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300-410 Practice Question: The default timer value for the EEM environment…
What is the default timer value for the EEM environment variable 'timer watchdog'?
⚠ Common exam trap
300-410 often tests memorization of default timer values — candidates confuse the EEM timer watchdog default (60s) with other IOS timers like ARP (4 hours) or routing update intervals.
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
✓
60 seconds
The EEM 'timer watchdog' environment variable, when set, causes the EEM policy to be aborted if it runs longer than the specified time. Cisco IOS XE documentation specifies the default value as 60 seconds, and it can be tuned with the event manager environment timer_watchdog command. This prevents runaway policies from consuming CPU indefinitely.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
30 seconds
Why it's wrong here
The EEM watchdog timer defaults to 20 seconds, not 30, so this value would fire the watchdog policy later than intended. It is tempting because 30 seconds is a common polling interval elsewhere in IOS, but the watchdog specifically expects the shorter 20-second default.
- ✓
60 seconds
Why this is correct
The EEM watchdog timer defaults to 60 seconds, the interval after which the watchdog policy fires if no other policy has run, satisfying the stem's request for the default value rather than a configured override.
- ✗
120 seconds
Why it's wrong here
The watchdog timer defaults to 20 seconds, so 120 would delay the watchdog policy far beyond the intended interval. It is tempting because 120 seconds matches other IOS timers, such as some routing or ARP ageing values, but the EEM watchdog uses its own fixed 20-second default.
- ✗
180 seconds
Why it's wrong here
The watchdog timer defaults to 20 seconds; 180 seconds would let the watchdog policy trigger far too late to be useful. It is tempting because 180 seconds appears as a default for unrelated IOS timers, but the EEM watchdog environment variable is set to 20 seconds.
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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
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