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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. In a shared media ethernet network - a signal generated by the transmitting devices that detects the collision. The jam signal continue to transmit for a specified period to ensure that all devices on the network detect the collision. The jame signal






2. A rectangular cabling connector with eight pins - often used with ethernet cables.






3. 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.






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






5. The extent of a certain item. For example - an address scope is also known as a range of addresses from beginning of the range to the end.






6. 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.






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






8. A method of computer processing in which different parts of a program run simultaneously on two or more computers that are communicating with each other over a network






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






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






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






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






13. A form of signal modulation where the message information is encoded in the amplitude of series of signal pulses. It transmits data by varying the aplitunes of the individual pulses. This is now obsolete and has been replaced by pulse code modulation






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






15. A group of devices associated by the arrangement of a hierarchial addressing scheme. Devices in the same logical network that share a common network portion of their Layer 3 addresses.






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






17. The time that passes while some event occurs. In networking - latency typically refers to the time that occurs between when something is sent in a network until it is received by another device.






18. In ethernet - the process performed by a bridge or switch when it decides that it should send a frame out another port.






19. A numbering system characterized by 1 and 0






20. A device that connects to a local digital telephone loop for a WAN circuit to a serial interface on a network device - typically connecting to a router. The CSU/DSU performs physical Layer 1 signaling on WAN circuits






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






22. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.






23. 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






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






25. 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






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






27. A group of 8 binary bits. It is similar to - but not the same as - a byte. One Application in computer network is to use octets to divide IPv4 addresses into four components






28. 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.






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






30. 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.






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






32. Using values between 1024 and 49 -151 these numbers are equivalent to well-known ports in concept - but they are specifically used for nonprivileged application processes.






33. In networking - a general term referring to any energy signal on a transmission medium that is not part of the signal used to transmit data over that medium.






34. 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.






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






36. 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.






37. 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.






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






39. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.






40. 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.






41. Refers to whether the performance of a device - attached to a particular type of LAN - can be accurately predicted. Token Ring LANS are deterministic - but ethernet LANS are non deterministic.






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






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






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






45. 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.






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






47. As filed in the TCP header that is set in a sent segment - signifies the maximum amount of unacknowledged data the host is willing to receive before the other sending host must wait for an acknowledgment.






48. 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.






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






50. 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