[2024年11月] 検証済みIBM C1000-156リアル豪華お試しセット試験問題集でPDF
C1000-156問題集PDF最新 [2024年最新] 究極の学習ガイド
質問 # 18
Which authentication type in QRadar encrypts the username and password and forwards the username and password to the external server for authentication?
- A. RADIUS authentication
- B. Two-factor authentication
- C. System authentication
- D. TACACS authentication
正解：D
解説：
TACACS (Terminal Access Controller Access-Control System) authentication is a protocol used in IBM QRadar SIEM V7.5 for authenticating users by forwarding their credentials to an external server. Here's how it works:
Encryption: TACACS encrypts the entire payload of the authentication packet, including the username and password, ensuring secure transmission.
Forwarding Credentials: After encryption, the credentials are forwarded to an external TACACS server, which performs the actual authentication.
Authentication Process: The external server checks the credentials against its database and sends a response back to QRadar indicating whether the authentication is successful or not.
Reference
IBM QRadar SIEM documentation explains TACACS authentication in detail, highlighting its secure encryption and external server verification process.
質問 # 19
Which is a valid statement about the process of restoring a backup archive?
- A. A restoration might fail if you restore the configuration backup before the data backup.
- B. When restoring all configuration items included in the backup archive, only configuration information, offense data, and asset data are restored.
- C. A backup archive can only be restored for the same software version, including fix pack versions.
- D. A configuration restore must be performed on a console where the IP address matches the IP address of a managed host in the backup.
正解：C
解説：
When restoring a backup archive in QRadar, it is essential to ensure that the software version matches exactly. This includes both the base version and any fix pack versions.
Attempting to restore a backup archive from a different software version can lead to compatibility issues, data corruption, and system instability.
Always verify that the backup archive corresponds to the same QRadar version before initiating the restoration process.
Reference:
IBM QRadar SIEM V7.5 Administration documentation.
質問 # 20
Which command does an administrator run in QRadar to get a list of installed applications and their App-ID values output to the screen?
- A. /opt/qradar/support/threadTop.sh
- B. /opt/qradar/support/recon ps
- C. /opt/qradar/support/recon connect 1005
- D. opt/qradar/support/deployment_info.sh
正解：D
解説：
To get a list of installed applications and their App-ID values in IBM QRadar SIEM, the administrator can run the following command:
Command: /opt/qradar/support/deployment_info.sh
Function: This command outputs detailed information about the current deployment, including a list of all installed applications and their associated App-ID values.
Usage: The administrator executes this command in the terminal, and the information is displayed on the screen.
Reference
IBM QRadar SIEM V7.5 administration guides include this command as a standard tool for retrieving deployment information, including details about installed applications and their IDs.
質問 # 21
Before configuring a WinCollect log source, which two ports does a QRadar administrator ensure are open?
- A. 443 and 8413
- B. 8080 and 8413
- C. 514 and 8413
- D. 445 and 8413
正解：C
解説：
Before configuring a WinCollect log source in QRadar, the administrator must ensure that specific network ports are open to facilitate communication. The required ports are:
Port 514: This is the default port for syslog, a standard protocol used to send system log or event messages to a specific server. WinCollect uses this port to send logs from Windows machines to the QRadar server.
Port 8413: This port is used for communication between the WinCollect agent and the QRadar Console. It is necessary for managing the WinCollect agent and ensuring proper data transmission.
Ensuring these ports are open is crucial for the seamless operation and integration of WinCollect with QRadar, allowing the secure and efficient collection of log data from Windows environments.
Reference
IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf
質問 # 22
Which command in QRadar allows you to run a specific command inside of a specific container, when given an app ID. or a combination of workload, service, and container?
- A. ifconfig -a
- B. recon connect
- C. yum info
- D. recon ps
正解：B
解説：
The recon connect command in IBM QRadar SIEM V7.5 allows administrators to run a specific command inside a specific container, given an app ID or a combination of workload, service, and container. Here's how it works:
Command: recon connect
Function: This command connects to a specified container and allows the execution of commands within that container.
Usage: Administrators use this command to manage and troubleshoot applications running in isolated environments (containers) within QRadar.
Reference
The QRadar administration and support guides detail the usage of the recon connect command for managing containerized applications.
質問 # 23
You are using the command line interface (CLI) and need to fix a storage issue. What command do you use to verify disk usage levels?
- A. lsof -h
- B. du -h
- C. Is -laF
- D. df -h
正解：D
解説：
To verify disk usage levels in a Linux environment, the df -h command is used. This command provides an overview of the disk space usage, displaying the available and used space in a human-readable format.
Open the terminal or CLI on the system.
Type df -h and press Enter.
Review the output, which will show the filesystem, size, used space, available space, and usage percentage for all mounted filesystems.
Reference
IBM QRadar SIEM V7.5 Administration documentation.
質問 # 24
When restoring backups of your apps in a QRadar environment, what information is restored?
- A. The apps configuration and app data are restored.
- B. The last known good version of your apps configuration, your application data, and any apps that were configured on an App Host are restored.
- C. The apps configuration, the console configuration, and app data are restored.
- D. The applications that are installed on the Console are restored, and any applications that are installed on an AppHost must be backed up separately.
正解：B
解説：
When restoring backups of your apps in a QRadar environment, the system restores the last known good version of your apps' configuration, your application data, and any apps that were configured on an App Host. This comprehensive restoration process ensures that all critical components of your applications, including their configurations and data, are recovered to their previous states. This is crucial for maintaining the integrity and functionality of the applications after a restoration.
Reference
QRadar SIEM V7.5 Administration Guide - Chapter on Backup and Restore Procedures
質問 # 25
A ORadar administrator is trying to tune a rule so that it cannot send an email more than 10 times in a 24-hour period. Which method can be used to accomplish this goal?
- A. Using a special rule test that limits the number of rule triggers
- B. Using the "execute custom action" rule response
- C. Tuning the rule conditions to make it trigger fewer times
- D. Using the "response limiter"
正解：D
解説：
To ensure that a rule in IBM QRadar SIEM V7.5 does not send an email more than 10 times in a 24-hour period, the "response limiter" can be used. Here's how it works:
Response Limiter: This feature limits the number of times a rule action (such as sending an email) can be executed within a specified timeframe.
Configuration: Set the response limiter to a maximum of 10 actions in 24 hours.
Implementation: Apply the response limiter to the rule, ensuring that even if the rule conditions are met multiple times, the email will only be sent up to the specified limit.
Reference
IBM QRadar SIEM documentation on rule management and tuning includes detailed instructions on using the response limiter to control the frequency of rule actions.
質問 # 26
In the QRadar GUI. you notice that no new offenses were generated today. A review of the notifications shows:
MPC: Unable to create new offense. The maximum number of active offenses has been reached.
What is the default value of the maximum number?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
解説：
In IBM QRadar SIEM V7.5, the default value for the maximum number of active offenses is set to 2500. This limit is in place to manage system performance and ensure efficient processing of security incidents. Here's the detailed information:
Default Setting: The default setting for the maximum number of active offenses is 2500.
Impact: If this limit is reached, QRadar will not generate new offenses until some of the existing offenses are closed or archived.
Configuration: Administrators can adjust this setting based on their organizational needs, but the default value is 2500.
Reference
This information is detailed in the QRadar SIEM configuration and tuning guides, which specify default settings and provide instructions for modifying the maximum number of active offenses if necessary.
質問 # 27
What is the main reason for tuning a building block?
- A. Reducing EPS usage
- B. Increasing the performance of the ecs-ec-ingress service
- C. Properly documenting the building block for future administrators
- D. Reducing the number of false positives
正解：D
解説：
Tuning a building block in IBM QRadar SIEM V7.5 is primarily aimed at reducing the number of false positives. This process involves adjusting the rules and logic within the building block to better differentiate between normal and suspicious activity. Here's the detailed explanation:
False Positives: High numbers of false positives can overwhelm analysts and obscure genuine threats. Tuning helps in refining detection criteria to reduce these false alarms.
Rule Adjustments: Modifying the thresholds, conditions, and filters within the building block rules to ensure they more accurately reflect the environment's typical behavior.
Improved Accuracy: Enhanced precision in detecting true security incidents, thus improving the overall effectiveness of the SIEM solution.
Reference
IBM QRadar SIEM administration guides and best practice documents emphasize the importance of tuning to minimize false positives, ensuring more actionable alerts.
質問 # 28
When configuring a log source, which protocols are used when receiving data into the event ingress component?
- A. Syslog, HTTP Receiver, JDBC
- B. Syslog, HTTP Receiver, SNMP
- C. Syslog, FTP Receiver, SNMP
- D. SFTR HTTP Receiver, SNMP
正解：B
解説：
When configuring a log source in IBM QRadar SIEM V7.5, the protocols used to receive data into the event ingress component are critical for ensuring proper data collection and analysis. The main protocols that are supported for this purpose are:
Syslog: A widely used protocol for message logging, supported by many network devices and servers.
HTTP Receiver: Allows QRadar to receive logs via HTTP POST requests, enabling integration with various web services and applications.
SNMP (Simple Network Management Protocol): Used for collecting and organizing information about managed devices on IP networks and for modifying that information to change device behavior.
Reference
IBM QRadar SIEM documentation and product guides confirm that these are the supported protocols for receiving data into the event ingress component. The specific details on protocol support can be found in the QRadar SIEM administration and configuration manuals.
質問 # 29
A QRadar administrator creates a new saved search in QRadar.
Which option does the administrator enable to allow this search to be opened as the Log Activity tab is opened?
- A. Share with Everyone
- B. Set as Default
- C. Include in my Dashboard
- D. Include in my Quick Searches
正解：B
解説：
Similar to the previous question, when a QRadar administrator creates a new saved search and wants it to be the first search displayed upon opening the Log Activity tab, the correct option to enable is "Set as Default." Here's the detailed process:
Saved Search Creation: The administrator specifies the search parameters and criteria to create a new saved search.
Enabling Default Setting: By selecting the "Set as Default" checkbox, the administrator ensures that this search will automatically run and display when the Log Activity tab is accessed.
Utility: This option is particularly useful for quickly accessing the most relevant data without needing to manually select and run the saved search each time.
Setting a default search helps maintain focus on critical security events by providing immediate access to predefined search results.
Reference
IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf
質問 # 30
What are some of the supported custom property expression types in QRadar?
- A. Regex. JSON, HTML
- B. Regex, RDBMS, LEEF
- C. Regex, JSON, LEEF
- D. RDBMS, JSON, HTML
正解：C
解説：
IBM QRadar SIEM supports various types of custom property expressions to allow users to extract and parse data from logs in flexible and powerful ways. Among the supported custom property expression types, Regex, JSON, and LEEF are frequently utilized:
Regex (Regular Expressions): Regular expressions are a powerful tool used for pattern matching and extraction in text. In QRadar, regex can be used to create custom properties that parse specific patterns from log data, allowing for detailed and precise data extraction.
JSON (JavaScript Object Notation): JSON is a widely used data interchange format that is lightweight and easy to read and write. QRadar supports JSON expressions to parse and extract structured data from logs formatted in JSON.
LEEF (Log Event Extended Format): LEEF is a log format used by various devices to structure log data in a consistent manner. QRadar can utilize LEEF expressions to extract data from logs that use this format.
These types of expressions enhance QRadar's ability to handle diverse log formats and enable more accurate and efficient data analysis.
Reference
IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf
質問 # 31
When will events or flows stop contributing to an offense?
- A. When the offense becomes inactive
- B. When you protect the offense
- C. When the offense becomes dormant
- D. After the offense is assigned to an analyst
正解：C
解説：
In IBM QRadar SIEM V7.5, events or flows stop contributing to an offense when the offense becomes dormant. Here's how it works:
Dormant Offense: An offense becomes dormant when there is no new activity contributing to it for a specified period. This indicates that the threat or incident has not had any further related events or flows.
Contribution Stoppage: Once an offense is marked as dormant, no additional events or flows are added to it, which helps in managing the offense lifecycle and resources within QRadar.
This behavior helps in distinguishing between active and inactive threats, allowing security analysts to focus on ongoing incidents.
Reference
The QRadar SIEM administration and user guides provide detailed explanations of offense management, including the conditions under which offenses become dormant and how this affects event and flow contributions.
質問 # 32
An administrator wants to export a list of events to a CSV file. Which items are in the default columns of the search result?
- A. Protocol. Storage Time, Destination Port, Source Port
- B. Event Name. Application, Username, Log Source
- C. Username. Source Port. Event Count, Magnitude
- D. Log Source. Event Count. High Level Category. Related Offense
正解：D
解説：
When exporting a list of events to a CSV file in IBM QRadar SIEM V7.5, the default columns included in the search result typically are:
Log Source: The origin of the log data.
Event Count: The number of events.
High Level Category: The broad classification of the event.
Related Offense: The associated offense ID or description.
These columns provide a comprehensive overview of the events, helping analysts quickly understand the context and significance of the data.
Reference
IBM QRadar SIEM documentation provides details on the default columns included in search results and their significance in event analysis.
質問 # 33
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