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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. 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.






2. A delineation of networking protocols and standards into different categories - called layers - along with definitions of which sets of standards and protocols need to be implemented to create products that can be used to create a working network






3. 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






4. 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






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






6. 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






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






8. The normal operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs in the hub port is in a normal configuration. Some hubs provide a media-dependent interface/media-dependent interface - crossover switch. This switch is usu






9. Line code in which each bit of data is signified by at least one voltage level transition.






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






11. The passage of a data packet between two network nodes.






12. 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.






13. A combination of many IP subnets and networks - as created by building a network using routers. The term internwork is used to avoid confusion with the term network - because an internetwork can include several IP networks.






14. A protocol used between routers so that they can learn routes to add to their routing tables.






15. A network device that accesses a service on another computer remotely by accessing the network.






16. 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






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






18. 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.






19. A port on cisco devices to which a terminal or computer with a terminal emulator is connected to the network device in order to communicate and configure the network device






20. Unique addresses that are public domain addresses.






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






22. 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






23. 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






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






25. Communication that allows receipt and transmission simultaneously. A station can transmit and receive at the same time. There are no collisions with full-duplex ethernet transmision.






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






27. The layer 2 pdu that has been encoded by a data link layer protocol for digital transmission. Some different kinds of frames are ethernet frames and PPP frames.






28. The layer 3 address to which the data is going.






29. 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.






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






31. 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.






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






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






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






35. The ability of a protocol. system or component to be modified to fit a new need.






36. The table used by a switch or bridge that associates MAC addresses with the outgoing port. The switch or bridge uses this table for its forwarding/filtering decisions.






37. 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






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






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






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






41. An encoding scheme 4B/5B uses 5-bit symbols and codes to represent 4 bits of data. 4B/5B is used in 100Base-tx ethernet.






42. 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






43. A member of a multicast group. Every multicast client in each group has the same IP address. Multicast addresses begin with 224... and end with 239...






44. A control mechanism that can provide different priorities to different users or data flows - or guarantee a certain level of performance to a data flow in accordance with requests from the application program.






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






46. 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.






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






48. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.






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






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