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Digital Solutions QCAA External Exam #1 Flashcards | StudBud
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Digital Solutions QCAA External Exam #1
Digital Solutions QCAA External Exam #1
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QCAA
Flashcards
30 cards
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Questions
30
Answers
1
This is a
Gronsfeld Cipher
Caesar shift
Vigenère cipher
One-Time Pad
2
Familiar icons can help with
safety
utility
accessibility
learnability
3
The ordinal for A is
"A"
65
97
"a"
4
What is an API?
An SQL query
A JSON file
An interface or access point that exposes an apps functionality or data
An XML file
5
Symmetric encryption
Uses two keys - one public, one private
Uses the same key to encrypt and decrypt
Is what AES / DES is
Utilizes a block cipher
6
What is
not
shown?
An integer value
An array
An end tag
A key
7
More classical symmetric encryption algorithms include
One-Time Pad
Vigenère cipher
Caesar Shift
Gronsfeld Cipher
8
This is a
One-Time Pad
Caesar shift
Vigenère cipher
Gronsfeld Cipher
9
What format is this file?
XML
PY
CSV
JSON
10
What format is this file?
XML
CSV
PY
JSON
11
The character for 97 is
"a"
65
"A"
97
12
Latency is
better quality of service as it increases
ping or ping rate
the amount of delay (milliseconds) between a user action and result
fluctuation or variance of ping spikes over time
13
Transmission Control Protocol
guarantees a reliable communication channel over anunreliable network
is quicker than UDP
does not contain error checking unlike UDP
does not handle retransmission of dropped or garbled packets
14
What is not a characteristic of XML?
Tag
Array
Element tree
Attribute
15
The Unicode Standard provides
data types - integer, string, Boolean
modularization
useability principles
a unique number for every character
16
HTTP vs HTTPS
TLS uses both asymmetric and symmetric encryption
Ports typically are HTTP:80 HTTPS:443
HTTPS: encryption layer provided by TLS (formerly SSL) at transport layer
Are both application protocols for transferring hypermedia
17
This is a
Vigenère cipher
One-Time Pad
Gronsfeld Cipher
Caesar shift
18
Responsive web design can address issues with
utility
learnability
safety
accessibility
19
This is a
asymmetric cipher
polyalphabetic cipher
substitution cipher
feistel cipher
20
This is a diagram of
hashing
block cipher
salt
asymmetric encryption
21
Jitter is
can result in packet loss
caused by queuing, buffer fail, processing loads, and competing traffic
variation of latency over time
protected against with buffering
22
IP
only contains recipient IP address
attaches address information to every packet of data sent
stands for Internet Plan
stands for Intelligent Protocol
23
Hashing
uses a symmetric key
can append a salt so that the same password will create a different hash
is a one-way cryptographic algorithm that can't be decoded
produces a fixed length digest known as a hashsum or checksum
24
This is a
Gronsfeld Cipher
Vigenère cipher
One-Time Pad
Caesar shift
25
Which of these is
not
a characteristic of REST architecture?
Stateless operations
Token or key authentication
Uniform interface
SOAP protocol
26
AES is
key length can be 128, 192, or 256 bits
uses a Feistel cipher / network
weaker and older than DES
Asymmetric
27
Encryption should
Always be used instead of hashing, even for passwords
Keep messages confidential from unauthorized users
Take a long time to decrypt, even with an authentic key
Use easily recognizable patterns when encrypting
28
:"Asymmetric encryption algorithms"
doesn't
include:
DSA
two keys - one to encrypt, one to decrypt
blowfish and twofish
RSA
29
https://api.sick.school.com/im_sick_today/student?id=99
Looks stateless and uniform
Contains an API key
Does not use an encrypted connection
Likely uses a session variable
30
Asymmetric encryption keys are
MD5, SHA-1 or SHA-2
public to encrypt, private to decrypt
not mathematically linked
public to decrypt, private to encrypt
