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Test your basic knowledge |
CCNA Network Fundamentals Vocab
Start Test
Study First
Subjects
:
cisco
,
it-skills
,
ccna
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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 glass fibers inside certain cables over which light is transmitted to encode 0 and 1
pulse amplitude modulation
convergence
fiber optics
metropolitan-area network
2. A grouping of code that meets a certain - already specified - condition for entering in that certain group.
network segment
intranet
code gropu
test-net address
3. 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
globally scoped addresses
routing
Organizational Unique Identifier
fast ethernet
4. A 1-bit flag in the TCP header that is used to request to the higher layers for immediate delivery of the packet.
network interface card
protocol data unit
PSH
console port
5. 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.
router
MAC table
control data
internetwork
6. A common name for ethernet technology that operates at 100 mbps.
fast ethernet
ethernet PHY
control data
ping sweep
7. 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.
goodput
channel
host address
noise
8. 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.
International Organization for Standardization
local area network
radix
low-order bit
9. 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
delimiter
Time to live
syntax
Requests for Comments
10. 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
network
connectionless
delimiter
11. A removable component that has memory space for storage. Used on the router or switch for storing the compressed operating system image.
flash
directly connected network
query
directed broadcast
12. A network device - typically connected to a range of LAN and WAN interfaces - that forwards packets based on their destination IP addresses.
classful addressing
router
carrier
argument
13. In LAN switches a reference to cases in which a frame is forwarded - or switche - when the incoming and outgoing interfaces use the same speed. It is the opposite of asymmetric switching.
single point of failure
symmetric switching
broadcast domain
administratively scoped address
14. An application protocol typically not used by end users. Instead - it is used by the network management software and networking devices to allow a network engineer to monitor and troubleshoot network problems.
daemon
smtp
4b/5b
radix
15. A 32-bit number - written in dotted decimal notation - used by the IP to uniquely identify an interface connected to an IP network. It is also used as a destination address in an IP header to allow routing - and as a source address to allow a compute
IP address
distributed
dynamic routing
token passing
16. The optical or electrical impulse on a physical medium for purposes of communication.
Network address translation (NAT)
collision domain
signal
TCP/IP
17. The lower of the two sublayers of the IEEE standard for ethernet. It is also the name of that sublayer
source
limited scope address
default gateway
media access control
18. Part of a company's intranet that is extended to users outside the company
default gateway
extranet
globally scoped addresses
smtp
19. A system of network design characterized by one or more major components that are required to maintain operation.
single point of failure
domain name
Open systems interconnection
virtual local area network
20. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.
carrier sense multiple access (CSMA)
source IP address
attenuation
nonvolatile RAM (NVRAM)
21. 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
dynamic host configuration protocol
filtering
locally administered address
maximum transmission unit
22. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
intermediary device
prefix length
URG
connectionless
23. Routing table entry that is used to direct frames for which a next hop is not explicitly listed in the routing table. This route is used to forward a packet when no other known route exists for a give packet's destination address.
keyword
default route
hybrid fiber-coax
Pad
24. Line code in which each bit of data is signified by at least one voltage level transition.
ping sweep
layered model
keyword
manchester encoding
25. 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.
address pool
media independent
gigabit ethernet
flash
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
Logical link control
encryption
broadcast address
overhead
27. 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
throuhpu
single point of failure
flooding
argument
28. A network topology characterized by a central location connected to multiple hubs. In an extended star - these interconnected hubs may be connected to more hubs. It is essentially a hierarchical topology but typically is drawn with the central site i
cache
throuhpu
extended star
flow control
29. 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
convergence
radio frequency interference
dns resolver
30. A device that connects end devices to the network or interconnects different networks. A router is an example of an intermediary device.
network segment
bit
intermediary device
digital logic
31. An international - nonprofit organization for the advancement of technology related to eletricity. IEEE maintains the standards defining many LAN protocols.
bit time
latency
bandwidth
Institute of Electrical and Electronics Engineers
32. Normally - a relatively general term that refers to dfifferent kinds of networking devices. Historically - when routers were created - they were called gateways
ethernet PHY
gateway
deterministic
smtp
33. 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
proxy arp
broadcast address
most significant bit
34. 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.
Internet backbone
RJ-45
segment
protocol suite
35. The passage of a data packet between two network nodes.
electromagnetic interface
source
hop
bridge table
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.
signal
window size
scope
Regional Internet Registries
37. The process of forwarding frames in a switch or a bridge from one port to another port or from segment to segment
well known ports
end device
network segment
bridging
38. 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.
noise
ARP poisoning
protocol data unit
extended star
39. The arrangement of the nodes in a network and the physical connections between them. This is the representation of how the media is used to connect the devices.
default gateway
prefix length
physical topology
acknowledgment number
40. 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.
pinout
bridge table
router
attenuation
41. 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.
dns resolver
metropolitan-area network
Organizational Unique Identifier
extranet
42. A method of computer processing in which different parts of a program run simultaneously on two or more computers that are communicating with each other over a network
AND
distributed
dotted decimal
data termianl equipment
43. 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
RST
fault tolerance
dns resolver
44. 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.
window size
layered model
Address resolution protocol
noise
45. A method of expressing a network prefix. It uses a forward slash / followed by the network prefix.
slash format
dynamic routing
broadcast address
connectionless
46. A data link layer address - for example a MAC address
physical address
reserved link-local addresses
nonvolatile RAM (NVRAM)
data communications equipment
47. Unique addresses that are public domain addresses.
data termianl equipment
carrier
well known ports
globally scoped addresses
48. The spreading of light signal caused by light signals traveling at different speeds through a fiber.
broadcast address
dispersion
source IP address
FIN
49. 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.
bridging
binary
asynchronous
backoff algorithm
50. The IPv4 address block 192.0.2.0 to 192.0.2.255 that is set aside for teaching and learning purposes. These addresses can be used in documentation and network examples.
best effort
window size
network segment
test-net address