ITN 260 ESSENTIAL EXAM
QUESTIONS WITH 100% VERIFIED
ANSWERS
What is the latest version of the Secure Hash Algorithm? - Answer-SHA-3
Egor wanted to use a digital signature. Which of the following benefits will the digital
signature not provide? - Answer-verify the receiver
The Hashed Message Authentication Code (HMAC) _____. - Answer-hashes the key
and the message
Proving that a user sent an email message is known as _____. - Answer-non-
repudiation
Alexei was given a key to a substitution cipher. The key showed that the entire alphabet
was rotated 13 steps. What type of cipher is this? - Answer-ROT13
What is data called that is to be encrypted by inputting it into a cryptographic algorithm?
- Answer-plaintext
At a staff meeting one of the technicians suggested that the enterprise protect its new
web server by hiding it and not telling anyone where it is located. Iosif raised his hand
and said that security through obscurity was a poor idea. Why did he say that? -
Answer-It would be essentially impossible to keep its location a secret from everyone.
Which of these is NOT a basic security protection for information that cryptography can
provide? - Answer-risk loss
Abram was asked to explain to one of his coworkers the XOR cipher. He showed his
coworker an example of adding two bits, 1 and 1. What is the result of this sum? -
Answer-0
Which of these is the strongest symmetric cryptographic algorithm? - Answer-Advanced
Encryption Standard
If Bob wants to send a secure message to Alice using an asymmetric cryptographic
algorithm, which key does he use to encrypt the message? - Answer-Alice's public key
Public key systems that generate random public keys that are different for each session
are called _____. - Answer-perfect forward secrecy
, Which of these is NOT a characteristic of a secure hash algorithm? - Answer-Collisions
should be rare.
Which areas of a file cannot be used by steganography to hide data? - Answer-in the
directory structure of the file system
What entity calls in crypto modules to perform cryptographic tasks? - Answer-Crypto
service provider
Which trust model has multiple CAs, one of which acts as a facilitator? - Answer-Bridge
Which of the following block ciphers XORs each block of plaintext with the previous
block of ciphertext before being encrypted? - Answer-Cipher Block Chaining (CBC)
Which of the following is NOT a method for strengthening a key? - Answer-Variability
Public key infrastructure (PKI) _____. - Answer-is the management of digital certificates
Which statement is NOT true regarding hierarchical trust models? - Answer-It is
designed for use on a large scale.
Digital certificates can be used for each of these EXCEPT _____. - Answer-to verify the
authenticity of the Registration Authorizer
An entity that issues digital certificates is a _____. - Answer-Certificate Authority (CA)
A centralized directory of digital certificates is called a(n) _____. - Answer-Certificate
Repository (CR)
Which of these is considered the strongest cryptographic transport protocol? - Answer-
TLS v1.2
A digital certificate associates _____. - Answer-the user's identity with his public key
_____ refers to a situation in which keys are managed by a third party, such as a
trusted CA. - Answer-Key escrow
_____ performs a real-time lookup of a digital certificate's status. - Answer-Online
Certificate Status Protocol (OCSP)
Which digital certificate displays the name of the entity behind the website? - Answer-
Extended Validation (EV) Certificate
What is a value that can be used to ensure that hashed plaintext will not consistently
result in the same digest? - Answer-salt
QUESTIONS WITH 100% VERIFIED
ANSWERS
What is the latest version of the Secure Hash Algorithm? - Answer-SHA-3
Egor wanted to use a digital signature. Which of the following benefits will the digital
signature not provide? - Answer-verify the receiver
The Hashed Message Authentication Code (HMAC) _____. - Answer-hashes the key
and the message
Proving that a user sent an email message is known as _____. - Answer-non-
repudiation
Alexei was given a key to a substitution cipher. The key showed that the entire alphabet
was rotated 13 steps. What type of cipher is this? - Answer-ROT13
What is data called that is to be encrypted by inputting it into a cryptographic algorithm?
- Answer-plaintext
At a staff meeting one of the technicians suggested that the enterprise protect its new
web server by hiding it and not telling anyone where it is located. Iosif raised his hand
and said that security through obscurity was a poor idea. Why did he say that? -
Answer-It would be essentially impossible to keep its location a secret from everyone.
Which of these is NOT a basic security protection for information that cryptography can
provide? - Answer-risk loss
Abram was asked to explain to one of his coworkers the XOR cipher. He showed his
coworker an example of adding two bits, 1 and 1. What is the result of this sum? -
Answer-0
Which of these is the strongest symmetric cryptographic algorithm? - Answer-Advanced
Encryption Standard
If Bob wants to send a secure message to Alice using an asymmetric cryptographic
algorithm, which key does he use to encrypt the message? - Answer-Alice's public key
Public key systems that generate random public keys that are different for each session
are called _____. - Answer-perfect forward secrecy
, Which of these is NOT a characteristic of a secure hash algorithm? - Answer-Collisions
should be rare.
Which areas of a file cannot be used by steganography to hide data? - Answer-in the
directory structure of the file system
What entity calls in crypto modules to perform cryptographic tasks? - Answer-Crypto
service provider
Which trust model has multiple CAs, one of which acts as a facilitator? - Answer-Bridge
Which of the following block ciphers XORs each block of plaintext with the previous
block of ciphertext before being encrypted? - Answer-Cipher Block Chaining (CBC)
Which of the following is NOT a method for strengthening a key? - Answer-Variability
Public key infrastructure (PKI) _____. - Answer-is the management of digital certificates
Which statement is NOT true regarding hierarchical trust models? - Answer-It is
designed for use on a large scale.
Digital certificates can be used for each of these EXCEPT _____. - Answer-to verify the
authenticity of the Registration Authorizer
An entity that issues digital certificates is a _____. - Answer-Certificate Authority (CA)
A centralized directory of digital certificates is called a(n) _____. - Answer-Certificate
Repository (CR)
Which of these is considered the strongest cryptographic transport protocol? - Answer-
TLS v1.2
A digital certificate associates _____. - Answer-the user's identity with his public key
_____ refers to a situation in which keys are managed by a third party, such as a
trusted CA. - Answer-Key escrow
_____ performs a real-time lookup of a digital certificate's status. - Answer-Online
Certificate Status Protocol (OCSP)
Which digital certificate displays the name of the entity behind the website? - Answer-
Extended Validation (EV) Certificate
What is a value that can be used to ensure that hashed plaintext will not consistently
result in the same digest? - Answer-salt
