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






2. 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






3. 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






4. A method of expressing a network prefix. It uses a forward slash / followed by the network prefix.






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






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






7. 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.






8. 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.






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






11. 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.






12. A network topology characterized by a central location connected to multiple hubs. In an extended star - these interconnected hubs may be connected to more hubs. It is essentially a hierarchical topology but typically is drawn with the central site i






13. On a switch - a table that lists all known MAC addresses - and the bridges/switch port out which the bridge/switch should forward frames sent to each MAC address.






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






15. A 1-bit field in the TCP header that is used by a device that wants to terminate its session with the other device. This is done by inserting the FIN flag in the flag field found in the TCP segment






16. 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.






17. 1.collection of computers - printers - routers - switches - and other devices that can communication with each other over some transmission medium. 2. command that assgins a NIC based address to which the router is directly connected.






18. 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.






19. A popular certification method for fiber systems. The OTDR injects light into the fiber and then graphically displays the results of the detected reflected light. The OTDR measures the elapsed transit time of reflected light to calculate the distance






20. 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.






21. A 1-bit flag in the TCP header that is used to request to the higher layers for immediate delivery of the packet.






22. The cabling and connectors used to interconnect the network devices.






23. 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






24. 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






25. 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.






26. 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.






27. 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.






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






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






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






31. An internationally recognized definition of technical specifications that ensure worldwide consistency.






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






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






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






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






36. Used by tcp or udp - with values between 0 and 1023 - these ports are allocated by high-privilege processes. They are used so that all clients know the correct port number to connect to.






37. The physical interface transceivers. It deals with Layer 1 (the physical layer - hence the PHY) of ethernet.






38. A network created for devices located in a limited geographic area - through which the company owning the LAN has the right to run cables.






39. A logical storage in a host's RAM to store arp entries.






40. A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type.






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






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






43. An organization that assigns the numbers important to the proper operation of the TCP/IP protocol and the Internet - including assigning globally unique IP addresses.






44. 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






45. 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






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






47. 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.






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






49. 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.






50. 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