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Test your basic knowledge |
CCNA Network Fundamentals Vocab
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Subjects
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cisco
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it-skills
,
ccna
Instructions:
Answer 50 questions in 15 minutes.
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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. Network protocols or technologies that do not use the acknowledgment system to guarantee reliable delivery of information
subnet mask
jam signal
round-trip time
best effort
2. In networking - a symbol used when drawing network diagrams that represent a part of the network whose details can be ignored for the purposes of the diagram.
protocol data unit
cloud
logical topology
media access control
3. 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
proxy arp
bit
acknowledgment number
IP address
4. 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
ethernet PHY
channel
routing
extended star
5. A signal on a medium used to support the transmission of data. Data is carried over the medium by modulation.
globally scoped addresses
reserved link-local addresses
carrier
Open systems interconnection
6. The reference to text based logical interfaces on an ios device. These are accesses using telnet or ssh to perform administrative tasks. VTY lines are also called virtual type terminal.
frame
virtual terminal line
node
network address
7. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
radio frequency interference
Organizational Unique Identifier
bridge table
URG
8. The physical interface transceivers. It deals with Layer 1 (the physical layer - hence the PHY) of ethernet.
IP address
globally scoped addresses
ethernet PHY
selective forwarding
9. The spreading of light signal caused by light signals traveling at different speeds through a fiber.
download
dispersion
single point of failure
prefix length
10. Refers to whether the performance of a device - attached to a particular type of LAN - can be accurately predicted. Token Ring LANS are deterministic - but ethernet LANS are non deterministic.
layered model
deterministic
user executive mode
PSH
11. An internet wide system by which a hierarchical set of DNS servers collectively hold all the name IP address mappings - with DNS servers referring users to the correct DNS server to successfully resolve a DNS name.
destination IP address
domain name system
bridging
transparent bridging
12. 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.
scheme
positional notation
segmentation
asynchronous
13. To change the energy levels transmitted over some networking medium to transmit bits over that medium.
client
domain name system
encode
source
14. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability
query
Packet Tracer
protocol
Open systems interconnection
15. The process of forwarding frames in a switch or a bridge from one port to another port or from segment to segment
Mail user agent
RJ-45
SYN
bridging
16. Random-access memory that does not lose its contents when the computer is shut down
goodput
nonvolatile RAM (NVRAM)
carrier sense multiple access (CSMA)
broadcast
17. 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.
distributed
dotted decimal
Internet Assigned Numbers Authority
default route
18. A part of the ethernet frame that fills in the data field to ensure that the data field meets the minimum size requirement of 46 bytes.
default gateway
segmentation
Pad
download
19. IPv4 address of a network host. When talking about host addresses - they are the network layer addresses.
media-dependent interface crossover
dynamic or private ports
host address
flow control
20. A plan - design or program of action to be followed. Sometimes an addressing plan is called an addressing SCHEME.
classful addressing
scheme
slot time
gateway
21. 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
default gateway
goodput
directed broadcast
Regional Internet Registries
22. 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
protocol
convergence
directed broadcast
dynamic host configuration protocol
23. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.
token passing
static route
Internet
metropolitan-area network
24. 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.
IP header
routing table
global configuration mod
fiber-optic cable
25. 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.
source IP address
URG
switch table
encapsulation
26. 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
fiber-optic cable
protocol suite
ACK
virtual local area network
27. In ethernet - the results of two nodes transmitting simlutaneously. The signals from each device are damaged when they combine on the media
interframe spacing
collision
ethernet PHY
network baseline
28. 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.
keyword
authoritative
flash
hub
29. 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.
Network address translation (NAT)
console port
decapsulation
bridge table
30. A 1-bt flag in the TCP header used to indicate the initial value of the sequence number. The SYN flag is only set in the first two segments of the three-way TCP connection establishment sequence.
SYN
pinout
jam signal
prviate address
31. A part of a computer network that every device communicates with using the same physical medium. Network segments are extended by hubs or repeaters.
frame
limited scope address
network segment
post office protocol
32. Unique addresses that are public domain addresses.
globally scoped addresses
syntax
frame
multicast group
33. The devices and connections of a communications network that comprise the network end of the user to network interface. The DCE provides a physical connection to the network - forwards traffic - and provides a clocking signal used to synchronize data
multicast group
physical address
data communications equipment
signal
34. The IEEE 802.2 standard that defines the upper sublayer of the Ethernet Layer 2 specifications.
digital logic
Logical link control
intermediary device
Network address translation (NAT)
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
Packet Tracer
Mail user agent
physical media
slash format
36. Routing that adjusts automatically to network topology or traffic changes.
carrier sense multiple access (CSMA)
dynamic routing
physical media
node
37. This field of a frame signals the beginning or end of a frame.
IP
jam signal
delimiter
frame
38. 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
console port
data communications equipment
International Organization for Standardization
segment
39. The minimum time a NIC or interface can take to send an entire frame. Slot time - then - implies a minimum frame size.
electromagnetic interface
node
slot time
hop
40. A numbering system characterized by 1 and 0
classless addressing
cyclic redundancy check
multicast client
binary
41. Using values between 1024 and 49 -151 these numbers are equivalent to well-known ports in concept - but they are specifically used for nonprivileged application processes.
network baseline
fragmentation
registered ports
router protocol
42. 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.
slash format
positional notation
window size
decapsulation
43. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.
kilobits per second
well known ports
attenuation
plug-in
44. A MAC address that can be configured on a device. The LAA can be used in place of the BIA . This means that you can replace a NIC or use a substitute device without changing the address used by the network to access the station.
manchester encoding
locally administered address
channel service unit/data service unit
data communications equipment
45. 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
bridge
Internet control message protocol
best effort
RST
46. 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.
logical network
query
instant messaging
routing table
47. A network device that accesses a service on another computer remotely by accessing the network.
media independent
bridge
client
administratively scoped address
48. A general type of cable - with the cable holding twisted pairs of copper wires and the cable itself having little shielding.
broadcast domain
unshieled twisted-pair
segment
authoritative
49. A network device that has an IPv4 address assigned to it to communication over a network.
physical address
AND
host
broadcast
50. 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
distributed
Internet Engineering Task Force
SYN
media-dependent interface (MDI)
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