300-410 Practice Question: Which IP SLA operation type uses ICMP Echo…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  UDP Jitter

  Why it's wrong here

  UDP Jitter sends UDP probe packets to measure jitter and packet loss, not ICMP Echo Request/Reply, so it cannot satisfy the stated requirement. It is tempting because it also measures round-trip latency, and would be the correct choice when the goal is jitter and loss measurement between devices.

• ✓

  ICMP Echo

  Why this is correct

  The ICMP Echo operation sends ICMP Echo Request packets and measures the time until Echo Reply returns, yielding round-trip time. Other IP SLA types, such as UDP Jitter or HTTP, use different protocols and cannot measure ICMP-based RTT.

• ✗

  TCP Connect

  Why it's wrong here

  TCP Connect performs a three-way handshake to a target port, measuring connection setup time rather than ICMP Echo round-trip time. It is tempting because it also reports round-trip latency, and would be correct when verifying TCP service availability on a specific port.

• ✗

  HTTP

  Why it's wrong here

  HTTP measures the time to retrieve a URL from a web server, using HTTP requests rather than ICMP Echo Request/Reply packets. It is tempting because it also yields round-trip timing, and would be correct when monitoring web server responsiveness or URL availability.

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