WGU C725 Review – Questions With Correct Solutions
What are the three levels of the CIA Triad Right Ans - Confidentiality,
Integrity, Availability
What is confidentiality used for Right Ans - to prevent disclosure of
information to unauthorized acces
What is an example of confidentiality Right Ans - encryption
what is integrity used for Right Ans - protect the reliability of data by
preventing any unauthorized modifications
What is an example of integrity Right Ans - digital signatures
What is Availability Right Ans - The assurance that systems and networks
are always up and running
what is an example of Availability Right Ans - fault tolerance
What is Defense in Depth Right Ans - Defense in depth is a security layers
used to protect an asset
What is an example of defense in depth Right Ans - Physical controls,
technical controls and administrative controls
Explain the role of a Risk matrix in qualitative Risk Assessment Right Ans -
The role of risk matrix is to prioritize risks by severity. helps the
categorization of risks in Qualitative Risk Assessment
What is the message digest Right Ans - A message digest is the output that
is produced after an original message goes through a one way hashing
algorithm
What is a digital certificate and how can it prove identity Right Ans - Is
used to verify the owner of a public key, identity can be proven by verifying
with the trusted certificate authority
, What is the difference between asymmetric and symmetric encryption
Right Ans - Asymmetric uses 2 keys, a public and a private key. Symmetric
used one key, a private key.
Asymmetric is more secure, but slower
Which is RSA- Symmetric or asymetric Right Ans - RSA is an algorithm
used to encrypt and decrypt messages and is asymmetric
What are the seven layers of the OSI stack Right Ans - Application
Presentation
Session
transport
network
Datalink
Physical
Describe the OSI layer Application Right Ans - This is responsible for
network services, and or operating systems
Describe the OSI layer Presentation Right Ans - Transforms data from the
application layer to format to be sued on any OSI system
Describe the OSI layer Session Right Ans - Responsible for establishing
communication between 2 computers
Describe the OSI layer transport Right Ans - Manages connections between
two devices and transports data between the two
Describe the OSI layer network Right Ans - Routes network messages from
one computer to another
Describe the OSI layer data link Right Ans - Formats packets from the
network layer to the proper transmissions
Describe the OSI layer Physical Right Ans - contains the hardware devices
and drivers from the layer to transmit
What is a policy Right Ans - Defines the scope and assets that require
protection
What are the three levels of the CIA Triad Right Ans - Confidentiality,
Integrity, Availability
What is confidentiality used for Right Ans - to prevent disclosure of
information to unauthorized acces
What is an example of confidentiality Right Ans - encryption
what is integrity used for Right Ans - protect the reliability of data by
preventing any unauthorized modifications
What is an example of integrity Right Ans - digital signatures
What is Availability Right Ans - The assurance that systems and networks
are always up and running
what is an example of Availability Right Ans - fault tolerance
What is Defense in Depth Right Ans - Defense in depth is a security layers
used to protect an asset
What is an example of defense in depth Right Ans - Physical controls,
technical controls and administrative controls
Explain the role of a Risk matrix in qualitative Risk Assessment Right Ans -
The role of risk matrix is to prioritize risks by severity. helps the
categorization of risks in Qualitative Risk Assessment
What is the message digest Right Ans - A message digest is the output that
is produced after an original message goes through a one way hashing
algorithm
What is a digital certificate and how can it prove identity Right Ans - Is
used to verify the owner of a public key, identity can be proven by verifying
with the trusted certificate authority
, What is the difference between asymmetric and symmetric encryption
Right Ans - Asymmetric uses 2 keys, a public and a private key. Symmetric
used one key, a private key.
Asymmetric is more secure, but slower
Which is RSA- Symmetric or asymetric Right Ans - RSA is an algorithm
used to encrypt and decrypt messages and is asymmetric
What are the seven layers of the OSI stack Right Ans - Application
Presentation
Session
transport
network
Datalink
Physical
Describe the OSI layer Application Right Ans - This is responsible for
network services, and or operating systems
Describe the OSI layer Presentation Right Ans - Transforms data from the
application layer to format to be sued on any OSI system
Describe the OSI layer Session Right Ans - Responsible for establishing
communication between 2 computers
Describe the OSI layer transport Right Ans - Manages connections between
two devices and transports data between the two
Describe the OSI layer network Right Ans - Routes network messages from
one computer to another
Describe the OSI layer data link Right Ans - Formats packets from the
network layer to the proper transmissions
Describe the OSI layer Physical Right Ans - contains the hardware devices
and drivers from the layer to transmit
What is a policy Right Ans - Defines the scope and assets that require
protection
