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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. 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.






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. An international standards body that defines many networking standards. Also - the standards body that created the OSI model.






4. 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






5. 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.






6. A special reserved IPv4 address - 127.0.0.1 that can be used to test TCP/IP applications. Packets sent to 127.0.0.1 by a computer never leave the computer or even require working NIC. Instead - the packet is processed by IP at the lowest layer and is






7. 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.






8. A network that is connected to a device's interface. For example networks that interface with the router are known to be directly connected. Devices learn their initial IP routes based on being connected to these subnets.






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






10. A data link layer address - for example a MAC address






11. From the priviledged mode - you can enter the device's global caonfiguration mode. From global configuration mode - you can configure global parameters or enter other configuration submodes such as interface - router and line configuration submodes.






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






13. The time required to send a single bit over some transmission medium. The time can be calculated at 1/speed - where speed is the number of bits per second sent over the medium






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






15. In a shared media ethernet network - a signal generated by the transmitting devices that detects the collision. The jam signal continue to transmit for a specified period to ensure that all devices on the network detect the collision. The jame signal






16. A drag-and-drop network simulator developed by Cisco to design - configure and troubleshoot network equipment within a controlled - simulated program environment.






17. 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.






18. 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






19. The management of data flow between devices in a network. It is used to avoid too much data arriving before a device can handle it - causing data overflow.






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 process of forwarding frames in a switch or a bridge from one port to another port or from segment to segment






22. 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.






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






24. A time period between ethernet frames that allows fairness with the CSMA/CD algorithm. Without a space between frames in other words - without some time with no frames being sent a NIC might always listen for silence - never hear silence and therefor






25. A process used to verify the identity of a person or process






26. Normally - a relatively general term that refers to dfifferent kinds of networking devices. Historically - when routers were created - they were called gateways






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






28. 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.






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






30. The standards body responsible for the development and approval of TCP/IP standards






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






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






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






34. A layer 4 protocl of TCP/IP model - TCP lets applications guarantee delivery of data across a network.






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






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






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






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






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






40. A command on many computer operating systems that discovers the IP addresses - and possibly host names - of the routers used by the network when sending a packet from one computer to another.






41. 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.






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






43. 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






44. 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.






45. Unique addresses that are public domain addresses.






46. 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






47. A device such as a desktop or mobile device that is used by an end user.






48. 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.






49. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.






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