True/False
Indicate whether the
statement is true or false.
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1.
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In classful addressing, only Class A, Class B, and Class C addresses are
recognized.
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2.
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The “0” bits in a subnet mask indicate that corresponding bits in an
IP address contain network information.
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3.
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CIDR is not exclusive of subnetting; it merely provides additional ways of
arranging network and host information in an IP address.
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4.
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Routers that rely on older routing protocols, such as RIP, are capable of
interpreting classless IP addresses.
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5.
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When a router is used as a gateway, it must maintain routing tables as
well.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6.
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Leasing an entire Class C network of addresses gives you ____ usable IP
addresses.
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7.
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A(n) ____ indicates where network information is located in an IP
address.
a. | CIDR | c. | subnet mask | b. | gateway | d. | ICS host |
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8.
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The formula for determining how to modify a default subnet mask is ____.
a. | 2n - 2 = Y | c. | 2n - 1 = Y | b. | 2n - 4 =
Y | d. | 4n - 2 =
Y |
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9.
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Together, the additional bits used for subnet information plus the existing
network ID are known as the ____.
a. | network prefix | c. | NAT | b. | extended network prefix | d. | supernet mask |
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10.
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A subnet created by moving the subnet boundary to the left is known as a(n)
____.
a. | toll bypass | c. | softphone | b. | supernet mask | d. | supernet |
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11.
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____ are a combination of software and hardware that enable two different
network segments to exchange data.
a. | Intranets | c. | Softphones | b. | Gateways | d. | ICS hosts |
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12.
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A network that uses Internet-like services and protocols to exchange information
within an organization and with certain, authorized users outside of that organization is
known as a(n) ____.
a. | intranet | c. | extranet | b. | supernet | d. | PBX |
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13.
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____ is the protocol responsible for moving messages from one mail server to
another over TCP/IP-based networks.
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14.
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____ is a standard for encoding and interpreting binary files, images, video,
and non-ASCII character sets within an e-mail message.
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15.
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____ is an Application layer protocol used to retrieve messages from a mail
server.
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16.
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____ is a mail retrieval protocol that was developed as a more sophisticated
alternative to POP3.
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17.
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The netstat ____ command allows you to display the routing table on a
given machine.
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18.
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On networks that run NetBIOS over TCP/IP, the ____ utility can provide
information about NetBIOS statistics and resolve NetBIOS names to their IP addresses.
a. | netstat | c. | tracert | b. | nbtstat | d. | nslookup |
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19.
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The ____ utility allows you to query the DNS database from any computer on the
network and find the host name of a device by specifying its IP address, or vice versa.
a. | nbtstat | c. | tracert | b. | netstat | d. | nslookup |
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20.
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The utility that allows you to query the DNS registration database and obtain
information about a domain is called ____.
a. | whois | c. | ifconfig | b. | netstat | d. | dig |
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21.
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The ____ utility uses ICMP to trace the path from one networked node to another,
identifying all intermediate hops between the two nodes.
a. | dig | c. | nslookup | b. | netstat | d. | traceroute |
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22.
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____ is a command-line utility that provides information about a network
adapter’s IP address, subnet mask, and default gateway.
a. | winipcfg | c. | dig | b. | Ipconfig | d. | ifconfig |
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23.
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The ____ utility performs the same TCP/IP configuration and management as the
ipconfig utility, but applies to Windows 9x and Me operating systems.
a. | netstat | c. | whois | b. | dig | d. | winipcfg |
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24.
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____ is the TCP/IP configuration and management utility used on UNIX-type of
systems.
a. | winipcfg | c. | nbstat | b. | Ifconfig | d. | dig |
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25.
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In classful addressing, the network information portion of an IP address (the
network ID) is limited to the first ____ bits in a Class A address.
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26.
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When working on a UNIX-type of system, you can limit the maximum number of
router hops the traceroute command allows by typing the ____ switch.
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Completion
Complete each
statement.
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27.
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____________________ depends on the use of subnet masks to identify how a
network is subdivided.
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28.
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In CIDR terminology, the forward slash, plus the number of bits used for the
extended network prefix - for example,“/22” - is known as a(n)
____________________.
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29.
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The gateways that make up the Internet backbone are called
____________________.
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30.
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A network or part of a network that uses browser-based services to exchange
information within an enterprise is known as a(n) ____________________.
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31.
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____________________ is the use of packet-switched networks and the TCP/IP
protocol to transmit voice conversations.
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Matching
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Match each term with the correct statement below. a. | IP address | f. | ICS host | b. | Subnetting | g. | SMTP | c. | Broadcast
address | h. | MIME | d. | CIDR notation | i. | dig | e. | Internet
gateway |
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32.
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Consists of four 8-bit octets (or bytes) that can be expressed in either binary
or dotted decimal notation.
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33.
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Octet(s) that represent host information are set to equal all 1s, or in decimal
notation 255.
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34.
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Incapable of doing anything more than transporting mail or holding it in a
queue.
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35.
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Takes the form of the network ID followed by a forward slash (/), followed by
the number of bits that are used for the extended network prefix.
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36.
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Usually assigned an IP address that ends with an octet of .1.
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37.
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A TCP/IP utility similar to nslookup.
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38.
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Separates a network into multiple logically defined segments, or
subnets.
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39.
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Identifies each element of a mail message according to content type.
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40.
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Requires two network connections: one that connects to the Internet and one
that connects to the LAN.
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Short Answer
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41.
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What possible reasons would a network administrator have for hiding network
addresses?
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42.
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List four features of IMAP4.
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43.
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What are some of the disadvantages of IMAP4?
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44.
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What type of information can you obtain from the netstat utility?
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45.
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Under what circumstances would a traceroute test stop before reaching its
destination?
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46.
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Discuss three objectives for implementing VoIP.
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47.
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What are the disadvantages of using VoIP?
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48.
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What is the difference between the Simple Mail Transfer Protocol and the Post
Office Protocol (POP)?
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49.
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What is the purpose of the following netstat switches: -a, -e, -n, and
-p?
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50.
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What is the difference between the nbtstat and the nslookup
utility?
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