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ServiceNow Certified Implementation Specialist - Discovery Free Sample Questions

Description

Covers Discovery pattern design and operations, Discovery setup and troubleshooting, CI class management and CMDB reconciliation, and planning and operationalizing a Discovery implementation.

12 free sample questions135 in the full practice test

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CIS-DISCO Sample Questions

  1. Question 1

    Advanced

    Discovery Pattern Design · Operations

    A Senior Discovery Architect is designing a custom pattern to discover a legacy mainframe application. The application configuration is stored in a complex flat file located at /etc/legacy_app/config.dat. The architect needs to extract specific parameters like 'AppPort' and 'MaxConnections' from this file to populate the CMDB. Which sequence of Pattern Designer operations represents the MOST efficient and robust approach to achieve this?

    Answer and explanation

    Correct answer: B

    The correct approach involves retrieving the file content first into a variable (often using a 'Get File' or similar command step) and then using the 'Parse Variable' operation. 'Parse Variable' is specifically designed to extract data from a text block held in a variable using parsing strategies like Regex or Delimiters. This is more efficient than trying to parse line-by-line via command line tools on the host, especially for complex flat files.

  2. Question 2

    Intermediate

    Discovery Pattern Design · Application Identification and Connection Sections

    During the debugging of a new Discovery pattern, an engineer observes that the identification section completes successfully, but the pattern fails immediately afterward with an error indicating 'Target CI not found' before entering the connection section. Review the diagram below representing the pattern logic flow. What is the most likely configuration error causing this specific failure?

    Answer and explanation

    Correct answer: C

    In Pattern Designer, the Identification Section MUST result in a valid identification of the CI (matching a CI Identifier rule) so the CI exists in the temporary transaction memory. If the identification steps run but fail to satisfy the uniqueness criteria (e.g., missing serial number or name required by the IRE), the system cannot 'find' the target CI to attach connections to in the subsequent section.

  3. Question 3

    Intermediate

    Discovery Configuration · Discovery Setup

    A global enterprise has three data centers (Americas, EMEA, APAC). They require a Discovery architecture that ensures Discovery traffic remains local to each region to minimize WAN latency and adhere to data sovereignty laws. They also require high availability within each region. Which configuration best satisfies these requirements?

    Answer and explanation

    Correct answer: B

    To ensure traffic stays local and provide HA, you must use MID Server Clusters configured for Load Balancing (which also provides failover capability). You create one cluster per region containing the local MID Servers. Then, you assign the specific regional cluster to the Discovery Schedules targeting IP ranges in that region. This ensures locality and redundancy.

  4. Question 4

    Intermediate

    Discovery Configuration · Discovery Process Flow

    While analyzing the ECC Queue, an administrator notices a 'No credentials would authenticate' error. In which phase of the Discovery PCIE cycle did this error occur, and what is the immediate consequence for the CI?

    Answer and explanation

    Correct answer: A

    The 'No credentials would authenticate' error occurs during the Classification phase. After Shazzam (Port Scan) identifies open ports, Discovery attempts to log in using configured credentials to determine the device type (Classification). If authentication fails, the process halts for that IP, meaning Identification and Exploration never run, so no CI is created or updated.

  5. Question 5

    Intermediate

    Discovery Pattern Design · Syntax

    An implementation specialist needs to parse a version string from a raw data variable in Pattern Designer. The raw string format is App_Name-v12.4.5-Build2024. The requirement is to extract 12.4.5 into the version variable. Which Regular Expression (Regex) correctly captures this value?

    Answer and explanation

    Correct answer: A

    The regex v(\d+\.\d+\.\d+) looks for the literal character 'v' followed by a capture group (...). Inside the group, \d+ matches one or more digits, and \. matches a literal dot. This pattern \d+\.\d+\.\d+ strictly matches the version format '12.4.5' found immediately after 'v'.

  6. Question 6

    Advanced

    Configuration Management Database · CMDB Identification and Reconciliation

    You are configuring the CMDB Identification and Reconciliation Engine (IRE). You have a requirement where CIs discovered by 'ServiceNow Discovery' should always overwrite attributes set by 'Manual Entry', but 'SCCM' imports should only update the 'Operating System' attribute if it is empty. Which feature should you configure to enforce these rules?

    Answer and explanation

    Correct answer: C

    Reconciliation Definitions (specifically Data Source Precedence rules) are used to define the priority of different discovery sources. You can configure rules at the table level (Discovery > Manual) or attribute level (SCCM can only update Operating System if null/lower priority) to control which source is authoritative for CI data.

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