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CCNA Network Fundamentals Vocab
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Subjects
:
cisco
,
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. An access method used with some LAN technologies by which devices access the media in a controlled manner. This access to the LAN is managed using a small frame called a toke. A device can send only when it has claimed the use of the token.
connection oriented
hub
selective forwarding
token passing
2. Additional data that is provided with a command to provide information used by the execution of the command. IOS command arguments are entered at the CLI after the command
fault tolerance
channel service unit/data service unit
Institute of Electrical and Electronics Engineers
argument
3. 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.
connection oriented
peer
Logical link control
protocol
4. 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
fast ethernet
classful addressing
link-local address
directed broadcast
5. 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.
gateway
overhead
layered model
logical network
6. The dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.
Address resolution protocol
fragmentation
most significant bit
router
7. A request for information. Queries are answered with replies.
data communications equipment
burned in address
positional notation
query
8. 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
Time to live
network baseline
media independent
multiplexing
9. 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
hub
Packet Tracer
channel
Institute of Electrical and Electronics Engineers
10. A device that connects multiple network segments at the data link layer of the OSI model. Bridges were the predecessor to LAN switches.
bridge
static route
end device
encryption
11. The IP address of the originating host that is placed into the IP packet header.
fiber optics
source IP address
burned in address
TCP
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.
SYN
address pool
bandwidth
quality of service
13. 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
Network address translation (NAT)
Interpret as command
protocol suite
bridging
14. The physical interface transceivers. It deals with Layer 1 (the physical layer - hence the PHY) of ethernet.
ethernet PHY
radio frequency interference
destination IP address
single point of failure
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.
scalability
throuhpu
server
domain name
16. 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.
router
limited broadcast
authentication
directly connected network
17. 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.
network address
intranet
symmetric switching
IP address
18. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.
hop
multicast group
International Organization for Standardization
digital logic
19. 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.
bridging
bridge table
broadcast
bandwidth
20. 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
encryption
maximum transmission unit
channel service unit/data service unit
routing
21. The design on networks that can continue to operate without interruption in the case of hardware - software or communications failures.
runt frame
classful addressing
digital logic
fault tolerance
22. 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
media access control
flooding
Requests for Comments
pulse amplitude modulation
23. To change the energy levels transmitted over some networking medium to transmit bits over that medium.
carrier sense multiple access (CSMA)
encode
routing table
Internet service provider
24. A network created for devices located in a limited geographic area - through which the company owning the LAN has the right to run cables.
collision domain
cyclic redundancy check
fault tolerance
local area network
25. In ethernet a layer 2 device that receives an electrical signal in one port - interprets the bits - and makes a filtering or forwarding decision about the frame. If it forward - it sends a regenerated signal. Switches typically have many physical por
node
network segment
switch
dotted decimal
26. 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
carrier sense multiple access collision detect (CSMA/CD)
dynamic routing
dotted decimal
authoritative
27. A high-speed line or series of connections that forms a major pathway within a network. The term is often used to describe the main network connections comprising the Internet.
Packet Tracer
Internet backbone
RST
scheme
28. The process by which a device adds networking heads and trailers to data from an application for the eventual transmission of the data onto a transmission medium.
half duplex
encapsulation
loopback
network
29. This field of a frame signals the beginning or end of a frame.
delimiter
layered model
locally administered address
console port
30. The reference to text based logical interfaces on an ios device. These are accesses using telnet or ssh to perform administrative tasks. VTY lines are also called virtual type terminal.
virtual terminal line
smtp
fiber optics
runt frame
31. The cabling and connectors used to interconnect the network devices.
physical media
instant messaging
transparent bridging
store and forward
32. The process of obscuring information to make it unreadable without special knowledge - somtimes referred to as scrambling. The process takes the data to be encrypted and applies a mathematical formula to it along with a secret number. The resulting v
bridging
layered model
store and forward
encryption
33. The process of forwarding frames in a switch or a bridge from one port to another port or from segment to segment
encryption
Packet Tracer
bridging
dynamic host configuration protocol
34. IPv4 address of a network host. When talking about host addresses - they are the network layer addresses.
host address
segment
protocol suite
prefix length
35. In the telnet application - commands are always introduced by a character with the decimal code 255 - known as the Interpret as Command character.
bridging
Interpret as command
keyword
window size
36. 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.
window size
unshieled twisted-pair
domain name
gigabit ethernet
37. 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.
end device
limited scope address
bit
round-trip time
38. In ethernet - the results of two nodes transmitting simlutaneously. The signals from each device are damaged when they combine on the media
authoritative
4b/5b
collision
connection oriented
39. In IP subnetting - this refers to the portion of a set of IP addresses whose value must be identical for the addresses to be in the same subnet.
bandwidth
prefix length
globally scoped addresses
logical network
40. Information systems that allow the creation of a document or documents that can be edited by more than one person in real time
router
collaborative
URG
locally administered address
41. 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
link-local address
ARP poisoning
single point of failure
broadcast address
42. Devices at the user end of a user-network interface that serves as a data source - destination or both. DTE connects to a data network through a DCE device and typically uses clocking signals generated by the DCE. DTE includes such devices as compute
bridge
source
intranet
data termianl equipment
43. A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type.
network segment
priority queing
ACK
maximum transmission unit
44. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.
network interface card
cache
half duplex
enable password
45. 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...
token passing
limited scope address
media independent
multicast client
46. Media access methodology in which a node wishing to transmit listens for a carrier wave before trying to send. If a carrier is sensed - the node waits for the transmission in progress to finish before initiating its own transmission.
backoff algorithm
hub
domain name system
carrier sense multiple access (CSMA)
47. 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
hierarchical addressing
runt frame
Internet service provider
48. The glass fibers inside certain cables over which light is transmitted to encode 0 and 1
metropolitan-area network
International Organization for Standardization
fiber optics
ARP poisoning
49. A protocol used between routers so that they can learn routes to add to their routing tables.
RST
router protocol
symmetric switching
dns resolver
50. Part of a company's intranet that is extended to users outside the company
download
extranet
logical network
bridge
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