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






2. The normal operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs in the hub port is in a normal configuration. Some hubs provide a media-dependent interface/media-dependent interface - crossover switch. This switch is usu






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






4. 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






5. 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.






6. The IPv4 address block 192.0.2.0 to 192.0.2.255 that is set aside for teaching and learning purposes. These addresses can be used in documentation and network examples.






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






8. In LAN switches a reference to cases in which a frame is forwarded - or switche - when the incoming and outgoing interfaces use the same speed. It is the opposite of asymmetric switching.






9. 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






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






11. 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.






12. A related set of communications transactions between two or more network devices.






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






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






15. Information systems that allow the creation of a document or documents that can be edited by more than one person in real time






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






17. The retransmission delay used with CSMA/CD when a collision occurs. The algorithm forces each sender that detected the collisions to delay a random amount of time before attempting to retransmit.






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






19. A delineation of networking protocols and standards into different categories - called layers - along with definitions of which sets of standards and protocols need to be implemented to create products that can be used to create a working network






20. TCP or UDP ports that range from 49152 to 65535 and are not used by any defined server applications.






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






22. The bit position in a binary number having the greatest value. The most significant bit is sometime referred to as the leftmost bit.






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






24. The time required for some network pdu's to be sent and received - and a response PDU to be sent and received. In other words - the time between when a device sends data and when the same device receives a response.






25. Translation RFC 1918 addresses to public domain addresses. Because RFC 1918 addresses are not routerd on the Internet - hosts accessing the Internet must use public domain addresses.






26. The first half of a MAC address. Manufactures must ensure that the value of the OUI has been registered with the IEEE. This value identifies the manufacturer of any Ethernet NIC or interface.






27. 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.






28. The MAC algorithm used by ethernet devices in a shared media. The protocol requires a node wishing to transmit to listen for a carrier signal before trying to send. If a carrier is sensed - the node waits for transmission in progress to finish before






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






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






31. In ethernet - the process performed by a bridge or switch when it decides that it should not forward a frame out another port






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






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






34. 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.






35. 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.






36. 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






37. The layer 2 pdu that has been encoded by a data link layer protocol for digital transmission. Some different kinds of frames are ethernet frames and PPP frames.






38. An IP address that has been registered with IANA or one of its member agencies - which guarantees that the address is globally unique. Globally unique public IP addresses can be used for packets sent through the Internet.






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






40. A network scanning technique used to identify which host IP addresses are operational.






41. 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






42. The portion of a binary number that carries the most weight - the one written farthest to the left. High-order bits are the 1s in the network mask.






43. IPv4 address of a network host. When talking about host addresses - they are the network layer addresses.






44. The MAC address that is permanently assigned to a LAN interface or NIC. It is called burned-in because the address is burned into a chip on the card - and the address cannot be changed. Also called universally administered address.






45. 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






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






47. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.






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






49. An encoding scheme 4B/5B uses 5-bit symbols and codes to represent 4 bits of data. 4B/5B is used in 100Base-tx ethernet.






50. 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