CIW 1D0-541 Exam - Topic 6 Question 102 Discussion

Actual exam question for CIW's 1D0-541 exam

Question #: 102
Topic #: 6

Consider the Information Engineering diagram shown in the exhibit. Building_ID, R_ID,

Room_Count and Room_Num are integer numbers, whereas Bldg_Name, Location and

Res_Name are all represented by variable-length strings with a maximum of 20 characters. Which

SQL statement best implements the RESIDENT relation shown in this diagram?

ACREATE TABLE RESIDENT (
R_ID INTEGER NULL PRIMARY KEY,
Room_Num FLOAT,
Res_Name VARCHAR,
Building_ID INTEGER NULL,
FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));

BCREATE TABLE RESIDENT (
R_ID INTEGER NOT NULL PRIMARY KEY,
Room_Num BINARY,
Res_Name VARCHAR (20),
Building_ID INTEGER NOT NULL,
FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));

CCREATE TABLE RESIDENT (
R_ID INTEGER NOT NULL PRIMARY KEY,
Room_Num INTEGER,
Res_Name VARCHAR (20),
Building_ID INTEGER NOT NULL);

DCREATE TABLE RESIDENT (
R_ID INTEGER NOT NULL PRIMARY KEY,
Room_Num INTEGER,
Res_Name VARCHAR (20),
Building_ID INTEGER NOT NULL,
FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));

Show Suggested Answer

Suggested Answer: B

by Hildegarde at Oct 20, 2024, 07:27 PM

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Bette

3 months ago

I’m surprised they even included B as an option.

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Dell

4 months ago

No way, D is definitely the right one!

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Providencia

4 months ago

Wait, why is Room_Num INTEGER in D? Shouldn't it be FLOAT?

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Wilburn

4 months ago

Totally agree, D covers all the requirements!

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Yvonne

4 months ago

I think option D is the best choice.

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Yolando

4 months ago

I practiced a similar question, and I think D is the best choice because it has all the correct data types and the foreign key constraint.

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Annice

5 months ago

I'm not completely sure, but I feel like we need to include the FOREIGN KEY for Building_ID to maintain referential integrity.

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Vashti

5 months ago

I remember that Room_Num should be an integer, not FLOAT or BINARY. That rules out A and B for sure.

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Christa

5 months ago

I think the primary key should be NOT NULL, so maybe options B or D are better?

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Bambi

5 months ago

This is a good opportunity to demonstrate my SQL knowledge. I'll carefully evaluate each choice and select the one that best matches the diagram.

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Son

5 months ago

I think option D looks good, but I'll want to verify that the variable-length string requirements are met for the Bldg_Name, Location, and Res_Name columns.

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Rashida

5 months ago

The key is to ensure the foreign key constraint is set up correctly to link the RESIDENT table to the BUILDING table. I'll pay close attention to that part.

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Ailene

5 months ago

Hmm, I'm a bit unsure about the Room_Num data type. Should it be an integer or a float? I'll need to double-check the information in the diagram.

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Dorothy

5 months ago

This looks straightforward. I'll carefully review the data types and constraints to make sure the table definition matches the requirements.

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Melina

10 months ago

I'm just glad they didn't ask about the BUILDING table. That would have been a real foundation-al problem!

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Emilio

9 months ago

C) CREATE TABLE RESIDENT (R_ID INTEGER NOT NULL PRIMARY KEY, Room_Num INTEGER, Res_Name VARCHAR (20), Building_ID INTEGER NOT NULL);

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Layla

9 months ago

B) CREATE TABLE RESIDENT (R_ID INTEGER NOT NULL PRIMARY KEY, Room_Num BINARY, Res_Name VARCHAR (20), Building_ID INTEGER NOT NULL, FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));

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Eun

10 months ago

A) CREATE TABLE RESIDENT (R_ID INTEGER NULL PRIMARY KEY, Room_Num FLOAT, Res_Name VARCHAR, Building_ID INTEGER NULL, FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID));

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Melvin

11 months ago

Option A is incorrect because the Room_Num column should be an integer, not a float.

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Ardella

9 months ago

Yes, option D also seems correct with Room_Num as an integer.

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Hildegarde

10 months ago

But option C also has Room_Num as an integer and looks good.

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Basilia

10 months ago

I agree, option B looks like the correct choice with Room_Num as BINARY.

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Corazon

10 months ago

I think option A is incorrect because the Room_Num column should be an integer, not a float.

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Ty

11 months ago

Option C is missing the foreign key constraint to the BUILDING table, which is necessary to maintain data integrity.

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Odelia

11 months ago

Option B is wrong because the Room_Num column should be an integer, not a binary data type.

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Portia

10 months ago

I agree, option B is incorrect because Room_Num should be an integer.

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Hildegarde

10 months ago

I think option A is the correct one.

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Raina

11 months ago

The correct answer is option D. It correctly defines the RESIDENT table with the appropriate data types and the necessary foreign key constraint to link the Building_ID to the BUILDING table.

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