CNIT 270 Midterm Exam (Latest Update
) Questions & Answers {Grade
A} 100% Correct
Error detection codes - correct answer Detect changes in data
Hash codes and functions (forms of error detection codes) - correct answer Detect
changes in data
Cryptographic hash functions - correct answer Detects changes in data using a
function that only the data owner can compute (outsider's cant change it)
Error correction codes - correct answer detect and repair errors in data
Digital signatures - correct answer Attest to the authenticity of data
,Digital certificates - correct answer Allow parties to exchange cryptographic keys with
confidence of the identities of both parties
Logical Security - correct answer protects computer-based data from software-based
and communication-based threats
Physical/Infrastructure Security - correct answer Protects information systems that
contain data and the people who use, operate, and maintain the systems
Facilities/Premises Security - correct answer Protects the people and property within
an entire area, facility, or building and is usually required by laws
Virtualization - correct answer provides an abstraction of the resources used by some
software which runs in a simulated environment called a virtual machine (VM)
Benefits include efficiency in the use of physical system resources
, Provides support for multiple distinct operating systems and apps of one physical
system
Raises additional security concerns
VM Security Concerns Include: Guest Operating System (OS) Isolation - correct answer
programs executing within a guest OS may only access and use the resources
allocated to it
VM Security Concerns Include: Guest OS monitoring by the hypervisor - correct
answer privileged access to the programs and data in each guest OS
VM Security Concerns: Virtualized environment security - correct answer image and
snapshot management which attackers may attempt to view or modify
) Questions & Answers {Grade
A} 100% Correct
Error detection codes - correct answer Detect changes in data
Hash codes and functions (forms of error detection codes) - correct answer Detect
changes in data
Cryptographic hash functions - correct answer Detects changes in data using a
function that only the data owner can compute (outsider's cant change it)
Error correction codes - correct answer detect and repair errors in data
Digital signatures - correct answer Attest to the authenticity of data
,Digital certificates - correct answer Allow parties to exchange cryptographic keys with
confidence of the identities of both parties
Logical Security - correct answer protects computer-based data from software-based
and communication-based threats
Physical/Infrastructure Security - correct answer Protects information systems that
contain data and the people who use, operate, and maintain the systems
Facilities/Premises Security - correct answer Protects the people and property within
an entire area, facility, or building and is usually required by laws
Virtualization - correct answer provides an abstraction of the resources used by some
software which runs in a simulated environment called a virtual machine (VM)
Benefits include efficiency in the use of physical system resources
, Provides support for multiple distinct operating systems and apps of one physical
system
Raises additional security concerns
VM Security Concerns Include: Guest Operating System (OS) Isolation - correct answer
programs executing within a guest OS may only access and use the resources
allocated to it
VM Security Concerns Include: Guest OS monitoring by the hypervisor - correct
answer privileged access to the programs and data in each guest OS
VM Security Concerns: Virtualized environment security - correct answer image and
snapshot management which attackers may attempt to view or modify
