True/False
Indicate whether the sentence or statement is true
or false.
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1.
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A
reverse lookup is used to convert an IP address to a host name.
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2.
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Forward lookups are often performed for the system logs of Internet
services.
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3.
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The A
and PTR record types are used to perform opposite functions.
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4.
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The
utility ipconfig queries DNS records.
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5.
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NSLOOKUP is most powerful in interactive mode.
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6.
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If a
client’s NetBIOS cache does not contain the appropriate information, the machine immediately
checks for the information in its LMHOSTS file.
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7.
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You
may use DHCP to configure the node type used on client computers.
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8.
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An
LMHOSTS file has a file extension.
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9.
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You
cannot disable the use of an LMHOSTS file in Windows Server 2003.
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10.
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Each
NetBIOS name is tied to a service.
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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11.
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A
name used to access network resources through WinSock is referred to as a(n) ____. a. | host
name | c. | nickname | b. | NetBIOS name | d. | Internet name | | | | |
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12.
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Applications using WinSock perform which of the following steps first for name
resolution? a. | check the HOST
file | b. | contact a DNS
server | c. | compare the host name being resolved with the server’s own
host name | d. | check the DNS cache | | |
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13.
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What
is the last technique a WinSock application attempts in order to resolve a host
name? a. | check the DNS
cache | c. | contact a DNS
server | b. | attempt NetBIOS resolution | d. | check the HOSTS file | | | | |
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14.
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The
HOSTS file ____. a. | is used to
resolve NetBIOS names | b. | does not store IP addresses | c. | must be located
in the c:\windows\system\ directory | d. | does not have an extension in its
filename | | |
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15.
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The
period of time during which a DNS query is allowed to remain within the DNS cache is called its
____. a. | lifetime | c. | expiration
interval | b. | time to live | d. | life expectancy | | | | |
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16.
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Which
of the following is the most common task for a DNS server? a. | resolving IP
addresses to host names | b. | resolving a NetBIOS name to an IP
address | c. | resolving an IP address to a NetBIOS
name | d. | resolving host
names to IP addresses | | |
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17.
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In a
reverse lookup, ____. a. | a server tries to resolve a client | b. | a DNS client
acts as a DNS server | c. | an IP address is resolved to a host
name | d. | a host name is
resolved to an IP address | | |
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18.
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What
is the fourth step attempted by NetBIOS applications in order to resolve NetBIOS
names? a. | consult an
LMHOSTS file | c. | check NetBIOS
name cache | b. | contact a WINS server | d. | perform host name resolution | | | | |
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19.
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An
LMHOSTS file ____. a. | is used for host name resolution | b. | cannot be
located in the Windows directory | c. | does not contain IP addresses | d. | contains NetBIOS
names | | |
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20.
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A
WINS server is a central repository for ____. a. | host names | c. | NetBIOS names | b. | Internet
names | d. | DNS
names | | | | |
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21.
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Name
registration is a(n) ____-packet process.
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22.
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Name
renewal is a(n) ____ packet process.
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23.
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The
first packet in the name query process is a(n) ____ from the WINS client to the WINS
server. a. | discovery
request | c. | name query
response | b. | name query request | d. | disable request | | | | |
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24.
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An
FQDN is simply a host name followed by the appropriate ____. a. | host
ID | c. | DNS
suffix | b. | NetBIOS ID | d. | host suffix | | | | |
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25.
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A
registrar ____. a. | registers
NetBIOS names | b. | is able to put domain information into top-level domain DNS
servers | c. | is able to put domain information into bottom-level domain DNS
servers | d. | backs up HOSTS files across the
Internet | | |
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26.
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Which
of the following is the original method used to resolve host names to IP addresses? a. | DNS
server | c. | WINS
server | b. | HOSTS file | d. | LMHOSTS file | | | | |
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27.
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The
DNS cache is also referred to as the ____. a. | Client resolver cache | c. | second-chance cache | b. | recovery
cache | d. | fallback
cache | | | | |
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28.
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Which
of the following utilities can be used to purge the DNS cache? a. | wincfg | c. | ipconfig | b. | dcpromo | d. | nslook | | | | |
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29.
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There
are ____ root servers that control the overall DNS lookup process for the entire
Internet.
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30.
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Why
did Internet users not notice a denial-of-service attack that crippled most of the root servers on
the Internet? a. | one DNS server
is sufficient for the entire Internet | b. | root servers are only used as backup
servers | c. | all client machines posses a HOSTS file that is used as backup
for such situations | d. | other DNS servers cache the root server
information | | |
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