CCNA Black

  1. Name network architectures
    P2P, c/s, nos
  2. what does architecture mean
    physical and logical data paths
  3. what happens in a p2p
    devices change roles between c/s
  4. what happens in a c/s
    devices have dedicated roles
  5. what is a nos
    provisioning of services - windows server, max server, Linux
  6. what are types of networks
    area coverages
  7. name mediums
    fiber (single, multimode), coaxial, twisted pair
  8. length of utp
    100 m
  9. length of fiber single mode
    40 to 60 km
  10. length of fiber multimode
    2 to 3 km
  11. length of coaxial
    500 m
  12. what are the individual cisco layers
    • access  - pc, l2 sw
    • distribution l3 sw, man
    • core wan
  13. messages - casting types
    unicast, multicast, broadcast
  14. communication channel
    width measurement?
    data measurement?
    • Hz
    • bps
  15. communication channel types
    • simplex - one way
    • 1/2 duplex
    • full duplex
  16. types of communication protocols
    • connection oriented - TCP - circuit switching (handshake, ack) packets: same route; same order, i.e. PSTN Public Switched Telephone Network
    • connectionless oriented - UDP (user datagram) - packet switching - packets: not same route; not same order, i.e. computer network IP protocol
  17. TFTP
    • connectionless and simplier
  18. SMTP
    Sends/Receives mail from email server
  19. POP
    Post Office Protocol - email client uses to retrieve emails from the mail server; no copy left behind
  20. IMAP
    • Internet Message Access Protocol
    • email app to retrieve emails from the mail server; copy left behind
  21. DNS
    • Domain Name Server
    • Locates and translates domain names into IP addresses.
  22. DHCP
    • Dynamic Host Configuration Protocol
    • Assigns IP addresses to devices
  23. SSL
    • Secure Socket Layer
    • Enables a secure channel for data transmission between devices.
  24. TSL
    • Transport Layer Security
    • after ssl, provides privacy and data integrity
  25. SSH
    • Secure Shell
    • administer devices remotely and is more secure than telnet
  26. PPTP
    • Point to Point Tunneling Protocol
    • first protocol used for vpn
  27. L2TP
    extends the functionality of PPTP with security for vpn over the internet
  28. TCP
    • connection oriented
    • provides reliable and orderly data
  29. UDP
    • User Datagram
    • connectionless
    • best effort transmission
  30. IP
    • connectionless
    • forwards packets from source to destination pc
  31. NAT
    • Network Address Translation
    • translates private ip addresses into public ip addresses for a connection to the internet
  32. RIP
    • Routing Information Protocol
    • first routing protocol tasked to enable communications between routers by sharing network topology through distance-vector algorithm.
  33. OSPF
    • Open Shortest Path First
    • routing protocol uses link-state routing (LSR)
  34. IGRP
    • Interior Gateway Routing Protocol
    • Cisco protocol that uses distance vector algorithm to enable communication between routers by exchanging information within an autonomous system
  35. EIGRP
    • Enhanced Interior Gateway Routing Protocol
    • Cisco protocol that uses both link-state routing and distance vector algorithm to enable communication between routers by exchanging information within an autonomous system. Can only be used in all CISCO device network.
  36. ICMP
    • Internet control Message Protocol
    • used by active devices in the network to send error messages in order to determine the availability of the service or destination device
  37. ARP
    • Address Resolution Protocol
    • identifies the physical address of a given IP address
  38. RARP
    • Reverse Address Resolution Protocol
    • identifies the IP address of a given physical address
  39. MPLS
    • Multiprotocol Label Switching
    • operates between L2 and L3
    • enables high performance by forwarding data using labels
  40. STP
    • Spanning Tree Protocol
    • prevents bridging loops on lans
  41. LLDP
    • Link Layer Discovery Protocol
    • enables network devices to advertise identity, capabilities and neighbors on lans
  42. PPP
    • Point to Point Protocol
    • enables a direct connection between two devices
  43. NDP
    • Neighbor Discovery Protocol
    • replaces ARP in IPv6
    • with ICMP determines the physical address, reachability and tracking of neighboring devices
  44. IEEE 802.2
    describes logical link control (llc) sublayer of the OSI L2
  45. IEEE 802.3
    standard for specifying the physical medium and chars of Ethernet in lans
  46. IEEE 802.5
    standard for token-passing communication technology in lans
  47. IEEE 802.11
    standard for wireless local area networks (wlan)
Card Set
CCNA Black
Information from black cover CCNA book