SDP Principles Quiz

Questions and Answers

What is a primary principle of the Zero Trust model?

Automatically granting access to known users

Maintaining fixed privileges for all entities

Establishing trust based on user history

Assuming breach and verifying all access requests (correct)

Which principle is NOT associated with Software Defined Perimeter (SDP)?

Using single packet authorization (SPA)

Assuming trustworthiness of devices (correct)

Implementing fine-grained access control

Hiding servers and services

How does the Zero Trust model alter the traditional view of trusted entities?

It eliminates the concept of trusted entities altogether. (correct)

It maintains a reliable list of trusted devices.

It assumes all access requests are automatically valid.

It requires more trust inside a defined perimeter.

What process does SDP utilize for user connections?

Enforcing mutual transport layer security (mTLS) Signup and view all the answers

What is the purpose of creating micro-perimeters in the Zero Trust framework?

To enhance visibility and control over data assets Signup and view all the answers

Which of the following is a characteristic of the least privilege principle in SDP?

Users are granted minimal access required for tasks Signup and view all the answers

What is a key control feature of SDP in relation to device validation?

Regularly re-evaluating device security status Signup and view all the answers

Which method is explicitly used in SDP for enhancing security during communications?

Dynamic rules on drop-all firewalls Signup and view all the answers

What is the primary goal of Software-Defined Perimeter (SDP)?

To integrate various security controls into a unified framework. Signup and view all the answers

How does SDP ensure access to application infrastructure?

Through device attestation and identity verification. Signup and view all the answers

Which statement best describes the relationship between SDP and the Zero Trust model?

SDP is considered a foundational element of the Zero Trust model. Signup and view all the answers

What does SDP require from users before granting access to hidden assets?

Cryptographic signing in via validated devices. Signup and view all the answers

What function does a drop-all firewall serve in an SDP implementation?

To hide assets by blocking all incoming connections by default. Signup and view all the answers

Which of the following is NOT a component integrated by SDP?

Physical security measures. Signup and view all the answers

What is required for establishing trust in the SDP environment?

A separate control plane. Signup and view all the answers

Which characteristic distinguishes SDP from traditional security models?

SDP assumes no implicit trust in network entities. Signup and view all the answers

What is the primary high-level principle shared by both SDP and Zero Trust architectures?

Never trust, always verify Signup and view all the answers

Which of the following is considered a distinctive feature of Software Defined Perimeter (SDP) compared to other Zero Trust models?

Drop-all rule Signup and view all the answers

In what year did the U.S. Defense Information Systems Agency first initiate the program that eventually led to the development of SDP?

2004 Signup and view all the answers

What does the CSA's SDP framework focus on?

Controlling access based on identity and device attestation Signup and view all the answers

Why is SDP considered 'future proof'?

It is based on a flexible framework designed for expansion Signup and view all the answers

How does SDP manage connectivity to applications?

Using a need-to-know model Signup and view all the answers

Which of the following statements is true regarding SDP and ZTA?

SDP is a subset of Zero Trust architecture (ZTA). Signup and view all the answers

What challenge is addressed by the implementation of SDP as organizations undergo digital transformation?

Staying ahead of the threat landscape and attack chain curves Signup and view all the answers

Study Notes

SDP Principles

SDP architecture emphasizes least privilege and segregation of duties.
Key controls include dynamic rules on drop-all firewalls to enhance security.
Servers and services are hidden to prevent unauthorized access.
Authentication is required before establishing connections, ensuring users are authorized on specific devices.
Single packet authorization (SPA) and mutual transport layer security (mTLS) provide secure communication.
Access control is fine-grained, allowing for detailed device validation.

Relationship Between SDP & ZT

Zero Trust (ZT) is the overarching model encompassing SDP.
ZT principle: No assumptions about trustworthiness are made when entities request resource access.
ZT starts with no pre-established privileges, allowing privileges to be added constructively.
ZT operates under the assumption of breach, necessitating verification of access requests for all resources.
ZT emphasizes creating micro-perimeters around sensitive data to enhance control and visibility.
Access requests require verification before granting permission, with continuous monitoring throughout the session.
While SDP has different origins than ZT, both share the principle of prioritizing verification over trust.
SDP requires users to sign in cryptographically for access to hidden assets in public infrastructures.
SDP integrates various security controls (applications, firewalls, clients) for a unified security approach.

History of SDP

SDP originated from the U.S. Defense Information Systems Agency's initiative in 2007 focused on cybersecurity.
The CSA established the SDP framework in 2013, which aims to control access based on identity and device attestation.
SDP operates using a need-to-know model, verifying device posture and identity before allowing access.
Resources in an SDP environment are hidden without DNS information or IP addresses, making them undetectable without specific access permissions.
As organizations pursue digital transformation, SDP addresses evolving cybersecurity threats and challenges.

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Description

Test your understanding of Software Defined Perimeter (SDP) principles. This quiz covers key controls like dynamic rules, server hiding, and authentication processes. Delve into the concepts that ensure security in the SDP architecture.