19-Soft-B3 Security
Worked solutions to 3 past sittings (2014–2018), 21 questions. Pick a sitting, or start from a topic below.
Topics across the sittings
Topics that come up in more than one sitting, taken from the headings of our worked solutions. A topic counts once per sitting.
- Certificate Authority (3 sittings): December 2018 Q2 · December 2016 Q2 · May 2014 Q2
- Cryptographic Hashes (3 sittings): December 2018 Q3 · December 2016 Q3 · May 2014 Q3
- Digital Signatures (3 sittings): December 2018 Q3 · December 2016 Q3 · May 2014 Q3
- Firewalls (3 sittings): December 2018 Q5 · December 2016 Q5 · May 2014 Q5
- Honeypots (3 sittings): December 2018 Q5 · December 2016 Q5 · May 2014 Q5
- Intrusion Detection (3 sittings): December 2018 Q5 · December 2016 Q5 · May 2014 Q5
- MACs (3 sittings): December 2018 Q3 · December 2016 Q3 · May 2014 Q3
- One-Time Pad (3 sittings): December 2018 Q1 · December 2016 Q1 · May 2014 Q1
- Public-Key Communication (3 sittings): December 2018 Q2 · December 2016 Q2 · May 2014 Q2
- Single-Sign-On (3 sittings): December 2018 Q4 · December 2016 Q4 · May 2014 Q4
- Symmetric Ciphers (3 sittings): December 2018 Q1 · December 2016 Q1 · May 2014 Q1
- Two-Factor Authentication (3 sittings): December 2018 Q4 · December 2016 Q4 · May 2014 Q4
- Authentication Factors (2 sittings): December 2016 Q4 · May 2014 Q4
- Availability (2 sittings): December 2018 Q7 · December 2016 Q7
- CIA Triad (2 sittings): December 2018 Q7 · December 2016 Q7
Questions by sitting
December 2018
- Question 1: Symmetric Ciphers — One-Time Pad, Stream Ciphers, and Block-Cipher Modes
- Question 2: Public-Key Communication, the Certificate Authority, and When to Prefer RSA over Diffie–Hellman
- Question 3: Cryptographic Hashes, MACs, and Digital Signatures
- Question 4: Two-Factor Authentication, Single-Sign-On, and Password Storage
- Question 5: Firewalls, the DMZ, Intrusion Detection, and Honeypots
- Question 6: Stack Buffer Overflow in a C Program
- Question 7: The CIA Triad — Confidentiality, Integrity, and Availability
December 2016
- Question 1: Symmetric Ciphers — One-Time Pad vs. Stream Cipher
- Question 2: Public-Key Communication, the Certificate Authority, and Diffie–Hellman vs. RSA
- Question 3: Cryptographic Hashes, MACs, and Digital Signatures
- Question 4: Authentication Factors, Two-Factor Authentication, and Single-Sign-On
- Question 5: Firewalls, the DMZ, Intrusion Detection, and Honeypots
- Question 6: Stack Buffer Overflow in a C Program
- Question 7: The CIA Triad — Confidentiality, Integrity, and Availability
May 2014
- Question 1: Symmetric Ciphers — One-Time Pad vs. Block Cipher
- Question 2: Key Exchange, Public-Key Communication, and the Certificate Authority
- Question 3: Cryptographic Hashes, MACs, and Digital Signatures
- Question 4: Authentication Factors, Two-Factor Authentication, and Single-Sign-On
- Question 5: Firewalls, the DMZ, Intrusion Detection, and Honeypots
- Question 6: Stack Buffer Overflow in a C Program
- Question 7: Least Privilege, Defense in Depth, and Separation of Privilege