Defense in Depth

An organization implements firewalls, intrusion detection systems, and disk encryption. Which principle best describes the deployment of multiple, overlapping security controls to protect critical assets?

Which TWO of the following are primary objectives of implementing a defense in depth strategy in a corporate environment?

Which of the following represents an example of applying defense in depth at the host level?

When designing a defense in depth strategy, why is it recommended to use heterogeneous security controls rather than homogeneous ones?

Which THREE of the following are examples of how network segmentation supports the principle of defense in depth?

Which concept describes the use of security controls that operate at the perimeter, network, host, application, and data layers to protect an organization?

Why does the inclusion of detective controls improve a defense in depth strategy?

A financial services firm has deployed a next-generation firewall at its internet perimeter, host-based firewalls on every workstation, and VLAN segmentation between departments. During a purple-team exercise, analysts discover that a contractor's laptop, once connected to the internal network, can reach the HR payroll server directly over SMB. The security team wants to enforce the principle of least privilege on this internal traffic. Which control should they implement to best achieve this?

A healthcare provider is designing a defense in depth strategy for its electronic health record (EHR) system. The security architect proposes using a different vendor's endpoint detection and response (EDR) product, a different firewall brand, and a different SIEM platform than those used by the rest of the organization. The CIO asks why heterogeneous controls are preferred over standardizing on a single vendor. Which statement best justifies the architect's recommendation?

A hospital's IT team is designing layered defenses for its electronic health record (EHR) system. They already have perimeter firewalls, network intrusion prevention, and endpoint antivirus. The CISO wants to add a control that detects unauthorized modification of EHR database records and alerts the security team in near real time. Which control best fills this gap while preserving defense in depth?

A hospital's billing server runs Windows Server 2019 and stores insurance claim data. The security team wants to add a control that will detect unauthorized modification of the claim files even if an attacker gains administrative access to the operating system. Which control best meets this requirement?

A small financial firm has a flat network with no internal segmentation. The security team wants to apply defense in depth to limit the blast radius of a compromised workstation. Which action best aligns with that goal?

A financial services firm separates its cardholder data environment from the corporate network using internal VLANs and a next-generation firewall. The security architect wants to add a detective control that will identify malicious traffic that successfully crosses between segments. Which solution best fits this requirement?

A retail company is reviewing its defense in depth strategy after a breach where an attacker used stolen credentials to access a database server. The investigation showed that the server had no host-based logging, and database activity was not monitored. Which TWO controls should be added to improve detection of similar future attacks? (Choose two.)

A software company is hardening its Linux build pipeline. The team wants to apply defense in depth controls that reduce the impact of a compromised build server. Which THREE actions best support this goal? (Choose three.)

A government agency uses a defense in depth architecture with strict perimeter firewalls, network segmentation, and endpoint protection. During a red team exercise, attackers gained initial access via a phishing email and then moved laterally by exploiting a misconfigured internal server. The agency wants to improve its ability to detect and respond to such lateral movement. Which control would be most effective to add?

A retail company's e-commerce site is being targeted by credential stuffing attacks. The security team wants to add a control that slows automated login attempts while preserving a smooth experience for legitimate customers. Which control best fits this requirement?

A software development company wants to protect its source code repositories from insider threats and external attackers. The company already uses network segmentation and endpoint detection. The security team proposes adding a control that requires two distinct factors before developers can access repositories, even from within the corporate network. Which control best meets this requirement?

A company stores backup tapes offsite. An auditor notes that the tapes contain sensitive customer data and are transported by a third-party courier. The security manager wants to ensure that a lost tape cannot expose customer information. Which control best addresses this risk?

A university's research department stores controlled unclassified research data on a Windows file server. The IT team wants to implement a defense in depth control that ensures only authorized users can access the data even if they have physical access to the server room. Which of the following controls best meets this requirement?