Test your basic knowledge |

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






2. A 32-bit number - written in dotted decimal notation - used by the IP to uniquely identify an interface connected to an IP network. It is also used as a destination address in an IP header to allow routing - and as a source address to allow a compute






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






4. 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.






5. 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






6. 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.






7. 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.






8. A computer program that runs in the background and is usually initiated as a process. Daemons often support server processes.






9. 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.






10. 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






11. 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






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






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






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






15. The IEEE 802.2 standard that defines the upper sublayer of the Ethernet Layer 2 specifications.






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






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






18. 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






19. 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






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






21. 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.






22. Unique addresses that are public domain addresses.






23. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability






24. The arrangement of the nodes in a network and the physical connections between them. This is the representation of how the media is used to connect the devices.






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






26. 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






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






28. 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.






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






30. In ethernet - a device that receives an electrical signal in one port - interprets the bits and regenerates a clean signal that it sends out all other ports of the hub. Typically it also supplies several ports - which are oftentimes RJ-45 jacks.






31. 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






32. A unit of measurement of the number of times 1000 bits can be transmitted in 1 second. 1 kbps = 1000bps






33. A part of the ethernet frame that fills in the data field to ensure that the data field meets the minimum size requirement of 46 bytes.






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






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






36. A protocol used between routers so that they can learn routes to add to their routing tables.






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






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






39. 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.






40. 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.






41. A network of computers that behave as if they are connected to the same network segment - even through they might be physically located on different segments of a LAN. VLANs are configured through software on the switch and router.






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






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






44. A group defined by a class D address (multicast - ranging from 224.0.0.0 to 239.255.255.255) - whereupon hosts can pertain to multicast groups. Hosts that have the same multicast address are part of the same host group.






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






46. 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.






47. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.






48. 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.






49. The ability of a protocol. system or component to be modified to fit a new need.






50. 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.