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| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Designing Cisco Security Infrastructure (SDSI) v1.0 |
| Exam Number: | 300-745 |
| Certificate Validity Period: | 3 years |
| Passing Score: | Pass/Fail (scaled score 750–850 / 1000) |
| Exam Price: | USD 300 |
| Exam Format: | Simulation, Fill in the blank, Hot area, Build a tree, Multiple choice |
| Real Exam Qty: | 55–65 |
| Exam Duration: | 90 minutes |
| Related Certifications: | Cisco Certified Specialist – Designing Cisco Security Infrastructure |
| Available Languages: | Japanese, English |
| Recommended Training: | Cisco U. SDSI Learning Path Designing Cisco Security Infrastructure (SDSI) Training |
| Exam Registration: | Cisco Certification Exam Registration |
| Sample Questions: | Cisco 300-745 Sample Questions |
| Exam Way: | Online proctored or onsite at authorized test centers |
| Pre Condition: | No formal prerequisites; recommended knowledge of security architecture, threat modeling, and secure system design |
| Official Syllabus URL: | https://www.cisco.com/site/us/en/learn/training-certifications/exams/sdsi.html |
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질문 # 12
A company published software that had a security vulnerability, and an attacker used the vulnerability to steal critical information from the environment. The issue was reported by the security team, and the administrator was instructed to run shift-left security tests before publishing the software. Which component of the software development pipeline must be recommended to run the tests?
정답：A
설명：
Shift-left security means running security tests earlier in the development lifecycle. By integrating tests in the source code management stage (e.g., Git repositories), vulnerabilities can be detected and fixed before software is built and deployed, reducing the risk of publishing insecure code.
질문 # 13
In preparation for an upcoming security audit, a metal production company decided to enhance the security of container-based services running in a Kubernetes environment. The company wants to ensure that all communications between applications and services are encrypted. The administrator plans to implement mTLS service between application and services to secure the data exchanges. Given the need to manage encryption at scale and maintain efficient communication across the cluster, which network transport technology must be employed?
정답：A
설명：
A Service Mesh provides built-in support for mutual TLS (mTLS) between microservices, ensuring encrypted communication at scale in Kubernetes environments. It also centralizes management of certificates, keys, and security policies, making it the right choice for securing data exchanges across the cluster.
질문 # 14
A manufacturing company experienced a security breach that resulted in sales data being compromised. An engineer participating in the investigation must identify who logged into the sales system during the affected period. Which approach must be used to gather the information?
정답：D
설명：
In the aftermath of a security breach, forensic investigators rely on theAccountingportion ofAAA (Authentication, Authorization, and Accounting)to reconstruct a timeline of events. While Authentication verifies identity and Authorization defines permissions, Accounting is the specific framework used to track user activity, including login/logout times and the specific commands executed during a session.
According to Cisco Security Infrastructure design objectives, implementing a centralized AAA solution (such asCisco Identity Services Engine (ISE)or a TACACS+/RADIUS server) is critical for accountability. In this scenario, the engineer would query the AAA logs to identify exactly "who" accessed the sales system during the compromise period.SNMP(Option A) is primarily for network monitoring and performance data, not granular user access logs.NACM(Option B) is an access control model for NETCONF but doesn't provide the broad auditing required here.PKI(Option D) provides the certificates used for digital signatures and encryption but does not log the historical "session" data needed for the investigation. Therefore, AAA is the fundamental architectural requirement for ensuring non-repudiation and providing the audit trail necessary to satisfy risk management and incident response requirements.
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질문 # 15
Which tool is used to collect, analyze, and visualize logs from network devices, endpoints, and other sources in an enterprise?
정답：B
설명：
Splunk is a SIEM and log management tool used to collect, analyze, and visualize logs from diverse sources such as network devices, endpoints, and applications. It provides centralized visibility for security monitoring and incident response.
질문 # 16
An IT company experienced the spread of malicious content between user endpoints, which impacted business critical resources. The company wants to implement a solution to control communication between individual endpoints on the network. Which approach achieves the goal?
정답：A
설명：
The spread of malicious content between endpoints is a classic case oflateral movement. To control and restrict communication between individual endpoints-regardless of their physical location or IP address- Cisco TrustSecis the recommended architectural approach. TrustSec moves away from traditional, IP-based Access Control Lists (ACLs), which are difficult to manage and scale, and instead usesScalable Group Tags (SGTs).
With TrustSec, every endpoint is assigned an SGT based on its role or security context (e.g., "Employee,"
"Contractor," or "HR"). Security policies are then defined in a centralized matrix (the egress policy matrix) that dictates which SGTs can talk to one another. For example, a policy can be set so that endpoints in the
"Developer" group cannot communicate directly with endpoints in the "Sales" group, effectively preventing malware from hopping between machines. WhileRADIUS(Option A) is the protocol used for authentication, it does not perform the segmentation itself.Posture(Option C) checks the health of the device, andProfiling (Option D) identifies what the device is, but neither provides the policy-based traffic control of TrustSec. By implementing TrustSec, the company achievesmicro-segmentation, significantly reducing the internal attack surface and containing potential breaches within a single group, which is a core goal of modern secure infrastructure design.
질문 # 17
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