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Test your basic knowledge |
CCNA Network Fundamentals Vocab
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Subjects
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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. 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
domain name
host address
SYN
2. 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.
ARP cache
Internet Assigned Numbers Authority
hub
connectionless
3. The management of data flow between devices in a network. It is used to avoid too much data arriving before a device can handle it - causing data overflow.
ARP table
flow control
Regional Internet Registries
resource records
4. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability
collaborative
deterministic
Open systems interconnection
router protocol
5. 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
user executive mode
download
hierarchical addressing
fault tolerance
6. 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.
protocol suite
domain name system
octet
keyword
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.
directed broadcast
metropolitan-area network
peer
protocol
8. A network model defined by the IETF that has been implemented on most computers and network device in the world.
TCP/IP
nslookup
manchester encoding
media-dependent interface (MDI)
9. The glass fibers inside certain cables over which light is transmitted to encode 0 and 1
cyclic redundancy check
fiber optics
classful addressing
intranet
10. In LAN switches a reference to cases in which a frame is forwarded - or switche - when the incoming and outgoing interfaces use the same speed. It is the opposite of asymmetric switching.
symmetric switching
carrier
classful addressing
router protocol
11. A service or a program to look up information in the DNS
nslookup
control data
low-order bit
Organizational Unique Identifier
12. A rectangular cabling connector with eight pins - often used with ethernet cables.
network baseline
RJ-45
ARP table
classful addressing
13. The design on networks that can continue to operate without interruption in the case of hardware - software or communications failures.
digital logic
cloud
dynamic host configuration protocol
fault tolerance
14. 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.
bit
daemon
IP address
best effort
15. 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
network interface card
prviate address
physical network
hop
16. In ethernet - the process performed by a bridge or switch when it decides that it should send a frame out another port.
enable password
forwarding
Address resolution protocol
flash
17. 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.
window size
store and forward
quality of service
TCP/IP
18. A convention for writing IP addresses with four decimal numbers - ranging from 0 to 255 - with each octet representing 8 bits of the 32 bit IP address. The term originates from the fact that each of the four decimal numbers is separated by a period.
server
default gateway
peer
dotted decimal
19. Application-level throughput. It is the number of useful bits per unit of time from a certain source address to a certain destination - excluding protocol overhead and excluding retransmitted data packets.
goodput
reserved link-local addresses
test-net address
switch
20. In networking - a general term referring to any energy signal on a transmission medium that is not part of the signal used to transmit data over that medium.
Pad
router
RJ-45
noise
21. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.
most significant bit
filtering
collaborative
gigabit ethernet
22. An application level network protocl mainly applied to shared access to files - printers - serial ports - and miscellaneous communications between nodes on a network.
enable password
latency
network baseline
server message block
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
maximum transmission unit
fiber-optic cable
cyclic redundancy check
pulse amplitude modulation
24. Data that directs a process. a flag in a data-link frame is an example of control data.
fragmentation
octet
control data
store and forward
25. An application protocol typically not used by end users. Instead - it is used by the network management software and networking devices to allow a network engineer to monitor and troubleshoot network problems.
smtp
host
routing
packet
26. A notification sent from one network device to another to confirm that some event has occured.
filtering
encapsulation
intermediary device
acknowledgment
27. 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.
TCP
default route
classful addressing
backoff algorithm
28. 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.
Network address translation (NAT)
distributed
Logical link control
classless addressing
29. A dotted decimal number that helps identify the structure of IP addresses. The mask represents the network and subnet parts of related IP addresses with binary 1s and the host part of related IP addresses with binary 0s
extranet
subnet mask
proxy arp
Network time protocol
30. The ability of a protocol. system or component to be modified to fit a new need.
host group
scalability
most significant bit
enable password
31. 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
high-order bit
server message block
store and forward
32. Part of a company's intranet that is extended to users outside the company
extranet
bridge table
Pad
best effort
33. Radio frequencies that creat noise that interferes with information being transmitted across unshielded copper cabling.
routing table
flow control
radio frequency interference
enable password
34. The connection of devices on a common media. Sometimes a physical network is also referred to as a network segment.
physical network
thinnet
scope
broadcast
35. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.
source IP address
firewall
peer
dispersion
36. The process of forwarding frames in a switch or a bridge from one port to another port or from segment to segment
bridging
throuhpu
protocol suite
hub
37. Path through an internetwork through which packets are forwarded.
electromagnetic interface
router
noise
Network time protocol
38. 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.
limited scope address
bridging
internetwork
fault tolerance
39. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.
segment
selective forwarding
broadcast
asynchronous
40. This field of a frame signals the beginning or end of a frame.
delimiter
radio frequency interference
fast ethernet
URG
41. A numbering system characterized by 1 and 0
pinout
backoff algorithm
binary
kilobits per second
42. 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.
layered model
Internet backbone
network segment
IP header
43. A drag-and-drop network simulator developed by Cisco to design - configure and troubleshoot network equipment within a controlled - simulated program environment.
burned in address
Packet Tracer
server message block
registered ports
44. Communication that does not use a common clock between the sender and receiver. To maintain timing - additional information is sent to synchronize the receive circuit to the incoming data. For ethernet at 10MBPS - the ethernet devices do not send ele
asynchronous
radix
selective forwarding
data termianl equipment
45. 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.
fragmentation
frame
console port
token passing
46. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5
maximum transmission unit
thinnet
symmetric switching
proxy arp
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.
node
bridge table
logical topology
binary
48. 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.
subnet mask
virtual terminal line
carrier
instant messaging
49. The physical interface transceivers. It deals with Layer 1 (the physical layer - hence the PHY) of ethernet.
resource records
ethernet PHY
Time to live
shielded twisted pair cable
50. 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.
Network time protocol
ethernet PHY
physical topology
smtp
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