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






2. A logical connection between devices in which the frames are passed between the devices. Virtual circuits are independent of the physical structure and may be established through multiple physical devices.






3. Computer hardware - typically used for LANS - that allows the computer to connect to some network cable. The NIC can then send and receive data over the cable at the direction of the computer.






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






5. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability






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






7. 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.






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






9. 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






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






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






12. A group defined by a class D address (multicast - ranging from 224.0.0.0 to 239.255.255.255) - whereupon hosts can pertain to multicast groups. Hosts that have the same multicast address are part of the same host group.






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






14. 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






15. 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.






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






17. A 1-bit field in the TCP header that is used by a device that wants to terminate its session with the other device. This is done by inserting the FIN flag in the flag field found in the TCP segment






18. In networking - a measurement of the speed of bits that can be transmitted over a particular link. It is the amount of data that can be transmitted in a certain amount of time. For digital bandwidth it is usually expressed in bits per second.






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






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






21. Refers to whether the performance of a device - attached to a particular type of LAN - can be accurately predicted. Token Ring LANS are deterministic - but ethernet LANS are non deterministic.






22. 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






23. A logical storage in the host's RAM to store ARP entries






24. The optical or electrical impulse on a physical medium for purposes of communication.






25. Media access methodology in which a node wishing to transmit listens for a carrier wave before trying to send. If a carrier is sensed - the node waits for the transmission in progress to finish before initiating its own transmission.






26. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.






27. The dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.






28. A process where multiple digital data streams are combined into one signal.






29. When used generically - this term refers to end-user data along with networking headers and trailers that are transmitted through a network. When used specifically - it is end-user data - along with the network or Internet layer headers and any highe






30. 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.






31. 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






32. 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






33. An organization that assigns the numbers important to the proper operation of the TCP/IP protocol and the Internet - including assigning globally unique IP addresses.






34. The IP address of the originating host that is placed into the IP packet header.






35. 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.






36. 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.






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






38. 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.






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






40. A physical or a logical area in a LAN where the signals sent by the interfaces ma be subject o being combined. Within a collision domain - if a device sends a frame on a network segment - every other device on that same segment will receive that fram






41. A group of 8 binary bits. It is similar to - but not the same as - a byte. One Application in computer network is to use octets to divide IPv4 addresses into four components






42. 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.






43. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.






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






45. A corporate system such as a website that is explicitly used by internal employees. Can be assessed internally or remotely






46. 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.






47. An application level network protocl mainly applied to shared access to files - printers - serial ports - and miscellaneous communications between nodes on a network.






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






49. 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.






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







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