hardMultiple Choice
300-410 Practice Question: The default number of packets sent per IP SLA UDP…
What is the default number of packets sent per IP SLA UDP Jitter operation?
⚠ Common exam trap
300-410 often tests the default parameters of IP SLA operations, and candidates frequently confuse the default packet count for UDP jitter (10) with that of other operations like ICMP jitter (20) or with commonly configured values (100).
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
10
The default number of packets sent per IP SLA UDP Jitter operation is 10. This is defined in the Cisco IOS IP SLA configuration, where the 'udp-jitter' operation type uses a default packet count of 10 for each probe. The jitter operation sends these packets at a configurable interval (default 20 ms) to measure delay, jitter, and packet loss.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
1
Why it's wrong here
One packet cannot produce the jitter, latency and loss statistics an operation needs, since jitter is calculated from the variation between successive round-trip times. It is tempting because a single probe suffices for simple reachability checks such as ICMP Echo, but UDP Jitter requires a statistically meaningful sample.
- ✓
10
Why this is correct
Cisco IP SLA UDP Jitter operations transmit 10 packets per operation by default, giving the sample needed to compute delay, jitter and packet loss statistics. The frequency parameter controls how often the operation runs, not the packet count.
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20
Why it's wrong here
The default packet count for an IP SLA UDP jitter operation is 10, not 20, so this value misstates the configured default. Twenty is tempting because it matches the default for some other IP SLA operation types, and packet counts are configurable per operation, making the figure easy to confuse.
- ✗
100
Why it's wrong here
One hundred packets is not the default; the default is ten packets per operation. A larger count is configured deliberately when finer statistical confidence in jitter and loss measurements is required, but it is not applied automatically, so it fails to match the documented default value.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.