Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location US
Mob_nav_barsMENU

MongoDB C100DBA Exam - Topic 1 Question 40 Discussion

Consider a collection posts which has fields: Jd, post_text, post_author, post_timestamp, post_tags etc. Which of the following query retrieves ONLY the key named post_text from the first document retrieved?
A) db.posts.finOne({},{_id:0, post_text:1})
B) db.posts.findOne({post_text: 1})
C) db.posts.find({},{_id:Of post_text:1})
D) db.posts.finOne},{post_text:l})

MongoDB C100DBA Exam - Topic 1 Question 40 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 40
Topic #: 1
[All C100DBA Questions]

Consider a collection posts which has fields: Jd, post_text, post_author, post_timestamp, post_tags etc. Which of the following query retrieves ONLY the key named post_text from the first document retrieved?

Show Suggested Answer Hide Answer
Suggested Answer: A

by Evangelina at May 03, 2022, 07:20 AM

Limited Time Offer

25%

Off

Get Premium C100DBA Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

0/2000 characters
Submit Cancel
Serina
8 months ago
Wait, can you really use finOne? That sounds off.
upvoted 0 times
...
Arthur
9 months ago
D is definitely wrong, looks like a mess!
upvoted 0 times
...
Lorean
9 months ago
C has a typo, it should be _id: 0 instead of _id:Of.
upvoted 0 times
...
Nickole
9 months ago
I think B looks right too, but it’s not for retrieving only one document.
upvoted 0 times
...
Shantell
9 months ago
A is the correct syntax for MongoDB.
upvoted 0 times
...
My
9 months ago
I’m pretty sure option D has a typo with "finOne" and "l" instead of "1". That can't be right!
upvoted 0 times
...
Marti
9 months ago
Option C seems off to me; I don't think you can use "Of" like that in a query.
upvoted 0 times
...
Brunilda
9 months ago
I remember practicing with similar queries, and I feel like findOne should be used, but I can't recall the exact syntax for it.
upvoted 0 times
...
Rikki
9 months ago
I think option A looks familiar, but I'm not entirely sure if it retrieves only post_text correctly.
upvoted 0 times
...
Pearly
9 months ago
Okay, let me see. Reports and widgets - that makes sense. I remember learning about those in the dashboard module. I think I've got this one figured out.
upvoted 0 times
...
Emmanuel
9 months ago
And the SBC is likely providing an edge proxy function, acting as the entry and exit point for the provider's network. That makes sense given its role as the source and destination.
upvoted 0 times
...
Mona
9 months ago
I'm not sure about this one. I'll need to think it through carefully.
upvoted 0 times
...
Essie
9 months ago
Hmm, I'm not totally sure about this one. The ipconfig command is related to network settings, but I'm not sure if it's specifically for displaying a client's address. I might need to think about this one a bit more.
upvoted 0 times
...
Iluminada
9 months ago
Okay, let me see here. Gavin is performing a website security audit, and the question is asking about the tool he's most likely using. I'm thinking Nikto or Nmap are the best bets, but I'll have to double-check the details of each tool to make sure I'm choosing the right one.
upvoted 0 times
...

Save Cancel