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CCNA Network Fundamentals Vocab

Subjects : cisco, it-skills, ccna
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. An IPv4 multicast address that is restricted to a local group or organization.






2. The IPv4 multicast addresses 224.0.0.0 to 224.0.0.255. These addresses are to be used for multicast groups on a local network. Packets to these destinations are always transmitted with a TTTL value of 1






3. The portion of a binary number that carries the most weight - the one written farthest to the left. High-order bits are the 1s in the network mask.






4. The method of for finding a host's hardware address from its IPv4 network layer address.






5. The standards body responsible for the development and approval of TCP/IP standards






6. A grouping of code that meets a certain - already specified - condition for entering in that certain group.






7. The spreading of light signal caused by light signals traveling at different speeds through a fiber.






8. A device that connects end devices to the network or interconnects different networks. A router is an example of an intermediary device.






9. The ability of a protocol. system or component to be modified to fit a new need.






10. Network layer protocol in the TCP/IP stack offering a connectionless internetwork service. IP provides features for addressing - type-of-service specification - fragmentation and reassembly - and security.






11. A common name for ethernet technology that operates at 100 mbps.






12. Defines which wires in a cable should connect to each pin on the connectors on both ends of a cable. For example - a UTP cable used for ethernet - used for a straight-through cable pinout - connects the wire at pin 1 on one end with the pin 1 on the






13. IPv4 address of a network host. When talking about host addresses - they are the network layer addresses.






14. The reference to text based logical interfaces on an ios device. These are accesses using telnet or ssh to perform administrative tasks. VTY lines are also called virtual type terminal.






15. The table used by a switch or bridge that associates MAC addresses with the outgoing port. The switch or bridge uses this table for its forwarding/filtering decisions.






16. Somtimes called place-value notation - this is a numeral system in which each position is related to the next by a constant multiplier - a common ration - called the base or radix of that numeral system.






17. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.






18. A popular certification method for fiber systems. The OTDR injects light into the fiber and then graphically displays the results of the detected reflected light. The OTDR measures the elapsed transit time of reflected light to calculate the distance






19. A method of expressing a network prefix. It uses a forward slash / followed by the network prefix.






20. A delineation of networking protocols and standards into different categories - called layers - along with definitions of which sets of standards and protocols need to be implemented to create products that can be used to create a working network






21. A form of transmission where one device transmits to all devices within the network or on another network






22. Communication that allows receipt and transmission simultaneously. A station can transmit and receive at the same time. There are no collisions with full-duplex ethernet transmision.






23. The time required for some network pdu's to be sent and received - and a response PDU to be sent and received. In other words - the time between when a device sends data and when the same device receives a response.






24. A service or a program to look up information in the DNS






25. A time period between ethernet frames that allows fairness with the CSMA/CD algorithm. Without a space between frames in other words - without some time with no frames being sent a NIC might always listen for silence - never hear silence and therefor






26. An IP address that has been registered with IANA or one of its member agencies - which guarantees that the address is globally unique. Globally unique public IP addresses can be used for packets sent through the Internet.






27. A computer program that runs in the background and is usually initiated as a process. Daemons often support server processes.






28. A host or node that participates in some form of a group. For example - p2p technology defines a group of peers that participate jointly in the same activity - each one having a server and client component.






29. The structure and order of words in a computer language






30. A logical storage in a host's RAM to store arp entries.






31. A general type of cable - with the cable holding twisted pairs of copper wires and the cable itself having little shielding.






32. A numbering system characterized by 1 and 0






33. A network with a geographic size between a LAN and a WAN. Typically used by service providers to create a highspeed network in a major metropolitan area where many customers might want high speed services between large sites around a city.






34. A dotted decimal number defined by the IPv4 protocol to represent a network or subnet. It represents the network that hosts reside in. Also called a network number or network ID.






35. The physical interface transceivers. It deals with Layer 1 (the physical layer - hence the PHY) of ethernet.






36. The process of obscuring information to make it unreadable without special knowledge - somtimes referred to as scrambling. The process takes the data to be encrypted and applies a mathematical formula to it along with a secret number. The resulting v






37. A notification sent from one network device to another to confirm that some event has occured.






38. In ethernet - the process performed by a bridge or switch when it decides that it should not forward a frame out another port






39. The IEEE 802.2 standard that defines the upper sublayer of the Ethernet Layer 2 specifications.






40. The learning of source addresses on incoming frames and adding them to the bridging table. After the table has been completed and when a frame is received on one of the bridge's interfaces - the bridge looks up the frame's destination address in its






41. The layer 2 pdu that has been encoded by a data link layer protocol for digital transmission. Some different kinds of frames are ethernet frames and PPP frames.






42. The glass fibers inside certain cables over which light is transmitted to encode 0 and 1






43. A network of computers that behave as if they are connected to the same network segment - even through they might be physically located on different segments of a LAN. VLANs are configured through software on the switch and router.






44. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.






45. A logical network composed of all the computers and networking devices that can be reached by sending a frame to the data link layer broadcast address.






46. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.






47. An international - nonprofit organization for the advancement of technology related to eletricity. IEEE maintains the standards defining many LAN protocols.






48. The MAC address that is permanently assigned to a LAN interface or NIC. It is called burned-in because the address is burned into a chip on the card - and the address cannot be changed. Also called universally administered address.






49. On a switch - a table that lists all known MAC addresses - and the bridges/switch port out which the bridge/switch should forward frames sent to each MAC address.






50. A command on many computer operating systems that discovers the IP addresses - and possibly host names - of the routers used by the network when sending a packet from one computer to another.