Computer Security Principles | Exam Questions
With Complete Solutions 100% Verified Newest
2025
Public Key infrastructure (PKI) - ANSWER Provides all the components necessary for
different types of users and entities to be able to communicate securely and in a
predictable manner. It is made up of hardware, applications, policies, services,
programming interfaces, cryptographic algorithms, protocols, users and utilities.
Why do we need to construct and implement a PKI? - ANSWER It boils down to
establishing a level of trust. In this environment, entities called registration authorities
(RA) and certificate authorities (CAs) provide services similar to those of the Department
of Motor Vehicles (DMV).
Key Escrow - ANSWER Is the process of giving keys to a third party so that they can
decrypt and read sensitive information if the need arises. It almost always pertains to
handing over encryption keys to the government.
Dual Control - ANSWER Which simply means that two people have to be present to
carry out a specific task.
Protocol - ANSWER Is an agreed-upon format for exchanging or transmitting data
between systems. Defines a number of agreed-upon parameters, such as the data
compressio method.
Certificate Authority (CA) - ANSWER Is a trusted authority that certifies individuals
identifities and creates electronic documents indicating that individuals are who they
say they are.
, Registration Authority (RA) - ANSWER Is the PKI component that accepts a request for a
digital certificate and performs the necessary steps of registering and authenticating the
person requesting the certificate.
Local Registration Authority (LRA) - ANSWER Performs the same functions as an RA, but
the LRA is closer to the end users. This component is usually implemented in companies
that have their own internal PKIs and have distributed sites.
What is the purpose of a digital certificate? - ANSWER It binds an individual's identity to
a public key and it contains all the information a receiver needs to be assured of the
identity of the public key owner.
What is a suspended certificate? - ANSWER This means that the certificate is
temporarily put on hold.
What is a revoked certificate? - ANSWER This is because of issues associated with the
private key being compromised, this action is permanent and final, once this is done to a
certificate it cannot be reinstated.
What is Network Address Translation (NAT)? - ANSWER This translates private
(nonroutable) IP addresses into public (routable) IP addresses.
What is a benefit of (NAT)? - ANSWER This allows organizations to use private IP address
that are hidden from direct Internet access.
For common combustibles such as wood, paper, cloth and plastics (Types of Fires).
Name the class of fire and what suppression methods are used? - ANSWER Class A,
Water or dry chemical.
With Complete Solutions 100% Verified Newest
2025
Public Key infrastructure (PKI) - ANSWER Provides all the components necessary for
different types of users and entities to be able to communicate securely and in a
predictable manner. It is made up of hardware, applications, policies, services,
programming interfaces, cryptographic algorithms, protocols, users and utilities.
Why do we need to construct and implement a PKI? - ANSWER It boils down to
establishing a level of trust. In this environment, entities called registration authorities
(RA) and certificate authorities (CAs) provide services similar to those of the Department
of Motor Vehicles (DMV).
Key Escrow - ANSWER Is the process of giving keys to a third party so that they can
decrypt and read sensitive information if the need arises. It almost always pertains to
handing over encryption keys to the government.
Dual Control - ANSWER Which simply means that two people have to be present to
carry out a specific task.
Protocol - ANSWER Is an agreed-upon format for exchanging or transmitting data
between systems. Defines a number of agreed-upon parameters, such as the data
compressio method.
Certificate Authority (CA) - ANSWER Is a trusted authority that certifies individuals
identifities and creates electronic documents indicating that individuals are who they
say they are.
, Registration Authority (RA) - ANSWER Is the PKI component that accepts a request for a
digital certificate and performs the necessary steps of registering and authenticating the
person requesting the certificate.
Local Registration Authority (LRA) - ANSWER Performs the same functions as an RA, but
the LRA is closer to the end users. This component is usually implemented in companies
that have their own internal PKIs and have distributed sites.
What is the purpose of a digital certificate? - ANSWER It binds an individual's identity to
a public key and it contains all the information a receiver needs to be assured of the
identity of the public key owner.
What is a suspended certificate? - ANSWER This means that the certificate is
temporarily put on hold.
What is a revoked certificate? - ANSWER This is because of issues associated with the
private key being compromised, this action is permanent and final, once this is done to a
certificate it cannot be reinstated.
What is Network Address Translation (NAT)? - ANSWER This translates private
(nonroutable) IP addresses into public (routable) IP addresses.
What is a benefit of (NAT)? - ANSWER This allows organizations to use private IP address
that are hidden from direct Internet access.
For common combustibles such as wood, paper, cloth and plastics (Types of Fires).
Name the class of fire and what suppression methods are used? - ANSWER Class A,
Water or dry chemical.
