& PRINCIPLES QUESTIONS AND
ANSWERS WITH SOLUTIONS 2024
Which statement is the best definition of non-repudiation? - ANSWER An ability to deny previous
participation in a digital transaction, contract, or communication
Which statement is the best definition of availability? - ANSWER An attacker's ability to disrupt or
prevent access to services or data
Which statement is the best definition of authenticity? - ANSWER A degree of confidence that the
correct password, passphrase, or private/secret key has been used
Which statement is the best definition of confidentiality? - ANSWER An attacker's ability to get
unauthorized read or white access to data from an application or system
What are some of the layer of the ISO/OSI 7-layer reference model? - ANSWER Application, Session,
Presentation, Transport
Which statement is the best definition of integrity? - ANSWER An attacker's ability to manipulate,
change, or remove data at rest and data in transit
In the 4-layer TCP/IP reference model, which OSI layers are combined into the top layer? - ANSWER
Application, Session, Presentation