The records in which file are provided to support reverse DNS lookups?

A. arpa.addr
B. db.addr
C. cname.addr
D. dns.addr


Answer: B

Computer Science & Information Technology

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please answer the question below:


(a) Prove that the ? coefficient is equal to 1 if and only if f11 = f1+ = f+1.
(b) Show that if A and B are independent, then P(A, B) × P(A, B) =
P(A, B) × P(A, B).
(c) Show that Yule’s Q and Y coefficients
(d) Write a simplified expression for the value of each measure shown in
Tables 6.11 and 6.12 when the variables are statistically independent.

Computer Science & Information Technology

Which of the following is a common protocol used to send email?

A. POP3 B. FTP C. SFTP D. SMTP

Computer Science & Information Technology

Due to the popularity of self-paced training materials and online, interactive training delivery methods, the role of support specialists as trainers is likely to disappear in the next few years.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

How do you hide details in a report?

A) Click Hide details in the Grouping & Totals group on the Design tab B) Close the detail section in Design view C) Click Hide details in the Header/Footer Options D) Click Hide details in Page Options

Computer Science & Information Technology