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Topic: IP SLASwitch
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4.0 Network Assurance

IP SLA Practice Questions

IP SLA operation types, responders, and object tracking for route failover.

One solved question, so you can see how these are marked

Which IP SLA operation measure enables the tracking of round-trip time, jitter, and packet loss for VoIP quality verification using synthetic UDP traffic?

udp-jitter

udp-jitter measures one-way and round-trip delay, jitter, and packet loss specifically useful for voice/video assessments.

Every question in the set below is marked like this. The answers stay hidden until you pick one.

All 6 IP SLA questions in this set

Answers and explanations appear when you work through the set above.

  1. When combining IP SLA with Static Routing for route failover, which command links interface static routes to an SLA probe status?

    • ip route 0.0.0.0 0.0.0.0 10.1.1.1 track 1
    • ip sla schedule 1 life forever start-time now
    • track 1 ip sla 1 reachability
    • ip route 0.0.0.0 0.0.0.0 10.1.1.1 250

  2. Why is the ip sla responder command configured on the target destination device during advanced IP SLA testing?

    • It encrypts the SLA test packets with AES-256 so that the measurement results cannot be spoofed.
    • It timestamps probes at the target so the target's own processing time is removed from the results.
    • It creates dynamic loopback interfaces on the target where each probe can terminate.
    • It lets the SLA probe packets bypass any access control lists applied on the target device's interfaces.

  3. Which IP SLA operation type measures metrics such as one-way delay, packet loss, and latency variations (jitter) for real-time traffic analysis?

    • icmp-echo
    • tcp-connect
    • udp-jitter
    • dhcp

  4. How does a static route configured with object tracking (ip route 0.0.0.0 0.0.0.0 192.168.1.1 track 10) respond when the monitored IP SLA operation fails?

    • The static route's metric is doubled automatically so that a backup route becomes preferred.
    • The route is removed from the RIB, so a floating static backup route can take over.
    • The egress interface is placed into err-disabled state until the probe recovers.
    • The router sends ICMP unreachable messages to every endpoint that uses the default route.

  5. Which metrics are actively measured when deploying an IP SLA UDP Jitter operation between a Cisco router and a remote IP SLA Responder?

    • BGP AS_PATH lengths and route flap frequency along the path to the responder.
    • One-way delay, round-trip time, packet loss, and jitter in each direction.
    • CPU utilization and power supply efficiency on the remote responder device.
    • Duplex mismatches and CRC error counters on each switch port along the path.

  6. Which metrics does an IP SLA HTTP operation measure against a web server?

    • Optical signal loss in decibels on the fiber links between the router and the web server.
    • DNS lookup time, TCP connection time, and HTTP transaction (page retrieval) time.
    • Broken JavaScript tags and HTML errors in the pages returned by the web server.
    • Timeouts in 802.1X RADIUS authentication for clients reaching the web server.