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20 Cards in this Set
- Front
- Back
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Which protocol defines how network data is addressed form source to destination?
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IP
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Which protocol manages connections between computers?
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TCP
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Which protocol serves the same role as TCP,but offers fewer features?
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UDP
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What is a port?
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An application-specific address
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How many ports are there?
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65,536 or 2 to the 16th power
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How long are IP addresses?
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32 bits, composed of 4 octets of 8 bits each.
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What is the current version of the IP protocol?
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IP v4.
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Who assigns IP addresses to companies?
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Addresses are administered by the Internet Corporation for Assigned Names and Numbers, or ICANN.
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Who handles the actual name and number assignments?
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A group of registrars, such as InterNIC or Network Solutions
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How many classes of addresses does ICANN assign, and what are they.
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ICANN assigns 3 classes of addresses, classes A, B, and C.
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What is the main difference between the classes of IP networks?
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The main difference is in the number of hosts that are available. Class A has the most, while Class C has the least.
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What is subnetting?
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Subnetting allows you to subdivide a hostid range across two or more networks.
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There are actually two parts to an IP address. What is the other part?
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The subnet mask
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What does the subnet mask do?
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It defines which part of a computer's IP address is the netid and which part is the host id.
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What are the requirements of a valid subnet mask?
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A subnet mask must have contiguous 1s and contiguous zeros.
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There are quite a few other protocols that rely on or use TCP/IP. One of them DNS. What does DNS do?
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DNS, the Domain Naming System, resolves host names to IP addresses.
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What does DHCP do?
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DHCP, the Dynamic Host Configuration Protocol, assigns IP addresses.
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What does HTTP do?
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HTTP, the HyperText Transfer Protocol, controls the transactions between a web client and a web server.
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What does FTP do?
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FTP, the File Transfer Protocol, is used to send and receive files between an FTP client and an FTP server.
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What does Telnet do?
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Telnet defines a protocol that allows a remote terminal session to be established with an Internet Host.
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