Do you feel a LastName field would be a good candidate for a lookup field? Why or why not?
What will be an ideal response?
LastName would generally be a poor field to convert to a lookup field, given the large number of possible last names. If you had a customer with a new last name, they would first need to be added to the data source for the lookup before they could be added to a table.
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Discuss how macros can enhance the overall user experience
What will be an ideal response?
You should have read permission for the /etc/passwd file. To answer the following questions, use cat or less to display /etc/passwd. Look at the fields of information in /etc/passwd for the users on the local system.
a. Which character is used to separate fields in /etc/passwd? b. How many fields are used to describe each user? c. How many users are on the local system? d. How many different login shells are in use on your system? (Hint: Look at the last field.) e. The second field of /etc/passwd stores user passwords in encoded form. If the password field contains an x, your system uses shadow passwords and stores the encoded passwords elsewhere. Does your system use shadow passwords?