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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. Any communication in which the sender and receiver do not prearrange for communications to occur






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






3. 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






4. 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






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






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






7. 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.






8. The layer 3 address to which the data is going.






9. 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.






10. A network device - typically connected to a range of LAN and WAN interfaces - that forwards packets based on their destination IP addresses.






11. Media access methodology in which a node wishing to transmit listens for a carrier wave before trying to send. If a carrier is sensed - the node waits for the transmission in progress to finish before initiating its own transmission.






12. A network device that accesses a service on another computer remotely by accessing the network.






13. As part of the TCP/IP internet layer - ICMP defines protocol messages used to inform network engineeres of how well an internetwork is working. For example - the ping command sends ICMP messages to determine whether a host can send packets ot another






14. The limited CLI mode where the commands available to the user are a subset of those available at the privileged level. In general - use the user Exec commands to temporarily change terminal settings - perform basic tests and list system information.






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






16. The client part of the DNS client server mechanism. A DNS resolver creates queries sent a across a network to a same server - interprets responses - and returns information to the requesting programs.






17. A list of router holds in memory for the purpose of deciding how to forward packets.






18. Part of a company's intranet that is extended to users outside the company






19. An addressing scheme in which a network is partitioned into sections - with the section identifier forming one part of each destination's address and the destination identifier forming another






20. A plan - design or program of action to be followed. Sometimes an addressing plan is called an addressing SCHEME.






21. 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.






22. 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.






23. To transfer data from the computer functioning as a server to the client computer you are using.






24. 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.






25. The process by which a device adds networking heads and trailers to data from an application for the eventual transmission of the data onto a transmission medium.






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






27. A control mechanism that can provide different priorities to different users or data flows - or guarantee a certain level of performance to a data flow in accordance with requests from the application program.






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






29. Data link layer term describing a device connected to a network.






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






31. 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.






32. 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






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






34. 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.






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






36. In networking - a measurement of the speed of bits that can be transmitted over a particular link. It is the amount of data that can be transmitted in a certain amount of time. For digital bandwidth it is usually expressed in bits per second.






37. 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.






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






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






40. 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






41. 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.






42. 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






43. 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.






44. From the priviledged mode - you can enter the device's global caonfiguration mode. From global configuration mode - you can configure global parameters or enter other configuration submodes such as interface - router and line configuration submodes.






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






46. Path through an internetwork through which packets are forwarded.






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






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






49. 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






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