ITN 101: MODULE 3 TEST QUESTIONS WITH COMPLETE
SOLUTIONS
1) Which of the following is an optional server that receives queries from local clients
but doesn't work to resolve the queries? -- Answer ✔✔ Forwarding DNS server
2) Which one of the following DNS record types holds the name-to-address mapping
for IPv6 addresses? -- Answer ✔✔ AAAA records
3) Which of the following elements in a Domain Name System is a DNS client that
requests information from DNS name servers? -- Answer ✔✔ Resolvers
4) What is the purpose of the TXT (text) DNS resource record? -- Answer ✔✔ Holds
any type of free-form text
5) Brent recently received funding for his fast-food chain in Michigan. As a result, he
hires Angela to set up a top-level domain so that she can start an online delivery
system through his web portal as well. He wants Angela to put a unique domain
name so that his website appears a little different from the other competitors.
Analyze which of the following top level domain names Angela should opt for under
such requirements. -- Answer ✔✔ .biz
, 6) Which of the following sockets will you apply to a standard Telnet port TCP23
where the host has an IP address of 10.43.3.87? -- Answer ✔✔ 10.43.3.87:23
7) You are the DNS administrator and have been tasked to hold alternative names for a
host that is a newly established start-up venturing into the business of ecommerce.
The start-up wants its clients to be directed to the appropriate page whenever they
request for alternative names. Which of the following resource records would you
apply as a DNS administrator in such a case? -- Answer ✔✔ CNAME record
8) Which of the following ports are used by applications such as Telnet, FTP, and
HTTP? -- Answer ✔✔ Well-known ports
9) HCL Industries are keen on allowing its employees with a work-from-home option
for its respective jobs. You have been hired to establish a secure and encrypted
control for remote Windows computers. Which of the following ports will you use
to establish this connection? -- Answer ✔✔ Port 3389
10) The Mosiac Music School has hired Kirk to set up a SIP protocol for a collaborative
multimedia conference session that will be limited to the selected students opting for
music theory. Which of the following ports should he use in such a situation so that
the required encryption can be provided? -- Answer ✔✔ 5061
11) Heroku Industries has a SQL Server database that provides data to clients
throughout its network. It has now asked George, a network engineer, to sort an
issue within the administration branch where the Windows firewall does not allow
access to the users to such databases. Analyze what port should George open up in
the firewall so that the issue is resolved. -- Answer ✔✔ Open up port 1433
SOLUTIONS
1) Which of the following is an optional server that receives queries from local clients
but doesn't work to resolve the queries? -- Answer ✔✔ Forwarding DNS server
2) Which one of the following DNS record types holds the name-to-address mapping
for IPv6 addresses? -- Answer ✔✔ AAAA records
3) Which of the following elements in a Domain Name System is a DNS client that
requests information from DNS name servers? -- Answer ✔✔ Resolvers
4) What is the purpose of the TXT (text) DNS resource record? -- Answer ✔✔ Holds
any type of free-form text
5) Brent recently received funding for his fast-food chain in Michigan. As a result, he
hires Angela to set up a top-level domain so that she can start an online delivery
system through his web portal as well. He wants Angela to put a unique domain
name so that his website appears a little different from the other competitors.
Analyze which of the following top level domain names Angela should opt for under
such requirements. -- Answer ✔✔ .biz
, 6) Which of the following sockets will you apply to a standard Telnet port TCP23
where the host has an IP address of 10.43.3.87? -- Answer ✔✔ 10.43.3.87:23
7) You are the DNS administrator and have been tasked to hold alternative names for a
host that is a newly established start-up venturing into the business of ecommerce.
The start-up wants its clients to be directed to the appropriate page whenever they
request for alternative names. Which of the following resource records would you
apply as a DNS administrator in such a case? -- Answer ✔✔ CNAME record
8) Which of the following ports are used by applications such as Telnet, FTP, and
HTTP? -- Answer ✔✔ Well-known ports
9) HCL Industries are keen on allowing its employees with a work-from-home option
for its respective jobs. You have been hired to establish a secure and encrypted
control for remote Windows computers. Which of the following ports will you use
to establish this connection? -- Answer ✔✔ Port 3389
10) The Mosiac Music School has hired Kirk to set up a SIP protocol for a collaborative
multimedia conference session that will be limited to the selected students opting for
music theory. Which of the following ports should he use in such a situation so that
the required encryption can be provided? -- Answer ✔✔ 5061
11) Heroku Industries has a SQL Server database that provides data to clients
throughout its network. It has now asked George, a network engineer, to sort an
issue within the administration branch where the Windows firewall does not allow
access to the users to such databases. Analyze what port should George open up in
the firewall so that the issue is resolved. -- Answer ✔✔ Open up port 1433
