Which of the following statements about the list c are false?
a. You reference a list element by writing the list’s name followed by the ele-ment’s index (that is, its position number) enclosed in square brackets ([], known as the subscription operator).
c = [-45, 6, 0, 72, 1543]
b. The names c’s elements are c[0], c[1], c[2], c[3] and c[4].
c. The length of c is 5.
d. All of the above statements are true.
d. All of the above statements are true.
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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?
The given definition describes which of the following terms?
A graph without self-loop and parallel edges in it. a. A simple graph b. A directed graph c. An undirected graph d. A weighted graph
Scroll bars appear in Microsoft Office application windows when the workspace is shorter or narrower than the window.?
Answer the following statement true (T) or false (F)
The __________ selection statement performs one of many different actions, depending on the value of an expression.
a) if b) when c) if…else d) switch