Introduction-to-Cryptography최신버전덤프데모문제, Introduction-to-Cryptography시험대비덤프데모다운

참고: Itexamdump에서 Google Drive로 공유하는 무료, 최신 Introduction-to-Cryptography 시험 문제집이 있습니다: https://drive.google.com/open?id=13PBJCiBsLuWL53OoLY-x9JwJ-7DkA2GX

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WGU Introduction-to-Cryptography Exam Syllabus Topics:

>> Introduction-to-Cryptography최신버전 덤프데모문제 <<

시험패스에 유효한 Introduction-to-Cryptography최신버전 덤프데모문제 덤프로 시험정복하기

만일WGU Introduction-to-Cryptography인증시험을 첫 번째 시도에서 실패를 한다면 WGU Introduction-to-Cryptography덤프비용 전액을 환불 할 것입니다. 만일 고객이 우리 제품을 구입하고 첫 번째 시도에서 성공을 하지 못 한다면 모든 정보를 확인 한 후에 구매 금액 전체를 환불 할 것 입니다. 이러한 방법으로 저희는 고객에게 어떠한 손해도 주지 않을 것을 보장합니다.

최신 Courses and Certificates Introduction-to-Cryptography 무료샘플문제 (Q50-Q55):

질문 # 50
(A security analyst uses a polyalphabetic substitution cipher with a keyword of YELLOW to encrypt a message. Which cipher should be used to encrypt the message?)

• A. Pigpen
• B. Vigenere
• C. Caesar
• D. Playfair

정답：B

설명：
A polyalphabetic substitution cipher uses multiple substitution alphabets rather than a single fixed mapping. The classic cipher that uses a keyword to select shifting alphabets across the message is the Vigenere cipher. In Vigenere, each plaintext letter is shifted by an amount determined by the corresponding key letter (repeating the keyword as needed). For example, a keyword like "YELLOW" is aligned under the plaintext; each key character defines a Caesar shift (A=0, B=1, ...) applied to the plaintext character, producing ciphertext. This rotation of alphabets across positions makes Vigenere more resistant to simple frequency analysis than monoalphabetic substitution, because the same plaintext letter may encrypt to different ciphertext letters depending on its position relative to the key.
The Pigpen cipher is a symbol substitution cipher, Caesar is monoalphabetic with a single shift, and Playfair is a digraph substitution cipher using a 5×5 key square, not the repeating-key polyalphabetic method described. Therefore, the correct cipher is Vigenere.

질문 # 51
(What is the purpose of code-signing in current systems?)

• A. To verify the integrity and authenticity of software
• B. To generate random numbers for encryption
• C. To authenticate users during data transmission
• D. To compress data for efficient storage

정답：A

설명：
Code-signing is used to provide verifiable assurance that software comes from a known publisher and has not been modified since it was signed. In a typical code-signing workflow, the publisher computes a cryptographic hash (digest) of the executable or package and then creates a digital signature over that digest using the publisher's private key. Operating systems, browsers, and application platforms verify the signature using the corresponding public key (usually delivered via a code-signing certificate chained to a trusted root).
If verification succeeds, the system can trust that the code's contents match what the publisher signed (integrity) and that the signer identity is authenticated by the certificate chain (authenticity). This helps defend against tampering, malware injection, and supply-chain attacks where attackers alter binaries or updates in transit or at rest. Code-signing does not primarily generate randomness, compress data, or authenticate users; it authenticates the software publisher and validates the software artifact. Modern ecosystems also use timestamping and revocation checking to handle certificate expiration and compromised signing keys, reinforcing trust over time.

질문 # 52
(What is a key benefit of using a cryptography framework?)

• A. It removes the need for employee training in security.
• B. It is solely focused on regulatory compliance.
• C. It provides a structured approach to implementing encryption practices.
• D. It guarantees complete security against all attacks.

정답：C

설명：
A cryptography framework provides a consistent, repeatable way to select, deploy, and manage cryptographic controls across an organization. Its key benefit is structure: it defines approved algorithms and key sizes, acceptable modes of operation, key management rules (generation, storage, rotation, revocation, backup), certificate handling, and secure protocol configurations (e.g., TLS settings). This reduces ad hoc implementations that often lead to vulnerabilities such as weak ciphers, key reuse, improper randomness, or missing integrity protections. A framework also clarifies roles and processes-who can access keys, how secrets are audited, and how exceptions are handled-improving governance and operational reliability.
Importantly, it does not guarantee perfect security; no framework can eliminate all risk, and secure outcomes still depend on correct implementation, monitoring, and maintenance. It also does not eliminate the need for training; human error is a major source of crypto misconfiguration. While frameworks help with compliance, they are not solely about regulation; they are about sound security engineering and lifecycle management.
Therefore, the primary benefit is providing a structured approach to implementing encryption practices.

질문 # 53
(Which attack may take the longest amount of time to achieve success?)

• A. Dictionary
• B. Brute-force
• C. Birthday
• D. Rainbow table

정답：B

설명：
A brute-force attack exhaustively tries every possible key or password candidate until the correct one is found. Because it explores the full search space (or a very large portion of it), brute force is often the slowest method, especially when strong keys, long passwords, rate limits, and slow password hashing (bcrypt/Argon2) are used. By contrast, a dictionary attack reduces work by trying only common or likely passwords, often succeeding quickly against weak human-chosen secrets. Rainbow table attacks shift work into precomputation; once a table exists, lookup can be faster than brute-force-though salt and modern hashing defeat them. Birthday attacks are about finding collisions, not necessarily recovering a specific secret, and their expected work is about 2

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