Top 20+ Threat Modeling Interview Question-Answer

Threat Modeling Interview Question-Answer

Threat modeling works to identify, communicate, and understand threats and mitigations within the context of protecting something of value.

A threat model is a structured representation of all the information that affects the security of an application. In essence, it is a view of the application and its environment through the lens of security.

Threat modeling can be applied to a wide range of things, including software, applications, systems, networks, distributed systems, Internet of Things (IoT) devices, and business processes.

A threat model typically includes:

  • Description of the subject to be modeled
  • Assumptions that can be checked or challenged in the future as the threat landscape changes
  • Potential threats to the system
  • Actions that can be taken to mitigate each threat
  • A way of validating the model and threats, and verification of success of actions taken

Threat modeling is a process for capturing, organizing, and analyzing all of this information. Applied to software, it enables informed decision-making about application security risks. In addition to producing a model, typical threat modeling efforts also produce a prioritized list of security improvements to the concept, requirements, design, or implementation of an application.

In 2020 a group of threat modeling practitioners, researchers and authors got together to write the Threat Modeling Manifesto in order to “…share a distilled version of our collective threat modeling knowledge in a way that should inform, educate, and inspire other practitioners to adopt threat modeling as well as improve security and privacy during development”. The Manifesto contains values and principles connected to the practice and adoption of Threat Modeling, as well as identified patterns and anti-patterns to facilitate it.

Objectives of Threat Modeling

Threat modeling is a family of activities for improving security by identifying threats, and then defining countermeasures to prevent, or mitigate the effects of, threats to the system. A threat is a potential or actual undesirable event that may be malicious (such as DoS attack) or incidental (failure of a Storage Device). Threat modeling is a planned activity for identifying and assessing application threats and vulnerabilities.

 

 

Q.1 The following is a part of a threat model, except _________.

A. A list of potential threats

B. Analysis of actions taken

C. Implementation of processes

D. Mitigation steps for each threat

Ans : Analysis of actions taken

Q.2 Which of the following security property does Spoofing violate?

A. Confidentiality

B. Authentication

C. Integrity

D. Availability

Ans : Authentication

Q.3 ________ generates a map that illustrates how the user moves through various features of the application.

A. Data Flow Diagram

B. Process Flow Diagram

C. Entity Diagram

D. Sequence Diagram

Ans : Process Flow Diagram

Q.4 DREAD model can be used for ________.

A. Identifying threats

B. Documentation

C. Rating threats

D. Identifying assets

Ans : Rating threats

Q.5 Which of the following is a tangible asset?

A. Data on a database

B. Brand Reputation

C. Patent

D. Goodwill

Ans : Data on a database

Q.6 A ‘requirements model’ is the foundation of the __________ methodology.

A. PASTA

B. OCTAVE

C. Trike

D. STRIDE

Ans : Trike

Q.7 Which of the following threat can be handled using access control?

A. Elevation of privilege

B. Tampering

C. Denial of Service

D. Information Disclosure

E. All the options

Ans : All the options

Q.8 ________ helps bridge the gap between development and security.

A. Threat Modeling

B. Visualization using DFDs

C. Testing

D. Security analysis

Ans : Threat Modeling

Q.9 Which of the following are the advantages of threat modeling?

A. Helps find security bugs early

B. Helps understand security requirements

C. Helps engineer and deliver better products

D. All the options

Ans : All the options

Q.10 Which of the following security property does Tampering violate?

A. Availability

B. Integrity

C. Authentication

D. Confidentiality

Ans : Integrity

Q.11 Identity theft is an example of __________.

A. Tampering

B. Non-Repudiation

C. DoS

D. Spoofing

Ans : Spoofing

Q.12 Multifactor authentication can be used to handle _________.

A. Spoofing

B. Tampering

C. DoS

D. Repudiation

Ans : Spoofing

Q.13 The number of distinct symbols that can be used in DFDs is __________.

A. Four

B. Six

C. Depends on the application

D. Five

Ans : Five

Q.14 Which of the following terms can be used to describe the scenario where a program or user is technically able to do things they are not supposed to do?

A. Elevation of Privilege

B. Spoofing

C. Repudiation

D. Tampering

Ans : Elevation of Privilege

Q.15 Denial of Service hinders _________.

A. Availability

B. Authenticity

C. Confidentiality

D. Integrity

Ans : Availability

Q.16 _________ is a medium that allows data to flow between domains of trust.

A. Trust boundary

B. Attack Vector

C. Data Flow

D. Data Store

Ans : Trust boundary

Q.17 Which of the following issues can be addressed using an efficient logging system?

A. Denial of Service

B. Repudiation

C. Tampering

D. Spoofing

Ans : Repudiation

Q.18 Microsoft’s Threat Modeling tool uses __________ threat classification scheme.

A. VAST

B. OCTAVE

C. STRIDE

D. Trike

Ans : STRIDE

Q.19 In DFDs, the context diagram represents the ____________.

A. Overview of processes, inputs and outputs

B. Data flow in all modules

C. Complete system design

D. All the options

Ans : Data flow in all modules

Q.20 DFDs can be used to determine the timing/sequencing of the processes.

A. True

B. False

Ans : False

 

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