CERTIFIED ETHICAL HACKER EXAM REVIEW SOLVED QUESTIONS COMPLETE
ANSWERS GRADED A PLUS
Certified Ethical Hacker Final Paper 2026/2027
Complete Response SET Questions and Answers
Verified Solutions Latest Update
Question:
Objectives of Cryptography.
Answer:
- Confidentiality Integrity Authentication Nonrepudiation
Question:
Confidentiality.
Answer:
Assurance that the information is accessible only to those authorized to access it
Question:
Integrity.
Answer:
Trustworthiness of data or resources in terms of preventing improper and unauthorized changes
Question:
Authentication.
Answer:
Assurance that the communication, document, or data is genuine
Question:
Nonrepudiation.
,Answer:
Guarantee that the sender of a message cannot later deny having sent the message and that the
recipient cannot deny having received the message
Question:
Types of Cryptography.
Answer:
- Symmetric Encryption Asymmetric Encryption
Question:
Symmetric Encryption.
Answer:
Symmetric encryption requires that both the sender and the receiver of the message possess the
same encryption key.
Question:
Asymmetric Encryption.
Answer:
An asymmetric-key system is an encryption method that uses a key pair comprising a public key
available to anyone and a private key held only by the key owner
Question:
Asymmetric Encryption Steps.
Answer:
1. An individual finds the public key of the person he or she wants to contact in a directory 2. This
public key is used to encrypt a message that is then sent to the intended recipient 3. The receiver
uses the private key to decrypt the message and reads it
,Question:
Symmetric Encryption Strengths.
Answer:
- Faster and easier to implement Requires less processing power Can be implemented in
application-specific integrated chip (ASIC) Prevents widespread message security compromise The
key is not bound to the data being transferred on the link; therefore, even if the data are intercepted,
it is not possible to decrypt it
Question:
Symmetric Encryption Weaknesses.
Answer:
- Lack of secure channel to exchange the secret key Difficult to manage and secure too many shared
keys that are generated to communicate with different parties Provides no assurance about the origin
and authenticity of a message Vulnerable to dictionary attacks and brute-force attacks
Question:
Asymmetric Encryption Strengths.
Answer:
- Convenient to use, as the distribution of keys to encrypt messages is not required Enhanced
security, as one need not share or transmit private keys to anyone Provides digital signatures that
cannot be repudiated
Question:
Asymmetric Encryption Weaknesses.
Answer:
- Slow in processing and requires high processing power Widespread message security compromise
is possible Messages received cannot be decrypted if the private key is lost Vulnerable to
man-in-the-middle and brute-force attacks
Question:
, Government Access to Keys (GAK).
Answer:
GAK refers to the statutory obligation of individuals and organizations to disclose their
cryptographic keys to government agencies.
Question:
Key escrow.
Answer:
A key exchange arrangement in which essential cryptographic keys are stored with a third party in
escrow. The third party can use or allow others to use the encryption keys under certain predefined
circumstances
Question:
Cipher.
Answer:
An algorithm for performing encryption and decryption
Question:
Enchiperment.
Answer:
Process of converting plaintext into a cipher or code
Question:
Decipherment.
Answer:
Process of converting ciphertext into plaintext
ANSWERS GRADED A PLUS
Certified Ethical Hacker Final Paper 2026/2027
Complete Response SET Questions and Answers
Verified Solutions Latest Update
Question:
Objectives of Cryptography.
Answer:
- Confidentiality Integrity Authentication Nonrepudiation
Question:
Confidentiality.
Answer:
Assurance that the information is accessible only to those authorized to access it
Question:
Integrity.
Answer:
Trustworthiness of data or resources in terms of preventing improper and unauthorized changes
Question:
Authentication.
Answer:
Assurance that the communication, document, or data is genuine
Question:
Nonrepudiation.
,Answer:
Guarantee that the sender of a message cannot later deny having sent the message and that the
recipient cannot deny having received the message
Question:
Types of Cryptography.
Answer:
- Symmetric Encryption Asymmetric Encryption
Question:
Symmetric Encryption.
Answer:
Symmetric encryption requires that both the sender and the receiver of the message possess the
same encryption key.
Question:
Asymmetric Encryption.
Answer:
An asymmetric-key system is an encryption method that uses a key pair comprising a public key
available to anyone and a private key held only by the key owner
Question:
Asymmetric Encryption Steps.
Answer:
1. An individual finds the public key of the person he or she wants to contact in a directory 2. This
public key is used to encrypt a message that is then sent to the intended recipient 3. The receiver
uses the private key to decrypt the message and reads it
,Question:
Symmetric Encryption Strengths.
Answer:
- Faster and easier to implement Requires less processing power Can be implemented in
application-specific integrated chip (ASIC) Prevents widespread message security compromise The
key is not bound to the data being transferred on the link; therefore, even if the data are intercepted,
it is not possible to decrypt it
Question:
Symmetric Encryption Weaknesses.
Answer:
- Lack of secure channel to exchange the secret key Difficult to manage and secure too many shared
keys that are generated to communicate with different parties Provides no assurance about the origin
and authenticity of a message Vulnerable to dictionary attacks and brute-force attacks
Question:
Asymmetric Encryption Strengths.
Answer:
- Convenient to use, as the distribution of keys to encrypt messages is not required Enhanced
security, as one need not share or transmit private keys to anyone Provides digital signatures that
cannot be repudiated
Question:
Asymmetric Encryption Weaknesses.
Answer:
- Slow in processing and requires high processing power Widespread message security compromise
is possible Messages received cannot be decrypted if the private key is lost Vulnerable to
man-in-the-middle and brute-force attacks
Question:
, Government Access to Keys (GAK).
Answer:
GAK refers to the statutory obligation of individuals and organizations to disclose their
cryptographic keys to government agencies.
Question:
Key escrow.
Answer:
A key exchange arrangement in which essential cryptographic keys are stored with a third party in
escrow. The third party can use or allow others to use the encryption keys under certain predefined
circumstances
Question:
Cipher.
Answer:
An algorithm for performing encryption and decryption
Question:
Enchiperment.
Answer:
Process of converting plaintext into a cipher or code
Question:
Decipherment.
Answer:
Process of converting ciphertext into plaintext
