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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 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






2. 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.






3. A form of transmission where one device transmits to all devices within the network or on another network






4. The process by which a router receives an incoming frame - discards the ata link header and trailer - makes a forwarding decision based on the destination IP address - adds a new data-link header and trailer based on the outgoing interface and forwar






5. An application level network protocl mainly applied to shared access to files - printers - serial ports - and miscellaneous communications between nodes on a network.






6. 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.






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






8. A physical or a logical area in a LAN where the signals sent by the interfaces ma be subject o being combined. Within a collision domain - if a device sends a frame on a network segment - every other device on that same segment will receive that fram






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






10. 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.






11. 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






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






13. 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






14. The minimum time a NIC or interface can take to send an entire frame. Slot time - then - implies a minimum frame size.






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






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






17. MDIX is an alternative operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs used in the hub port is in a crossover configuration. This allows you to use a straight-through cable to interconnect the hub to another hub.






18. Can refer to computer hardware that is to be used by multiple concurrent users. Alternatively - this term can refer to computer software that provides services to many users. For example - a web server consists of web server software running on some






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






20. A device on a network that serves as an access point to other networks. A default gateway is used by a host to forward IP packets that have destination addresses outside the local subnet. A router interface typically is used as the default gateway. W






21. Unique addresses that are public domain addresses.






22. A signal on a medium used to support the transmission of data. Data is carried over the medium by modulation.






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






24. A source of information that is highly reliable and known for its accuracy






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






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






27. Network layer protocol in the TCP/IP stack offering a connectionless internetwork service. IP provides features for addressing - type-of-service specification - fragmentation and reassembly - and security.






28. 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






29. A command on many computer operating systems that discovers the IP addresses - and possibly host names - of the routers used by the network when sending a packet from one computer to another.






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






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






33. 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






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






35. 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.






36. 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.






37. 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






38. The actual data transfer rate between two computers at some point in time. Throughput is impacted by the slowest-speed link used to send data between the two computers - as well as myriad variables that might change during the course of a day.






39. 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






40. A protocol that allows a computer to retrieve email from a server.






41. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.






42. Another form of the root word converge in the phrase converged network. This kind of network aggregates various forms of traffic such as voice - video and data on the same network infrastructure. A more common usage represents the process by which ro






43. In the telnet application - commands are always introduced by a character with the decimal code 255 - known as the Interpret as Command character.






44. Communication where the sender and receiver must prearrange for communications to occur; otherwise - the communication fails.






45. Organizations that are responsible for the allocation and registration of Internet number resources within a particular region of the world. These registries include the American Registry for Internet Number for North America; RIPE network coordinati






46. 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.






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






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






49. In networking - a symbol used when drawing network diagrams that represent a part of the network whose details can be ignored for the purposes of the diagram.






50. A high-speed line or series of connections that forms a major pathway within a network. The term is often used to describe the main network connections comprising the Internet.