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CCNA Network Fundamentals Vocab

Subjects : cisco, it-skills, ccna
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. The structure and order of words in a computer language






2. An application protocol typically not used by end users. Instead - it is used by the network management software and networking devices to allow a network engineer to monitor and troubleshoot network problems.






3. Interface by magnetic signals caused by the flow of electricity. EMI can cause reduced data integrity and increased error rates on transmission channels. The physics of this process are that electrical current creates magnetic fields - which in turn






4. A 32-bit number - written in dotted decimal notation - used by the IP to uniquely identify an interface connected to an IP network. It is also used as a destination address in an IP header to allow routing - and as a source address to allow a compute






5. A device that connects to a local digital telephone loop for a WAN circuit to a serial interface on a network device - typically connecting to a router. The CSU/DSU performs physical Layer 1 signaling on WAN circuits






6. A 1-bit flag in the TCP header that is used to request to the higher layers for immediate delivery of the packet.






7. 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.






8. An IPV4 addressing scheme that uses a subnet mask that does not follow classful addressing limitations. It provides increased flexibility when dividing ranges of IP addresses into separate networks. Classless addressing is considered the best in curr






9. 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






10. 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






11. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.






12. Communication that only allows one station to receive while the other station is transmitting






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






14. A common term for 10base5 ethernet - referring to the fact that 10base5 cabling is thicker than the coaxial cabling used for 10base2.






15. The number of various unique digits - including 0 that a positional number system uses to represent numbers. For example - in the binary system (base 2) the radix is 2. In the decimal system the radix is 10.






16. This field of a frame signals the beginning or end of a frame.






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






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






19. Part of a company's intranet that is extended to users outside the company






20. A process by which an end device - after it receives data over some transmission medium - examines the headers and trailers at each successive higher layer - eventually handing the data to the correct application. Sometimes called de-encapsulation.






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






22. A method of computer processing in which different parts of a program run simultaneously on two or more computers that are communicating with each other over a network






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






24. The time required for some network pdu's to be sent and received - and a response PDU to be sent and received. In other words - the time between when a device sends data and when the same device receives a response.






25. A protocol that allows a computer to retrieve email from a server.






26. 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.






27. 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






28. 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.






29. On a switch - a table that lists all known MAC addresses - and the bridges/switch port out which the bridge/switch should forward frames sent to each MAC address.






30. Used by tcp or udp - with values between 0 and 1023 - these ports are allocated by high-privilege processes. They are used so that all clients know the correct port number to connect to.






31. 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.






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






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






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






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






36. Additional data that is provided with a command to provide information used by the execution of the command. IOS command arguments are entered at the CLI after the command






37. The MAC algorithm used by ethernet devices in a shared media. The protocol requires a node wishing to transmit to listen for a carrier signal before trying to send. If a carrier is sensed - the node waits for transmission in progress to finish before






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






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






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






41. A collection of data that establishes a reference for network performance and behavior over a period of time. This reference data is used in the future to assess the health and relative growth of network utilization.






42. Network protocols or technologies that do not use the acknowledgment system to guarantee reliable delivery of information






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






44. 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






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






46. 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.






47. A numbering system characterized by 1 and 0






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






49. 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.






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







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