Domain 2: Incident Response, Business Continuity and Disaster Recovery Concepts

Question 1

Adverse Events

Answer 1

Events with a negative consequence, such as system crashes, network packet floods, unauthorized use of system privileges, defacement of a web page or execution of malicious code that destroys data.

Question 2

Breach

Answer 2

The loss of control, compromise, unauthorized disclosure, unauthorized acquisition or any similar occurrence where: a person other than an authorized user accesses or potentially accesses personally identifiable information; or an authorized user accesses personally identifiable information for other than an authorized purpose. Source: NIST SP 800-53 Rev. 5

Question 3

Business Continuity (BC)

Answer 3

Actions, processes and tools for ensuring an organization can continue critical operations during a contingency.

Question 4

Business Continuity Plan (BCP)

Answer 4

The documentation of a predetermined set of instructions or procedures that describe how an organization’s mission/business processes will be sustained during and after a significant disruption.

Question 5

Business Impact Analysis (BIA)

Answer 5

An analysis of an information system’s requirements, functions, and interdependencies used to characterize system contingency requirements and priorities in the event of a significant disruption. Reference: https://csrc.nist.gov/glossary/term/business_impact_analysis

Question 6

Disaster Recovery (DR)

Answer 6

In information systems terms, the activities necessary to restore IT and communications services to an organization during and after an outage, disruption or disturbance of any kind or scale.

Question 7

Disaster Recovery Plan (DRP)

Answer 7

The processes, policies and procedures related to preparing for recovery or continuation of an organization’s critical business functions, technology infrastructure, systems and applications after the organization experiences a disaster. A disaster is when an organization’s critical business function(s) cannot be performed at an acceptable level within a predetermined period following a disruption.

Question 8

Event

Answer 8

Any observable occurrence in a network or system. Source: NIST SP 800-61 Rev 2

Question 9

Exploit

Answer 9

A particular attack. It is named this way because these attacks exploit system vulnerabilities.

Question 10

Incident

Answer 10

An event that actually or potentially jeopardizes the confidentiality, integrity or availability of an information system or the information the system processes, stores or transmits.

Question 11

Incident Handling or Incident Response (IR)

Answer 11

The process of detecting and analyzing incidents to limit the incident’s effect.

Question 12

Incident Response Plan (IRP)

Answer 12

The documentation of a predetermined set of instructions or procedures to detect, respond to and limit consequences of a malicious cyberattack against an organization’s information systems(s). Source: NIST SP 800-34 Rev 1

Question 13

Intrusion

Answer 13

A security event, or combination of security events, that constitutes a security incident in which an intruder gains, or attempts to gain, access to a system or system resource without authorization. Source: IETF RFC 4949 Ver 2

Question 14

Security Operations Center

Answer 14

A centralized organizational function fulfilled by an information security team that monitors, detects and analyzes events on the network or system to prevent and resolve issues before they result in business disruptions.

Question 15

Vulnerability

Answer 15

Weakness in an information system, system security procedures, internal controls or implementation that could be exploited or triggered by a threat source. Source: NIST SP 800-128.

Question 16

Zero Day

Answer 16

A previously unknown system vulnerability with the potential of exploitation without risk of detection or prevention because it does not, in general, fit recognized patterns, signatures or methods.