Chapter 4

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  1. Port 20
    FTP-DATA, TCP, File trans.-data
  2. Port 21
    FTP, TCP, File Trans.-control
  3. Port 22
    SSH, TCP, Secure Shell
  4. Port 23
    TELNET, TCP, Telnet
  5. Port 25
    SMTP, TCP, Simple mail trans. protocol
  6. Port 53
    DNS, TCP and UDP, Momain Name System
  7. Port 69
    TFTP, UDO, Trivial File Transfer Protocol
  8. Port 80
    HTTP, TCP and UDP, Hypertext Trans. Protocol
  9. Port 110
    POP3, TCP, Post office Protocol 3
  10. Port 123
    NTP, TCP, Internet Message Access Protocol
  11. Port 143
    IMAP, TCP, Internet Access Protocol
  12. Port 443
    HTTPS, TCP, Secure Implementation of HTTP
  13. Address resource record
    type of DNS data record, maps IP add. of internet-conn. device to its domain name
  14. APIPA
    (automatic private IP add.) automaticly assigns Node's NIC an IP add. from to if an IP add. hasn't been assigned to the interface
  15. ARP
    (add. resolution protocol) Core protocol in TCP/IP, Network layer, ARP obtains MAC add. of host or node, database mapping MAC add. to host IP add.
  16. BOOTP
    (Bootstrap Protocol) App. layer protocol in TCP/IP, Centtral list of IP add. and their ass. MAC add. Precursor to DHCP
  17. DDNS
    (Dynamic DNS) Notifiys Service provider when users IP add. changes, provider propagates DNS record change across the internet
  18. DHCP
    (Dynamic Host Configuration Protocol) App. layer protocol in HTP/IP, manages the dynamic dist. of IP addresses on a network.
  19. DNS
    (Domain Name System or Service) Hierarchical way of tracking domain names and their add., mid-1980s, distributed over several key computers accros the internet, DNS is a TCP/IP service , App. layer of OSI
  20. Dynamic Ports
    TCP/IP ports range of 49,152-65535, open for use without Admin. privilages
  21. Fully qualified host name
    Host name Plus domain name
  22. Host Name
    Symbolic name for TCP/IP
  23. ICMP
    (internet control message protocol) Core protocol in TCP/IP, notifies sender somthing has gone wroung and packes were not delivered
  24. IGMP
    (internet group managment protocol or Multicast protocol) TCP/Ip prot., manages multicast trans. , routers use to determine whicg nodes belong to a multicast group
  25. internetwork
    traverse more than one LAN segment and more than one type of network though a router
  26. IP datagram
    IP portyion of TCP/IP frame that acts as an envelope for data, holdering info. neccessary for routers to transfer data between subnets
  27. IPv4LL
    (IP version 4 link local) automatic add. assignment amoung locally connected Nodes, part of Zeroconf
  28. Label
    char. string that rep. a domain, either top-level, second-level, or third-level
  29. Namespace
    database of Internet IP add. and their assocuated names distributed over DNS name servers worldwide
  30. Network ID
    portion of an IP common to all nodes on the same network or subnet
  31. NTP
    (Network Time Protocol) Syn. clocks of computers on a network, NTP depends on UDP for trans. layer service
  32. RARP
    (reverse add. resolution protocol) core protocol in HTP/IP, Network layer, RARP table associates IP add. with a node's MAC add., RARP can be used to supply IP addresses to diskless workstations
  33. Resolver
    any host on the internet that needs to look up domain name information
  34. Resource Record
    element of a DNS database stored on a name server that contains info. about TCP/IP host names and their addresses
  35. root server
    DNS server maintained by ICANN and IANA that is an authority on how to contact the top-level domains, such as .com, .edu, .net, .us, ICANN oversees 13 root servers around the world
  36. socket
    logical add. assigned to a specific process running on a computer, some sockes are reserved for operating system functions
  37. subnet
    part of a network in wich all nodes share a network add. componet and a fixed amount of bandwith
  38. subnetting
    process of subdividing a single class of network into multiple, smaller networks
  39. Switch
    Letters or words added to a command that allow you to costomize a utility's output.
  40. TCP
    (Trans. Control Protocol) core protocol of TCP/IP, Trans. layer, provides reliable data delivery services
  41. TCP/IP
    networking protocols that incude TCP, IP, UDP, and many others, provides foundation for data exchange across the internet
  42. TCP/IP core protocols
    IP, TCP, and UDP
  43. Telnet
    terminal emulation protocol used to log on mote hosts using TCP/IP protocol, Telnet resides in the app. layer
  44. TFTP
    (trivial file transfer protocol) unlike FTP, TFTP uses UDP and does not require you to log on to the host
  45. TLD
    (top-level domain) the highest level catagory used to distinguish domains. example .org, .com and .net
  46. UDP
    (user datagram protocol) core protocol for TCP/IP, transport layer, connectionless transport service
  47. Zeroconf
    (zero configuration) collection of prorocols desighned to simplify setup of nodes on a TCP/IP network, assighns a node an IP add, resolves node's host name and IP add. without requiring a DNS server, descovers service such as print services, without requiring a DNS server
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Chapter 4
2011-06-05 16:15:18

Chapter 4
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