250-585 実際試験問題と解答 - 模擬練習 - 受験自信を増やす

Question No : 1
The QA team wants to simulate 10,000 alarms in Spectrum to test Notification Gateway scaling.
Which built-in tool accomplishes this without third-party software?

A.alarmgen
B.eventviewdebug
C.trapedit
D.simulator

正解:
Explanation:
The simulator utility generates synthetic alarms/events for load testing.

Question No : 2
While adding a second Performance Center to your environment you need to ensure unique Vertica sub-cluster names. Where is this configured?

A.Vertica.ini
B.da_init.conf
C.dr-install.properties
D.Portal UI under Administration → Vertica

正解:
Explanation:
The dr-install.properties file defines sub-cluster names for DR during install.

Question No : 3
True or false? Vertica spread encryption must be enabled on all DR nodes before NetOps installer finishes, otherwise the installation aborts.

A.True
B.False

正解:
Explanation:
Spread encryption can be toggled post-install; installer warns but does not abort.

Question No : 4
To integrate Spectrum and Performance Management using Single Point of Discovery, which Portals’ IP Domain setting ensures that Spectrum auto-models devices discovered by PM?

A.Shared with Spectrum = True
B.Is Default Domain = False
C.Enable Replication = True
D.Use CDM = False

正解:
Explanation:
Setting Shared with Spectrum triggers replication of device lists to Spectrum.

Question No : 5
Which NetOps component uses Cassandra as its primary data store?

A.NetOps Portal
B.Flow Services
C.Data Aggregator
D.VNA Aggregator

正解:
Explanation:
Flow Stores persist their records in Apache Cassandra.

Question No : 6
You cloned a factory Monitoring Profile to include a component filter for environmental sensors, but no temperature metrics appear.
Which step did you miss?

A.Enabling Component Roll-Up on the Collection
B.Importing the Environment MIB into DA
C.Assigning the new profile to a Collection
D.Restarting the Data Collector

正解:
Explanation:
Cloned profiles are inactive until assigned to at least one Collection.

Question No : 7
Which TWO prerequisites must be satisfied before running the Portal Backup and Restore CLI to capture configuration and performance data? (Choose TWO)

A.Portal services stopped
B.Adequate disk on local /backup directory
C.Data Repository in read-only mode
D.Password-less SSH from Portal to DR

正解:
Explanation:
Backup script streams data via SSH to DR nodes; enough disk space is required. Services can stay online; DR read-only is unnecessary.

Question No : 8
True or false? In a multi-tenant Portal deployment, threshold profiles created in a Tenant context are invisible to Global administrators unless explicitly shared.

A.True
B.False

正解:
Explanation:
Tenant scoping isolates thresholds and dashboards; sharing requires role-based permissions.

Question No : 9
When configuring NetOps HTTPS Concepts in a training lab, you need to demonstrate the complete TLS handshake.
Which OpenSSL command shows both clientHello and serverHello packets?

A.openssl verify -CAfile ca.crt server.crt
B.openssl s_client -connect portal.lab:8443 -tls1_2 -msg
C.openssl req -new -sha256 -key server.key -out csr.pem
D.openssl x509 -text -in server.crt

正解:
Explanation:
s_client … -msg prints detailed handshake message flow.

Question No : 10
A Performance Management administrator wishes to embed Spectrum’s Root-Cause summary inside a custom Portal context page.
Which integration component supplies the REST endpoint for this data?

A.Spectrum REST with /alarmService
B.PM-Spectrum Inventory Sync Service
C.SSO Gateway token introspection service
D.AlarmNotifier WebHook

正解:
Explanation:
Root-Cause summaries are part of Spectrum’s alarmService REST API.

Question No : 11
Which TWO Spectrum configuration files must be edited to enable HTTPS on OneClick after importing a CA-signed certificate? (Choose TWO)

A.$SPECROOT/tomcat/conf/server.xml
B.$SPECROOT/NT_SERVICES
C.$SPECROOT/custom/registry.xml
D.$SPECROOT/bin/OneClick.properties

正解:
Explanation:
server.xml defines the HTTPS connector, and registry.xml stores port/protocol mappings; NT_SERVICES applies only on Windows services.

Question No : 12
True or false? Vertica K-Safety level of 1 guarantees zero data loss if any single node in the DR cluster fails.

A.True
B.False

正解:
Explanation:
K-Safety 1 keeps a replica of each projection on another node; single node loss is tolerable.

Question No : 13
While customizing dashboards you embed a view that relies on a Metric Family only present on devices monitored by a recently added vendor certification.
Which permission must users have to avoid “Unauthorized Metric Family” errors?

A.View Metric Family role right
B.Administer Thresholds
C.Manage Views and Dashboards
D.Tenant Administrator

正解:
Explanation:
Viewing data tied to a metric family requires the View Metric Family permission, independent of dashboard creation rights.

Question No : 14
Select TWO benefits of using password-less SSH between Data Repository nodes beyond ease of administration. (Choose TWO)

A.Enables Vertica’s Spread client for cluster synchronization
B.Accelerates vCollect export from NetOps Portal
C.Facilitates dr backup script parallel copy operations
D.Decreases SNMP polling latency

正解:
Explanation:
Spread and DR backups rely on SSH to exchange data across Vertica nodes; polling uses TCP/161.

Question No : 15
You plan to integrate NetOps with a third-party ticketing system that accepts REST calls when alarms clear.
Which Spectrum component provides the native outbound REST interface needed?

A.Event Configuration Manager
B.Spectrum Representational Web Services (REST)
C.AlarmNotifier
D.Archive Manager

正解:
Explanation:
The REST Web Services module natively exposes alarms, events, and models for external orchestration.

Broadcom 250-585 問題練習