Question 1

When you use the word ______it means you are protecting your data from getting disclosed.
A)confidentiality
B)integrity
C)authentication
D)availability

Accepted Answer

Confidentiality refers to the protection of information from being accessed by unauthorized parties, ensuring that the data is kept secret and only accessible to those who are supposed to have access to it.

Question 2

_______ means the protection of data from modification by unknown users.
A)confidentiality
B)integrity
C)authentication
D)non-repudiation

Accepted Answer

Integrity refers to the assurance that data cannot be modified in an unauthorized or undetected manner, ensuring that information remains accurate and unaltered by unauthorized users.

Question 3

_______ of information means, only authorized users are capable of accessing the information.
A)confidentiality
B)integrity
C)non-repudiation
D)availability

Accepted Answer

D

Question 4

This helps in identifying the origin of information and authentic user. This referred to here as __________
A)confidentiality
B)integrity
C)authenticity
D)availability

Accepted Answer

Authenticity refers to the process of confirming the origin of information and verifying that users are who they claim to be, ensuring that the data and communications are genuine.

Question 5

Data ___________ is used to ensure confidentiality.
A)encryption
B)locking
C)decryption
D)backup

Accepted Answer

Data encryption is the process of converting data into a code to prevent unauthorized access, thus ensuring confidentiality.

Question 6

What does OSI stand for in the OSI Security Architecure?
A)open system interface
B)open systems interconnections
C)open source initiative
D)open standard interconnections

Accepted Answer

OSI in the OSI Security Architecture stands for Open Systems Interconnections, which is a conceptual framework used to understand and standardize the functions of a telecommunication or computing system without regard to its underlying internal structure and technology.

Question 7

A company requires its users to change passwords every month. This improves the ________ of the network.
A)performance
B)reliability
C)security
D)none of the above

Accepted Answer

Requiring users to change passwords regularly is a security measure designed to protect against unauthorized access and potential breaches, thus improving the network's security.

Question 8

The ________ is encrypted text.
A)cipher scricpt
B)cipher text
C)secret text
D)secret script

Accepted Answer

Cipher text is the correct term for encrypted text. It refers to the output of the encryption process, where plaintext is converted into a scrambled format to protect the information from unauthorized access.

Question 9

What type of attack uses a fraudulent server with a relay address?
A)ntlm
B)mitm
C)netbios
D)smb

Accepted Answer

A Man-in-the-Middle (MitM) attack involves an attacker secretly relaying and possibly altering the communication between two parties who believe they are directly communicating with each other. This type of attack can involve the use of a fraudulent server to intercept or relay messages.

Question 10

Which is the largest disadvantage of the symmetric Encryption?
A)more complex and therefore more time-consuming calculations.
B)problem of the secure transmission of the secret key.
C)less secure encryption function.
D)isn	 used any more.

Accepted Answer

The primary disadvantage of symmetric encryption is the problem of securely transmitting the secret key to the recipient. If the key is intercepted, the encryption can be compromised.

Question 11

In cryptography, what is cipher?
A)algorithm for performing encryption and decryption
B)encrypted message
C)both algorithm for performing encryption and decryption and encrypted message
D)decrypted message

Accepted Answer

A cipher is an algorithm used for performing encryption and decryption.

Question 12

In asymmetric key cryptography, the private key is kept by __________
A)sender
B)receiver
C)sender and receiver
D)all the connected devices to the network

Accepted Answer

In asymmetric key cryptography, the private key is kept by the receiver to decrypt messages that have been encrypted with the corresponding public key.

Question 13

Which one of the following algorithm is not used in asymmetric-key cryptography?
A)rsa algorithm
B)diffie-hellman algorithm
C)electronic code book algorithm
D)dsa algorithm

Accepted Answer

Electronic Code Book (ECB) algorithm is a mode of operation for a block cipher, used in symmetric-key cryptography, not in asymmetric-key cryptography. RSA, Diffie-Hellman, and DSA are all used in asymmetric cryptography.

Question 14

In cryptography, the order of the letters in a message is rearranged by __________
A)transpositional ciphers
B)substitution ciphers
C)both transpositional ciphers and substitution ciphers
D)quadratic ciphers

Accepted Answer

Transpositional ciphers work by rearranging the order of the letters in a message, unlike substitution ciphers, which replace each letter with another letter or symbol.

Question 15

What is data encryption standard (DES)?
A)block cipher
B)stream cipher
C)bit cipher
D)byte cipher

Accepted Answer

DES is a block cipher, meaning it encrypts data in blocks (typically of 64 bits) rather than one bit or byte at a time.

Question 16

A asymmetric-key (or public key ) cipher uses
A)1 key
B)2 key
C)3 key
D)4 key

Accepted Answer

Asymmetric-key (or public key) ciphers use two keys: a public key for encryption and a private key for decryption.

Question 17

In asymmetric key cryptography, the two keys e and d, have special relationship to
A)others
B)data
C)keys
D)each other

Accepted Answer

In asymmetric key cryptography, the two keys e (public key) and d (private key) have a special relationship to each other, allowing them to encrypt and decrypt messages securely.

Question 18

_________________ is the process or mechanism used for converting ordinary plain text into garbled non-human readable text & vice-versa.
A)malware analysis
B)exploit writing
C)reverse engineering
D)cryptography

Accepted Answer

Cryptography is the process used for converting plain text into non-readable form and vice versa to ensure data security and privacy.

Question 19

______________ is a means of storing & transmitting information in a specific format so that only those for whom it is planned can understand or process it.
A)malware analysis
B)cryptography
C)reverse engineering
D)exploit writing

Accepted Answer

Cryptography is the practice of securing information by transforming it into a format that is unreadable to unauthorized users, ensuring that only intended recipients can understand or process it.

Question 20

Cryptographic algorithms are based on mathematical algorithms where these algorithms use ___________ for a secure transformation of data.
A)secret key
B)external programs
C)add-ons
D)secondary key

Accepted Answer

Cryptographic algorithms use a secret key for the secure transformation of data, ensuring that only authorized parties can access the information.

Quiz 5: Cryptography and Data Protection

When you use the word ______it means you are protecting your data from getting disclosed.

_______ means the protection of data from modification by unknown users.

_______ of information means, only authorized users are capable of accessing the information.

This helps in identifying the origin of information and authentic user. This referred to here as __________

Data ___________ is used to ensure confidentiality.

What does OSI stand for in the OSI Security Architecure?

A company requires its users to change passwords every month. This improves the ________ of the network.

The ________ is encrypted text.

What type of attack uses a fraudulent server with a relay address?

Which is the largest disadvantage of the symmetric Encryption?

In cryptography, what is cipher?

In asymmetric key cryptography, the private key is kept by __________

Which one of the following algorithm is not used in asymmetric-key cryptography?

In cryptography, the order of the letters in a message is rearranged by __________

What is data encryption standard (DES) ?

A asymmetric-key (or public key ) cipher uses

In asymmetric key cryptography, the two keys e and d, have special relationship to

_________________ is the process or mechanism used for converting ordinary plain text into garbled non-human readable text & vice-versa.

______________ is a means of storing & transmitting information in a specific format so that only those for whom it is planned can understand or process it.

Cryptographic algorithms are based on mathematical algorithms where these algorithms use ___________ for a secure transformation of data.