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Exam CIS-Discovery Topic 2 Question 1 Discussion

Actual exam question for ServiceNow's CIS-Discovery exam
Question #: 1
Topic #: 2
A network device has both an SSH port and an SNMP port open. Discovery tries the SSH probe first and it fails. This triggers the SNMP probe, which succeeds. Discovery uses SNMP first for subsequent discoveries on that device.
What discovery functionality allows the above to happen?

Suggested Answer: B Vote an answer

Credential affinity is an association between a set of credentials and a device on your network. When Discovery or Orchestration first attempts to access a device, they try all available credentials until a valid one is found. Once a valid credential is found, it is recorded in the dscy_credentials_affinity table, and further discovery processes rely on this information. If the credentials are modified or changed, the process will be repeated until a valid credential is found and updated in the same table. Credential affinity allows Discovery to use the most efficient and successful credential for each device, and avoid unnecessary credential failures.
References: Credential affinity for Discovery and Orchestration, Credential Management in ServiceNow discovery

by rajesh.jain25 at Apr 02, 2024, 02:08 AM

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rajesh.jain25
2024-04-02 02:08:43
Selected Answer: D
The IP Services table maps a port to a protocol. Several mappings are provided by default for commonly used port-protocol combinations, such as port 80 for HTTP, port 22 for SSH, and port 161 for SNMP.
A system property called glide.discovery.ip_service_affinity.allows Discovery to remember the last port of the IP address that was discovered. This property is set to false by default. - https://docs.servicenow.com/bundle/vancouver-it-operations-management/page/product/credentials/task/t_CheckIPServiceAffinity.html
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