Hotspot Question
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Each correct selection is worth one point.

Correct Answer:

Explanation:
* No.
With a recursive name query , the DNS client requires that the DNS server respond to the client with either the requested resource record or an error message stating that the record or domain name does not exist. The DNS server cannot just refer the DNS client to a different DNS server.
* No. * Yes.
An iterative name query is one in which a DNS client allows the DNS server to return the best answer it can give based on its cache or zone data. If the queried DNS server does not have an exact match for the queried name, the best possible information it can return is a referral (that is, a pointer to a DNS server authoritative for a lower level of the domain namespace). The DNS client can then query the DNS server for which it obtained a referral. It continues this process until it locates a DNS server that is authoritative for the queried name, or until an error or time-out condition is met.
Example:

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This question requires that you evaluate the underlined text to determine if it is correct.
The NTP value in a resource record indicates a length of time that other DNS servers use to determine how long to cache information for a record before expiring and discarding it.
Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed'' if the underlined text makes the statement correct.

• A.TTL
• B.GPS
• C.SOA RR
• D.No change is needed

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Which protocol is a transport layer protocol?

• A.FTP
• B.IP
• C.UDP
• D.ASCII

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Which of the following uses pointer records and A records?

• A.DNS Server
• B.NAT Server
• C.IDS
• D.IPS

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HOTSPOT
For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.

Correct Answer:

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Verification: *