stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
AP Computer Science Principles Unit 4 Review: Big Data and Privacy Flashcards | StudBud
Explore
/
AP Computer Science Principles Unit 4 Review: Big Data and Privacy
AP Computer Science Principles Unit 4 Review: Big Data and Privacy
37 terms
·
StudBud Administration
·
2,695 plays
Imported from external platform
Flashcards
37 cards
F
Practice quiz
P
Host live
L
Questions
37
Answers
1
What is 1 mod 16?
1
13
16
11
2
______ is an encryption in which arbitrary symbols replace letters
random tremulation cipher
random substitution cipher
Vignere Cipher
Caesar Cipher
3
_____ is the process of using an algorithm to undo encryption.
Decrypting
Cracking a code
Cipher
Encrypting
4
Which is NOT a feature of Public Key Cryptography
A Public Key database ensures 3rd party accountability of security
guarantees that only the intended recipient can decrypt the message
Allows secure communication without establishing a *shared* encryption key
A key for decrypting is never made public
5
What is 15 mod 10?
15
1.5
5
20
6
What is 52 MOD 32?
1
12
11
20
7
What is the "key" to a Caesar Cipher that someone needs to know (or discover) to decrypt the message?
The day of the month that the encrypted message was sent.
The letter that occurs most often in the encrypted message.
The number of characters to shift each letter in the alphabet.
A secret word only know by Caesar.
8
T/F : Digital certificates are used to verify the ownership of encrypted keys used in secured communication
False
True
9
What is 9 MOD 64?
1
64
0
9
10
_______ is trying to figure out a decryption algorithm for an encrypted message, using clues found in the secret message
Encrypting
Cracking a code
Cipher interaction
Decrypting
11
Which of the following is NOT a characteristic of an ideal encryption scheme.
Easy/fast to encode data
Encoded message is difficult to transmit or communicate
Easy to decode data if you know the key but difficult to crack without it
Decoding returns the exact data that was encoded originally
12
______ is defrauding an online account holder of financial information by posing as a legitimate company.
Cracking a code
Phishing
SSL/TLS
DDoS
13
______ is an encryption that shifts the alphabet differently per character, based on the letters of a keyword
random substitution cipher
random tremulation cipher
Caesar cipher
Vignere Cipher
14
A term for a dataset so large that traditional processing applications are inadequate
Big data
Generous data
Large data
Abundant data
15
This shows the prevelance of some search terms in the United States between 2004 and the present. Which is most accurate
In 2009, red has become the favorite color of more people
A decline in "yellow" as a search might be due to a decline in use of taxis
the volume of internet searches is increasing over time
Generally speaking, since 2009 more people use "red" in their search terms
16
What is metadata?
Data about data, e.g. image size and resolution
A hyperdoc with a database of encryption codes
Data without data, e.g. holonomic equations
A problem that cannot be solved in reasonable amount of time
17
______ is a mathematical operation that returns the remainder in integer division.
Modulation
Public Key
Remainder Theorem
Modulo
18
What is 9 mod 8?
9
8
-1
1
19
When a computer scientist uses the term "Big Data" what do they typically mean?
That a dataset is larger than 5TB which is the common "Big Data" threshold
That there is so much data it's virtually impossible to process.
The findings from the data are potentially hugely important for society.
There is enough data that traditional data processing is inadequate.
20
A process of encoding messages to keep them secret, so only authorized parties can read it
Crackling Encryption
Decryption
Encryption
Cipher
21
What is the most accurate description of what this data is actually showing from Google Trends
There was a sharp increase in the dog population between 2014 and 2015
The popularity of dogs as pets is slightly increasing over time
People like dogs more than cats
People search for "dogs" more frequently than "cats"
22
What is 13 mod 5?
3
6
7
2
23
A computationally hard problem is _____
a problem that cannot be solved in a reasonable amount of time
a problem that uses the Caesar Cipher
a problem that uses phishing techniques
a problem that is alphabetically easy
24
A technique for encryption that shifts the alphabet by some number of characters
Encryption
Random Substitution Cipher
Cipher
Caesar's Cipher
25
A Distributed Denial of Service (DDoS) attack is an attempt to __________?
compromise a target by flooding it with requests from multiple servers
focus of all systems on catching a user or computer w/illegal access
harass or extort all customers of Internet Service Providers (ISPs)
coordinate efforts to gain entry to foreign government data
26
Why is the Vigenere cipher hard to crack? (2 possible correct answers)
The key is always secret to both the sender and receiver of the message.
A Vigenere cipher relies upon an "alphabet shift" algorithm.
One cannot solve using frequency analysis directly.
The key length is variable and potentially very long
27
Which is least true about personal data technology companies can collect about their users?
Personal data may be permanently saved by companies
By law companies must give users options about personal data
Companies offer free services in exchange for access to their data
Companies can sell personal data to advertising companies
28
The Caesar Cipher has 25 different shifts to try. How many possibilities are there in a random substitution cipher?
26 x 25 x 24 x***x 3 x 2 x 1
26
26 x 25
26^26
29
Historically it has been observed that computer processing speeds tend to double every two years. This is known as:
Powers of 2 Principle
The "Big Data Effect"
Moore's Law
Boolean's Conjecture
30
______ is the scheme in which the key to encrypt data is different from the key to decrypt.
Scalene Key Encryption
Asymmetric Encryption
Vignere Cipher
Private Key encryption
31
Public key encryption _____________
relies on separate keys for encrypting and decryption
uses certain types of problems which are easier for humans to solve
uses mathematical problems which no algorithm can be used to solve
has a single shared key used by both the sender and receiver
32
______ is a method of encryption involving one key for both encryption and decryption.
isoscylese encryption
asymmetric encryption
scalene encryption
symmetric encryption
33
The generic term for a technique (or algorithm) that performs encryption
Caesar's Cipher
Decryption
Cipher
Encryption
34
T\F: A subtitution cipher is a secure way to send your password over the Internet (hint: remember frequency analysis)
True
False
35
Choose the
most accurate
completion to the statement. "Search trends are _________"
imperfect predictors of future events that fully represent society
imperfect predictors of future events that may not fully represent society
accurate& reliable predictors of future events that fully represent society
accurate& reliable predictors of future events that don't represent society
36
A business/coroporate term for a one-page document that summarizes a large issue, topic, or plan:
One-pager
Two-pager
Business plan
Document
37
T/F : Digital certificates are used to verify that the connection to a Web site is fault tolerant.
True
False
