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FULL REVISION
FULL REVISION
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REVISION GRADE 12
Flashcards
100 cards
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Practice quiz
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Questions
100
Answers
1
PAGING MANAGES MEMORY SPACE BY
DIVIDING MEMORY INTO EQUALLY DIFFERENT SIZED PAGES
DIVIDING MEMORY INTO DIFFERENT SIZED PAGES
DIVIDING MEMORY INTO FIXED SIZE PAGES
DIVIDING MEMORY INTO FIXED SIZE SCHEDULES
2
Larger cost as an integrated circuit is used
RISC
CISC
3
Tasks may take a number of clock cycles
CISC
RISC
4
Paging is a method of writing data to, and reading it from, secondary storage.
True
False
5
Routers operate at which layer of the OSI model?
Physical
Application
Network
Data Link
6
Simple processor design is used
RISC
CISC
7
A virtual machine sprawl is occurs with the continuous deployment of virtual machines and drains its resources?
True
False
8
Pages are all identical sizes
False
True
9
If you were required to communicate urgent information, what OS system would be the quickest?
Networking
Real time
Batch
Time sharing
10
Bits are packaged into frames on which layer?
Network
Data Link
Physical
Transport
11
Which of the buses only transmits FROM the CPU and to the Memory and I/O controller?
Control Bus
Address Bus
Data Bus
12
Which of these buses is UNI-DIRECTIONAL?
Address Bus
Data Bus
Mega Bus
Control Bus
13
What is a difference between internet and intranet?
both of them depends on the internet
intranet is consist of internet
they are the same
intranet is for a small area, internet is for a large area
14
The World Wide Web (WWW) ...
Provides transport links for the information to be passed
A network of networks- all the computers
An application that runs on the Internet
15
___ addresses are programmed into the NIC.
IP
MAC
Frames
16
What is Intranet
A secret collection of webpages
The place where all teachers documents are kept
A private network
17
How can you tell this is a normalised value?
Last two bits of exponent are different
First two bits of mantissa are different
First two bits of exponent are different
Last two bits of mantissa are different
18
What is Virtual Memory?
A type of RAM.
A type of chip.
A space on the HDD.
A space on the Cache.
19
WHICH REGISTER HOLDS THE INSTRUCTION/DATA FETCHED FROM MEMORY
MAR
ACCUMULATOR
MDR
CIR
20
What is this binary floating point number with a 4 bit mantissa & 3 bit exponent: 0110 010
0.0325
6
3
1.5
21
Makes use of a single register set
RISC
CISC
22
WHEN RAM IS INSUFFICIENT
MEMORY IS SPLIT INTO PAGES
PAGES ARE MOVED IN TO SECONDARY STORAGE
MORE RAM IS USED TO ADD MORE PAGES
DISKS ARE SWAPPED INTO PRIMARY MEMORY
23
What the order of the first 4 OSI model layers?
Physical, Application, Data Link, Network.
Application, Presentation, Session, Transport.
Network, Transport, Session, Presentation,
Physical, Data Link, Network, Transport.
24
Which is a disadvantage of packet switching?
Packets can take time to create
They get jumbled up when they arrive
Packets can get lost
It is not suitable for the internet
25
Which addresses are known as link addresses?
Specific Address
Physical Address
Logical Address
Port Address
26
In the following, which are examples of Real-Time OSes?
Flight booking System
Database querying
Aircraft control
Heart rate monitor
27
This kind of operating system is optimised for running jobs
without
user interaction.
Batch
Real-time
Interactive
Distributed
28
What does VoIP (Internet service) stand for?
Voice open Internet Providers
Voice open Internet Protocol
Voice over Internet Protocol
Voice over Internet Practices
29
The ________ Layer is responsible for Translation, Compression and Encryption.
Session
Presentation
Physical
Application
30
WHICH REGISTER HOLDS THE ADDRESS OF THE NEXT INSTRUCTION TO BE FETCHED FROM MAIN MEMORY
ACCUMULATOR
MDR
MAR
CIR
31
Packet switching is suited to telephone communications
False
True
32
What is a difference between internet and intranet?
there is no correct answer
information sensitive in the intranet than www
they together depends on the internet
they are the same
33
WHICH OF THESE IS A MEMORY MANAGEMENT TECHNIQUE?
PAGING SEGMENTS
SEGMENTED PAGES
SEGNENTATION
SEGMENTATION
34
The denary value of the twos complement binary representation 1101
-13
13
-3
-2
35
Packets travel the same route?
False
True
36
Each instruction performs a single task
RISC
CISC
37
In batch processing what are grouped into batches?
Tasks
Operators
Jobs
Programs
38
Which of the following operate at the presentation layer?
TCP
IP
MAC
MP3
39
Batch, time sharing, networked and real time are all types of what?
Read-Only Memory (ROM)
Central processing Units (CPU)
Operating Systems (OS)
Random Access Memory (RAM)
40
Segmentation is involved with loading programs into memory.
he programs do not need to be loaded at once
The programs need to be loaded at once
41
Operating system located on the physical machine is known as a Host Operating System
False
True
42
Router operates on __________ layer.
Data Link
Physical
Network
Transport
43
Circuit Switching the telephone line is used up for the whole time.
True
False
44
Pages are smaller than segments?
True
False
45
What is the hex value of the denary number 54
7A
54
ED
36
46
Which representation is NOT a normalised floating point number.
1011 010
0011 100
0111 100
1000 001
47
In a situation were there was little computer access, Which type of OS would be best suited?
Networking
Batch
Real time
Time sharing
48
Both mantissa and exponent are in two's complement. Which statement is true about this number?
It is NOT normalised
It is the largest possible value
It represents a positive number
It represents a negative number
49
Complex instructions which may take multiple cycles
RISC
CISC
50
Where are cables located on the OSI Model?
Network
Transport
Data Link
Physical
51
The ________ Layer is responsible for providing Services to Users.
Application
Physical
Session
Presentation
52
Cables, hubs, and electrical signals operate at which layer of the OSI model?
Transport Layer
Network Layer
Data-Link Layer
Physical Layer
53
What problems may occur from paging and segmentation
segments are logical divisions, pages are physical divisions
компьютер может ‘зависнуть’
disk threshing
more time spent swapping pages than processing
54
A limited number of instructions are available
RISC
CISC
55
IP addresses are also known as _____ addresses.
Phyiscal
Packets
Logical
Frames
56
Microsoft version of a virtualization machine is known as Hyper-V?
True
False
57
Which of the following are Application layer protocols?
DHCP
All of these
DNS
FTP
58
Segmenting and paging are not similar techniques.
True
False
59
Which is an advantage of packet switching?
Different sizes can be used
Looking up an IP address
A route with less traffic can be used
Communication at all times
60
Memory management system that takes advantage of paging because...
They are sorted in specificed order to allocate memory.
because they are numbered in order of the sequence
OS reads data from secondary storage in blocks called pages
61
Where is a JPEG located on the OSI Model?
Presentation
Session
Transport
Application
62
The 4 bit unsigned binary representation of 13
1100
1001
1011
1101
63
Many instructions are available
CISC
RISC
64
Position of
CHINA
A
D
B
C
65
Pages do not need to be contiguous - They could be in a different part of memory?
False
True
66
What does: 0.1000 0011 represent?
4
-8
2
8
67
Which layer deals with MAC addresses?
Network
Transport
Session
Data Link
68
Many addressing modes are available
CISC
RISC
69
Which layer is responsible for packet sequencing and requests for re-transmission?
Application
Data Link
Transport
Session
70
Hub operates on __________ layer.
Physical
Data Link
Transport
Network
71
WHICH OF THESE IS NOT A COMPONENT OF THE CPU
ARITHMETIC LOGIC UNIT
CONTROL UNIT
PROGRAM COUNTER
72
Choose all statements that are correct relating to Memory management
Secondary memory holds data which is currently being used
Memory manager is a part of the OS
The two main types of memory are primary and secondary
Primary is physically made up of Random Access Memory (RAM)
73
The
preorder
traversal of a
given binary search tree
is
10, 4, 3, 5, 11, 12.
True
False
74
Programs run faster due to more simple instructions
RISC
CISC
75
The higher the bandwidth...
the quicker the data will flow along the line
The higher the chance of your web page not loading
76
Virtual memory maps memory addresses used by a program called virtual addresses. It then....
Stores the address in the OS
Turns it into physical addresses in computer memory
Sends the address to all networked computers
Makes the address virtual for everyone to use
77
Which is an advantage of circuit switching?
Communication channel is maintained throughout
Efficient data transfer
I can listen to other people's conversations
Easy to set up
78
Complex tasks performed combining a number of instructions
CISC
RISC
79
_____ addresses are also known as physical addresses.
IP
Frame
MAC
80
AB v AB v AC can be simplified to:
AB v AC
A (BvC)
ABC
BC
81
Virtual machine
is a software application run by the host OS of a computer that simulates
Operating system located on the physical machine
82
What is memory management?
Memory is as memory does
Memory is limited so needs managing
Memory is infinate, but needs order
83
WHICH REGISTER HOLDS THE RESULTS OF CALCULATIONS PERFORMED BY THE ALU?
ACCUMULATOR
MDR
CIR
MAR
84
What type of network is this?
Circuit
Packet
85
Which of the following is
not
a role of an operating system?
I/O Interface
CPU Management
Graphics Library
Memory Management
86
At what layer does Encryption occur?
Transport
Presentation
Application
Session
87
SEGMENTATION DIVIDES MEMORY SPACE IN
DIFFERING SIZE SEGMENTS
CHOCOLATE ORANGE SEGMENTS
EQUALLY SIZED SEGMENTS
VIRTUAL MEMORY
88
What are the last 4 layers of the OSI Model?
Data Link, Network, Transport, Session.
Session, Transport, Application, Physical.
Transport, Session, Presentation, Application.
Physical, Data Link, Network, Transport.
89
WHICH OF THESE BUSES CARRIES THE DATA FROM MAIN MEMORY BACK TO THE CPU
DATA BUS
SOUTHPORT BUS
CONTROL BUS
ADDRESS BUS
90
What is the overall purpose of an OS
To manages the hardware and software
To decode
To act as a key inputting device
To provide long term memory access
91
What is a difference between internet and intranet?
number of users limited and unlimited
both of them not secuire
thay are the same
both of them depends on the www
92
Which of the buses carries instructions
Control Bus
Address Bus
Data Bus
93
Switches operate on which layer?
Transport
Network
Physical
Data Link
94
Programs may run slow due to complicated instructions
RISC
CISC
95
Hypervisor (VMM) specific software that handles the responsibilities of running a virtual machine
False
True
96
What is not a function of the Application layer?
Email
FTP
Telnet
Windowing
97
Segments are not variable in size
False
True
98
Each packet is given a number to show the order.
True
False
99
True or False: Virtual memory makes use of secondary storage
False
True
100
The ________ is responsible for movements of individual bits from one hop (node) to the next.
Presentation
Physical
Session
Application
