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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. 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.






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






3. 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.






4. An addressing scheme in which a network is partitioned into sections - with the section identifier forming one part of each destination's address and the destination identifier forming another






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






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






7. 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 This is now obsolete and has been replaced by pulse code modulation






8. A name - as defined by DNS that uniquely identifies a computer in the internet. DNS servers can then respond to the DNS requests by supplying the IP address that is used by the computer that has a particular domain name. This term also refers to the






9. 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






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






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. An ethernet frame that is less than 64 bytes in size. Runts are caused by collisions and are also know as collision fragments






13. 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.






14. 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






15. 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.






16. The header defined by the IP. Used to create IP packets by encapsulating data supplied by higher-layer protocol (such as TCP) behind an IP header.






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






18. Also known as boolean algebra. These consist of the AND OR and IF operations






19. 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.






20. A network device that has an IPv4 address assigned to it to communication over a network.






21. The passage of a data packet between two network nodes.






22. 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






23. 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.






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






25. 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






26. 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.






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






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






29. Using values between 1024 and 49 -151 these numbers are equivalent to well-known ports in concept - but they are specifically used for nonprivileged application processes.






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






31. 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.






32. 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.






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






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






35. An IPV4 addressing scheme that uses a subnet mask that does not follow classful addressing limitations. It provides increased flexibility when dividing ranges of IP addresses into separate networks. Classless addressing is considered the best in curr






36. 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






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






38. Radio frequencies that creat noise that interferes with information being transmitted across unshielded copper cabling.






39. A dotted decimal number defined by the IPv4 protocol to represent a network or subnet. It represents the network that hosts reside in. Also called a network number or network ID.






40. 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.






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






42. A request for information. Queries are answered with replies.






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






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






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






46. Line code in which 1s are represented by one significant condition and 0s are represented by another.






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






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






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






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