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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. Path through an internetwork through which packets are forwarded.






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






3. In TCP - the process of taking a large chunk of data and breaking it into small enough pieces to fit within a TCP segment without breaking any rules about the maximum amount of data allowed in a segment.






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 logical connection between devices in which the frames are passed between the devices. Virtual circuits are independent of the physical structure and may be established through multiple physical devices.






6. 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






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






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






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






10. The MAC address that is permanently assigned to a LAN interface or NIC. It is called burned-in because the address is burned into a chip on the card - and the address cannot be changed. Also called universally administered address.






11. The network that combines enterprise networks - individual users - and ISPs into a single global IP network.






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






13. A part of the ethernet frame that fills in the data field to ensure that the data field meets the minimum size requirement of 46 bytes.






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






15. The actual data transfer rate between two computers at some point in time. Throughput is impacted by the slowest-speed link used to send data between the two computers - as well as myriad variables that might change during the course of a day.






16. A network scanning technique used to identify which host IP addresses are operational.






17. The first half of a MAC address. Manufactures must ensure that the value of the OUI has been registered with the IEEE. This value identifies the manufacturer of any Ethernet NIC or interface.






18. 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.






19. 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






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






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






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






23. 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






24. A MAC address that can be configured on a device. The LAA can be used in place of the BIA . This means that you can replace a NIC or use a substitute device without changing the address used by the network to access the station.






25. 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.






26. 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.






27. 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.






28. 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.






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






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






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






32. Application-level throughput. It is the number of useful bits per unit of time from a certain source address to a certain destination - excluding protocol overhead and excluding retransmitted data packets.






33. A signal on a medium used to support the transmission of data. Data is carried over the medium by modulation.






34. 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






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






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






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






38. 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.






39. The bit position in a binary number having the greatest value. The most significant bit is sometime referred to as the leftmost bit.






40. 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...






41. The devices and connections of a communications network that comprise the network end of the user to network interface. The DCE provides a physical connection to the network - forwards traffic - and provides a clocking signal used to synchronize data






42. 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.






43. 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.






44. 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






45. A service or a program to look up information in the DNS






46. 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






47. Network layer protocol in the TCP/IP stack offering a connectionless internetwork service. IP provides features for addressing - type-of-service specification - fragmentation and reassembly - and security.






48. 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






49. A broadcast that is sent to a specific network or series of networks.






50. 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