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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. 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






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






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






4. A network device that accesses a service on another computer remotely by accessing the network.






5. The devices and connections of a communications network that comprise the network end of the user to network interface. The DCE provides a physical connection to the network - forwards traffic - and provides a clocking signal used to synchronize data






6. Physical medium that uses glass or plastic threads to transmit data. A fiber-optic cable consists of a bundle of these threads - each of which is capable of transmitting data into light waves.






7. A common name for ethernet technology that operates at 100 mbps.






8. 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.






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






10. A field in the IP header that prevents a packet form indefinitely looping around an IP internetwork. Router decrements the TTL field each time they forward a packet - and if they decrement the TTL to 0 - the router discards the packet - which prevent






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






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






13. 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






14. A group of IP addresses that have the same value in the first part of the IP addresses - for the purpose of allowing routing to identify the group by the inital part of the addresses. IP addresses in the same subnet typically sit on the same network






15. A convention for writing IP addresses with four decimal numbers - ranging from 0 to 255 - with each octet representing 8 bits of the 32 bit IP address. The term originates from the fact that each of the four decimal numbers is separated by a period.






16. A dotted decimal number that helps identify the structure of IP addresses. The mask represents the network and subnet parts of related IP addresses with binary 1s and the host part of related IP addresses with binary 0s






17. 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.






18. An international - nonprofit organization for the advancement of technology related to eletricity. IEEE maintains the standards defining many LAN protocols.






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






20. 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.






21. The lower of the two sublayers of the IEEE standard for ethernet. It is also the name of that sublayer






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






23. A model that consists of various layers that enable the development and explanation of technology to be done on a modular basis. This allows interoperability among different technologies among the different layers.






24. 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.






25. The largest IP packet size allowed to be sent out a particular interface. Ethernet interfaces default to an MTU of 1500 because the data field of an Ethernet frame should be limited to 1500 bytes - and the IP packet sits inside the ethernet frame's d






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






27. An internet wide system by which a hierarchical set of DNS servers collectively hold all the name IP address mappings - with DNS servers referring users to the correct DNS server to successfully resolve a DNS name.






28. 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.






29. A list of router holds in memory for the purpose of deciding how to forward packets.






30. An IPv4 address in the range of 169.254.1.0 to 169.254.254.255. Communication using these addresses is used with a ttl of 1 and limited to the local network






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






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






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






34. Random-access memory that does not lose its contents when the computer is shut down






35. Somtimes called place-value notation - this is a numeral system in which each position is related to the next by a constant multiplier - a common ration - called the base or radix of that numeral system.






36. 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






37. 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.






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






39. 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.






40. A network architecture designed to eliminate network downtime cause by a single point of failure.






41. 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






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






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






44. Data that directs a process. a flag in a data-link frame is an example of control data.






45. A grouping of code that meets a certain - already specified - condition for entering in that certain group.






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






47. 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






48. 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.






49. A number used in the 802.11 header to specify the session between a wireless client and the access point.






50. Routing that adjusts automatically to network topology or traffic changes.