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Digital Solutions External Exam #3 Flashcards | StudBud
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Digital Solutions External Exam #3
Digital Solutions External Exam #3
26 terms
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StudBud Administration
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Unit 4: Digital Impacts
Flashcards
26 cards
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Practice quiz
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Questions
26
Answers
1
Select the factors that can influence
latency
Queueing of data - depending on how data buffers perform, busy times, etc.
Propogation - the many paths around the internet data can take
Switching - time for switch / router read and redirecting data packets
Size and speed of data packet Serialisation onto the network
2
Vigenère cipher is polyalphabetic
True
False
3
SELECT Name FROM Student WHERE Marks > ( SELECT AVG(Marks) FROM Student )
Ariana, Alizeh
Eilish, Ariana
Billie, Eilish
Billie, Alizeh
4
Caeser cipher is polyalphabetic
False
True
5
Jitter is
A one way trip from client to server (also known as ping)
The delay in arrival of a packet from its source to destination (lag)
Inconsistency or fluctuations in latency over time
The time taken for a round trip of a packet data from client to server
6
The image shows an example of
Assignment
Input
Modularisation
Variables
7
Ethics applicable to the use of personally identifiable or sensitive data from a digital systems perspective is known as
Disability Discrimination Act
Copyright Infringement
Australian Privacy Principles
Intellectual Property
8
Which cipher is the most difficult to "crack"
One-time pad
Caeser
Gronsfeld
Vigenère
9
Ability of the system to provide all the functionality that users need
Safety
Utility
Effectiveness (includes reliability)
Accessibility or Learnability
10
What types of loops are pictured?
Branching
Pre-test
Post-test
Counted
11
SELECT Address, COUNT(Marks) FROM Student GROUP BY Address HAVING MIN(Marks) < 200
London 2, Maldives 1
London 2, Maldives 1, Miami 1
Maldives 1, Miami 1
London 2, Miami 1
12
The image shows an example of
Selection
Output
Iterations (Loops)
Arrays (Lists)
13
Quality of Service (QoS) is a set of technologies that work on a network to guarantee:
"differentiated" service: some traffic is treated better than other traffic
some bandwidth is reserved for use only by mission-critical applications
full bandwidth all of the time for everyone, with no preferential treatment
High-bandwidth, real-time applications (e.g. video calls) can still run
14
Does a system satisfactorily
perform the task
for which it is designed or intended (consistently without failure)
Security
Learnability
Reliability
Accessibility
15
Select the TRUE statements about the RSA encryption algorithm:
Asymmetric encryption
Public key to encrypt, private key to decrypt
Keys are different to each other but mathematically related
Commonly used in TLS to deliver HTTPS
16
Maximum productivity with the least / minimal consumption of system resources.
Maintainability
Efficiency
Sustainability
Reliability
17
Symmetric encryption uses the same key to encrypt and decrypt
True
False
18
DES provides weak encryption, due it its small key size (64 bits)
False
True
19
Select the TRUE statements about a Feistel cipher
A symmetric structure used in the construction of block ciphers
A Feistel cipher is also commonly referred to as a Feistel network
Consists of multiple rounds of substitution and permutation (using XOR)
Used (with modifications) in DES, Triple DES, Blowfish and Twofish
20
Which of these is NOT an
element
and
principle
of
visual communication
Balance, contrast, proximity and alignment
Space, point, colour, proportion and scale
Line, shape, texture and tone
Utility, learnability, accessibility and effectiveness
21
SELECT Name, MAX(Marks) FROM Student WHERE Marks >= 185 GROUP BY Address
Billie 220, Eilish 190, Ariana 180, Alizeh 210
Billie 220, Alizeh 210
Billie 220
Billie 220, Eilish 190, Alizeh 210
22
SELECT * FROM Student WHERE Marks > 200
4 records in result
3 records in result
2 records in result
1 record in result
23
Problems with the
ease and speed
at which a system can
maintain operational status
, especially after fault or repair.
Security
Accuracy
Maintainability
Efficiency
24
Gronsfeld cipher is like a Vigenère cipher, except that the
key
is given as a
number
, and not a
word
.
False
True
25
SELECT AVG(Marks) FROM Student
4 records in result
220.0
180.0
200.0
26
Logical threats to
keeping accurate data
records
Utility
Sustainability
Accuracy
Reliability