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






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






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






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






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






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






8. 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.






9. A term that describes IPv4 packets sent to all hosts in a particular network. In a directed broadcast - a single copy of the packet is routed to the specified network - where it is broadcast to all hosts on that network






10. A general type of cable - with the cable holding twisted pairs of copper wires and the cable itself having little shielding.






11. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.






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






13. 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






14. A device on a network that serves as an access point to other networks. A default gateway is used by a host to forward IP packets that have destination addresses outside the local subnet. A router interface typically is used as the default gateway. W






15. 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.






16. In TCP - the process of taking a large chunk of data and breaking it into small enough pieces to fit within a TCP segment without breaking any rules about the maximum amount of data allowed in a segment.






17. 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






18. The IPv4 multicast addresses 224.0.0.0 to 224.0.0.255. These addresses are to be used for multicast groups on a local network. Packets to these destinations are always transmitted with a TTTL value of 1






19. A network of computers that behave as if they are connected to the same network segment - even through they might be physically located on different segments of a LAN. VLANs are configured through software on the switch and router.






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






21. The limited CLI mode where the commands available to the user are a subset of those available at the privileged level. In general - use the user Exec commands to temporarily change terminal settings - perform basic tests and list system information.






22. 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






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






24. A network device - typically connected to a range of LAN and WAN interfaces - that forwards packets based on their destination IP addresses.






25. A host or node that participates in some form of a group. For example - p2p technology defines a group of peers that participate jointly in the same activity - each one having a server and client component.






26. A group of devices associated by the arrangement of a hierarchial addressing scheme. Devices in the same logical network that share a common network portion of their Layer 3 addresses.






27. 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






28. A type of hash function that is used to produce a small - fixed size checksum of a block of data - such as a packet or a computer file. A CRC is computed and appended before transmission or storage - and verified afterward by the recipient to confirm






29. A network model defined by the IETF that has been implemented on most computers and network device in the world.






30. A 1-bit flag in the tcp header that indicates the acknowledgment field is valid.






31. 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.






32. 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






33. 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.






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






35. 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.






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






37. 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






38. A network with a geographic size between a LAN and a WAN. Typically used by service providers to create a highspeed network in a major metropolitan area where many customers might want high speed services between large sites around a city.






39. The cabling and connectors used to interconnect the network devices.






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






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






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 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






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






45. 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.






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






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






48. A unicast IP address that is considered to have three parts: a network part - a subnet part - and a host part. The term classful refers to the fact that classful network rules are first applied to the address - and then the rest of the address can be






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






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






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