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CNIT 34220 Exam 1 Questions And Answers 100% Solved.
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CNIT 34220 Exam 1 Questions And Answers 100% Solved.
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CNIT 34220CNIT 34220 Exam 1 Questions And
Answers 100% Solved.
T/F: 192.168.1.IN-ADDR.ARPA is the typical name of the reverse address zone for the
192.168.1.0/24 network. - ✔✔✔ - False
T/F: ICANN is responsible for creating top-level domains. - ✔✔✔ - True
T/F: Best practice is to use your Internet DNS domain for your Active Directory. - ✔✔✔ - False
T/F: The DNS system would take a disproportionate amount of the Internet bandwidth if it were
not for caching. - ✔✔✔ - True
T/F: From a practical perspective the DNS name space is larger than anyone should need. -
✔✔✔ - True
T/F: To be considered authoritative, a DNS server must store records persistently. - ✔✔✔ - True
T/F: You must provide three DNS servers that are available 24/7 to register a second level
domain name. - ✔✔✔ - False
PTR records should only be found in ________________ name resolution zones. - ✔✔✔ - reverse
T/F: Root servers should only be consulted when a DNS server doesn't know the address of a
DNS server that is authoritative for the domain in question. - ✔✔✔ - True
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T/F: PTR Records are used exclusively in forward name resolution tables. - ✔✔✔ - False
T/F: DNS zones and domains are synonymous. - ✔✔✔ - False
T/F: When using a relay host (forwarder), e-mail bounces can come from the origin host, the
relay host, or the destination host. - ✔✔✔ - False
T/F: When using a relay host you should limit the hosts that it will service. - ✔✔✔ - True
T/F: E-mail is a real-time communication technique. - ✔✔✔ - False; store and forward
T/F: IMAP is a means of retrieving mail on a server from a client. - ✔✔✔ - False; accessing
T/F: SMTP is used to deliver mail between hosts. - ✔✔✔ - True
Blacklisting services (MAPS, Spamhaus SBL, etc.) typically block specific e-mail from: addresses. -
✔✔✔ - False; content filtering
T/F: SMTP session verification uses DNS to verify which servers should send mail for a domain. -
✔✔✔ - True
T/F: A valid e-mail address contains a user name and a DNS entry. - ✔✔✔ - True
CNIT 34220 Page 2
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