Discuss Splunk SPLK-1002 Exam Topic 9 Question 115

A field alias is created where field1---fieid2 and the Overwrite Field Values checkbox is selected.

What happens if an event only contains values for fieid1?

Afield2 values are removed from the events.

Bfield1 and field2 values are merged.

Cfield2 values are unchanged.

Dfield2 values are replaced with the value of the field1.

Suggested Answer: D

The correct answer is D. field2 values are replaced with the value of the field1.

A field alias is a way to associate an additional (new) name with an existing field name. A field alias can be used to normalize fields from different sources that have different names but represent the same data. Field aliases can also be used to rename fields for clarity or convenience1.

When you create a field alias in Splunk Web, you can select the Overwrite Field Values option to change the behavior of the field alias. This option affects how the Splunk software handles situations where the original field has no value or does not exist, as well as situations where the alias field already exists as a field in your events, alongside the original field2.

If you select the Overwrite Field Values option, the following rules apply:

If the original field does not exist or has no value in an event, the alias field is removed from that event.

If the original field and the alias field both exist in an event, the value of the alias field is replaced with the value of the original field.

If you do not select the Overwrite Field Values option, the following rules apply:

If the original field does not exist or has no value in an event, the alias field is unchanged in that event.

If the original field and the alias field both exist in an event, both fields are retained with their respective values.

Therefore, if you create a field alias where field1---field2 and select the Overwrite Field Values option, and an event only contains values for field1, then the value of field2 will be replaced with the value of field1.

About calculated fields

About field aliases

Create field aliases in Splunk Web

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27 comments · newest first

Emeline 9 months ago

Wait, are you sure about that? Sounds odd!

Shay 10 months ago

I think it's A, field2 values should be removed.

Colette 10 months ago

Definitely D, field2 gets replaced by field1.

Lamar 10 months ago

Not so sure, could it be C instead?

Rory 10 months ago

Yeah, I’m with you on D, makes sense.

Erasmo 11 months ago

I’m confused about this one. I thought field2 would remain unchanged if field1 had a value, but I can't recall the exact details.

Jutta 11 months ago

I feel like I read that if you select "Overwrite Field Values," it would replace field2 with field1. So maybe it's D?

Farrah 11 months ago

I'm not entirely sure, but I remember something about merging fields in a similar question. Could it be option B?

Leota 11 months ago

I think if field1 has a value and field2 doesn't, it might replace field2 with field1's value, right?

Cherelle 11 months ago

Ah, I see. If field1 has a value but field2 doesn't, then field2 would likely be replaced with the value of field1. That makes sense.

Albina 12 months ago

I'm a bit confused on this one. I'll need to review the details of how field aliases and overwrite settings work.

Kirby 12 months ago

I think the key here is the "Overwrite Field Values" checkbox. That's going to be important in determining the outcome.

Francoise 12 months ago

Okay, let's see. If field1 has a value but field2 doesn't, what would happen to field2? I'm not sure, but I'll try to reason it out.

Claribel 1 year ago

Hmm, this seems like a tricky one. I'll need to think it through carefully.

Kati 1 year ago

D all the way! That's the only option that makes sense given the information provided. Gotta love these field alias questions, they really keep you on your toes.

Pamella 1 year ago

I agree with Art, D seems like the most logical choice.

Stephen 1 year ago

This is a tricky one, but I'm betting on C. The field2 values should remain unchanged if field1 is the only one with values.

Art 1 year ago

But if field2 values are replaced with field1, wouldn't that make more sense?

Craig 1 year ago

I'm gonna go with B. Merging field1 and field2 seems like the logical choice here.

Amie 9 months ago

↳ replying to Craig

C could be possible if field2 stays unchanged.

Juan 9 months ago

↳ replying to Craig

I lean towards A. Removing field2 seems safer.

Brunilda 9 months ago

↳ replying to Craig

I’m not so sure. What about D?

Olene 10 months ago

↳ replying to Craig

I think B is a good choice too. Merging makes sense.

Katina 1 year ago

I disagree, I believe the answer is A.

Art 1 year ago

I think the answer is D.

Kallie 1 year ago

Hmm, I think the answer is D. The field2 values should be replaced with the value of field1 since the Overwrite Field Values checkbox is selected.

Cherry 1 year ago

↳ replying to Kallie

I agree, the field2 values will be replaced with the value of field1.

Splunk SPLK-1002 Exam - Topic 9 Question 115 Discussion