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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. A 32-bit field in the tcp segment header that specifies the sequence number of the next byte this host expects to receive as a part of the TCP session. It is used to recognize lost packets and flow control
extranet
local area network
acknowledgment number
physical media
2. A group of devices associated by the arrangement of a hierarchial addressing scheme. Devices in the same logical network that share a common network portion of their Layer 3 addresses.
forwarding
logical network
routing table
extended star
3. 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
broadcast domain
4b/5b
PSH
default gateway
4. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
attenuation
hierarchical addressing
protocol data unit
ethernet PHY
5. The range of ip addresses that can be assigned by the DHCP server.
address pool
collaborative
MAC table
keyword
6. 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.
carrier sense multiple access (CSMA)
goodput
nonreturn to zero
plug-in
7. 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.
internetwork
filtering
forwarding
connectionless
8. 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
interframe spacing
daemon
network baseline
symmetric switching
9. 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.
prefix length
most significant bit
pulse amplitude modulation
hybrid fiber-coax
10. As part of the TCP/IP internet layer - ICMP defines protocol messages used to inform network engineeres of how well an internetwork is working. For example - the ping command sends ICMP messages to determine whether a host can send packets ot another
dns resolver
dotted decimal
Internet control message protocol
IP
11. A source of information that is highly reliable and known for its accuracy
nonreturn to zero
layered model
best effort
authoritative
12. The normal operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs in the hub port is in a normal configuration. Some hubs provide a media-dependent interface/media-dependent interface - crossover switch. This switch is usu
slash format
switch table
locally administered address
media-dependent interface (MDI)
13. 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.
RST
IP
dynamic host configuration protocol
link-local address
14. Part of a company's intranet that is extended to users outside the company
unshieled twisted-pair
synchronous
extranet
shielded twisted pair cable
15. A network that incorporates both optical fiber along with coaxial cable to create a broadband network. commonly used by cable tv companies.
host address
hybrid fiber-coax
best effort
collaborative
16. In ethernet - the process performed by a bridge or switch when it decides that it should not forward a frame out another port
hypertext transfer protocol
filtering
positional notation
transparent bridging
17. 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.
resource records
physical network
Internet Engineering Task Force
logical network
18. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.
synchronous
data termianl equipment
attenuation
well known ports
19. 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
locally administered address
carrier sense multiple access collision detect (CSMA/CD)
destination IP address
goodput
20. The limited CLI mode where the commands available to the user are a subset of those available at the privileged level. In general - use the user Exec commands to temporarily change terminal settings - perform basic tests and list system information.
TCP/IP
router
user executive mode
extranet
21. The method of for finding a host's hardware address from its IPv4 network layer address.
fast ethernet
console port
Address resolution protocol
Optical time domain reflectometer
22. 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
default route
switch
logical network
routing table
23. A common term for 10base5 ethernet - referring to the fact that 10base5 cabling is thicker than the coaxial cabling used for 10base2.
quality of service
extended star
virtual local area network
Thicknet
24. Communication that only allows one station to receive while the other station is transmitting
collaborative
half duplex
PSH
console port
25. A device that connects end devices to the network or interconnects different networks. A router is an example of an intermediary device.
host
TCP
dynamic or private ports
intermediary device
26. A type of hash function that is used to produce a small - fixed size checksum of a block of data - such as a packet or a computer file. A CRC is computed and appended before transmission or storage - and verified afterward by the recipient to confirm
physical topology
cyclic redundancy check
host
resource records
27. The origin of the PDU. This can be a process a host or a node - depending on the layer to which you are reffering.
globally scoped addresses
encryption
ethernet PHY
source
28. A group of IP addresses that have the same value in the first part of the IP addresses - for the purpose of allowing routing to identify the group by the inital part of the addresses. IP addresses in the same subnet typically sit on the same network
subnet
fast ethernet
administratively scoped address
control data
29. 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.
physical topology
query
thinnet
link-local address
30. In networking - this term is used in several ways. With ethernet hub and switch hardware - port is simply another name for interface - which is a physical connector in the swithc into whic a cable can be connected. With TCP and UDP - a port is a soft
port
dynamic routing
Regional Internet Registries
server message block
31. A plan - design or program of action to be followed. Sometimes an addressing plan is called an addressing SCHEME.
Interpret as command
nonvolatile RAM (NVRAM)
locally administered address
scheme
32. 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.
end device
global configuration mod
IP address
positional notation
33. 1. a collision domain that is a section of a LAN that is bound by bridges - routers or switches. 2. In a LAN using a bus topology - a segment is a continuous electrical circuit that is often connected to other such segments with repeaters. 3. When us
carrier
acknowledgment number
segment
administratively scoped address
34. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.
gigabit ethernet
logical topology
global configuration mod
association identity AID
35. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.
dispersion
hybrid fiber-coax
cyclic redundancy check
enable password
36. A logical connection between devices in which the frames are passed between the devices. Virtual circuits are independent of the physical structure and may be established through multiple physical devices.
International Organization for Standardization
cache
virtual circuit
IP header
37. A convention for writing IP addresses with four decimal numbers - ranging from 0 to 255 - with each octet representing 8 bits of the 32 bit IP address. The term originates from the fact that each of the four decimal numbers is separated by a period.
half duplex
peer
broadcast
dotted decimal
38. The cabling and connectors used to interconnect the network devices.
client
physical media
scheme
multiplexing
39. An IPv4 multicast address that is restricted to a local group or organization.
routing table
well known ports
server
limited scope address
40. In the telnet application - commands are always introduced by a character with the decimal code 255 - known as the Interpret as Command character.
encapsulation
layered model
Interpret as command
switch
41. A network model defined by the IETF that has been implemented on most computers and network device in the world.
tracert
TCP/IP
subnet mask
extended star
42. A physical or a logical area in a LAN where the signals sent by the interfaces ma be subject o being combined. Within a collision domain - if a device sends a frame on a network segment - every other device on that same segment will receive that fram
slash format
encryption
collision domain
store and forward
43. A system of network design characterized by one or more major components that are required to maintain operation.
link-local address
physical address
local area network
single point of failure
44. In ethernet - the process performed by a bridge or switch when it decides that it should send a frame out another port.
SYN
scalability
locally administered address
forwarding
45. Random-access memory that does not lose its contents when the computer is shut down
hierarchical addressing
classful addressing
broadcast
nonvolatile RAM (NVRAM)
46. Data that directs a process. a flag in a data-link frame is an example of control data.
intranet
control data
scalability
cache
47. The management of data flow between devices in a network. It is used to avoid too much data arriving before a device can handle it - causing data overflow.
flow control
token passing
frame
Regional Internet Registries
48. A host or node that participates in some form of a group. For example - p2p technology defines a group of peers that participate jointly in the same activity - each one having a server and client component.
FIN
peer
local area network
network segment
49. 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.
decapsulation
host group
host
overhead
50. The IEEE 802.2 standard that defines the upper sublayer of the Ethernet Layer 2 specifications.
resource records
physical network
Logical link control
default gateway