Which Protocol Uses TCP Port 21 by Default

question 44

Multiple Choice

Which protocol uses TCP port 21 by default?

• A) FTP
• B) ARP
• C) IMAP
• D) ICMP

Comprehend the functionality and usage of the forcing function in PLC programming.

Understand the basic functions and types of relays.

Recognize the operation principles of different types of sensors.

Comprehend the concepts of magnetic switches and their activation mechanisms.

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Definitions:

Total Sum Of Squares

A measure of the total variation within a dataset, calculated as the sum of squared differences from the mean.

ANOVA Table

A table used to summarize the components of variance analysis, helping to determine whether there are differences among group means in a dataset.

Partial Anova Table

A table that summarizes the analysis of variance, focusing on specific factors while controlling for others in the model.

Mileage

Indicates the distance that a vehicle can travel per unit of fuel.