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CCNA Network Fundamentals Vocab

Subjects : cisco, it-skills, ccna
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Interface by magnetic signals caused by the flow of electricity. EMI can cause reduced data integrity and increased error rates on transmission channels. The physics of this process are that electrical current creates magnetic fields - which in turn






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






3. 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






4. 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.






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






6. A type of network cabling that includes twisted-pair wires - with shielding around each pair of wires - as well as another shield around all wires in the cable.






7. The method of for finding a host's hardware address from its IPv4 network layer address.






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






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






10. 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.






11. 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






12. 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






13. 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






14. A technique used to attack an ethernet network by sending fake ARP messages to an ethernet LAN. These frames contain false MAC addresses that confuse network devices - such as switches. As a result - frames intended for one node can be mistakenly sen






15. 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.






16. A series of documents and memoranda encompassing new research - innovations and methodologies applicable to Internet technologies. RFCs are a reference for how technologies should work.






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






18. 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.






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






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






21. An access method used with some LAN technologies by which devices access the media in a controlled manner. This access to the LAN is managed using a small frame called a toke. A device can send only when it has claimed the use of the token.






22. 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.






23. A 1-bt flag in the TCP header used to indicate the initial value of the sequence number. The SYN flag is only set in the first two segments of the three-way TCP connection establishment sequence.






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






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






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






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






28. 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.






29. A member of a multicast group. Every multicast client in each group has the same IP address. Multicast addresses begin with 224... and end with 239...






30. 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






31. 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.






32. A device that connects end devices to the network or interconnects different networks. A router is an example of an intermediary device.






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






34. A service or a program to look up information in the DNS






35. 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.






36. A device that connects multiple network segments at the data link layer of the OSI model. Bridges were the predecessor to LAN switches.






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






38. 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






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






40. 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.






41. 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.






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






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






44. 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






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






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






47. 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






48. 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.






49. This field of a frame signals the beginning or end of a frame.






50. 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.







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