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Test your basic knowledge |
CCNA Network Fundamentals Vocab
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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. Line code in which each bit of data is signified by at least one voltage level transition.
metropolitan-area network
manchester encoding
RJ-45
post office protocol
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
carrier sense multiple access collision detect (CSMA/CD)
host address
fragmentation
interframe spacing
3. A request for information. Queries are answered with replies.
query
directly connected network
internetwork
scheme
4. 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.
directly connected network
data communications equipment
runt frame
network address
5. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5
thinnet
dotted decimal
scalability
Organizational Unique Identifier
6. The IEEE 802.2 standard that defines the upper sublayer of the Ethernet Layer 2 specifications.
Logical link control
extended star
local area network
International Organization for Standardization
7. Computer hardware - typically used for LANS - that allows the computer to connect to some network cable. The NIC can then send and receive data over the cable at the direction of the computer.
resource records
decapsulation
network interface card
media independent
8. 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
URG
encryption
collision domain
9. 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
selective forwarding
segment
hub
single point of failure
10. 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
MAC table
unshieled twisted-pair
distributed
argument
11. In ethernet - the process performed by a bridge or switch when it decides that it should not forward a frame out another port
network baseline
filtering
dynamic routing
fiber optics
12. 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
TCP/IP
burned in address
Time to live
hierarchical addressing
13. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.
distributed
logical network
interframe spacing
static route
14. The ability of a protocol. system or component to be modified to fit a new need.
plug-in
MAC table
priority queing
scalability
15. The method of for finding a host's hardware address from its IPv4 network layer address.
default route
ARP cache
Address resolution protocol
convergence
16. 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.
AND
decapsulation
well known ports
radix
17. A group of 8 binary bits. It is similar to - but not the same as - a byte. One Application in computer network is to use octets to divide IPv4 addresses into four components
quality of service
bit time
attenuation
octet
18. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability
Internet Engineering Task Force
Regional Internet Registries
Open systems interconnection
bridge
19. 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
Internet service provider
network address
intranet
switch
20. A number used in the 802.11 header to specify the session between a wireless client and the access point.
global configuration mod
4b/5b
association identity AID
Network address translation (NAT)
21. 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.
cache
window size
source
jam signal
22. A network that incorporates both optical fiber along with coaxial cable to create a broadband network. commonly used by cable tv companies.
carrier sense multiple access (CSMA)
hybrid fiber-coax
IP address
carrier
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
classful addressing
protocol suite
dotted decimal
network address
24. A layer 4 protocl of TCP/IP model - TCP lets applications guarantee delivery of data across a network.
TCP
locally administered address
Mail user agent
instant messaging
25. The cabling and connectors used to interconnect the network devices.
quality of service
dynamic or private ports
bridge
physical media
26. A service or a program to look up information in the DNS
nslookup
media-dependent interface crossover
fault tolerance
local area network
27. Communication that uses a common clocking signal. In most synchronous communicatino - one of the communicating devices generates a clock signal into the circuit. Additional timing information is not required in the header.
subnet mask
virtual terminal line
runt frame
synchronous
28. 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.
console port
frame
argument
full duplex
29. 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
Regional Internet Registries
hybrid fiber-coax
protocol data unit
30. The dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.
encryption
fragmentation
frame
flow control
31. An IPv4 multicast address that is restricted to a local group or organization
administratively scoped address
nonvolatile RAM (NVRAM)
positional notation
connectionless
32. 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.
half duplex
window size
dynamic host configuration protocol
intranet
33. 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.
carrier
token passing
ethernet PHY
standards
34. Communication where the sender and receiver must prearrange for communications to occur; otherwise - the communication fails.
loopback
connection oriented
ethernet PHY
Internet control message protocol
35. The design on networks that can continue to operate without interruption in the case of hardware - software or communications failures.
router
fault tolerance
default gateway
query
36. A broadcast that is sent to a specific network or series of networks.
download
client
limited broadcast
FIN
37. A command on many computer operating systems that discovers the IP addresses - and possibly host names - of the routers used by the network when sending a packet from one computer to another.
physical media
dynamic or private ports
tracert
acknowledgment
38. A signal on a medium used to support the transmission of data. Data is carried over the medium by modulation.
download
well known ports
code gropu
carrier
39. A form of transmission where one device transmits to all devices within the network or on another network
Network address translation (NAT)
shielded twisted pair cable
broadcast
locally administered address
40. 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
hybrid fiber-coax
forwarding
Optical time domain reflectometer
symmetric switching
41. 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.
ACK
fault tolerance
radix
runt frame
42. A protocol for synchronizing the clocks of computer systems over packet-switch data networks. NTP uses UDP port 123 as its transport layer.
registered ports
Network time protocol
carrier
symmetric switching
43. 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.
synchronous
fiber-optic cable
pulse amplitude modulation
nonreturn to zero
44. 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.
cyclic redundancy check
local area network
positional notation
FIN
45. 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.
full duplex
Regional Internet Registries
router
Internet control message protocol
46. An international standards body that defines many networking standards. Also - the standards body that created the OSI model.
radix
code gropu
client
International Organization for Standardization
47. 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.
bridge table
4b/5b
Logical link control
gigabit ethernet
48. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
Address resolution protocol
AND
protocol data unit
domain name system
49. A network device that accesses a service on another computer remotely by accessing the network.
Network time protocol
data communications equipment
International Organization for Standardization
client
50. 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
Internet control message protocol
gateway
convergence
PSH