easyMultiple Choice
350-401 Practice Question: Executes the following command on Router R5: R5#…
A network engineer executes the following command on Router R5:
R5# show ip sla monitor configuration 4 IP SLAs Monitor Configuration
Entry number: 4 Owner: Tag: Type of operation to perform: udp-jitter Target address: 192.168.5.10 Target port: 16384 Source address: 192.168.5.1 Source port: 0 Type Of Service parameter: 0x0 Request size (ARR data portion): 32 Operation timeout (milliseconds): 5000 Frequency (seconds): 60 Next Scheduled Start Time: Start Time already passed Group Scheduled : FALSE Life (seconds): Forever Entry Ageout (seconds): never Recurring (Starting Everyday, Starting Time: 00:00:01) Status of entry (SNMP RowStatus): Active Threshold (milliseconds): 5000 Distribution Statistics: Number of statistic hours kept: 2 Number of statistic distribution buckets kept: 1 Statistic distribution interval (milliseconds): 20 Enhanced History:
Based on this output, what type of IP SLA operation is configured?
⚠ Common exam trap
Cisco often tests the ability to distinguish IP SLA types by key fields in the output, and the trap here is that candidates may overlook the explicit 'Type of operation to perform: udp-jitter' line and instead focus on the target port number (16384) or source address, mistakenly assuming it is a TCP connect or HTTP get operation.
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
✓
UDP jitter
The command output explicitly shows 'Type of operation to perform: udp-jitter', which confirms that the IP SLA operation is configured as UDP jitter. This operation measures round-trip delay, one-way delay, jitter, and packet loss by sending UDP packets to the target address and port (192.168.5.10:16384). The presence of jitter-specific fields like 'Threshold (milliseconds)' and 'Statistic distribution interval (milliseconds)' further validates this type.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ICMP echo
Why it's wrong here
Wrong because the IP SLA operation type is explicitly 'udp-jitter', not 'icmp-echo'. ICMP echo uses Internet Control Message Protocol echo requests to test reachability and round-trip time, but it does not send a sustained stream of timed packets, so it cannot accurately measure jitter. The configuration in the output would show 'type icmp-echo' if this were the correct answer, but it shows 'udp-jitter' instead.
- ✓
UDP jitter
Why this is correct
Correct. The output explicitly states the operation type is 'udp-jitter'. This IP SLA operation sends a series of UDP packets with sequence numbers and timestamps to a destination port, then compares send and receive times to calculate one-way delay, jitter, and packet loss. It is commonly used to emulate voice or video traffic and assess network quality for real-time applications.
- ✗
TCP connect
Why it's wrong here
Wrong because a TCP connect IP SLA operation uses a TCP three-way handshake to a specified port to measure connection setup time, not UDP. The configured operation is 'udp-jitter', which generates continuous UDP datagrams to a destination port and analyzes timing parameters. TCP connect does not measure jitter because handshake packets are not sent at fixed intervals with timestamps for inter-packet delay variation.
- ✗
HTTP get
Why it's wrong here
Wrong because an HTTP get operation retrieves a web page or object over TCP (typically port 80 or 443) and measures HTTP response time, not real-time jitter. The IP SLA type here is explicitly 'udp-jitter', not 'http-get'. An HTTP get probe sends sporadic requests and does not generate a fixed-rate UDP packet stream, so it cannot assess network jitter for voice or video.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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