During routine operation and maintenance, an engineer checks the IGMP configuration on RTA.

Comprehensive and Detailed Step-by-Step Explanation:

1. Understanding IGMP (Internet Group Management Protocol):

IGMP is used in multicast networking to manage membership of devices in multicast groups.

Key parameters in the configuration provided:

Interface IP Address:192.168.1.1

IGMP Version:2

Query Interval (Configured):60 seconds

Maximum Query Response Time:10 seconds

Querier Address:192.168.1.1

2. Analysis of Each Statement:

Option A: The IP address of the interface is 192.168.1.1.

Correct (True Statement).

The configuration clearly shows that the IP address of the interface is 192.168.1.1.

Option B: The maximum response time to Query messages is 10s.

Correct (True Statement).

The configuration explicitly mentions: Value of maximum query response time for IGMP: 10 s.

Option C: The interval for sending Group-Specific Query messages is 60s.

Incorrect (False Statement).

The 60-second value refers to thequery interval, which is the time interval betweengeneral queriessent by the querier.

The interval forgroup-specific queriesis not specified in this configuration. It is determined dynamically based on the multicast environment and is usually shorter than the general query interval.

Option D: The IGMP version is IGMPv2.

Correct (True Statement).

The configuration specifies: Current IGMP version is 2.

3. Why Option C is False:

The 60-second value is forgeneral query interval, not group-specific query interval.

The statement misinterprets the configuration, making itfalse.

4. Summary:

Correct Answer:C (The interval for sending Group-Specific Query messages is 60s).