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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 generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
media-dependent interface (MDI)
host
local area network
protocol data unit
2. A network of computers that behave as if they are connected to the same network segment - even through they might be physically located on different segments of a LAN. VLANs are configured through software on the switch and router.
bandwidth
forwarding
virtual local area network
throuhpu
3. An IPv4 address in the range of 169.254.1.0 to 169.254.254.255. Communication using these addresses is used with a ttl of 1 and limited to the local network
RJ-45
link-local address
low-order bit
physical address
4. 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.
port
media-dependent interface crossover
virtual circuit
full duplex
5. A broadcast that is sent to a specific network or series of networks.
network
media-dependent interface crossover
limited broadcast
encryption
6. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.
directed broadcast
burned in address
thinnet
firewall
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.
signal
deterministic
goodput
prviate address
8. A network that is connected to a device's interface. For example networks that interface with the router are known to be directly connected. Devices learn their initial IP routes based on being connected to these subnets.
International Organization for Standardization
directly connected network
source
AND
9. In TCP - the process of taking a large chunk of data and breaking it into small enough pieces to fit within a TCP segment without breaking any rules about the maximum amount of data allowed in a segment.
segmentation
network segment
Open systems interconnection
pinout
10. 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
noise
Optical time domain reflectometer
metropolitan-area network
default gateway
11. Communication that only allows one station to receive while the other station is transmitting
bit
half duplex
hierarchical addressing
network interface card
12. 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.
jam signal
firewall
signal
prefix length
13. The cabling and connectors used to interconnect the network devices.
collision
delimiter
half duplex
physical media
14. A network device that accesses a service on another computer remotely by accessing the network.
router
channel service unit/data service unit
protocol
client
15. Unique addresses that are public domain addresses.
low-order bit
dns resolver
pinout
globally scoped addresses
16. A map of the devices on a network representing how the devices communcate with each other.
logical topology
router
layered model
single point of failure
17. Part of a company's intranet that is extended to users outside the company
loopback
extranet
host group
prviate address
18. 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.
address pool
acknowledgment
quality of service
token passing
19. 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.
channel service unit/data service unit
ping sweep
shielded twisted pair cable
radix
20. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.
RST
TCP/IP
subnet mask
keyword
21. 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.
intranet
fault tolerance
scope
decapsulation
22. Line code in which 1s are represented by one significant condition and 0s are represented by another.
loopback
nonreturn to zero
limited broadcast
Network time protocol
23. A service or a program to look up information in the DNS
frame
router protocol
nslookup
cache
24. The ability of a protocol. system or component to be modified to fit a new need.
scalability
carrier sense multiple access (CSMA)
logical topology
radio frequency interference
25. 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
encapsulation
proxy arp
source
connectionless
26. 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
Internet Engineering Task Force
carrier
address pool
hierarchical addressing
27. The minimum time a NIC or interface can take to send an entire frame. Slot time - then - implies a minimum frame size.
slot time
acknowledgment number
multicast client
decapsulation
28. Routing that adjusts automatically to network topology or traffic changes.
router
dynamic routing
distributed
attenuation
29. A special reserved IPv4 address - 127.0.0.1 that can be used to test TCP/IP applications. Packets sent to 127.0.0.1 by a computer never leave the computer or even require working NIC. Instead - the packet is processed by IP at the lowest layer and is
channel
classful addressing
syntax
loopback
30. 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
protocol suite
end device
ARP table
switch
31. 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.
static route
window size
classless addressing
instant messaging
32. A notification sent from one network device to another to confirm that some event has occured.
multicast client
acknowledgment
store and forward
bridge table
33. A term that describes IPv4 packets sent to all hosts in a particular network. In a directed broadcast - a single copy of the packet is routed to the specified network - where it is broadcast to all hosts on that network
keyword
bridge table
positional notation
directed broadcast
34. An IP address that has been registered with IANA or one of its member agencies - which guarantees that the address is globally unique. Globally unique public IP addresses can be used for packets sent through the Internet.
transparent bridging
media-dependent interface (MDI)
multiplexing
public address
35. Program used to download and send email. Email clients use POP3 to receive emails and use SMTP to send emails. Also called an email client
TCP
peer
round-trip time
Mail user agent
36. The layer 3 address to which the data is going.
destination IP address
IP address
intranet
collaborative
37. Resources used to manage or operate the network. Overhead consumes bandwidth and reduces the amount of application data that can be transported across the network.
overhead
public address
default route
hypertext transfer protocol
38. A part of a computer network that every device communicates with using the same physical medium. Network segments are extended by hubs or repeaters.
collision domain
selective forwarding
network segment
window size
39. 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.
reserved link-local addresses
4b/5b
ARP table
Thicknet
40. A logical storage in the host's RAM to store ARP entries
intermediary device
locally administered address
IP header
ARP cache
41. 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.
directly connected network
IP
delimiter
virtual circuit
42. The layer 2 pdu that has been encoded by a data link layer protocol for digital transmission. Some different kinds of frames are ethernet frames and PPP frames.
standards
round-trip time
frame
maximum transmission unit
43. A dotted decimal number defined by the IPv4 protocol to represent a network or subnet. It represents the network that hosts reside in. Also called a network number or network ID.
multicast client
network address
segmentation
physical address
44. 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.
protocol
dns resolver
keyword
MAC table
45. A related set of communications transactions between two or more network devices.
session
Interpret as command
RJ-45
connectionless
46. 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
positional notation
media-dependent interface (MDI)
host address
bit time
47. 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.
proxy arp
Thicknet
global configuration mod
encapsulation
48. 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
bridge table
Mail user agent
classless addressing
argument
49. Also known as boolean algebra. These consist of the AND OR and IF operations
digital logic
FIN
host group
most significant bit
50. To change the energy levels transmitted over some networking medium to transmit bits over that medium.
broadcast
most significant bit
routing table
encode