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CCNA Network Fundamentals Vocab
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cisco
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it-skills
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ccna
Instructions:
Answer 50 questions in 15 minutes.
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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. Routing that adjusts automatically to network topology or traffic changes.
authoritative
dynamic routing
proxy arp
slash format
2. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5
thinnet
Open systems interconnection
plug-in
encryption
3. The IEEE 802.2 standard that defines the upper sublayer of the Ethernet Layer 2 specifications.
directly connected network
well known ports
Logical link control
gigabit ethernet
4. 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
firewall
session
subnet mask
fiber optics
5. A grouping of code that meets a certain - already specified - condition for entering in that certain group.
code gropu
interframe spacing
directly connected network
hierarchical addressing
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.
connectionless
round-trip time
kilobits per second
network segment
7. 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
connectionless
protocol data unit
burned in address
bit time
8. A logical storage in a host's RAM to store arp entries.
administratively scoped address
dispersion
latency
ARP table
9. An application level network protocl mainly applied to shared access to files - printers - serial ports - and miscellaneous communications between nodes on a network.
overhead
nslookup
server message block
broadcast domain
10. A network model defined by the IETF that has been implemented on most computers and network device in the world.
Internet Engineering Task Force
TCP/IP
control data
physical media
11. A dotted decimal number defined by the IPv4 protocol to represent a network or subnet. It represents the network that hosts reside in. Also called a network number or network ID.
logical network
Regional Internet Registries
network address
ARP cache
12. Binary digit used in the binary numbering system. Binary digits are units of information storage and communication in computing. Each bit can be either a 0 or a 1.
transparent bridging
bit
channel service unit/data service unit
link-local address
13. Defines which wires in a cable should connect to each pin on the connectors on both ends of a cable. For example - a UTP cable used for ethernet - used for a straight-through cable pinout - connects the wire at pin 1 on one end with the pin 1 on the
scope
global configuration mod
pinout
Internet backbone
14. An international - nonprofit organization for the advancement of technology related to eletricity. IEEE maintains the standards defining many LAN protocols.
Institute of Electrical and Electronics Engineers
ARP cache
segmentation
proxy arp
15. 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.
directed broadcast
internetwork
goodput
directly connected network
16. A host or node that participates in some form of a group. For example - p2p technology defines a group of peers that participate jointly in the same activity - each one having a server and client component.
server message block
fiber optics
quality of service
peer
17. 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.
acknowledgment number
IP header
segmentation
prefix length
18. A series of documents and memoranda encompassing new research - innovations and methodologies applicable to Internet technologies. RFCs are a reference for how technologies should work.
reserved link-local addresses
connection oriented
server
Requests for Comments
19. 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
bit
SYN
global configuration mod
prviate address
20. A unit of measurement of the number of times 1000 bits can be transmitted in 1 second. 1 kbps = 1000bps
source IP address
server message block
kilobits per second
dynamic or private ports
21. A signal on a medium used to support the transmission of data. Data is carried over the medium by modulation.
delimiter
download
bridge
carrier
22. 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.
routing table
extended star
overhead
cloud
23. A written specification that defines what tasks a service or device should perform. Each protocol defines messages - often in the form of headers - plus the rules and processes by which these messages are used to achieve some stated purpose.
layered model
selective forwarding
protocol
MAC table
24. Interface by magnetic signals caused by the flow of electricity. EMI can cause reduced data integrity and increased error rates on transmission channels. The physics of this process are that electrical current creates magnetic fields - which in turn
switch
locally administered address
intranet
electromagnetic interface
25. A rectangular cabling connector with eight pins - often used with ethernet cables.
RJ-45
scope
test-net address
ARP cache
26. A computer program that runs in the background and is usually initiated as a process. Daemons often support server processes.
carrier
daemon
burned in address
pinout
27. A protocol that allows a computer to retrieve email from a server.
well known ports
post office protocol
Mail user agent
directly connected network
28. A form of transmission where one device transmits to all devices within the network or on another network
connectionless
broadcast
dns resolver
unshieled twisted-pair
29. A method of expressing a network prefix. It uses a forward slash / followed by the network prefix.
runt frame
slash format
tracert
locally administered address
30. The IP address of the originating host that is placed into the IP packet header.
source IP address
gateway
connectionless
carrier sense multiple access (CSMA)
31. The optical or electrical impulse on a physical medium for purposes of communication.
signal
most significant bit
distributed
console port
32. 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.
asynchronous
cloud
dynamic host configuration protocol
logical network
33. The network that combines enterprise networks - individual users - and ISPs into a single global IP network.
smtp
fault tolerance
Internet
user executive mode
34. 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.
default route
radio frequency interference
frame
scheme
35. 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.
TCP/IP
4b/5b
Packet Tracer
fiber-optic cable
36. A 1-bit flag in the TCP header that is used to request to the higher layers for immediate delivery of the packet.
PSH
firewall
channel service unit/data service unit
AND
37. 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.
token passing
local area network
runt frame
tracert
38. A group of devices associated by the arrangement of a hierarchial addressing scheme. Devices in the same logical network that share a common network portion of their Layer 3 addresses.
Address resolution protocol
IP
logical network
intranet
39. 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
Institute of Electrical and Electronics Engineers
Time to live
subnet
gateway
40. 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.
logical topology
redundancy
carrier
throuhpu
41. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.
gigabit ethernet
default route
protocol data unit
static route
42. A number used in the 802.11 header to specify the session between a wireless client and the access point.
association identity AID
host address
gateway
manchester encoding
43. 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
media-dependent interface (MDI)
octet
slash format
proxy arp
44. 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.
collaborative
standards
virtual local area network
Interpret as command
45. 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.
convergence
cloud
pinout
symmetric switching
46. Can refer to computer hardware that is to be used by multiple concurrent users. Alternatively - this term can refer to computer software that provides services to many users. For example - a web server consists of web server software running on some
routing table
collision
server
administratively scoped address
47. 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.
carrier sense multiple access collision detect (CSMA/CD)
Address resolution protocol
download
directly connected network
48. 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
association identity AID
Internet control message protocol
channel
Organizational Unique Identifier
49. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
protocol data unit
nonreturn to zero
shielded twisted pair cable
acknowledgment
50. 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.
plug-in
segment
Organizational Unique Identifier
forwarding
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