Test your basic knowledge |

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. DNS data records. Their precise format is defined in RFC 1035. The most important fields in a resource record are Name - class - type and data.






2. Interface by magnetic signals caused by the flow of electricity. EMI can cause reduced data integrity and increased error rates on transmission channels. The physics of this process are that electrical current creates magnetic fields - which in turn






3. The passage of a data packet between two network nodes.






4. Application-level throughput. It is the number of useful bits per unit of time from a certain source address to a certain destination - excluding protocol overhead and excluding retransmitted data packets.






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






6. To change the energy levels transmitted over some networking medium to transmit bits over that medium.






7. A dotted decimal number that helps identify the structure of IP addresses. The mask represents the network and subnet parts of related IP addresses with binary 1s and the host part of related IP addresses with binary 0s






8. A 1-bit flag in the tcp header that indicates the acknowledgment field is valid.






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. 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






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






12. In networking - this term is used in several ways. With ethernet hub and switch hardware - port is simply another name for interface - which is a physical connector in the swithc into whic a cable can be connected. With TCP and UDP - a port is a soft






13. 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.






14. The design on networks that can continue to operate without interruption in the case of hardware - software or communications failures.






15. Communication where the sender and receiver must prearrange for communications to occur; otherwise - the communication fails.






16. Unique addresses that are public domain addresses.






17. A series of documents and memoranda encompassing new research - innovations and methodologies applicable to Internet technologies. RFCs are a reference for how technologies should work.






18. A protocol for synchronizing the clocks of computer systems over packet-switch data networks. NTP uses UDP port 123 as its transport layer.






19. In a web browser - an application the browser uses - inside the browser window to display some types of content. For example - a browser typically uses a plug-in to display video.






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






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






22. 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






23. Line code in which 1s are represented by one significant condition and 0s are represented by another.






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






25. An address used to represent a transmission from one device to all devices. In ethernet - the sepcial ethernet address FFFF.FFFF.FFFF is used as a destination MAC address to cause a frame to be sent to all devices on an ethernet LAN. In IPV4 - each s






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






27. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.






28. MDIX is an alternative operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs used in the hub port is in a crossover configuration. This allows you to use a straight-through cable to interconnect the hub to another hub.






29. A protocol that allows a computer to retrieve email from a server.






30. 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.






31. Represents the 0 in the binary number. In an IP subnet mask - the lower-order bits represent the host portion. Sometimes called the host portion of bits.






32. The networking layers whose processes are not affected by the media being used. In ethernet - these are all the layers from the LLC sublayer of data link upward.






33. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.






34. Additional data that is provided with a command to provide information used by the execution of the command. IOS command arguments are entered at the CLI after the command






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






36. The arrangement of the nodes in a network and the physical connections between them. This is the representation of how the media is used to connect the devices.






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






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






39. A broadcast that is sent to a specific network or series of networks.






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






41. 1. a collision domain that is a section of a LAN that is bound by bridges - routers or switches. 2. In a LAN using a bus topology - a segment is a continuous electrical circuit that is often connected to other such segments with repeaters. 3. When us






42. Radio frequencies that creat noise that interferes with information being transmitted across unshielded copper cabling.






43. A removable component that has memory space for storage. Used on the router or switch for storing the compressed operating system image.






44. A type of hash function that is used to produce a small - fixed size checksum of a block of data - such as a packet or a computer file. A CRC is computed and appended before transmission or storage - and verified afterward by the recipient to confirm






45. 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.






46. The IP address of the originating host that is placed into the IP packet header.






47. In ethernet a layer 2 device that receives an electrical signal in one port - interprets the bits - and makes a filtering or forwarding decision about the frame. If it forward - it sends a regenerated signal. Switches typically have many physical por






48. An application level network protocl mainly applied to shared access to files - printers - serial ports - and miscellaneous communications between nodes on a network.






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






50. Another form of the root word converge in the phrase converged network. This kind of network aggregates various forms of traffic such as voice - video and data on the same network infrastructure. A more common usage represents the process by which ro