Answer:
find()
Explanation:
When dealing with MongoDB the method that needs to be used in this scenario would be the find() method. This method basically returns all of the records that exist in the collection on which it is called, if no parameter is passed. If you pass a parameter/expression then only the records that match completely the expression will be returned to the user, otherwise nothing is returned. For example, on a database (db) we would call the following
db.find() ... This will return all records
db.find({specific}) ... This will return only the records that match specific.
Answer:
the answer is a.they rely on airwaves for broadcasting
Explanation:
i just took this test on brainly
Answer:
Network switch has been disconnected or switched off
Explanation:
An organization networking can be done by using several switches, routers, modems, etc. A network switch works between modem and systems, connecting the systems to the network.
A network switch is a multi-port switch that connects multiple devices to the network. mostly every floor has a network switch connected with the floor systems.
When a system is connected to switch, its indicator light on NIC is active. but as per the scenario, no system has active indicator lights on NIC, which means that there is some problem with the switch or switch is powered off.
