record
an index
21
If a binary tree is created for: J, A, C, H, L, what is the first piece of data visited in a post-order traversal?
J
H
C
A
22
Which of these start and end a table cell in HTML?
Empty choice
Empty choice
Empty choice
Empty choice
23
An advantage of embedding CSS in an HTML file is...?
Rewriting the CSS for each webpage is time consuming
The webpage download a new version of the CSS each time
Caching the CSS can allow for faster download speeds
CSS is a dynamic language that renews itself
24
FIFO stands for?
First in first out
First in final out
frequent in frequent out
Final input first output
25
Which of these is a scheduling algorithm?
First in first out
Last in First Out
Round Robin
Fastest First
26
Which os these is a dynamic data structure?
A constant
A binary tree
A tuple
An array
27
If the data in the MDR is the value 01011 where is it placed next?
Accumulator
Program counter
Current Instruction Register
Memory Data Register
28
Which of these is NOT an feature of an operating system?
File storage
Interrupt management
Error reporting
Resource management
29
What are the contents of the MDR?
The address of the current instruction
The data
The address of the next instruction/data
The result of the current instruction
30
Which of these is a disadvantage of parallel processing?
Each data set must be independent
Can make maximum use of the CPU by pipelining
Is faster than a single processor
Is not limited by the bus transfer rate (Vonn Neumann bottleneck)
31
Which of these is NOT a stage in the waterfall cycle?
Design
Installation
Investigation
Prototyping
32
The command for the topmost heading in HTML is..?
Empty choice
Empty choice
Empty choice
Empty choice
33
Which of these is NOT and advantage of a static data structure?
Easier to check for overflow
Easier to program
Allows random access
Wastes space when only partially used
34
Which best describes a declarative language. A high level language.....?
that is concerned with the result not method
in which code can be blocked as procedures & functions
that orders data
that executes each command sequentially
35
The OS is stored in the...?
Hard drive
RAM
ROM
Cache
36
Convert this denary number, -0.625, to norm FP, 8 bit man, 4 bit exp 2s comp:
1.1001E+11
1.01111E+11
10101000111
1.011E+11
37
RISC architectures do NOT have...
each instruction performs a complex task
a limited number of instructions is available
multiple addressing modes
commands may take a number of machine cycles
38
Symmetric encryption....
Uses a public and private key
Codes data
Uses non-symmetric coding
Uses a shared key
39
Which of these is best suited to small, heavily supervised project?
Spiral
Extreme
RAD
Waterfall
40
Which system is designed to run with one user?
Multi-user
Batch
Stand-alone
Multi-tasking
41
What is the output for this circuit? A.0
0
1
A
B
42
Convert this denary number, 0.4375, to norm FP, 8 bit man, 4 bit exp 2s comp:
1.011E+11
10101000111
11100001111
1.01111E+11
43
Which of these is a feature of an operating system?
Device allocation
Memory reporting
File management
User Interface
44
Which part of the FDE cycle is when the instruction is decoded?
Decode
Fetch
Combine
Execute
45
Secondary storage provides...?
A place to store the boot strap
Permanent storage for data
A place to edit data
More memory
46
Which of these is NOT a scheduling algorithm?
System of priorities
First come first serve
Shortest remaining time
Efficient CPU use
47
Which of these is NOT a function of an operating system?
Provide a user interface
Disk management
Operates resources
Provides security
48
CISC architectures....
Many addressing modes are available
fixed number of bytes
Uses more programming to operate
Take more cycles per instruction
49
Which of these is a function of an operating system?
Transfers data
Accessibility
Emails
Memory mangement
50
Which of these SQL commands edits data?
INSERT
DELETE
SELECT
UPDATE
51
Which of these relationships should be avoided?
Marrying your sister
one to one
Many to many
many to one
52
Stores current piece of data ready for add etc?
Memory Data Register
Accumulator
Program counter
Current Instruction Register
53
Protocols are....?
an agreed set of rules for communication between two computers
produced in layers so that they can be layered
A set of guidelines
Good for communication
54
Represent -183 in 9 bit twos compliment
110110111
10011000
101001001
10110110
55
If a binary tree is created for: J, A, C, H, L, what is the first piece of data visited in an in-order traversal?
A
H
C
J
56
An inefficient hashing algorithm will..
Will cost money
Cause collisions
Allow you to find the password
Cause encrypted messages to have errors
57
Convert this denary number, -37, to 8 bit binary 2s compliment:
11011011
1010100
1001001
100101
58
Which of these is NOT RAD?
Feasibility study
Changes are made, process repeated
Prototype is evaluated
Prototype is created
59
Cascaiding Style Sheets...?
Determine how good a website is
Work on the server side
Determine the layout and formatting for a website
Structures websites and processing
60
RISC are often used in...
For mobile devices
Because its better
For graphics production
Complex systems
61
A hashing algorithm....?
Produces a fixed length string
Produces a hashed entity
Is used to encrypt data
Is used for passwords
62
A list item, in HTML is...?
Empty choice
Empty choice
Empty choice
Empty choice
63
Which of these is NOT an advantage of networking computers?
Shared resources such as printers
Improved security
Better communication
Connected computers are more efficient
64
What buses are used during the Fetch in the CPU?
The Address and control bus
The data, control and address bus
The data and control bus
The data and address bus
65
Which of these is NOT a feature of an array processor?
Same instruction, simultaneously, multiple locations
Same calculation is very fast
Large use of RAM
SIMD
66
Which of these is a function of an operating system?
Buffering data
Security (p/w & u/n)
Financial feasibility
directs the ROM
67
If a binary tree is created for: J, A, C, H, L, what is the first piece of data visited in a pre-order traversal?
H
C
J
A
68
Increase the intensity of this RGB colour by 1, AF13CD
AF14CD
AF13CE
B014CE
C024DE
69
Which of these is an advantage of a flat file database?
quick to create
data consistency
can be moved easily
data integrity
70
Which of these runs on the server side?
HTML
CSS
PHP
JavaScript
71
What is a LAN?
A network in one geographical area
A network that rents/shares connections with other companies
A network spanning several geographical areas
A network in a local town
72
Which os these best describes in-order traversal
Travers left, visit node, visit right sub node
Vist left, visit right sub tree
Visit node, travers left, visit, travers right, visit
Travers left, visit node, travers right, visit node
73
Symmetric encryption means that...
They key can be intercepted
That keys are swapped between users
The key is kept public
Keys are kept secret
74
Which os these best describes post-order traversal
Visit node, travers left, visit, travers right, visit
Vist left, visit right sub tree
Travers left, visit node, visit right sub node
Travers left, visit node, travers right, visit node
75
Which of these shows the actual data (in hex/binary)?
Physical view
User view
Internal View
Logical View
76
What is the World Wide Web?
The links between data
Interconnected networks
Large programs
Linked web pages
77
RISC is...
Reduced instruction set computing
Risk integrating set computing
Reduced index set computing
Recycling Intergarated Sensors Control
78
Utility program that loads jobs & adjusts addresses is...
The Boot Strap
The Loader
The linker
The BIOS
79
Which of these is NOT an output device?
Portable hard drive
Siren
Plotter
Warning light
80
Which of these defines an object?
A single bit of data within a class
All of the objects attributes are hidden
AN instance of a class
The process of creating an actual named instance of a class
81
Which of these is NOT an input device?
Puff suck switch
Foot mouse
Data stick
Mouse
82
Which of these devices is best suited to gathering the answers to a multiple guess exam?
OCR
OMR
Digital camera
Scanner
83
Which of these is NOT a programming paradigm?
Object Code
Functional
Procedural
Declarative
84
Which of these development cycles is best suited to large scale projects?
Extreme
Spiral
RAD
Waterfall
85
Which of these do you NOT need for a network?
Server
Router
Switch
Network Interface Card
86
Which of these is NOT an input device?
Mouse
Data stick
Puff suck switch
Foot mouse
87
Convert 127.125 to fixed point binary decimal
10111111.11
10010100.1
111111.101
1111111.001
88
Why does a computer need secondary storage?
To backup data
To save files and software for future reference
To allow the CPU to change data
When RAM is full
89
A value that cannot be changed during run time is..?
A variable
A constant
An array
A linked list
90
Which of these do you NOT need for a network?
Network Interface Card
Router
Switch
Printer
91
Which of these is not true..?
Client side processing can be accessed by the user
Comipling HTML produces faster running object code
JavaScript runs on the client side
Downloading a CSS file can slow the webpage
92
during an interrupt the current registers are stored in..
stacks
records
arrays
queues
93
Which of these describes a high level language?
Non platform specfic
A language that uses mnenomics and interpreters
A low level language with one-to-one relationship with machine code
Designed to reflect the natural language of the programmer
94
Which of these is NOT part of a database?
sequences
tables
attribute
record
95
Which method of SDLC is best suited for a large project that is high risk?
RAD
Spiral
Waterfall
Extreme
96
An Interupt is...?
It stops the computer
Generated to stop normal execution
Sets the priority
Fixes the scheduling of programs
97
What is a WAN?
A network spanning several geographical areas
A network that uses switches
A network in a local town
A network in one geographical area
98
One instruction that is applied to lots of data is known as?
SISD
MIMD
SIMD
MINSC
99
Which part of the FDE cycle is when the instruction/data is loaded into the MDR?
Execute
Combine
Decode
Fetch
100
The contents found at the memory address are placed here?
Accumulator
Current Instruction Register
Program counter
Memory Data Register
101
A change in a database is....?
Record
Editing
Transition
Transaction
102
Which of these is a disadvantage of a flat file database?
data integrity
data consistency
data independence
data redundancy
103
Convert this denary number, -130, to 8 bit binary 2s compliment:
101111110
10010110
Too few bits
100101
104
Which lifecycle cannot respond easily to changes in the requirements?
Waterfall
Extreme
Agile
Spiral
105
What is a secondary key?
Used in flat file databases
A backup primary key
Controls access
Used for fast access when searching on this attribute
106
Which of these describes Assembly?
Imperative language
A low level language with one-to-one relationship with machine code
Non platform specfic
A language that uses mnenomics and interpreters
107
Which of these is not necessary for file management?
Deal with allocation whilst paging
Protect processes from each other
Protect memory
Enable memory to be shared
108
What is an advantage of Pipelining?
Increased execution of program
More efficient
Speeds up the RAM
Less time wasted
109
Which of these describes polymorphism?
Specialised overloading, data may be treated differently
A single bit of data within a class
All of the objects attributes are hidden
A program routine contained within an object
110
Which of these is not a database view?
Physical view
Logical View
User view
Internal View
111
Paging and Segmentation differ...
stored on backing store
ways of partitioning memory
in consistent size
assigned to memory when needed
112
Which os these best describes pre-order traversal
Visit node, travers left, visit, travers right, visit
Travers left, visit node, travers right, visit node
Vist left, visit right sub tree
Travers left, visit node, visit right sub node
113
Lossless encoding can result in larger files..?
True and false, lossless might give bigger files
True, if the encoding is not good
True, if the dictionary is not very efficient
False, compression always reduces file size
114
An entity is...?
A person or item, modelled as a table
An object
A thing
A real world thing, modelled in a database
115
The dampening factor....?
Means that too many clicks reduces your pagerank
Determines the pagerank of a webpage
Reduces the effect of the PR(Tn)/C(Tn)
Ranks the pages according to the number of outgoing hyperlinks
116
Atomicity is...?
Takes the database from one state to another
Change is complete, or not at all
Records must be locked
Change must be permanent
117
Which of these is NOT parallel processing?
Dual cache
Pipelining
Array processor
Multi-core processor
118
As one instruction is being executed, the next is being decoded and the one after that is being fetched
Parallel
Multi Core
Over clocking
Pipelining
119
What is meant by a relational database?
a database with only one table
a database with more than one linked tables
a database in third normal form
a database with SQL
120
Black-box testing is...?
Testing undertaken by the software developer
The code is followed to consider all possible outcomes of a system
Testing got make sure that the system matches the user requirements
The code is ignored, functionality is tested
121
Which of these is not used in email communication
HTTP
POP3
IMAP
SMTP
122
What are the contents of the PC?
The address of the next instruction/data
The result of the current instruction
The data
The address of the current instruction
123
What is the output for this circuit? A AND NOT A
A
B
0
1
124
Durability is...?
Change must be permanent
Change is complete, or not at all
Records must be locked
Takes the database from one state to another
125
Which of these is NOT a sensor?
Pressure
Ph
Object
Depth
126
The Internet layer of the TCP/IP stack...
Establishes and terminates communication between network entities
Produces data that can be read by end applications
Allows data to be transmitted over any hardware
Provided transmission from one router to another
127
A poor hash algorithm causes...?
Vulnerable security structures
Collisions
Fast data access
Lack of salting
128
.... is copied from the PC?
Accumulator
Memory Data Register
Current Instruction Register
The address of the current instruction
129
Which of these defines derived class?
A single bit of data within a class
A program routine contained within an object
The process of creating an actual named instance of a class
A class that inherits attibutes or methods from another class
130
Harvard architecture...
Has one bus in it
Stores the data and instructions in different memory
Stores the data and instructions in the same memory
Is able to co-process faster
131
RISC architectures....
Have multiple instructions available
Take one cycle per instruction
Have more complex hardware
Use less programming to operate
132
The ROM....?
Can be flashed
Can be changed when necessary
Can never be changed
Is volatile memory
133
Which of these is NOT an output device?
Portable hard drive
Warning light
Plotter
Siren
134
After the ALU has completed its command the result is placed in the....
MAR
MDR
ACCUMULATOR
PC
135
Which is not an advantage of a relational database?
volume of data minimised
duplication of data is minimised
inconsistency reduced
programs need altering when new tables are created
136
Which of these can involve two programmers coding at the same time?
RAD
Waterfall
Extreme
Spiral
137
A processor that is able to operate on multiple pieces of data SIMULTANEOUSLY is..?
Array
Contiguous
Scalar
Harvard
138
Which of these is NOT included in CRUD?
Delete
Create
Update
Review
139
What is the output for this circuit? A+0
A
1
B
0
140
How is an interrupt detected?
Compares priorities
The signal is sent from a device or software
At the end of the cycle
Interrupt register is checked
141
Which of these best describes pipelining?
Concurrent execution when running parallel
Consecutive decoding as one is fetched and decoded
As one instructed is executed the next is decoded, the next fetched
Polling
142
When adding data to a stack, you must first..?
Push data onto the stack
Delete redundant data
Check that the stack is not full
Access the stack
143
An Interrupt can be generated by?
Writing an email
Pressing a key
Turning on the computer
Serial file
144
What is a foreign key?
The key to Lithuania?
A link
A primary key in another table
A relationship
145
What is the output for this circuit? A.1
1
A
0
B
146
Which of these is NOT a state of a job
Ready
Running
Blocked
Steady
147
Which of these defines attribute?
A program routine contained within an object
A single piece of data within a class
The process of creating an actual named instance of a class
All of the objects attributes are hidden
148
The contents of the registers are held in what type of data sturcture during an interrupt?
Stack
Array
List
Queue
149
Which part of the FDE cycle is when the address increments the PC
Combine
Decode
Fetch
Execute
150
Which of these is 1NF?
A table with no repetition
A table with no repeating groups
non-key attributes are dependent on the primary key
A report of errors
151
What is not an advantage of client side processing?
Data is protected from user interference
Reduces the load on the server
Initial validation is immediate
Program is running locally, so should be faster
152
Add these binary numbers together 1011101 + 0001100
101101
1001000
1101001
1110001
153
Primary memory does NOT include...?
The Cache
RAM
The hard drive
Virtual memory
154
One command applied to one piece of data is known as?
MINSC
SIMD
SISD
MIMD
155
Which of these stores the address of the next instruction to be fetched?
Accumulator
Program counter
Memory Data Register
Current Instruction Register
156
Von Neumann architecture....
Stores the data and instructions in the same memory
Is able to pipeline faster
Has multiple buses in it
Stores the data and instructions in different memory
157
Lossy compression....
Always loses data
Is best for text
Never loses data
May lose data
158
Which method of SDLC is best suited for a small project that needs careful supervision?
Spiral
RAD
Waterfall
Extreme
159
Which of these is best suited a project without clear outcomes?
Waterfall
Agile
Spiral
Project
160
The transport layer of the TCP/IP stack...
Allows data to be transmitted over any hardware
Produces data that can be read by end applications
Provided transmission from one router to another
Establishes and terminates communication between network entities
161
Which spreadsheet tools can read this sheet and export to xlsx format?
Numbers
LibreOffice
Google Docs
Excel
162
Which of these defines Overriding?
The process of creating an actual named instance of a class
A method in a subclass that has the same name as a superclass
A single bit of data within a class
All of the objects attributes are hidden
163
The CSS for an identifier in CSS is...?
You dont get identifiers in CSS
.infobox{}
Empty choice
infobox{}
164
Lots of instructions applied to lots of data is known as?
SIMD
MIMD
MINSC
SISD
165
Which of these is NOT an adavantage of client side processing?
Initial validation is immediate
Once initially downloaded a cached version can be used
Reduces the load on the server
Users can change the code
166
Which of these storage devices is optical?
CD ROM
Hard drive
SSD
Pen drive
167
Which of these can have a user working with the development team for the whole process?
Extreme
Waterfall
Spiral
RAD
168
Why do we compress files...?
To reduce transmission time
To make them smaller
To zip them up
To speed up files
169
Why are many to many relationships not allowed?
They are difficult to program
They are against the rules of 3NF
They cause redundant data
They are a pain
170
The ROM contains....?
The BIOS, Bootstrap and POST
The BIOS and OS
The BIOS, Bootstrap and OS
The OS
171
As one instruction is being executed, the next is being decoded and the one after that is being fetched
Over clocking
Parallel
Pipelining
Multi Core
172
Which of these runs on the server side?
HTML
JavaScript
CSS
SQL
173
Which of these is a function of an operating system?
Networking
Transfers data
Emails
Utilities tasks
174
Which method of SDLC is best suited for a project that does not have a clear outcome?
Spiral
Evolutionary
RAD
Waterfall
175
Layering protocols allows....?
To allows different transportation media to be used
To standardise all Internet traffic
Protocols to be independent of each other
So that changes can be made to the Internet
176
Which part of the FDE cycle is when the address is copied from PC to MDR
Decode
Combine
Fetch
Execute
177
The application layer of the TCP/IP stack...
Allows data to be transmitted over any hardware
Provided transmission from one router to another
Establishes and terminates communication between network entities
Produces data that can be read by end applications
178
Where is Cache memory usually located?
On the harddrive
As part of the RAM
In the CPU
On the motherboard
179
Which system is designed to allow several users to access resources at the same time?
Batch
Multi-tasking
Multi-user
Stand-alone
180
Which of these defines method?
All of the objects attributes are hidden
A program routine contained within an object
The process of creating an actual named instance of a class
A single bit of data within a class
181
Which of these is NOT a quadrant in the spiral model?
Analysis/risk assessment
Implementation
Documentation
Evaluation
182
Convert this hexidecimal number to binary, AE
0
11101010
10010010
10101110
183
What is the purpose of a switch?
broadcast data to all stations on a network
To connect a network to the Internet
directs traffic to a particular station
To make the network more efficient
184
Sensors are used to measure...?
Analogue signals
Digital signals
Step wave signals
Signals from the real world
185
Time slicing is...?
Allocates the amount of time for a process
Allows programs to run in order
Setting up which program runs when
Directs the CPU
186
When putting data into a queue, you must first...?
Dequeue data
Make sure that the queue is not full
Enqueue data
Create a queue
187
Which of these is a function of an operating system?
I/O management
Emails
Networking
Transfers data
188
Which of these start and end a table row in HTML?
Empty choice
Empty choice
Empty choice
Empty choice
189
Which of these defines class?
A blueprint for an object
The process of creating an actual named instance of a class
All of the objects attributes are hidden
A program routine contained within an object
190
To change the background colour in CSS to blue is...?
background-color: FF00FF;
background-color: 0000FF;
background-colour: 0000FF;
background-colour: blue;
191
Which of these defines Instantiation?
The process of creating an actual named instance of a class
All of the objects attributes are hidden
A single bit of data within a class
A program routine contained within an object
192
Which of these is not a relationship type?
many to one
Many to many
one to one
few to one
193
Which of these defines encapsulation?
The process of creating an actual named instance of a class
A program routine contained within an object
All of the objects attributes are hidden
A single bit of data within a class
194
Asymmetric encryption.....
Uses a public and private key
Uses a shared key
Uses non-symmetric coding
Codes data
195
When popping data from a stack, you must first....?
Push data onto the stack
Allocate data to the stack
Reorder the stack
Make sure that the stack is not empty
196
The CSS code for a class is...?
infobox{}
You dont get classes in CSS
.infobox{}
Empty choice
197
Subtract these binary numbers 1010000 - 0001111
1000001
1010000
1101001
1011111
198
What is meant by referential integrity?
All references have a key
Reduces data redundancy
All foriegn keys have an associated primary key
Enforces integrity referentially
199
Which of these storage devices uses flash memory?
Hard drive
DVD
SSD
CD ROM
200
Which best describes an imperative language. A high level language.....?
that orders data
that executes each command sequentially
that is concerned with the result not method
in which code can be blocked as procedures & functions
201
Which of these SQL commands removes data?
UPDATE
SELECT
DELETE
INSERT
202
Which of these is NOT a function of an operating system?
Utilities tasks
Access to peripherals
Managing application software
Transfers data
203
Which of these involves the planning game?
RAD
Spiral
Waterfall
Extreme
204
The feasibility document returns the viability of a project using TELOS. What is TELOS?
Technical, economic, legal, operational, scheduling
Timeline, essential, legitimate, organisational, schedule
Transparent, economic, legitimate, operational, scheme
Technical, environment, legislation, operational, timeline
205
If L is 01001100 then what is P
10011010
1010000
1001110
1001101
206
Which of these is NOT a maintenance technique
Adaptive
Perfective
Directive
Corrective
207
What is the World Wide Web?
Linked web pages
The links between data
Interconnected networks
Large programs
208
What is an advantage of server side processing?
Program is running locally, so should be faster
Initial validation is immediate
Data is protected from user interference
Reduces the load on the server
209
Which of these is NOT a feature of parallel processing?
Independent processors work on the same program
Process split into tasks
Efficient processing
Controlled by complex OS
210
Which of these devices is best suited to gathering the answers to a multiple guess exam?
OCR
Digital camera
OMR
Scanner
211
Which of these is not a process state?
Blocked
Ready
Current
Running
212
The HTML code for an numbered list is...?
Empty choice
Empty choice
Empty choice
Empty choice
213
Which of these describes inheritance?
All of the objects attributes are hidden
Specialised overloading, data may be treated diferently
A derived class that shares the attirbutes and methods of the super class
A single bit of data within a class
214
Convert this denary number, 37, to 8 bit binary 2s compliment:
10001110
1110010
100101
11010100
215
What is the output for this circuit? A AND (B OR A)
A AND B
A OR B
1
A
216
Which of these is a low level language?
Assembly
Functional
Opcodes
Procedural
217
A processor that is able to operate on multiple pieces of data SIMULTANEOUSLY is..?
Harvard
Vector
Scalar
Contiguous
218
What is the output for this circuit? A+1
B
0
A
1
219
Interrupts are held in what type of data structure?
Array
Stack
List
Queue
220
Convert this denary number, 15.5, to norm FP, 8 bit man, 4 bit exp 2's comp
1.0001E+11
1001011010
11111000100
10101001110
221
Convert this denary number, -67.5, to norm FP, 10 bit man, 4 bit exp 2s comp:
1.01111E+13
1.1001E+13
1.0101E+12
1.00101E+11
222
What is the output for this circuit? A OR NOT A
1
B
A
0
223
Which of these phases is not associated with the SDLC?
Results
Testing
Development
Analysis
224
Which part of the FDE cycle is when the instruction is performed?
Decode
Fetch
Execute
Combine
225
is...?
Server side processing
All HTML code
Inline CSS
The wrong syntax
226
GPUs are NOT often used for....
Audio processing
Controlling the RAM
Modelling physical systems
Machine learning
227
If a hash function creates a duplicate hash, this is called a...?
Encryption
Salt
Termination
Collision
228
CISC is...
Complex index set computing
single addressing mode
Complex instruction set computing
Computer intergrated systems circuitry
229
Hashing is.....
The process of calculating a numeric value from one or more data items
Adding salt
Scrambling data
Reording data so that it is coded
230
The link layer of the TCP/IP stack...
Allows data to be transmitted over any hardware
Establishes and terminates communication between network entities
Produces data that can be read by end applications
Provided transmission from one router to another
231
After an interrupt...
Check for further interrputs
MDA is reset
Accumulator begins
Registers are dumped
232
Convert -19.5 into normalised fp, using a 8 but man and a 4 bit exp 2's comp
1.011E+11
1.01101E+11
1.00101E+11
11001101001
233
Which of these shows the organisation of the database elements (e.g. tables, queries)?
Logical View
User view
Physical view
Internal View
234
A form of lossless encoding is...?
Colour matching
ADEC 5 coding technique
Run length encoding
Theasuraus encoding
235
White=box testing is...?
Testing undertaken by the software developer
Testing got make sure that the system matches the user requirements
The code is followed to consider all possible outcomes of a system
The code is ignored, functionality is tested
236
Consistency is...?
Takes the database from one constant state to another
Change must be permanent
Change is complete, or not at all
Records must be locked
237
Which part of the FDE cycle is when the type of addressing is identified?
Decode
Execute
Fetch
Combine
238
Common uses of a hash algorithms are:
Storing usernames and passwords
Lossy compression
To code data
For fast access to data
239
Which of these SQL commands chooses data?
SELECT
DELETE
INSERT
UPDATE
240
When removing data from a queue, you must first...?
Make sure that the queue is not empty
Dequeue data
Enqueue data
Make sure that it is a circular queue
241
Utility program that attaches libraries at run time is...
The BIOS
The Loader
The Boot Strap
The linker
242
Which of these shows the interface ("front end")?
User view
Logical View
Physical view
Internal View
243
Isolation is...?
Change must be permanent
Takes the database from one state to another
Change is complete, or not at all
Records must be locked
244
Acceptance testing is...?
The code is followed to consider all possible outcomes of a system
Testing got make sure that the system matches the user requirements
Testing undertaken by the software developer
The code is ignored, functionality is tested
245
Interrupts are stored in...
records
arrays
stacks
queues
246
Which of these is NOT a common protocol?
FTP
HTTP
FIP
SMTP
247
What is not an advantage of a relational database?
data integrity
data consistency
data independence
data redundancy
248
A hash function returns....?
Fixed size data
The address in memory
An encrypted value
The password and username
249
If the number of bits increases from 8 to 16 in the MAR, what is the consequence?
There is faster processing
The chip is better
The number of memory addresses increases
The cache must get bigger
250
Convert this denary number, 0.0625, to norm FP, 8 bit man, 4 bit exp 2s comp:
10010011100
1.00101E+11
1001011010
10000001101
251
What is this binary number in denary 01001001?
73
161
-73
41
252
Beta testing is...?
Testing undertaken by volunteers, not members of the developers
Testing undertaken by the software developer
The code is ignored, functionality is tested
The code is followed to consider all possible outcomes of a system
253
Lossless compression
Always loses data
Never loses data
Is best for sounds
May lose data
254
Which of these is NOT a feature of a co-processor
allows concurrent processing
A large processor
An additional processor
improves speed
255
The most robust form of secondary storage is...?
A flash drive
A CD ROM
The cloud
A hard disk drive
256
Which of these is NOT a valid IP address?
255.255.0.0
192.168.0.1
176.188.23.78
378.89.200.1
257
What are the contents of the MAR?
The data
The address of the next instruction/data
The address of the current instruction
The result of the current instruction
258
Show how a computer calculates 67 - 16
01000011 - 00010000 = 00110011
01000011 + 00010000 = 00110011
01000011 + 11110000 = 00110011
10111101 + 00010000 = 00110011
259
As well as graphics, GPUs are often used for:
Machine learning
To render graphics
Creating data
Uploading websites
260
Convert this denary number, -14, to 8 bit binary 2s compliment:
1110
1010100
1001001
11110010
261
A form of lossless encoding is...?
ADEC 5 coding technique
Colour matching
Run length encoding
Theasauruas encoding
262
Virtual storage is....?
The use of someone else's servers
The use of of site servers to store data
The use of virtual servers
Virtualising your storage
263
Which of these storage devices is magnetic?
CD ROM
Hard drive
DVD
SSD
