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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 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.






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






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






4. 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.






5. A network topology characterized by a central location connected to multiple hubs. In an extended star - these interconnected hubs may be connected to more hubs. It is essentially a hierarchical topology but typically is drawn with the central site i






6. 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.






7. 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.






8. Real-time communication between two or more people through text. The text is conveyed through computers connected over a network such as the internet. files can also be transferred through the IM program to share files.






9. A temporary storage where data that has been retrieved or calculated and is accessed frequently can be stored. After the data is stored in the cache - the processes can access the cached copy instead of accessing the original data. A cache reduces th






10. The header defined by the IP. Used to create IP packets by encapsulating data supplied by higher-layer protocol (such as TCP) behind an IP header.






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






12. 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






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






14. A process used to verify the identity of a person or process






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






16. 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






17. An address used to represent a transmission from one device to all devices. In ethernet - the sepcial ethernet address FFFF.FFFF.FFFF is used as a destination MAC address to cause a frame to be sent to all devices on an ethernet LAN. In IPV4 - each s






18. 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.






19. A common name for ethernet technology that operates at 100 mbps.






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






21. A method of internal processing by LAN switches. The switch must receive the entire frame before it sends the first bit of the frame. Store and forward switch is the method used by cisco switches.






22. 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






23. A network that incorporates both optical fiber along with coaxial cable to create a broadband network. commonly used by cable tv companies.






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






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






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






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






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






30. The learning of source addresses on incoming frames and adding them to the bridging table. After the table has been completed and when a frame is received on one of the bridge's interfaces - the bridge looks up the frame's destination address in its






31. 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.






32. 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.






33. In LAN switches a reference to cases in which a frame is forwarded - or switche - when the incoming and outgoing interfaces use the same speed. It is the opposite of asymmetric switching.






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






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






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






37. 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.






38. The range of ip addresses that can be assigned by the DHCP server.






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






40. The process by which a device adds networking heads and trailers to data from an application for the eventual transmission of the data onto a transmission medium.






41. 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.






42. 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.






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






44. A form of signal modulation where the message information is encoded in the amplitude of series of signal pulses. It transmits data by varying the aplitunes of the individual pulses. This is now obsolete and has been replaced by pulse code modulation






45. Unique addresses that are public domain addresses.






46. 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






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






48. A dotted decimal number that helps identify the structure of IP addresses. The mask represents the network and subnet parts of related IP addresses with binary 1s and the host part of related IP addresses with binary 0s






49. 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.






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