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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 dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.
fragmentation
carrier sense multiple access collision detect (CSMA/CD)
broadcast domain
ping sweep
2. 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
RST
hub
proxy arp
loopback
3. In a shared media ethernet network - a signal generated by the transmitting devices that detects the collision. The jam signal continue to transmit for a specified period to ensure that all devices on the network detect the collision. The jame signal
locally administered address
jam signal
media independent
instant messaging
4. Represents the 0 in the binary number. In an IP subnet mask - the lower-order bits represent the host portion. Sometimes called the host portion of bits.
pinout
network interface card
low-order bit
burned in address
5. An internet wide system by which a hierarchical set of DNS servers collectively hold all the name IP address mappings - with DNS servers referring users to the correct DNS server to successfully resolve a DNS name.
domain name system
media independent
router protocol
channel
6. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.
local area network
server
keyword
Internet Engineering Task Force
7. Translation RFC 1918 addresses to public domain addresses. Because RFC 1918 addresses are not routerd on the Internet - hosts accessing the Internet must use public domain addresses.
FIN
ARP poisoning
Network address translation (NAT)
virtual circuit
8. 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
argument
scheme
classless addressing
administratively scoped address
9. 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.
filtering
scheme
store and forward
Network address translation (NAT)
10. A logical storage in the host's RAM to store ARP entries
noise
ARP cache
priority queing
slash format
11. A unit of measurement of the number of times 1000 bits can be transmitted in 1 second. 1 kbps = 1000bps
physical network
metropolitan-area network
Internet backbone
kilobits per second
12. 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
switch
multicast group
router
limited scope address
13. 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.
Optical time domain reflectometer
decapsulation
global configuration mod
metropolitan-area network
14. 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
Network time protocol
routing
network interface card
router protocol
15. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.
virtual terminal line
enable password
source IP address
store and forward
16. A service or a program to look up information in the DNS
goodput
low-order bit
logical topology
nslookup
17. The design on networks that can continue to operate without interruption in the case of hardware - software or communications failures.
fault tolerance
bridge table
radio frequency interference
cache
18. Part of a company's intranet that is extended to users outside the company
console port
ARP poisoning
extranet
round-trip time
19. 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
standards
classful addressing
packet
layered model
20. 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
router
prviate address
TCP
selective forwarding
21. 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
Packet Tracer
convergence
physical media
address pool
22. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.
static route
smtp
full duplex
authentication
23. 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
protocol suite
broadcast domain
address pool
TCP
24. An ethernet frame that is less than 64 bytes in size. Runts are caused by collisions and are also know as collision fragments
address pool
positional notation
dynamic host configuration protocol
runt frame
25. The devices and connections of a communications network that comprise the network end of the user to network interface. The DCE provides a physical connection to the network - forwards traffic - and provides a clocking signal used to synchronize data
classful addressing
unshieled twisted-pair
ping sweep
data communications equipment
26. The structure and order of words in a computer language
syntax
intranet
IP header
Internet
27. A rectangular cabling connector with eight pins - often used with ethernet cables.
logical network
address pool
RJ-45
fault tolerance
28. 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
Optical time domain reflectometer
classless addressing
query
broadcast
29. Application-level throughput. It is the number of useful bits per unit of time from a certain source address to a certain destination - excluding protocol overhead and excluding retransmitted data packets.
digital logic
goodput
physical address
domain name system
30. The networking layers whose processes are not affected by the media being used. In ethernet - these are all the layers from the LLC sublayer of data link upward.
media independent
client
Internet
globally scoped addresses
31. A process where multiple digital data streams are combined into one signal.
fast ethernet
Packet Tracer
multiplexing
SYN
32. The IP address of the originating host that is placed into the IP packet header.
daemon
host address
source IP address
multiplexing
33. Used by tcp or udp - with values between 0 and 1023 - these ports are allocated by high-privilege processes. They are used so that all clients know the correct port number to connect to.
plug-in
ARP cache
attenuation
well known ports
34. The standards body responsible for the development and approval of TCP/IP standards
Pad
plug-in
node
Internet Engineering Task Force
35. The cabling and connectors used to interconnect the network devices.
physical media
router
multiplexing
daemon
36. 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.
cloud
global configuration mod
radix
PSH
37. A numbering system characterized by 1 and 0
PSH
binary
multicast client
carrier sense multiple access (CSMA)
38. A protocol that allows a computer to retrieve email from a server.
post office protocol
logical topology
limited scope address
tracert
39. 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.
metropolitan-area network
bandwidth
ARP poisoning
routing table
40. DNS data records. Their precise format is defined in RFC 1035. The most important fields in a resource record are Name - class - type and data.
code gropu
resource records
session
slot time
41. 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.
window size
instant messaging
firewall
local area network
42. 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.
physical media
cloud
node
protocol
43. 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
Internet service provider
bridge
scalability
44. 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.
ARP poisoning
round-trip time
fast ethernet
physical address
45. The spreading of light signal caused by light signals traveling at different speeds through a fiber.
dispersion
Packet Tracer
nonreturn to zero
International Organization for Standardization
46. 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
symmetric switching
bit
electromagnetic interface
source IP address
47. To change the energy levels transmitted over some networking medium to transmit bits over that medium.
switch
full duplex
console port
encode
48. The bit position in a binary number having the greatest value. The most significant bit is sometime referred to as the leftmost bit.
classless addressing
most significant bit
media-dependent interface crossover
kilobits per second
49. The range of ip addresses that can be assigned by the DHCP server.
directed broadcast
address pool
bridge
URG
50. A device that connects end devices to the network or interconnects different networks. A router is an example of an intermediary device.
default gateway
decapsulation
intermediary device
collaborative
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