Alpha and Beta are having a conversation in English. Gamma, who is a gifted conversationalist and tends to monopolize conversations, approaches Alpha and Beta. As soon as Alpha and Beta see Gamma, they start speaking in Spanish, but Gamma does not understand. What did Alpha and Beta just do?

A fifth-grade teacher shows the class a message encrypted using ROT13. After explaining how it works, the teacher challenges them to decrypt the message, which they easily accomplish. The teacher then repeats the process with the XOR cipher. Which of the following statements is true? Select two.

Johnny develops an app to encrypt short messages. He runs the encryption program, but it is designed to deliberately introduce a 5- to 15-second delay before encryption begins. What type of data is Johnny about to encrypt?

Which of the following statements best describes the critical factor that allows cryptographic algorithms to be effective?

Hiding information through encryption so that threat actors cannot view it is considered one of several different mitigation techniques that enterprises can use to protect information. It is also considered a hardening technique that makes a system more resilient to attacks. Which of the following statements are true about encryption?

Daichi works on a project team that is designing a storage system with immutable archiving capabilities. Once data is archived, it uses cryptography to verify the data has not been changed. Which security protection is the system designed to enforce?

An employee tries to mask his identity by programmatically changing the From field to "a-nony-mouse" in an email. He uses periodic intervals to send the email to the entire company promoting a product he is selling online. An investigation reveals who sent the message. What capability of cryptography was used to confirm the sender's identity?

A group of scientists are trying to vigorously protect a major discovery that will potentially lead to a series of breakthrough products. They all sign a special nondisclosure agreement and commit to not revealing the information to others outside of the department. What approach have the scientists agreed to employ?

Which of the following statements correctly describes the differences or similarities between a stream cipher and a block cipher? Select two.

Kalaki subscribes to an online computer digest. Kalaki notices a string of characters with a message next to a link that reads "... use to verify file integrity after downloading." What does the string of characters represent? Select four.

A hash algorithm creates a unique "digital fingerprint" of a set of data. This process is called hashing, and the resulting fingerprint is a digest (sometimes called a message digest or simply a hash) that represents the contents. A hash is the result of a one-way cryptographic algorithm. It is designed so that it cannot be reversed to reveal the original set of data. Select all that apply.

Bodhi is leading a team responsible for writing the specifications of a new hashing algorithm. What factor does the team need to keep in mind to ensure it is secure? Select three.

Salvadori wants to send a message halfway around the world via email. He would like to convey the hash corresponding to the message over the phone to the recipient. Which of the following hash algorithms should Salvadori use? Select three.

A company is exploring a variety of symmetric key algorithms to use in an app. Which of the following statements best describes a possible concern?

Which of the following statements properly expresses the characteristics of AES and Blowfish? Select three.

Pasua encrypts a message using a public key and the recipient decrypts the message using the corresponding private key. What conclusions can you draw based on these actions?

You need to explain to the CEO of a company the differences between symmetric and asymmetric cryptographic algorithms. Which one of the following statements are you most likely to convey?

Rico sends a message to Lola. However, based on how the message was sent, Lola cannot verify it was sent from Rico, but she can verify it has not been altered. What could Rico have done that would have enabled Lola to verify the sender? Select two.

Which of the following statements is true regarding hashing?

Which key combination would the recipient of a message use to confirm the integrity of the message as well as the authenticity of the sender?

Which of the following is a true statement regarding key exchange solutions?

Quinto wants to set up an encrypted folder on his computer running Microsoft Windows. Which of the following is Quinto most likely to use?

Protecting the entire hard drive using cryptography is known as full-disk encryption (FDE) and protects all data on a hard drive, including the installed OS. One example of FDE software is included in Microsoft Windows and is known as BitLocker drive encryption software. BitLocker prevents attackers from accessing data by booting from another OS or placing the hard drive in another computer. Which of the following are examples of full-disk encryption?

After a recent breach in your industry, you are asked to ensure the databases your company uses are encrypted. They also request performance degradation be kept to a minimum. Which database encryption method are you most likely to implement?

Which of the following represents a true statement regarding software and hardware encryption? Select three.

How does Blockchain use cryptography to ensure the integrity of data?

Which of the following statements best describes a challenge, if any, associated with securing low-powered devices with very fast response times?

Sophisticated statistical tools exist that can be used to perform an analysis of the ciphertext in an attempt to discover a pattern in the ciphertexts, which then may be useful in revealing the plaintext or key. This is called a known ciphertext attack or ciphertext-only attack because all that is known is the ciphertext, but it can still reveal clues that may be mined. What did he perform?

Cadence will attempt to find two different sets of input text that will yield the same hash when using MD5. What type of attack is Cadence most likely to perform?

An attacker is scanning wireless networks and discovers that one of them is set up to support the two most recent protocols. What type of attack is the malicious actor most likely to launch to try to breach the security settings of the wireless device?