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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 written specification that defines what tasks a service or device should perform. Each protocol defines messages - often in the form of headers - plus the rules and processes by which these messages are used to achieve some stated purpose.






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






3. A rectangular cabling connector with eight pins - often used with ethernet cables.






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






5. 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.






6. 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.






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






8. A logical network composed of all the computers and networking devices that can be reached by sending a frame to the data link layer broadcast address.






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






10. In networking - a symbol used when drawing network diagrams that represent a part of the network whose details can be ignored for the purposes of the diagram.






11. 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






12. 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.






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






14. To change the energy levels transmitted over some networking medium to transmit bits over that medium.






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






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






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






18. In IP subnetting - this refers to the portion of a set of IP addresses whose value must be identical for the addresses to be in the same subnet.






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






20. 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.






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






22. Defines which wires in a cable should connect to each pin on the connectors on both ends of a cable. For example - a UTP cable used for ethernet - used for a straight-through cable pinout - connects the wire at pin 1 on one end with the pin 1 on the






23. A 32-bit field in the tcp segment header that specifies the sequence number of the next byte this host expects to receive as a part of the TCP session. It is used to recognize lost packets and flow control






24. 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.






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






26. DNS data records. Their precise format is defined in RFC 1035. The most important fields in a resource record are Name - class - type and data.






27. 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






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 numbering system characterized by 1 and 0






30. Communication that does not use a common clock between the sender and receiver. To maintain timing - additional information is sent to synchronize the receive circuit to the incoming data. For ethernet at 10MBPS - the ethernet devices do not send ele






31. 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.






32. 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.






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






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






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






36. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.






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






38. A removable component that has memory space for storage. Used on the router or switch for storing the compressed operating system image.






39. Program used to download and send email. Email clients use POP3 to receive emails and use SMTP to send emails. Also called an email client






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






41. 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






42. 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






43. 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.






44. A protocol used to dynamically assign IP configurations to hosts. The services defined by the protocol are used to request and assign an IP address - default gateway - and DNS server address to a network host.






45. Can refer to computer hardware that is to be used by multiple concurrent users. Alternatively - this term can refer to computer software that provides services to many users. For example - a web server consists of web server software running on some






46. 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.






47. 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






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






49. Unique addresses that are public domain addresses.






50. A logical storage in a host's RAM to store arp entries.