Free U.S. National Security Agency (NSA) Cryptographer Exam Questions and Answers
U.S. National Security Agency (NSA) Cryptographer Exam is one of the US Federal tests covered here. There is no government-wide federal entrance exam: each agency runs its own screen, from OPM's USA Hire battery to Customs and Border Protection's own entrance examinations.
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Last updated: September 29, 2026
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Question #1
What is the primary goal of cryptography?
Correct answer: A
Explanation
The primary goal of cryptography is to ensure confidentiality, integrity, and availability of data.
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Question #2
In a symmetric encryption scheme, what do the sender and receiver share?
Correct answer: D
Explanation
In symmetric encryption, both the sender and receiver share the same secret key for encryption and decryption.
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Question #3
Which of the following is a common hashing algorithm?
Correct answer: B
Explanation
SHA-256 is a commonly used cryptographic hashing algorithm.
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Question #4
What does the term 'ciphertext' refer to?
Correct answer: B
Explanation
Ciphertext refers to the text after it has been encrypted.
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Question #5
Which of the following is NOT a type of attack on cryptographic systems?
Correct answer: C
Explanation
A backdoor is a method of bypassing normal authentication, not a direct attack.
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Question #6
In public key cryptography, what is the role of the public key?
Correct answer: A
Explanation
The public key is used to encrypt messages that only the corresponding private key can decrypt.
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Question #7
What is the main disadvantage of symmetric encryption?
Correct answer: A
Explanation
The main disadvantage of symmetric encryption is the challenge of securely distributing the secret key.
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Question #8
Which of these algorithms is an example of asymmetric encryption?
Correct answer: C
Explanation
RSA is a well-known asymmetric encryption algorithm that uses a pair of keys.
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Question #9
What is a "digital signature"?
Correct answer: B
Explanation
A digital signature is a hash of a message that is encrypted with the sender's private key.
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Question #10
Why is the use of random numbers important in cryptography?
Correct answer: B
Explanation
Random numbers are crucial in cryptography to ensure unpredictability and security in key generation.
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FAQ
- Q1: What is the U.S. National Security Agency (NSA) Cryptographer Exam exam?
- A: U.S. National Security Agency (NSA) Cryptographer Exam is a US Federal certification exam. Judging by the questions in our bank, it concentrates on cryptography, symmetric, hashing, algorithm and attack.
- Q2: What topics does the U.S. National Security Agency (NSA) Cryptographer Exam exam cover?
- A: Questions in our U.S. National Security Agency (NSA) Cryptographer Exam bank cluster around cryptography, symmetric, hashing, algorithm, attack and digital. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for U.S. National Security Agency (NSA) Cryptographer Exam?
- A: Work through the U.S. National Security Agency (NSA) Cryptographer Exam practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real U.S. National Security Agency (NSA) Cryptographer Exam exam questions?
- A: They are drawn from officially released past questions and from community members who have sat U.S. National Security Agency (NSA) Cryptographer Exam. Answers are verified and updated weekly.
- Q5: Where do I register for the U.S. National Security Agency (NSA) Cryptographer Exam exam?
- A: Register through US Federal directly. Exampractice is not affiliated with US Federal and does not administer the exam.
- Q6: Is there a free U.S. National Security Agency (NSA) Cryptographer Exam sample?
- A: Yes. Every U.S. National Security Agency (NSA) Cryptographer Exam page shows a free sample of real questions. Upgrading opens the full bank and the practice test.