300-540 Exam Dumps - Designing and Implementing Cisco Service Provider Cloud Network Infrastructure (SPCNI v1.0)

Comprehensive and Detailed Explanation

AnAPI logic flawis a weakness in the API’sbusiness logic— not in encryption or transport security. It occurs when:

API functions are misused

Business rules are bypassed

Security validation is missing

Workflow logic is incorrect

These issues cannot be solved through encryption (at rest or in transit). They require:

✔Vulnerability remediation

✔Fixing API code logic

✔Updating API validation, flow control, and authentication logic

Thus the correct answer isC. Remediation of vulnerabilities.

Comprehensive and Detailed Explanation

For distancesgreater than 20 miles, valid inter-facility transport options must support:

Metro-scale connectivity

High bandwidth

Low latency

Carrier-grade reliability

Acarrier access Ethernet ring (MEN / Metro Ethernet)is designed for:

Interconnecting data centers or meet-me rooms

Distances far exceeding 20 miles

High-availability layer-2 or layer-3 transport

Why the others are invalid:

CAT6e→ maximum ~100 meters

Multimode fiber→ typically <2 km (~1.25 miles)

Private wireless→ not used for high-capacity DC interconnects, unreliable for core transport

Thus, the only correct carrier-grade method isCarrier access Ethernet ring.

Comprehensive and Detailed Explanation

In Cisco Secure Endpoint Private Cloud AirGap mode, Internet access is disabled. Updates must be uploaded manually and then triggered inside the Secure Endpoint console.

The commandforce update -yinitiates the update of the manually uploaded Secure Endpoint package.

Other commands are not used for Secure Endpoint updates:

rpm -qa→ Lists Linux packages only

jamf-sync all→ Used for Apple JAMF integrations

genisoimage→ Used to create ISO files, irrelevant to Secure Endpoint

Therefore,Ais correct.

Cisco NFVIS follows strict security controls. After a fresh deployment:

Thedefault admin credentials are considered insecure.

NFVIS requires the administrator toreset the default password on first login(typically via console or SSH).

Until the password is changed,REST API and web-portal access are denied, and attempts to access the portal or API returnHTTP 401 Unauthorized, even if the default credentials are provided.

This mechanism prevents use of factory-default passwords in production and is explicitly documented as a mandatory post-install step.

The other options are not the cause of a 401 error:

Enabling portal via SSH (B) is not required; HTTPS access is enabled by default once credentials are valid.

Restarting Tomcat (C) would address service availability issues (e.g., 5xx errors), not authentication.

Browser certificates (D) affect trust warnings (e.g., HTTPS certificate errors), not 401 Unauthorized.

Comprehensive and Detailed Explanation

In Cisco Secure Endpoint Private Cloud AirGap mode, Internet access is disabled. Updates must be uploaded manually and then triggered inside the Secure Endpoint console.

The commandforce update -yinitiates the update of the manually uploaded Secure Endpoint package.

Other commands are not used for Secure Endpoint updates:

rpm -qa→ Lists Linux packages only

jamf-sync all→ Used for Apple JAMF integrations

genisoimage→ Used to create ISO files, irrelevant to Secure Endpoint

Therefore,Ais correct.