Exam 10: In-Depth TCP/IP Networking

MATCHING Match each item with a statement below: a.ipconfig utility f.dig utility b.ifconfig utility g.nslookup utility c.netstat utility h.whois utility d.nbstat utility i.traceroute utility e.host utility -Allows an administrator to query a DNS database and find the host name associated with a specific IP address or vice versa.

IMAP4 servers require less storage space and usually more processing resources than POP servers do.

An example of a popular mail server is ____.

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.

____________________ separates a network into multiple logically defined segments,or subnets.

MATCHING Match each item with a statement below: a.ipconfig utility f.dig utility b.ifconfig utility g.nslookup utility c.netstat utility h.whois utility d.nbstat utility i.traceroute utility e.host utility -The TCP/IP administration utility for use with Windows NT,2000,XP,Vista,Server 2003,and Server 2008 operating systems.

Explain why SNAT is considered static and describe why it useful.

Within a classful addressing subnet mask,the ____ bits indicate that corresponding bits in an IPv4 address contain network information.

MATCHING Match each item with a statement below: a.ipconfig utility f.dig utility b.ifconfig utility g.nslookup utility c.netstat utility h.whois utility d.nbstat utility i.traceroute utility e.host utility -Queries a DNS registration database and obtain information about a domain.

MATCHING Match each item with a statement below: a.ipconfig utility f.dig utility b.ifconfig utility g.nslookup utility c.netstat utility h.whois utility d.nbstat utility i.traceroute utility e.host utility -Useful only on networks that run Windows-based operating systems and NetBIOS.

In ____ addressing,only Class A,Class B,and Class C addresses are recognized.

Describe what PAT is and how it works.

The standard message format specified by SMTP allows for lines that contain no more than ____ ASCII characters.

SMTP operates from port ____.

Describe four features of IMAP4.

POP3 (Post Office Protocol,version 3)relies on TCP and operates over port ____.

_____________________________________________ is a standard for encoding and interpreting binary files,images,video,and non-ASCII character sets within an e-mail message.

________________________________________ is the protocol responsible for moving messages from one mail server to another over TCP/IP-based networks.

Describe the formula determining how to modify a default subnet mask to create subnets.

The combination of additional bits used for subnet information plus the existing network ID is known as the _________________________.