Atechnician is trying to use the tablet to control the iot device digital lamp. the technician tries to login to the registration server with username admin2 and password admin2. however, the access is not successful. what are two problems? (choose two.)

In the scenario in which a technician is trying to use the tablet to control the IoT device digital lamp, but the access is not successful the two problems are:
The registration service on the server is off.
The digital lamp is using the wrong credential to connect to the registration server.

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.