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IBM Instana Observability v1.0.277 Administrator - Professional Free Sample Questions

Description

Covers Instana architecture planning, installing the backend and agents, configuring business process and serverless monitoring, data retention and compliance, and troubleshooting.

17 free sample questions206 in the full practice test

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C1000-189 Sample Questions

  1. Question 1

    Advanced

    Planning · Prepare Installation Prerequisites

    An enterprise architect is designing an Instana deployment for a highly regulated financial institution. The environment requires a self-hosted Instana backend on a Kubernetes cluster that is completely air-gapped from the public internet. The architect needs to ensure that the image registry configuration supports this constraint while maintaining the ability to update the backend components efficiently using the Instana Operator.

    Which sequence of actions correctly prepares the environment for this air-gapped installation?

    Answer and explanation

    Correct answer: B

    In an air-gapped environment, the Instana backend images must be mirrored from the public Instana registry to a local private registry accessible by the Kubernetes cluster. The kubectl-instana plugin facilitates this mirroring. Once mirrored, the installation configuration (Core Custom Resource) must be updated to reference this local registry and include the necessary imagePullSecrets for authentication.

  2. Question 2

    Intermediate

    Planning · Distinguish Agent Modes

    A large retail organization is planning to monitor a hybrid environment consisting of on-premise physical servers running legacy Java applications and a new fleet of microservices on AWS EKS. They want to minimize the resource overhead on the legacy servers while ensuring full distributed tracing for the microservices.

    Which agent deployment strategy aligns BEST with these requirements?

    Answer and explanation

    Correct answer: C

    Infrastructure mode reduces overhead by disabling AutoTrace and language sensors, which is ideal for legacy servers where deep APM might be too resource-intensive or unnecessary if only host health is needed. The EKS cluster requires APM mode to provide the required distributed tracing for microservices.

  3. Question 3

    Intermediate

    Planning · Prepare Installation Prerequisites

    You are sizing the storage requirements for a Self-Hosted Instana backend (Standard Edition) on Docker. The environment has a sustained ingestion rate of 500 calls per second and 100 infrastructure metrics per second. You need to ensure data retention complies with a 30-day policy for trace data before it is rolled up or deleted.

    Which component's storage requirement is MOST critical to calculate accurately for this specific trace retention goal?

    Answer and explanation

    Correct answer: B

    In the Instana Standard Edition architecture, Cassandra is the primary data store for trace data (spans). Therefore, the disk space sizing for Cassandra is directly correlated with the volume of traces (calls per second) and the desired retention period (30 days).

  4. Question 4

    Intermediate

    Planning · Compare Cloud service agents and serverless agents

    A consultant is designing an Instana solution for a client using AWS Lambda functions written in Node.js. The client requires deep visibility into the function execution, including database calls made by the Lambda, but wants to minimize the impact on cold start times.

    What is the recommended method to instrument these Lambda functions?

    Answer and explanation

    Correct answer: D

    Using the Instana Lambda Layer is the standard and most efficient way to instrument AWS Lambda functions. It provides AutoTrace capabilities within the Lambda runtime environment without requiring code modification, capturing deep execution data while optimizing for the serverless environment.

  5. Question 5

    IntermediateMultiple answers

    Planning · Distinguish Agent Modes

    Which of the following scenarios would explicitly require the use of the Instana Static Agent rather than the Dynamic Agent? (Select TWO)

    Answer and explanation

    Correct answers: B, D

    The Static Agent is self-contained and does not update itself or download new sensors from Instana repositories. This is required for strict change control environments.

    Dynamic agents attempt to fetch updates and sensors from the internet. In a completely air-gapped environment without a configured local mirror/repository, a Static Agent (which includes all necessary sensors in the package) is often preferred or required to simplify deployment.

  6. Question 6

    Beginner

    Planning · Articulate Instana architecture for on-premise

    While planning the network architecture for an on-premise Instana installation, you need to ensure that the agents can successfully report data to the backend. The backend is installed behind a load balancer.

    Which port MUST be open on the load balancer to accept incoming agent data connections?

    Answer and explanation

    Correct answer: C

    Port 1444 is the primary port used by Instana agents to communicate with the Instana backend (Acceptor component) using HTTP/2.

  7. Question 7

    Advanced

    Installation · Install Agents

    You are installing the Instana Host Agent on a Kubernetes cluster using Helm. You need to configure the agent to report to a specific backend endpoint and use a specific agent key. Additionally, you must assign the cluster to a zone named 'production-us-east'.

    Which Helm command snippet correctly applies these configurations?

    Answer and explanation

    Correct answer: D

    This command correctly sets the essential parameters: agent.key for authentication, agent.endpointHost for the backend connection, and zone.name to logically group the agents in the Instana UI.

  8. Question 8

    Intermediate

    Installation · Install Instana backend

    A DevOps engineer is using the stanctl command-line tool to install a single-host self-hosted Instana backend on a Linux VM. The installation fails with an error indicating insufficient disk space for the data stores.

    Which command should the engineer run to verify the pre-flight checks and identify the specific requirement failure before attempting the installation again?

    Answer and explanation

    Correct answer: C

    The stanctl inspect command is used to gather information about the environment and check for issues or requirements, often generating a support bundle or status report that highlights requirement failures.

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