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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. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5






2. A layer 4 protocl of TCP/IP model - TCP lets applications guarantee delivery of data across a network.






3. Physical medium that uses glass or plastic threads to transmit data. A fiber-optic cable consists of a bundle of these threads - each of which is capable of transmitting data into light waves.






4. A collection of data that establishes a reference for network performance and behavior over a period of time. This reference data is used in the future to assess the health and relative growth of network utilization.






5. Also known as boolean algebra. These consist of the AND OR and IF operations






6. 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.






7. A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type.






8. The lower of the two sublayers of the IEEE standard for ethernet. It is also the name of that sublayer






9. A model that consists of various layers that enable the development and explanation of technology to be done on a modular basis. This allows interoperability among different technologies among the different layers.






10. A network that incorporates both optical fiber along with coaxial cable to create a broadband network. commonly used by cable tv companies.






11. A communication path over a medium used to transport information from a sender to a receiver. Multiple channels can be multiplexed over a single cable






12. A device such as a desktop or mobile device that is used by an end user.






13. The first half of a MAC address. Manufactures must ensure that the value of the OUI has been registered with the IEEE. This value identifies the manufacturer of any Ethernet NIC or interface.






14. The management of data flow between devices in a network. It is used to avoid too much data arriving before a device can handle it - causing data overflow.






15. A process used to verify the identity of a person or process






16. A device on a network that serves as an access point to other networks. A default gateway is used by a host to forward IP packets that have destination addresses outside the local subnet. A router interface typically is used as the default gateway. W






17. Routing table entry that is used to direct frames for which a next hop is not explicitly listed in the routing table. This route is used to forward a packet when no other known route exists for a give packet's destination address.






18. A drag-and-drop network simulator developed by Cisco to design - configure and troubleshoot network equipment within a controlled - simulated program environment.






19. 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.






20. An organization that assigns the numbers important to the proper operation of the TCP/IP protocol and the Internet - including assigning globally unique IP addresses.






21. The optical or electrical impulse on a physical medium for purposes of communication.






22. In IP subnetting - this refers to the portion of a set of IP addresses whose value must be identical for the addresses to be in the same subnet.






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






24. 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.






25. A common term for 10base5 ethernet - referring to the fact that 10base5 cabling is thicker than the coaxial cabling used for 10base2.






26. An IPV4 addressing scheme that uses a subnet mask that does not follow classful addressing limitations. It provides increased flexibility when dividing ranges of IP addresses into separate networks. Classless addressing is considered the best in curr






27. Communication that only allows one station to receive while the other station is transmitting






28. The origin of the PDU. This can be a process a host or a node - depending on the layer to which you are reffering.






29. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.






30. Translation RFC 1918 addresses to public domain addresses. Because RFC 1918 addresses are not routerd on the Internet - hosts accessing the Internet must use public domain addresses.






31. A process used by a switch or bridge to forward broadcasts and unknown destination unicasts. The bridge/switch forwards these frames out all ports except the port on which the frame was received.






32. A special reserved IPv4 address - 127.0.0.1 that can be used to test TCP/IP applications. Packets sent to 127.0.0.1 by a computer never leave the computer or even require working NIC. Instead - the packet is processed by IP at the lowest layer and is






33. This field of a frame signals the beginning or end of a frame.






34. A system of network design characterized by one or more major components that are required to maintain operation.






35. A network architecture designed to eliminate network downtime cause by a single point of failure.






36. A protocol used between routers so that they can learn routes to add to their routing tables.






37. A term that describes IPv4 packets sent to all hosts in a particular network. In a directed broadcast - a single copy of the packet is routed to the specified network - where it is broadcast to all hosts on that network






38. The IPv4 address block 192.0.2.0 to 192.0.2.255 that is set aside for teaching and learning purposes. These addresses can be used in documentation and network examples.






39. 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.






40. Unique addresses that are public domain addresses.






41. A company that helps create the Internet by providing connectivity to enterprises and individuals - as well as interconnecting to other ISPs to create connectivity to all other ISPs.






42. A process that uses the same ARP messages as a normal ARP - but by which a router replies instead of the host listed in the ARP request. When a router sees an ARP request that cannot reach the intended host - but for which the router knows a route to






43. An encoding scheme 4B/5B uses 5-bit symbols and codes to represent 4 bits of data. 4B/5B is used in 100Base-tx ethernet.






44. An IPv4 multicast address that is restricted to a local group or organization






45. 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






46. 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






47. A device that connects multiple network segments at the data link layer of the OSI model. Bridges were the predecessor to LAN switches.






48. A network topology characterized by a central location connected to multiple hubs. In an extended star - these interconnected hubs may be connected to more hubs. It is essentially a hierarchical topology but typically is drawn with the central site i






49. A logical storage in the host's RAM to store ARP entries






50. In LAN switches a reference to cases in which a frame is forwarded - or switche - when the incoming and outgoing interfaces use the same speed. It is the opposite of asymmetric switching.