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CCNA Network Fundamentals Vocab

Subjects : cisco, it-skills, ccna
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 application level network protocl mainly applied to shared access to files - printers - serial ports - and miscellaneous communications between nodes on a network.






2. 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






3. Data that directs a process. a flag in a data-link frame is an example of control data.






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






5. A group of IP addresses that have the same value in the first part of the IP addresses - for the purpose of allowing routing to identify the group by the inital part of the addresses. IP addresses in the same subnet typically sit on the same network






6. 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.






7. 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.






8. The network that combines enterprise networks - individual users - and ISPs into a single global IP network.






9. 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






10. 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.






11. A map of the devices on a network representing how the devices communcate with each other.






12. 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.






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






14. 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.






15. One of the three basic binary logic operations. ANDing yields the following result: 1 and 1 = 1 - 1 and 0 = 0 - 0 and 1 = 0






16. A network model defined by the IETF that has been implemented on most computers and network device in the world.






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






18. Unique addresses that are public domain addresses.






19. Devices at the user end of a user-network interface that serves as a data source - destination or both. DTE connects to a data network through a DCE device and typically uses clocking signals generated by the DCE. DTE includes such devices as compute






20. 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






21. The retransmission delay used with CSMA/CD when a collision occurs. The algorithm forces each sender that detected the collisions to delay a random amount of time before attempting to retransmit.






22. When used generically - this term refers to end-user data along with networking headers and trailers that are transmitted through a network. When used specifically - it is end-user data - along with the network or Internet layer headers and any highe






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






24. Binary digit used in the binary numbering system. Binary digits are units of information storage and communication in computing. Each bit can be either a 0 or a 1.






25. A network device that has an IPv4 address assigned to it to communication over a network.






26. A field in the IP header that prevents a packet form indefinitely looping around an IP internetwork. Router decrements the TTL field each time they forward a packet - and if they decrement the TTL to 0 - the router discards the packet - which prevent






27. Define in RFC 1918 - an IP address that does not have to be globally unique because the address exists inside packets only when the packets are inside a single private IP internetwork. Private IP addresses are popularly used in most company today - w






28. An application protocol typically not used by end users. Instead - it is used by the network management software and networking devices to allow a network engineer to monitor and troubleshoot network problems.






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






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






31. A method of internal processing by LAN switches. The switch must receive the entire frame before it sends the first bit of the frame. Store and forward switch is the method used by cisco switches.






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






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






34. 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.






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






36. A part of a computer network that every device communicates with using the same physical medium. Network segments are extended by hubs or repeaters.






37. Line code in which each bit of data is signified by at least one voltage level transition.






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






39. A temporary storage where data that has been retrieved or calculated and is accessed frequently can be stored. After the data is stored in the cache - the processes can access the cached copy instead of accessing the original data. A cache reduces th






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






41. Network protocols or technologies that do not use the acknowledgment system to guarantee reliable delivery of information






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






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






44. An international standards body that defines many networking standards. Also - the standards body that created the OSI model.






45. An ethernet frame that is less than 64 bytes in size. Runts are caused by collisions and are also know as collision fragments






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






47. A corporate system such as a website that is explicitly used by internal employees. Can be assessed internally or remotely






48. A port on cisco devices to which a terminal or computer with a terminal emulator is connected to the network device in order to communicate and configure the network device






49. Information systems that allow the creation of a document or documents that can be edited by more than one person in real time






50. A type of network cabling that includes twisted-pair wires - with shielding around each pair of wires - as well as another shield around all wires in the cable.







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