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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. Normally - a relatively general term that refers to dfifferent kinds of networking devices. Historically - when routers were created - they were called gateways






2. 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.






3. A company that helps create the Internet by providing connectivity to enterprises and individuals - as well as interconnecting to other ISPs to create connectivity to all other ISPs.






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






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






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. A numbering system characterized by 1 and 0






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






9. 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.






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






11. 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.






12. Data that directs a process. a flag in a data-link frame is an example of control data.






13. 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






14. A group of 8 binary bits. It is similar to - but not the same as - a byte. One Application in computer network is to use octets to divide IPv4 addresses into four components






15. 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.






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






17. 1. a collision domain that is a section of a LAN that is bound by bridges - routers or switches. 2. In a LAN using a bus topology - a segment is a continuous electrical circuit that is often connected to other such segments with repeaters. 3. When us






18. The IPv4 multicast addresses 224.0.0.0 to 224.0.0.255. These addresses are to be used for multicast groups on a local network. Packets to these destinations are always transmitted with a TTTL value of 1






19. An addressing scheme in which a network is partitioned into sections - with the section identifier forming one part of each destination's address and the destination identifier forming another






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






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






22. 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.






23. Communication that does not use a common clock between the sender and receiver. To maintain timing - additional information is sent to synchronize the receive circuit to the incoming data. For ethernet at 10MBPS - the ethernet devices do not send ele






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






25. A removable component that has memory space for storage. Used on the router or switch for storing the compressed operating system image.






26. The largest IP packet size allowed to be sent out a particular interface. Ethernet interfaces default to an MTU of 1500 because the data field of an Ethernet frame should be limited to 1500 bytes - and the IP packet sits inside the ethernet frame's d






27. A device that connects end devices to the network or interconnects different networks. A router is an example of an intermediary device.






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






29. As filed in the TCP header that is set in a sent segment - signifies the maximum amount of unacknowledged data the host is willing to receive before the other sending host must wait for an acknowledgment.






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






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






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






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






34. The lower of the two sublayers of the IEEE standard for ethernet. It is also the name of that sublayer






35. 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






36. A part of a computer network that every device communicates with using the same physical medium. Network segments are extended by hubs or repeaters.






37. 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.






38. 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.






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






40. 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.






41. 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






42. A physical or a logical area in a LAN where the signals sent by the interfaces ma be subject o being combined. Within a collision domain - if a device sends a frame on a network segment - every other device on that same segment will receive that fram






43. A process that uses the same ARP messages as a normal ARP - but by which a router replies instead of the host listed in the ARP request. When a router sees an ARP request that cannot reach the intended host - but for which the router knows a route to






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






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






46. 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.






47. MDIX is an alternative operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs used in the hub port is in a crossover configuration. This allows you to use a straight-through cable to interconnect the hub to another hub.






48. The glass fibers inside certain cables over which light is transmitted to encode 0 and 1






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






50. To transfer data from the computer functioning as a server to the client computer you are using.