Ralph is attempting to access a Domain Name System (DNS) server located on the other side of a router, but his attempt fails with an error stating that the destination port UDP 53 is unreachable. His first step in troubleshooting the problem is to try using the nslookup utility to access that specific DNS server. This too fails. Next, he uses the ping utility with the DNS servers Internet Protocol (IP) address. The ping test is successful, indicating that the server is up and running. Which of the following are possible causes of the problem? (Choose all that apply.)

IDENTIFYING HARDWARE SOFTWARE NETWORK PROBLEMS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Ralph is attempting to access a Domain Name System (DNS) server located on the other side of a router, but his attempt fails with an error stating that the destination port UDP 53 is unreachable. His first step in troubleshooting the problem is to try using the nslookup utility to access that specific DNS server. This too fails. Next, he uses the ping utility with the DNS server’s Internet Protocol (IP) address. The ping test is successful, indicating that the server is up and running. Which of the following are possible causes of the problem? (Choose all that apply.)

A	The router connecting the networks is not running DNS and will not forward this type of datagram.
B	The DNS process on the remote server is not running.
C	The TCP/IP host configuration on your computer is improperly configured.
D	The TCP/IP host configuration on the DNS server computer is improperly configured.
E	There is a firewall blocking the DNS server’s UTP 53 port.

Explanation:

There is 1 question to complete.

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TROUBLESHOOTING COMPUTER ISSUES

IDENTIFYING HARDWARE SOFTWARE NETWORK PROBLEMS