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






2. In ethernet - the results of two nodes transmitting simlutaneously. The signals from each device are damaged when they combine on the media






3. A combination of many IP subnets and networks - as created by building a network using routers. The term internwork is used to avoid confusion with the term network - because an internetwork can include several IP networks.






4. The range of ip addresses that can be assigned by the DHCP server.






5. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.






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






7. 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.






8. 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






9. Program used to download and send email. Email clients use POP3 to receive emails and use SMTP to send emails. Also called an email client






10. 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






11. 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.






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






13. A numbering system characterized by 1 and 0






14. 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.






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






16. A unicast IP address that is considered to have three parts: a network part - a subnet part - and a host part. The term classful refers to the fact that classful network rules are first applied to the address - and then the rest of the address can be






17. 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.






18. The dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.






19. Communication that uses a common clocking signal. In most synchronous communicatino - one of the communicating devices generates a clock signal into the circuit. Additional timing information is not required in the header.






20. A 1-bit flag in the TCP header that is used to request that a connection be re-established.






21. 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.






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






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






24. A member of a multicast group. Every multicast client in each group has the same IP address. Multicast addresses begin with 224... and end with 239...






25. 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






26. 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






27. 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.






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






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






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






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






32. An IPv4 address in the range of 169.254.1.0 to 169.254.254.255. Communication using these addresses is used with a ttl of 1 and limited to the local network






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






34. A written specification that defines what tasks a service or device should perform. Each protocol defines messages - often in the form of headers - plus the rules and processes by which these messages are used to achieve some stated purpose.






35. A protocol used to dynamically assign IP configurations to hosts. The services defined by the protocol are used to request and assign an IP address - default gateway - and DNS server address to a network host.






36. 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.






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






38. A convention for writing IP addresses with four decimal numbers - ranging from 0 to 255 - with each octet representing 8 bits of the 32 bit IP address. The term originates from the fact that each of the four decimal numbers is separated by a period.






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






40. Routing that adjusts automatically to network topology or traffic changes.






41. Defines the commands - headers and processes by which web server and web browsers transfer files.






42. 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






43. 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.






44. 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






45. A data link layer address - for example a MAC address






46. Resources used to manage or operate the network. Overhead consumes bandwidth and reduces the amount of application data that can be transported across the network.






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






48. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.






49. The connection of devices on a common media. Sometimes a physical network is also referred to as a network segment.






50. 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






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