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WGU Data Management - Foundations Exam - Topic 2 Question 1 Discussion

Actual exam question for WGU's WGU Data Management - Foundations exam
Question #: 1
Topic #: 2
[All WGU Data Management - Foundations Questions]

How many bytes of storage does a BIGINT data type hold in MySQL?

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Suggested Answer: D

In MySQL, the BIGINT data type is a 64-bit integer that requires 8 bytes (64 bits) of storage. It is used to store large numerical values beyond the range of INT (4 bytes).

Option A (Incorrect): 1 byte corresponds to TINYINT, which can store values from -128 to 127.

Option B (Incorrect): 3 bytes is not a standard integer storage size in MySQL.

Option C (Incorrect): 4 bytes corresponds to INT, which has a range of -2,147,483,648 to 2,147,483,647.

Option D (Correct): BIGINT takes 8 bytes and supports a massive range of numbers from -2^63 to 2^63 -1.


by Germaine at Nov 24, 2025, 10:06 AM

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Maryln
10 hours ago
Yup, 8 bytes for BIGINT, no doubt about it.
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Christiane
6 days ago
Totally agree, it's definitely 8 bytes!
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Talia
11 days ago
BIGINT in MySQL holds 8 bytes.
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Amie
16 days ago
D is the way to go. 8 bytes is the only option that makes sense.
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Burma
21 days ago
Haha, 1 byte for a BIGINT? What is this, a database for ants?
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Alise
26 days ago
D, no doubt. Anything less than 8 bytes would be a "TINYINT" at best.
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Blondell
1 month ago
I can't recall exactly, but I thought BIGINT was 4 bytes. I need to double-check my notes on data types.
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Stephaine
1 month ago
I’m pretty confident that BIGINT is 8 bytes. I remember it being the same size as a double in some contexts.
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Merilyn
1 month ago
I feel like I saw a similar question in our practice tests. I think it was 4 bytes, but now I’m doubting myself.
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Elza
2 months ago
I think BIGINT is 8 bytes, but I’m not completely sure. I remember it being one of the larger types.
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Vincent
2 months ago
I'm a bit confused on the exact size of BIGINT. I know it's a larger integer type, but I can't recall the specific number of bytes. I'll have to guess and go with C.
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Goldie
2 months ago
I remember learning that BIGINT is an 8-byte data type, so I'm confident D is the correct answer.
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Arlyne
2 months ago
D) 8 bytes is the correct answer. That's the standard size for a BIGINT in MySQL.
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Annice
2 months ago
Okay, let me think this through step-by-step. BIGINT is a larger integer type than INT, which is 4 bytes. So it's likely either 8 bytes or 16 bytes. I'll go with D to be safe.
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Floyd
3 months ago
Wait, are you sure? I thought it was 4 bytes.
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Callie
3 months ago
Definitely D. I'd be worried if a BIGINT only took 1 or 3 bytes!
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Stephaine
3 months ago
Hmm, I'm a little unsure about this one. I know BIGINT is a larger integer type, but I can't remember the exact size. I'll have to think it through.
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Ira
3 months ago
I'm pretty sure BIGINT is an 8-byte data type, so I'll go with D.
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Eric
2 months ago
I think it's D too. BIGINT is 8 bytes.
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