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Test your basic knowledge |
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. The client part of the DNS client server mechanism. A DNS resolver creates queries sent a across a network to a same server - interprets responses - and returns information to the requesting programs.
goodput
local area network
resource records
dns resolver
2. 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
dns resolver
carrier sense multiple access collision detect (CSMA/CD)
URG
console port
3. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
round-trip time
URG
bridge table
query
4. In ethernet - the results of two nodes transmitting simlutaneously. The signals from each device are damaged when they combine on the media
gigabit ethernet
token passing
full duplex
collision
5. The minimum time a NIC or interface can take to send an entire frame. Slot time - then - implies a minimum frame size.
local area network
multicast client
slot time
registered ports
6. To change the energy levels transmitted over some networking medium to transmit bits over that medium.
cache
hub
encode
directly connected network
7. 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
client
backoff algorithm
ARP poisoning
proxy arp
8. An organization that assigns the numbers important to the proper operation of the TCP/IP protocol and the Internet - including assigning globally unique IP addresses.
Internet Assigned Numbers Authority
logical topology
globally scoped addresses
multicast group
9. The number of various unique digits - including 0 that a positional number system uses to represent numbers. For example - in the binary system (base 2) the radix is 2. In the decimal system the radix is 10.
signal
fault tolerance
slash format
radix
10. An IPv4 multicast address that is restricted to a local group or organization
administratively scoped address
session
round-trip time
ARP table
11. 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.
ARP table
International Organization for Standardization
SYN
router protocol
12. The spreading of light signal caused by light signals traveling at different speeds through a fiber.
dispersion
network baseline
burned in address
maximum transmission unit
13. 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.
network segment
host address
Logical link control
internetwork
14. A method of internal processing by LAN switches. The switch must receive the entire frame before it sends the first bit of the frame. Store and forward switch is the method used by cisco switches.
store and forward
burned in address
full duplex
limited scope address
15. 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
collaborative
burned in address
nonreturn to zero
default gateway
16. 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
switch
metropolitan-area network
broadcast domain
17. 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
bridge
switch
network address
subnet
18. TCP or UDP ports that range from 49152 to 65535 and are not used by any defined server applications.
registered ports
authentication
dynamic or private ports
channel
19. A plan - design or program of action to be followed. Sometimes an addressing plan is called an addressing SCHEME.
scheme
ARP cache
high-order bit
positional notation
20. 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.
fast ethernet
throuhpu
transparent bridging
frame
21. Network layer protocol in the TCP/IP stack offering a connectionless internetwork service. IP provides features for addressing - type-of-service specification - fragmentation and reassembly - and security.
connectionless
Network time protocol
IP
physical topology
22. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.
port
control data
attenuation
virtual terminal line
23. A process by which an end device - after it receives data over some transmission medium - examines the headers and trailers at each successive higher layer - eventually handing the data to the correct application. Sometimes called de-encapsulation.
flow control
Time to live
classful addressing
decapsulation
24. A device that connects to a local digital telephone loop for a WAN circuit to a serial interface on a network device - typically connecting to a router. The CSU/DSU performs physical Layer 1 signaling on WAN circuits
multiplexing
protocol data unit
channel service unit/data service unit
AND
25. 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
hierarchical addressing
MAC table
media independent
peer
26. 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
resource records
manchester encoding
local area network
encryption
27. Also known as boolean algebra. These consist of the AND OR and IF operations
cloud
fragmentation
standards
digital logic
28. Random-access memory that does not lose its contents when the computer is shut down
dns resolver
broadcast
nonvolatile RAM (NVRAM)
bridge
29. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.
Optical time domain reflectometer
server
Requests for Comments
selective forwarding
30. 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.
full duplex
interframe spacing
multiplexing
fiber-optic cable
31. A notification sent from one network device to another to confirm that some event has occured.
acknowledgment
media independent
Time to live
AND
32. 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.
Internet Assigned Numbers Authority
shielded twisted pair cable
virtual terminal line
overhead
33. 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.
proxy arp
reserved link-local addresses
Thicknet
bridge table
34. Any communication in which the sender and receiver do not prearrange for communications to occur
flash
flooding
connectionless
Internet
35. In ethernet - the process performed by a bridge or switch when it decides that it should not forward a frame out another port
client
filtering
console port
router protocol
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.
network segment
signal
TCP/IP
round-trip time
37. 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.
control data
server
TCP/IP
token passing
38. The origin of the PDU. This can be a process a host or a node - depending on the layer to which you are reffering.
source
ARP table
bit
reserved link-local addresses
39. 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
quality of service
full duplex
layered model
40. A number used in the 802.11 header to specify the session between a wireless client and the access point.
most significant bit
dispersion
port
association identity AID
41. An international standards body that defines many networking standards. Also - the standards body that created the OSI model.
International Organization for Standardization
instant messaging
manchester encoding
dns resolver
42. 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.
store and forward
dynamic host configuration protocol
media independent
console port
43. A popular certification method for fiber systems. The OTDR injects light into the fiber and then graphically displays the results of the detected reflected light. The OTDR measures the elapsed transit time of reflected light to calculate the distance
query
Optical time domain reflectometer
full duplex
Thicknet
44. The connection of devices on a common media. Sometimes a physical network is also referred to as a network segment.
switch
physical network
fiber optics
proxy arp
45. Another form of the root word converge in the phrase converged network. This kind of network aggregates various forms of traffic such as voice - video and data on the same network infrastructure. A more common usage represents the process by which ro
prviate address
convergence
hierarchical addressing
cloud
46. 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
media-dependent interface crossover
digital logic
hop
classless addressing
47. The method of for finding a host's hardware address from its IPv4 network layer address.
Address resolution protocol
broadcast address
TCP
flooding
48. 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.
loopback
Pad
carrier sense multiple access (CSMA)
console port
49. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.
ping sweep
default route
firewall
digital logic
50. An international - nonprofit organization for the advancement of technology related to eletricity. IEEE maintains the standards defining many LAN protocols.
unshieled twisted-pair
shielded twisted pair cable
Internet control message protocol
Institute of Electrical and Electronics Engineers
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