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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. In ethernet - a device that receives an electrical signal in one port - interprets the bits and regenerates a clean signal that it sends out all other ports of the hub. Typically it also supplies several ports - which are oftentimes RJ-45 jacks.
best effort
protocol
hub
interframe spacing
2. 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.
encapsulation
carrier sense multiple access collision detect (CSMA/CD)
ethernet PHY
layered model
3. An organization that assigns the numbers important to the proper operation of the TCP/IP protocol and the Internet - including assigning globally unique IP addresses.
dispersion
acknowledgment
Internet Assigned Numbers Authority
extended star
4. 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
segment
convergence
encryption
user executive mode
5. An ethernet frame that is less than 64 bytes in size. Runts are caused by collisions and are also know as collision fragments
media access control
domain name system
Internet Engineering Task Force
runt frame
6. In ethernet - the results of two nodes transmitting simlutaneously. The signals from each device are damaged when they combine on the media
user executive mode
collision
Open systems interconnection
forwarding
7. A rectangular cabling connector with eight pins - often used with ethernet cables.
RJ-45
port
query
network segment
8. A common name for ethernet technology that operates at 100 mbps.
logical topology
4b/5b
cloud
fast ethernet
9. In ethernet - the process performed by a bridge or switch when it decides that it should not forward a frame out another port
filtering
ping sweep
source
collision domain
10. 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.
server
nslookup
packet
network interface card
11. A system of network design characterized by one or more major components that are required to maintain operation.
Internet Assigned Numbers Authority
locally administered address
single point of failure
network address
12. 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.
collision
Thicknet
default route
reserved link-local addresses
13. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.
limited broadcast
Organizational Unique Identifier
gigabit ethernet
intermediary device
14. 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
bridging
enable password
syntax
link-local address
15. A grouping of code that meets a certain - already specified - condition for entering in that certain group.
multicast client
code gropu
dynamic or private ports
selective forwarding
16. Data that directs a process. a flag in a data-link frame is an example of control data.
control data
physical network
smtp
cache
17. 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
routing table
interframe spacing
collision domain
source
18. 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.
classless addressing
protocol
SYN
default route
19. Normally - a relatively general term that refers to dfifferent kinds of networking devices. Historically - when routers were created - they were called gateways
gateway
gigabit ethernet
URG
smtp
20. 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
control data
fiber-optic cable
half duplex
21. 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
authentication
jam signal
firewall
daemon
22. A port on cisco devices to which a terminal or computer with a terminal emulator is connected to the network device in order to communicate and configure the network device
deterministic
console port
RST
destination IP address
23. MDIX is an alternative operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs used in the hub port is in a crossover configuration. This allows you to use a straight-through cable to interconnect the hub to another hub.
media-dependent interface crossover
default gateway
network address
dynamic host configuration protocol
24. A layer 4 protocl of TCP/IP model - TCP lets applications guarantee delivery of data across a network.
TCP
Internet Assigned Numbers Authority
host
dynamic routing
25. 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
binary
extended star
hub
flooding
26. A common term for 10base5 ethernet - referring to the fact that 10base5 cabling is thicker than the coaxial cabling used for 10base2.
Thicknet
administratively scoped address
router
scope
27. A protocol that allows a computer to retrieve email from a server.
console port
best effort
SYN
post office protocol
28. A device that connects multiple network segments at the data link layer of the OSI model. Bridges were the predecessor to LAN switches.
loopback
burned in address
bridge
network baseline
29. 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
firewall
hierarchical addressing
low-order bit
bandwidth
30. A communication path over a medium used to transport information from a sender to a receiver. Multiple channels can be multiplexed over a single cable
Logical link control
IP header
selective forwarding
channel
31. 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
tracert
low-order bit
token passing
Time to live
32. A part of a computer network that every device communicates with using the same physical medium. Network segments are extended by hubs or repeaters.
default route
bit time
network segment
jam signal
33. The cabling and connectors used to interconnect the network devices.
hierarchical addressing
IP address
address pool
physical media
34. The IEEE 802.2 standard that defines the upper sublayer of the Ethernet Layer 2 specifications.
interframe spacing
acknowledgment number
Logical link control
code gropu
35. 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.
router
Network address translation (NAT)
server
encryption
36. 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
selective forwarding
Logical link control
test-net address
classless addressing
37. Defines the commands - headers and processes by which web server and web browsers transfer files.
scalability
subnet
media-dependent interface (MDI)
hypertext transfer protocol
38. The ability of a protocol. system or component to be modified to fit a new need.
acknowledgment
scalability
source IP address
directed broadcast
39. 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.
single point of failure
asynchronous
carrier sense multiple access collision detect (CSMA/CD)
segmentation
40. TCP or UDP ports that range from 49152 to 65535 and are not used by any defined server applications.
switch
RST
International Organization for Standardization
dynamic or private ports
41. 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
static route
logical topology
fast ethernet
prviate address
42. 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.
RST
collision
firewall
synchronous
43. 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
authentication
enable password
media-dependent interface (MDI)
dynamic or private ports
44. 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.
broadcast domain
prefix length
code gropu
round-trip time
45. 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
loopback
low-order bit
bridging
extended star
46. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.
Pad
channel
logical topology
keyword
47. Line code in which each bit of data is signified by at least one voltage level transition.
extended star
MAC table
link-local address
manchester encoding
48. The extent of a certain item. For example - an address scope is also known as a range of addresses from beginning of the range to the end.
decapsulation
scope
logical topology
octet
49. 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
registered ports
subnet
IP address
authentication
50. 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
FIN
domain name system
Mail user agent
synchronous