Chapter 12, Problem 7RQ

Which type of DNS record identifies an email server? a. AAAA record b. CNAME record c. MX record d. PTR record

Which file holds the methods to be used and the order in which they will be applied forhost name resolution?a. /etc/nsswitch.confb. /etc/resolve.confc. /etc/hostsd. /etc/dns.conf

Which is the preferred location for a spam filter? a. Install the spam filter with the SMTP server. b. Install the spam filter on the POP3 server. c. Install the spam filter on the proxy server. d. Install the spam filter on the local host client.

Which of the following is the most likely cause for missing resource records in a secondary zone?   Group of answer choices Zone transfer issues An invalid entry in the DNS cache Zones that allow dynamic updates Manual DNS cache flushing

Write a small program/script to resolve all DNS hostnames of Southeastern's ranging from 0 to 255 for the third and fourth octet in 147.174.$i.$j/16. Use any language you like (Bash, PowerShell, Python, Java). Paste the contents of your program below.

C. Your client has hired you to change the command-line tool from nslookup to dig since it provides more detailed domain information than nslookup. Which of the following commands will you use to perform a DNS lookup on a domain name? 1.dig google.com 2.dig google.com ANY 3.apt-get install dnsutils 4.dig -x 74.125.21.102

Given the following information. List the two RR records inserted in .com TLD DNS servers which set up authoritative name server for Foo company. • Foo company web domain: foo.com • Foo company authoritative name server: nameserver.foo.com • Foo company authoritative name server IP address: 202.10.20.1

Python language  1 - What modification(s) can you do to the code #1 and code #2 to make the server and client use the TCP Protocol?2 - Modify the server code to send an error to the client if the file requested does not exist.3 - Modify the server code to send an error to the client if the line requested does not exist.4 - Modify the client code to request the first line if the client didn't write a line number in their request. Example req = 'book2.txt'

1. Which of the following is not usually implemented in the server-side code?   a. Routing Code b. All of these are usually implemented in Server-Side Code c. Authentication Logic Code d. User Interface Code   2. True or False. The fetch method can only be used to make GET requests. a. True b. False   3. True or False. Node.js is a asynchronous event-driven framework. This means it can only handle one event at a time a.True b. False   4. When using the router level middleware in express, what must match for the Handler Method to be executed? a. None of these b. Path and URL c. Request and Response d. Method and Path