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Cybersecurity Essentials: Chapter 4 Review Flashcards | StudBud
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Cybersecurity Essentials: Chapter 4 Review
Cybersecurity Essentials: Chapter 4 Review
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The Quiz! Review for Chapter 4 of Cybersecurity Essentials, The Art of Protecting Secrets
Flashcards
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Questions
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Answers
1
True or False: The Caesar cipher is a strong form of encryption.
FALSE
TRUE
2
Which access control strategy uses access controls lists (ACLs) to grant or restrict access?
Role-Based Access Control
Mandatory Access Control
Rule-Based Access Control
Discretionary Access Control
3
Which part of key management ensures that keys are saved in a secure way?
Key Lifetime
Key Verification
Key Exchange
Key Storage
4
Which asymmetric algorithm uses the government standard for digital signatures?
Elliptic Curve Cryptography (ECC)
Rivest-Shamir-Adleman (RSA)
ElGamal
Diffie-Hellman (DH)
5
What is the name for inserting a secret message into a program as proof of ownership?
Software Obfuscation
Data Masking
Steganography
Software Watermarking
6
What type of technology replaces sensitive information with a non-sensitive version?
Hidden
Software Watermarking
Data Masking
Spyware
7
Which type of encryption algorithm should be used for key exchanges?
Asymmetric
Symmetric
DES
RSA
8
Which encryption algorithm is used to protect user files and system data with passwords?
AES
A5
DES
3DES
9
Which access control strategy restricts actions that a subject can perform on an object?
Discretionary Access Control
Mandatory Access Control
Rule-Based Access Control
Role-Based Access Control
10
Which access control strategy restricts users based on clearance levels?
Discretionary Access Control
Mandatory Access Control
Rule-Based Access Control
Role-Based Access Control
11
What is the process of changing ciphertext back into plaintext?
Decryption
Hacking
Unobscuration
Encryption
12
What type of algorithm uses a public key for encryption and a private key for decryption?
Public-Key
Private-Key
Asymmetric
Symmetric
13
Which of the following terms describes the number of possible keys for a specific key length?
Key changes
Keyspace
Key probabilities
Key options
14
Which type of security controls provide options to other controls to strengthen their use?
Corrective Security Controls
Preventive Security Controls
Compensative Security Controls
Deterrent Security Controls
15
What type of cipher transforms a fixed length of plaintext into a common block of ciphertext?
3DES
A5
Block Ciphers
Stream Ciphers
16
What type of algorithm uses the same pre-shared key for encryption and decryption?
Public-Key
Symmetric
Asymmetric
Private-Key
17
What is the formal name for readable data when discussing encryption?
Cleartext
Unchanged text
Easytext
Plaintext
18
Which data masking technique replaces data with authentic looking values?
Shuffling
Substitution
Transposition
Nulling Out
19
Which access control strategy grants or restricts object access based on the object's owner?
Discretionary Access Control
Mandatory Access Control
Rule-Based Access Control
Role-Based Access Control
20
Which data masking technique derives a substitution set from the same column of data?
Transposition
Substitution
Shuffling
Nulling Out
21
What is the name for the most common approach to embed data in a cover image?
Pictocryption
Least Significant Bits (LSB)
Pixelography
Most Significant Bits (MSB)
22
Which algorithm is simpler and requires less computational power?
Symmetric
Asymmetric
23
Which block cipher algorithm is used by the US government to protect classified information?
Data Encryption Standard (DES)
Advanced Encryption Standard (AES)
Triple DES (3DES)
International Data Encryption Algorithm (IDEA)
24
What is the art of making a message confusing, ambiguous, or harder to understand?
Data Masking
Encryption
Steganography
Obfuscation
25
What type of cipher transforms plaintext one byte or one bit at a time?
Block Ciphers
Stream Ciphers
DES
A5
26
Which type of encryption algorithm has more secure key management procedures?
Asymmetric
DES
RSA
Symmetric
27
Which asymmetric algorithm uses the product of two very large prime numbers?
Rivest-Shamir-Adleman (RSA)
Elliptic Curve Cryptography (ECC)
Diffie-Hellman (DH)
ElGamal
28
What is the name for taking two sets of the alphabet and shifting a set to encrypt a message?
Scytale
Vignere cipher
Caesar cipher
Enigma Machine
29
What program uses the International Data Encryption Algorithm (IDEA)?
GNU Privacy Guard (GPG)
Zenmap
Pretty Good Privacy (PGP)
Wireshark
30
Which of the following terms describes the size of a key in bits?
Keyspace
Key Measure
Key Stretch
Key length
31
Which type of encryption algorithm is more efficient and can handle more data?
Asymmetric
Symmetric
RSA
DES
32
What is a disadvantage of symmetric algorithms?
You need a new key for each person you communicate with
It is slower than asymmetric algorithms
It requires you to protect the algorithm instead of the keys
It can only encrypt small amounts of data
33
Which type of security controls restore systems to normal after unauthorized activity occurs?
Deterrent Security Controls
Compensative Security Controls
Corrective Security Controls
Recovery Security Controls
34
What is NOT a common example of a symmetric encryption algorithm?
Triple DES (3DES)
Advanced Encryption Standard (AES)
Diffie-Hellman (DH)
International Data Encryption Algorithm (IDEA)
35
Which type of security controls repair damage and stop any further damage from happening?
Corrective Security Controls
Recovery Security Controls
Compensative Security Controls
Deterrent Security Controls
36
Which part of the cyptographic process is typically attacked by criminals?
The algorithm
The user
The message
The key management system
37
Which type of security controls discourage criminals from gaining unauthorized access?
Recovery Security Controls
Preventive Security Controls
Corrective Security Controls
Deterrent Security Controls
38
Which data masking technique applies a null value to a particular field?
Shuffling
Substitution
Transposition
Nulling Out
39
Which asymmetric algorithm uses elliptic curves and is used by the NSA?
Rivest-Shamir-Adleman (RSA)
Diffie-Hellman (DH)
ElGamal
Elliptic Curve Cryptography (ECC)
40
What type of policy defines authorization based on an employee's standing in the company?
Authority Level Policy
Group Membership Policy
Job Membership Policy
Role-based Policy
41
What is the name for when letters are replaced in an encryption algorithm?
Transposition
Substitution
Shuffling
One-Time Pad
42
What type of policy defines authorization based on membership in a specific group?
Authority Level Policy
Group Membership Policy
Job Membership Policy
Role-based Policy
43
What type of access controls relate to personnel and business practices?
Administrative Access Controls
Deterrent Access Controls
Physical Access Controls
Logical Access Controls
44
Which aspect of key management ensures that keys can be shared in a secure way?
Key Storage
Key Verification
Key Lifetime
Key Exchange
45
Which aspect of key management discusses how long a key is useful for?
Key Lifetime
Key Verification
Key Storage
Key Revocation and Destruction
46
What is the name for the science of making and breaking secret codes?
Cryptology
Codology
Obscurology
Secrology
47
What is the name for the algorithm an encryption method uses?
RSA
Hider
Scrambler
Cipher
48
What is NOT an example of a physical access control?
Security Cameras
Guard Dogs
Fences
Routers
49
Which process in key management identifies and regenerates weak keys?
Key Generation
Key Storage
Key Exchange
Key Verification
50
Which aspect of key management notifies users that a key is no longer able to be used?
Key Lifetime
Key Revocation
Key Destruction
Key Verification
51
What is a device or app that uses cryptography to generate a one-time password?
One-Time Password-Generating Token
Swipe Card
One-Time Pad
Security Key Fob
52
Which type of biometric identifiers relate to physical features?
Location characteristics
Genetic characteristics
Behavioural characterisitics
Physiological characteristics
53
What type of access controls are actual barriers put in place to prevent access to systems?
Deterrent Access Controls
Administrative Access Controls
Logical Access Controls
Physical Access Controls
54
Which type of biometric identifiers relate to the way a user acts or does things?
Location characteristics
Genetic characteristics
Physiological characteristics
Behavioural characterisitics
55
Which of the following is used to encrypt and decrypt messages?
Username
PII
Key
Cipher
56
What is the name for a file that has a hidden message embedded in it?
Stego-file
Privacy Packet
Cover-file
Secrenvelope
57
What is the process of hiding data in a graphic, audio, or other text file?
Obfuscation
Encryption
Masking
Steganography
58
What is NOT an example of an administrative access control?
Guards
Data Classification
Hiring Practices
Policies and Procedures
59
What type of authentication method would a one-time passcode be?
Something you do
Something you know
Something you have
Something you are
60
What is the discovery that hidden data exists in a specific medium?
Software Watermarking
Data Masking
Steganalysis
Steganography
61
What is an example of a block cipher algorithm?
RSA
ElGamal
DES
A5
62
What is an example of a stream cipher algorithm?
Elliptic Curve Cryptography
Blowfish
A5
3DES
63
What is the process of scrambling data so that an unauthorized party cannot read it easily?
Decryption
Obscuration
Secret Agent Work
Encryption
64
What term means using two or more ways to authenticate a user?
Leveled Authentication
Multiple Authentications
Several Step Authentication
Multi-factor Authentication
65
Which process in key management requires the use of good random number generators?
Key Revocation and Destruction
Key Lifetime
Key Generation
Key Verification
66
What type of authentication method would a swipe card be?
Something you are
Something you have
Something you do
Something you know
67
Which type of security controls stop unwanted or unauthorized activity from happening?
Compensative Security Controls
Deterrent Security Controls
Preventive Security Controls
Detective Security Controls
68
What type of authentication method would an eye scan be?
Something you know
Something you have
Something you are
Something you do
69
Which access control strategy grants or restricts access based on the subject's job functions?
Role-Based Access Control
Rule-Based Access Control
Mandatory Access Control
Discretionary Access Control
70
Which of the following is NOT a protocol that uses asymmetric encryption?
Secure File Transfer Protocol (SFTP)
Pretty Good Privacy (PGP)
Secure Shell (SSH)
Secure Sockets Layer (SSL)
71
Which AAA service identifies who is allowed to use services and systems in a company?
Authentication
Accounting
Authorization
Accessibility
72
What changes software into a similar version to the original, but makes it harder to analyze?
Data Masking
Software Obfuscation
Software Watermarking
Steganography
73
Which aspect of key management ensures that keys cannot ever be recovered?
Key Revocation
Key Verification
Key Destruction
Key Storage
74
Which type of security controls allow attacks and threats to be caught as they occur?
Compensative Security Controls
Recovery Security Controls
Detective Security Controls
Preventive Security Controls
75
What is the formal name for encrypted data when discussing encryption?
Ciphertext
Obscured text
Hidden text
Encrypted text
76
What type of access controls are hardware and software solutions to manage access?
Deterrent Access Controls
Logical Access Controls
Physical Access Controls
Administrative Access Controls
77
What is a way to store and transmit data so only the intended receiver can read or process it?
Cryptography
Codography
Secrography
Obscurography
78
What is hiding info by creating a message that can be read correctly by certain people called?
Data Masking
Social Steganography
Software Obfuscation
Steganography
79
Which asymmetric algorithm provides a secure way to exchange secret keys?
Elliptic Curve Cryptography (ECC)
Rivest-Shamir-Adleman (RSA)
Diffie-Hellman (DH)
ElGamal
80
Which of the following two options is the more secure way to protect a cryptographic system?
Protect the Keys
Protect the Algorithm
81
Which AAA service controls what a user can and cannot do on the network?
Accounting
Authorization
Accessibility
Authentication
82
What is the name for when letters are rearranged in an encryption algorithm?
One-Time Pad
Substitution
Nulling Out
Transposition
83
Which encryption algorithm is used for most encrypting file systems, such as NTFS?
A5
AES
DES
3DES
84
Which AAA service traces actions to a person or process that has done something on the system?
Accounting
Accessibility
Authorization
Authentication
85
What is NOT an example of a logical access control?
Swipe Cards
Biometrics
Encryption
Firewalls
86
Which encryption algorithm is used by the electronic payment industry?
DES
AES
3DES
A5
87
What is the name for when plaintext is combined with a secret key to create a new character?
Transposition
One-Time Pad
Masking
Substitution
88
What is the name for the file where a hidden message will be inserted?
Stego-file
Cover-file
Packet
Envelope
