Review questions

What is the primary key field?

How many filed in the document?

Which filed represented by array?

Which filed represented as embedded document

How many embedded document in the main

document?

For what value, the instruction "skills.

$0$

$"$

$$is

denudes?

For what value, the instruction "address.street"

is denudes?

$\_$

id: ObjectId

$($

$"$

$32521$

df

$3$

f

$4948$

bd

$2$

f

$54218$

$"$

$)$

$,$

firstName: "John",

lastName: "King",

email:

$"$

john.kingeabc.com",

salary:

$"$

$3$

$$

$$

e

$0$

$"$

$,$

DoB: new Date

$($

$\text{'}$

Mar

$24$

$,$

$2011$

$\text{'}$

$)$

$,$

skills:

$[$

$"$

Angular

$"$

$,$

$"$React$",$ "MongoDB"

$]$

$,$

address: :

street: "Upper Street",

house:

$"$

No

$1$

$"$

$,$

city: "New York",

country: "USA"

$\}$

$\}$