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CCNA Network Fundamentals Vocab
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Subjects
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cisco
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it-skills
,
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. This field of a frame signals the beginning or end of a frame.
URG
gateway
Internet control message protocol
delimiter
2. A network architecture designed to eliminate network downtime cause by a single point of failure.
syntax
local area network
redundancy
kilobits per second
3. 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
host address
limited broadcast
directed broadcast
domain name
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
switch table
connection oriented
window size
subnet mask
5. 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
association identity AID
maximum transmission unit
bandwidth
multicast group
6. 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
bit
channel
ARP cache
nslookup
7. 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.
Institute of Electrical and Electronics Engineers
fiber-optic cable
Requests for Comments
bridging
8. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.
bit
Internet service provider
multicast group
media access control
9. 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.
fiber optics
asynchronous
bridge table
extranet
10. In the telnet application - commands are always introduced by a character with the decimal code 255 - known as the Interpret as Command character.
AND
Interpret as command
thinnet
Mail user agent
11. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.
collaborative
scheme
switch table
selective forwarding
12. 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.
quality of service
physical network
slash format
radix
13. Routing that adjusts automatically to network topology or traffic changes.
dynamic routing
control data
acknowledgment
high-order bit
14. A list of router holds in memory for the purpose of deciding how to forward packets.
AND
routing table
Internet Assigned Numbers Authority
address pool
15. A 32-bit field in the tcp segment header that specifies the sequence number of the next byte this host expects to receive as a part of the TCP session. It is used to recognize lost packets and flow control
acknowledgment number
session
ACK
RJ-45
16. Random-access memory that does not lose its contents when the computer is shut down
nonvolatile RAM (NVRAM)
IP header
flow control
ping sweep
17. The limited CLI mode where the commands available to the user are a subset of those available at the privileged level. In general - use the user Exec commands to temporarily change terminal settings - perform basic tests and list system information.
host address
hop
host
user executive mode
18. To transfer data from the computer functioning as a server to the client computer you are using.
unshieled twisted-pair
download
Logical link control
Pad
19. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.
keyword
TCP/IP
carrier
dynamic routing
20. 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
locally administered address
Internet service provider
pulse amplitude modulation
router protocol
21. 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.
limited broadcast
frame
source
virtual circuit
22. 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.
firewall
Interpret as command
instant messaging
prviate address
23. 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
query
transparent bridging
overhead
code gropu
24. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability
Open systems interconnection
network baseline
manchester encoding
ping sweep
25. 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
media independent
4b/5b
octet
Time to live
26. A computer program that runs in the background and is usually initiated as a process. Daemons often support server processes.
distributed
virtual circuit
daemon
control data
27. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
virtual local area network
directly connected network
user executive mode
URG
28. The lower of the two sublayers of the IEEE standard for ethernet. It is also the name of that sublayer
Open systems interconnection
media access control
Address resolution protocol
network address
29. In networking - a measurement of the speed of bits that can be transmitted over a particular link. It is the amount of data that can be transmitted in a certain amount of time. For digital bandwidth it is usually expressed in bits per second.
logical topology
local area network
bandwidth
priority queing
30. 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
physical address
server
locally administered address
media-dependent interface crossover
31. A logical storage in the host's RAM to store ARP entries
flash
connectionless
ARP cache
enable password
32. The network that combines enterprise networks - individual users - and ISPs into a single global IP network.
Institute of Electrical and Electronics Engineers
Internet
ARP table
tracert
33. 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
daemon
media-dependent interface (MDI)
thinnet
network
34. 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
reserved link-local addresses
link-local address
argument
PSH
35. A broadcast that is sent to a specific network or series of networks.
resource records
instant messaging
transparent bridging
limited broadcast
36. When used generically - this term refers to end-user data along with networking headers and trailers that are transmitted through a network. When used specifically - it is end-user data - along with the network or Internet layer headers and any highe
packet
dynamic routing
daemon
dotted decimal
37. In ethernet - the results of two nodes transmitting simlutaneously. The signals from each device are damaged when they combine on the media
most significant bit
collision
shielded twisted pair cable
local area network
38. A common term for 10base5 ethernet - referring to the fact that 10base5 cabling is thicker than the coaxial cabling used for 10base2.
multicast group
data termianl equipment
Thicknet
most significant bit
39. 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.
router
prefix length
carrier sense multiple access (CSMA)
protocol
40. 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.
connectionless
flash
locally administered address
smtp
41. 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.
connectionless
SYN
ACK
Internet control message protocol
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
synchronous
default gateway
Internet Engineering Task Force
forwarding
43. The layer 3 address to which the data is going.
symmetric switching
Open systems interconnection
packet
destination IP address
44. In networking - a general term referring to any energy signal on a transmission medium that is not part of the signal used to transmit data over that medium.
ARP poisoning
store and forward
noise
Time to live
45. A network created for devices located in a limited geographic area - through which the company owning the LAN has the right to run cables.
bit time
local area network
cyclic redundancy check
full duplex
46. A technique used to attack an ethernet network by sending fake ARP messages to an ethernet LAN. These frames contain false MAC addresses that confuse network devices - such as switches. As a result - frames intended for one node can be mistakenly sen
ARP poisoning
binary
scheme
high-order bit
47. 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
hierarchical addressing
network segment
keyword
prviate address
48. An IPV4 addressing scheme that uses a subnet mask that does not follow classful addressing limitations. It provides increased flexibility when dividing ranges of IP addresses into separate networks. Classless addressing is considered the best in curr
classless addressing
connectionless
flash
4b/5b
49. 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
transparent bridging
dynamic routing
Organizational Unique Identifier
hierarchical addressing
50. A unit of measurement of the number of times 1000 bits can be transmitted in 1 second. 1 kbps = 1000bps
session
store and forward
kilobits per second
radix
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