Network+ Guide to Networks – Chapter 10
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T/F: On a network using TCP/IP, some nodes may use multiple IP addresses.
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True
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T/F: In CIDR, conventional network class distinctions do not exist.
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True
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T/F: The MIME standard replaces SMTP.
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False
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T/F: POP3's design makes it best suited to users who retrieve their mail from the same workstation all the time.
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True
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T/F: IMAP4 servers require less storage space and usually more processing resources than POP servers do.
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False
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A class ____ network class is reserved for special purposes.
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D
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In ____ addressing, only Class A, Class B, and Class C addresses are recognized.
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classful
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In classful addressing, the Class B IPv4 address network ID is located in the ____.
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first 16 bits
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In classful addressing, Class C IPv4 address host information is located in the ____.
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last 8 bits
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Within a classful addressing subnet mask, the ____ bits indicate that corresponding bits in an IPv4 address contain network information.
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1
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Within a classful addressing, ____ is the default subnet mask for a Class C address.
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255.255.0.0
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The result from ANDing 11001111 with 10010001 is ____.
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10000001
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Because the octets equal to 0 and 255 are ____, only the numbers 1 through 254 can be used for host information in an IPv4 address.
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reserved
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CIDR notation takes the form of the network ID followed by a(n) ____, followed by the number of bits that are used for the extended network prefix.
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forward slash
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The ____ gateway is the gateway that first interprets its outbound requests to other subnets, and then interprets its inbound requests from other subnets.
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default
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The gateways that make up the Internet backbone are called ____ gateways.
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core
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An example of a popular mail server is ____.
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Microsoft Exchange Server
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An example of a popular client email software is ____.
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Microsoft Outlook
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SMTP operates from port ____.
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25
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The standard message format specified by SMTP allows for lines that contain no more than ____ ASCII
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1000
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POP3 (Post Office Protocol, version 3) relies on TCP and operates over port ____.
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110
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IMAP (Internet Message Access Protocol) is a mail retrieval protocol that was developed as a more sophisticated alternative to ____.
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POP3
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An administrator can discover the host name assigned to a client by using the ____ utility.
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hostname
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A program similar to mtr, ____, is available as a command-line utility in Windows XP, Vista, Server 2003, and Server 2008.
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pathping
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The ____ utility allows you to view a host's routing table.
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route
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________ separates a network into multiple logically defined segments, or subnets.
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subnetting
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The gateways that make up the Internet backbone are called __________
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core gateways
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The combination of additional bits used for subnet information plus the existing network ID is known as the _________
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extended network prefix
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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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SMTP
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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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MIME
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Used if an administrator already know a host's name and wants to learn its IP address.
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host utility
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Uses ICMP ECHO requests to trace the path from one networked node to another, identifying all intermediate hops between the two nodes.
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traceroute utility
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Useful only on networks that run Windows-based operating systems and NetBIOS.
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nbstat utility
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Allows an administrator to query a DNS database and find the host name associated with a specific IP address or vice versa.
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dig utility
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Allows an administrator 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.
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nslookup utility
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The TCP/IP administration utility for use with Windows NT, 2000, XP, Vista, Server 2003, and Server 2008 operating systems.
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ipconfig utility
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Queries a DNS registration database and obtain information about a domain.
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whois utility
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Displays TCP/IP statistics and details about TCP/IP components and connections on a host.
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netstat utility
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The TCP/IP configuration and management utility used on UNIX and Linux systems.
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ifconfig utility
