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Test your basic knowledge |
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. 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.
static route
encapsulation
dotted decimal
Internet backbone
2. 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.
reserved link-local addresses
subnet
virtual terminal line
logical topology
3. A physical or a logical area in a LAN where the signals sent by the interfaces ma be subject o being combined. Within a collision domain - if a device sends a frame on a network segment - every other device on that same segment will receive that fram
electromagnetic interface
collision domain
scalability
domain name system
4. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.
connectionless
acknowledgment number
layered model
firewall
5. A process used by a switch or bridge to forward broadcasts and unknown destination unicasts. The bridge/switch forwards these frames out all ports except the port on which the frame was received.
Time to live
hybrid fiber-coax
flooding
MAC table
6. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.
Organizational Unique Identifier
attenuation
RST
address pool
7. A network with a geographic size between a LAN and a WAN. Typically used by service providers to create a highspeed network in a major metropolitan area where many customers might want high speed services between large sites around a city.
intranet
metropolitan-area network
cache
frame
8. 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.
host address
IP
digital logic
ARP cache
9. An internationally recognized definition of technical specifications that ensure worldwide consistency.
ARP table
segmentation
standards
attenuation
10. The glass fibers inside certain cables over which light is transmitted to encode 0 and 1
fiber optics
RJ-45
most significant bit
radix
11. 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
dynamic host configuration protocol
keyword
hierarchical addressing
loopback
12. The arrangement of the nodes in a network and the physical connections between them. This is the representation of how the media is used to connect the devices.
dynamic routing
physical topology
ARP poisoning
host
13. A type of hash function that is used to produce a small - fixed size checksum of a block of data - such as a packet or a computer file. A CRC is computed and appended before transmission or storage - and verified afterward by the recipient to confirm
cyclic redundancy check
media-dependent interface (MDI)
forwarding
globally scoped addresses
14. 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.
half duplex
plug-in
default route
gateway
15. 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.
prefix length
prviate address
public address
source
16. The process of forwarding frames in a switch or a bridge from one port to another port or from segment to segment
noise
scheme
node
bridging
17. 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
source IP address
IP header
prviate address
unshieled twisted-pair
18. A unit of measurement of the number of times 1000 bits can be transmitted in 1 second. 1 kbps = 1000bps
collision domain
octet
association identity AID
kilobits per second
19. The header defined by the IP. Used to create IP packets by encapsulating data supplied by higher-layer protocol (such as TCP) behind an IP header.
MAC table
Packet Tracer
link-local address
IP header
20. A combination of many IP subnets and networks - as created by building a network using routers. The term internwork is used to avoid confusion with the term network - because an internetwork can include several IP networks.
cyclic redundancy check
internetwork
Logical link control
URG
21. Binary digit used in the binary numbering system. Binary digits are units of information storage and communication in computing. Each bit can be either a 0 or a 1.
ARP cache
bit
pulse amplitude modulation
single point of failure
22. 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.
hypertext transfer protocol
acknowledgment
protocol suite
low-order bit
23. A form of signal modulation where the message information is encoded in the amplitude of series of signal pulses. It transmits data by varying the aplitunes of the individual pulses. This is now obsolete and has been replaced by pulse code modulation
default route
pulse amplitude modulation
Institute of Electrical and Electronics Engineers
latency
24. Defines which wires in a cable should connect to each pin on the connectors on both ends of a cable. For example - a UTP cable used for ethernet - used for a straight-through cable pinout - connects the wire at pin 1 on one end with the pin 1 on the
Internet Engineering Task Force
carrier sense multiple access (CSMA)
pinout
broadcast domain
25. Communication that only allows one station to receive while the other station is transmitting
protocol data unit
backoff algorithm
burned in address
half duplex
26. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability
media-dependent interface crossover
subnet
gateway
Open systems interconnection
27. A unicast IP address that is considered to have three parts: a network part - a subnet part - and a host part. The term classful refers to the fact that classful network rules are first applied to the address - and then the rest of the address can be
resource records
classful addressing
store and forward
locally administered address
28. 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
Packet Tracer
Optical time domain reflectometer
FIN
physical network
29. The dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.
fragmentation
goodput
ping sweep
local area network
30. A list of router holds in memory for the purpose of deciding how to forward packets.
SYN
routing table
Time to live
encapsulation
31. 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
ACK
4b/5b
collision domain
console port
32. 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.
Regional Internet Registries
media-dependent interface crossover
decapsulation
broadcast address
33. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.
host
subnet mask
selective forwarding
collision domain
34. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.
data termianl equipment
routing table
enable password
hypertext transfer protocol
35. 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.
fragmentation
dns resolver
network
Mail user agent
36. The largest IP packet size allowed to be sent out a particular interface. Ethernet interfaces default to an MTU of 1500 because the data field of an Ethernet frame should be limited to 1500 bytes - and the IP packet sits inside the ethernet frame's d
broadcast domain
maximum transmission unit
test-net address
bit
37. A common name for ethernet technology that operates at 100 mbps.
fast ethernet
transparent bridging
classful addressing
router
38. The cabling and connectors used to interconnect the network devices.
network address
dns resolver
physical media
Internet service provider
39. 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.
data communications equipment
console port
full duplex
shielded twisted pair cable
40. A protocol that allows a computer to retrieve email from a server.
priority queing
Internet Engineering Task Force
post office protocol
half duplex
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.
Internet service provider
subnet mask
attenuation
Organizational Unique Identifier
42. 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.
local area network
bridging
quality of service
nslookup
43. The time required for some network pdu's to be sent and received - and a response PDU to be sent and received. In other words - the time between when a device sends data and when the same device receives a response.
host
server
round-trip time
network segment
44. 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.
network segment
peer
store and forward
TCP
45. A removable component that has memory space for storage. Used on the router or switch for storing the compressed operating system image.
flooding
overhead
flash
instant messaging
46. 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.
Pad
broadcast address
nslookup
proxy arp
47. Defines the commands - headers and processes by which web server and web browsers transfer files.
enable password
Logical link control
hypertext transfer protocol
nonreturn to zero
48. Random-access memory that does not lose its contents when the computer is shut down
collaborative
bridging
nonvolatile RAM (NVRAM)
segmentation
49. A data link layer address - for example a MAC address
extended star
physical address
enable password
domain name system
50. 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.
TCP/IP
overhead
Internet Assigned Numbers Authority
network
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