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Test your basic knowledge |
CCNA Network Fundamentals Vocab
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Subjects
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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. 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
throuhpu
switch
pulse amplitude modulation
gigabit ethernet
2. A network device - typically connected to a range of LAN and WAN interfaces - that forwards packets based on their destination IP addresses.
syntax
radix
internetwork
router
3. 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
hybrid fiber-coax
asynchronous
extranet
scope
4. 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 This is now obsolete and has been replaced by pulse code modulation
Network time protocol
full duplex
filtering
pulse amplitude modulation
5. 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
bridging
bit time
authentication
ARP poisoning
6. Line code in which 1s are represented by one significant condition and 0s are represented by another.
nonreturn to zero
quality of service
IP header
logical topology
7. In ethernet - the process performed by a bridge or switch when it decides that it should send a frame out another port.
resource records
forwarding
physical address
daemon
8. 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.
goodput
segment
authentication
burned in address
9. The optical or electrical impulse on a physical medium for purposes of communication.
scalability
broadcast domain
signal
noise
10. The table used by a switch that associates MAC addresses with the outgoing port. A general term for the table that a LAN bridge uses for its forwarding/filtering decisions. The table holds a list of MAC addresses and the port out which the bridge sho
connection oriented
kilobits per second
switch table
administratively scoped address
11. 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.
segmentation
limited scope address
jam signal
full duplex
12. 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.
Pad
protocol data unit
firewall
acknowledgment
13. 1.collection of computers - printers - routers - switches - and other devices that can communication with each other over some transmission medium. 2. command that assgins a NIC based address to which the router is directly connected.
frame
broadcast
switch table
network
14. Communication that uses a common clocking signal. In most synchronous communicatino - one of the communicating devices generates a clock signal into the circuit. Additional timing information is not required in the header.
authentication
PSH
synchronous
fiber-optic cable
15. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
local area network
URG
broadcast
hybrid fiber-coax
16. 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.
server message block
delimiter
quality of service
window size
17. A logical storage in the host's RAM to store ARP entries
ARP table
ARP cache
static route
Internet Assigned Numbers Authority
18. A numbering system characterized by 1 and 0
binary
association identity AID
gateway
signal
19. An IPv4 multicast address that is restricted to a local group or organization
pinout
association identity AID
Regional Internet Registries
administratively scoped address
20. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.
virtual local area network
keyword
PSH
signal
21. The method of for finding a host's hardware address from its IPv4 network layer address.
Address resolution protocol
high-order bit
scope
registered ports
22. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.
channel
electromagnetic interface
attenuation
latency
23. The retransmission delay used with CSMA/CD when a collision occurs. The algorithm forces each sender that detected the collisions to delay a random amount of time before attempting to retransmit.
RJ-45
backoff algorithm
flow control
switch
24. An encoding scheme 4B/5B uses 5-bit symbols and codes to represent 4 bits of data. 4B/5B is used in 100Base-tx ethernet.
4b/5b
loopback
dynamic host configuration protocol
network interface card
25. A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type.
SYN
pinout
attenuation
priority queing
26. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.
redundancy
cyclic redundancy check
domain name system
enable password
27. 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.
authentication
nslookup
encapsulation
proxy arp
28. Communication where the sender and receiver must prearrange for communications to occur; otherwise - the communication fails.
goodput
overhead
bit time
connection oriented
29. 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.
selective forwarding
octet
carrier sense multiple access (CSMA)
delimiter
30. Refers to whether the performance of a device - attached to a particular type of LAN - can be accurately predicted. Token Ring LANS are deterministic - but ethernet LANS are non deterministic.
ARP table
global configuration mod
destination IP address
deterministic
31. A process used by a switch or bridge to forward broadcasts and unknown destination unicasts. The bridge/switch forwards these frames out all ports except the port on which the frame was received.
flooding
dynamic or private ports
link-local address
fault tolerance
32. A collection of data that establishes a reference for network performance and behavior over a period of time. This reference data is used in the future to assess the health and relative growth of network utilization.
multicast client
physical media
flooding
network baseline
33. The connection of devices on a common media. Sometimes a physical network is also referred to as a network segment.
destination IP address
tracert
console port
physical network
34. 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.
Internet
global configuration mod
cloud
protocol
35. A device that connects multiple network segments at the data link layer of the OSI model. Bridges were the predecessor to LAN switches.
deterministic
dispersion
bridge
media independent
36. A logical network composed of all the computers and networking devices that can be reached by sending a frame to the data link layer broadcast address.
broadcast domain
hybrid fiber-coax
segmentation
classful addressing
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.
AND
signal
administratively scoped address
tracert
38. 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
media access control
scheme
authoritative
electromagnetic interface
39. An IPv4 multicast address that is restricted to a local group or organization.
limited scope address
Time to live
multicast group
logical topology
40. Somtimes called place-value notation - this is a numeral system in which each position is related to the next by a constant multiplier - a common ration - called the base or radix of that numeral system.
delimiter
transparent bridging
segment
positional notation
41. Normally - a relatively general term that refers to dfifferent kinds of networking devices. Historically - when routers were created - they were called gateways
gateway
hierarchical addressing
TCP/IP
gigabit ethernet
42. A plan - design or program of action to be followed. Sometimes an addressing plan is called an addressing SCHEME.
pinout
latency
Internet
scheme
43. One of the three basic binary logic operations. ANDing yields the following result: 1 and 1 = 1 - 1 and 0 = 0 - 0 and 1 = 0
unshieled twisted-pair
AND
connection oriented
goodput
44. Unique addresses that are public domain addresses.
globally scoped addresses
gateway
asynchronous
node
45. A time period between ethernet frames that allows fairness with the CSMA/CD algorithm. Without a space between frames in other words - without some time with no frames being sent a NIC might always listen for silence - never hear silence and therefor
fast ethernet
dispersion
interframe spacing
channel
46. TCP or UDP ports that range from 49152 to 65535 and are not used by any defined server applications.
dynamic or private ports
pulse amplitude modulation
physical topology
prviate address
47. The network that combines enterprise networks - individual users - and ISPs into a single global IP network.
link-local address
hypertext transfer protocol
Internet
cyclic redundancy check
48. The lower of the two sublayers of the IEEE standard for ethernet. It is also the name of that sublayer
media access control
connectionless
link-local address
query
49. The process by which a router receives an incoming frame - discards the ata link header and trailer - makes a forwarding decision based on the destination IP address - adds a new data-link header and trailer based on the outgoing interface and forwar
Internet control message protocol
Address resolution protocol
routing
nslookup
50. 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
Open systems interconnection
routing table
asynchronous
pinout
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