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MongoDB Associate Database Administrator Questions 36–40 (page: 9)

Updated On: 9-Feb-2026

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QUESTION: 36

Dada una coleccion, cuales devuelve con la siguiente query db.coleccion.find({nombre:"ruben",apellido:"gomez"},{nombre:l,apellido:l,aficion:l});

{ "-id" : Objectld("580a42b5dfblb5al7427d302"), "nombre" : "ruben", "apellido" : "gomez", "aficion" : v u "flipar" }
{ "_id" : Objectld("580a42acdfblb5al7427d301"), "nombre" : "Luis", "apellido" : "gomez", "aficion" : u "flipar" }
{ "_id" : Objectld("580a42acdfblb5al7427d301"), "nombre" : "ruben", "apellido" : "Pablo" , "aficion" : u "flipar"}
{ "_id" : Objectld("580a42acdfblb5al7427d301"), "nombre" : "ruben", "apellido" : "gomez" >

Answer(s): A,D

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QUESTION: 37

MongoDB is

None of the above
Object-oriented DBMS
Relational DBMS
Document-oriented DBMS

Answer(s): D

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QUESTION: 38

Which are the ONLY ways to project portions of an array?

$slice
$
All of the above
$ elemMatch

Answer(s): C

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QUESTION: 39

In a replicated cluster, which of the following node would only be used during an election?

arbiter
primary
hidden
secondary

Answer(s): A

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QUESTION: 40

Which of the following node is used during election in a replication cluster?

primary
arbiter
hidden
secondary

Answer(s): B

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