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CCNA Network Fundamentals Vocab
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Subjects
:
cisco
,
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. 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.
digital logic
end device
shielded twisted pair cable
filtering
2. A network device - typically connected to a range of LAN and WAN interfaces - that forwards packets based on their destination IP addresses.
latency
scheme
router
filtering
3. 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
window size
enable password
media-dependent interface (MDI)
most significant bit
4. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
multiplexing
slot time
transparent bridging
protocol data unit
5. Part of a company's intranet that is extended to users outside the company
extranet
Institute of Electrical and Electronics Engineers
radix
source
6. Real-time communication between two or more people through text. The text is conveyed through computers connected over a network such as the internet. files can also be transferred through the IM program to share files.
internetwork
instant messaging
fiber optics
download
7. From the priviledged mode - you can enter the device's global caonfiguration mode. From global configuration mode - you can configure global parameters or enter other configuration submodes such as interface - router and line configuration submodes.
global configuration mod
cache
default route
slash format
8. The process of obscuring information to make it unreadable without special knowledge - somtimes referred to as scrambling. The process takes the data to be encrypted and applies a mathematical formula to it along with a secret number. The resulting v
physical address
encryption
signal
code gropu
9. The learning of source addresses on incoming frames and adding them to the bridging table. After the table has been completed and when a frame is received on one of the bridge's interfaces - the bridge looks up the frame's destination address in its
latency
jam signal
transparent bridging
Organizational Unique Identifier
10. 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
Internet backbone
FIN
multiplexing
11. A corporate system such as a website that is explicitly used by internal employees. Can be assessed internally or remotely
virtual local area network
carrier sense multiple access collision detect (CSMA/CD)
physical media
intranet
12. A group defined by a class D address (multicast - ranging from 224.0.0.0 to 239.255.255.255) - whereupon hosts can pertain to multicast groups. Hosts that have the same multicast address are part of the same host group.
host group
server
IP address
symmetric switching
13. 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.
binary
ARP poisoning
directly connected network
Internet control message protocol
14. 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.
Internet service provider
noise
router
frame
15. 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
network baseline
globally scoped addresses
console port
fiber optics
16. The retransmission delay used with CSMA/CD when a collision occurs. The algorithm forces each sender that detected the collisions to delay a random amount of time before attempting to retransmit.
daemon
backoff algorithm
ACK
channel service unit/data service unit
17. 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
user executive mode
acknowledgment number
hop
layered model
18. The networking layers whose processes are not affected by the media being used. In ethernet - these are all the layers from the LLC sublayer of data link upward.
port
media independent
Time to live
cyclic redundancy check
19. To change the energy levels transmitted over some networking medium to transmit bits over that medium.
encode
router protocol
locally administered address
dns resolver
20. Represents the 0 in the binary number. In an IP subnet mask - the lower-order bits represent the host portion. Sometimes called the host portion of bits.
gigabit ethernet
host
low-order bit
virtual circuit
21. Normally - a relatively general term that refers to dfifferent kinds of networking devices. Historically - when routers were created - they were called gateways
Organizational Unique Identifier
gateway
carrier sense multiple access collision detect (CSMA/CD)
shielded twisted pair cable
22. An ethernet frame that is less than 64 bytes in size. Runts are caused by collisions and are also know as collision fragments
Internet Assigned Numbers Authority
runt frame
control data
connection oriented
23. Communication where the sender and receiver must prearrange for communications to occur; otherwise - the communication fails.
ACK
tracert
scheme
connection oriented
24. A high-speed line or series of connections that forms a major pathway within a network. The term is often used to describe the main network connections comprising the Internet.
Internet backbone
server message block
peer
data communications equipment
25. 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
logical network
protocol data unit
connectionless
26. Network layer protocol in the TCP/IP stack offering a connectionless internetwork service. IP provides features for addressing - type-of-service specification - fragmentation and reassembly - and security.
forwarding
locally administered address
bridge table
IP
27. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.
Requests for Comments
multicast group
flooding
broadcast address
28. A common term for 10base5 ethernet - referring to the fact that 10base5 cabling is thicker than the coaxial cabling used for 10base2.
protocol data unit
Thicknet
ping sweep
directed broadcast
29. A general type of cable - with the cable holding twisted pairs of copper wires and the cable itself having little shielding.
unshieled twisted-pair
physical topology
Address resolution protocol
firewall
30. 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.
server
encapsulation
broadcast domain
proxy arp
31. 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
acknowledgment
global configuration mod
Internet control message protocol
filtering
32. Interface by magnetic signals caused by the flow of electricity. EMI can cause reduced data integrity and increased error rates on transmission channels. The physics of this process are that electrical current creates magnetic fields - which in turn
noise
latency
electromagnetic interface
symmetric switching
33. The first half of a MAC address. Manufactures must ensure that the value of the OUI has been registered with the IEEE. This value identifies the manufacturer of any Ethernet NIC or interface.
Organizational Unique Identifier
IP
hub
test-net address
34. 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
binary
authoritative
console port
default gateway
35. TCP or UDP ports that range from 49152 to 65535 and are not used by any defined server applications.
dynamic or private ports
backoff algorithm
acknowledgment number
public address
36. 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.
dispersion
half duplex
standards
token passing
37. A logical storage in a host's RAM to store arp entries.
ARP table
host group
pinout
Network address translation (NAT)
38. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.
nonreturn to zero
dispersion
bridge table
selective forwarding
39. A network created for devices located in a limited geographic area - through which the company owning the LAN has the right to run cables.
FIN
virtual circuit
local area network
protocol
40. 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.
download
cloud
transparent bridging
carrier
41. A company that helps create the Internet by providing connectivity to enterprises and individuals - as well as interconnecting to other ISPs to create connectivity to all other ISPs.
store and forward
dynamic or private ports
Pad
Internet service provider
42. 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.
fast ethernet
resource records
association identity AID
enable password
43. The client part of the DNS client server mechanism. A DNS resolver creates queries sent a across a network to a same server - interprets responses - and returns information to the requesting programs.
dns resolver
broadcast address
syntax
broadcast domain
44. 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
Internet backbone
deterministic
Network address translation (NAT)
carrier sense multiple access collision detect (CSMA/CD)
45. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.
domain name system
backoff algorithm
static route
4b/5b
46. A process used to verify the identity of a person or process
well known ports
authentication
segment
overhead
47. A part of a computer network that every device communicates with using the same physical medium. Network segments are extended by hubs or repeaters.
classless addressing
Internet control message protocol
noise
network segment
48. A rectangular cabling connector with eight pins - often used with ethernet cables.
bit time
physical media
RJ-45
scalability
49. 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
round-trip time
slash format
IP
directed broadcast
50. A signal on a medium used to support the transmission of data. Data is carried over the medium by modulation.
carrier
data termianl equipment
RJ-45
Optical time domain reflectometer
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