Test your basic knowledge |

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






2. A type of network cabling that includes twisted-pair wires - with shielding around each pair of wires - as well as another shield around all wires in the cable.






3. The connection of devices on a common media. Sometimes a physical network is also referred to as a network segment.






4. 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






5. A field in the IP header that prevents a packet form indefinitely looping around an IP internetwork. Router decrements the TTL field each time they forward a packet - and if they decrement the TTL to 0 - the router discards the packet - which prevent






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






7. Line code in which 1s are represented by one significant condition and 0s are represented by another.






8. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.






9. 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






10. 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.






11. The extent of a certain item. For example - an address scope is also known as a range of addresses from beginning of the range to the end.






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






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






14. 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.






15. Routing table entry that is used to direct frames for which a next hop is not explicitly listed in the routing table. This route is used to forward a packet when no other known route exists for a give packet's destination address.






16. An IPv4 address in the range of 169.254.1.0 to 169.254.254.255. Communication using these addresses is used with a ttl of 1 and limited to the local network






17. 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.






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






19. Translation RFC 1918 addresses to public domain addresses. Because RFC 1918 addresses are not routerd on the Internet - hosts accessing the Internet must use public domain addresses.






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






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






22. 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.






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






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






25. 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.






26. 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.






27. The structure and order of words in a computer language






28. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.






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






30. 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.






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






32. 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






33. 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






34. A model that consists of various layers that enable the development and explanation of technology to be done on a modular basis. This allows interoperability among different technologies among the different layers.






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






36. 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.






37. 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






38. 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.






39. 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






40. 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






41. 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






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






43. 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






44. 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






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






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






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






48. 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.






49. A related set of communications transactions between two or more network devices.






50. In ethernet - the process performed by a bridge or switch when it decides that it should not forward a frame out another port