Which of the following can we use to secure and encrypt communications between the MQTT clients and the MQTT server?
TLS.
TCP.
HTTPS.
Which is the default port number for MQTT over TLS?
1883.
9883.
8883.
If we specify
true
as the value for therequire_certificate
option of the Mosquitto configuration file:Clients that want to connect to the MQTT server will require a client certificate.
Clients that want to connect to the MQTT server won't require a client certificate.
Clients that want to connect to the MQTT server can provide an optional client certificate.
Which of the following utilities allows us to generate an X.509 digital certificate?
OpenX509.
OpenSSL.
TLS4You.
When we use MQTT over TLS:
There is just a small bandwidth overhead but no processing overhead at all compared with MQTT over TCP without TLS.
There are both bandwidth and processing overheads compared with MQTT over TCP without TLS.
There is no overhead compared with MQTT over TCP without TLS.
Argentina
Australia
Austria
Belgium
Brazil
Bulgaria
Canada
Chile
Colombia
Cyprus
Czechia
Denmark
Ecuador
Egypt
Estonia
Finland
France
Germany
Great Britain
Greece
Hungary
India
Indonesia
Ireland
Italy
Japan
Latvia
Lithuania
Luxembourg
Malaysia
Malta
Mexico
Netherlands
New Zealand
Norway
Philippines
Poland
Portugal
Romania
Russia
Singapore
Slovakia
Slovenia
South Africa
South Korea
Spain
Sweden
Switzerland
Taiwan
Thailand
Turkey
Ukraine
United States