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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. 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.
protocol data unit
encapsulation
resource records
flash
2. The time that passes while some event occurs. In networking - latency typically refers to the time that occurs between when something is sent in a network until it is received by another device.
Address resolution protocol
routing
latency
media-dependent interface (MDI)
3. Network protocols or technologies that do not use the acknowledgment system to guarantee reliable delivery of information
best effort
bandwidth
reserved link-local addresses
octet
4. The number of various unique digits - including 0 that a positional number system uses to represent numbers. For example - in the binary system (base 2) the radix is 2. In the decimal system the radix is 10.
radix
protocol
URG
dynamic routing
5. The portion of a binary number that carries the most weight - the one written farthest to the left. High-order bits are the 1s in the network mask.
prviate address
extranet
quality of service
high-order bit
6. 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.
hub
destination IP address
logical topology
bridge table
7. A network that incorporates both optical fiber along with coaxial cable to create a broadband network. commonly used by cable tv companies.
jam signal
hybrid fiber-coax
internetwork
fast ethernet
8. 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.
radio frequency interference
authentication
logical network
deterministic
9. An IP address that has been registered with IANA or one of its member agencies - which guarantees that the address is globally unique. Globally unique public IP addresses can be used for packets sent through the Internet.
daemon
synchronous
public address
bit time
10. 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
default gateway
hypertext transfer protocol
globally scoped addresses
11. A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type.
octet
priority queing
authoritative
media-dependent interface crossover
12. 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
media-dependent interface (MDI)
prefix length
window size
13. An application level network protocl mainly applied to shared access to files - printers - serial ports - and miscellaneous communications between nodes on a network.
Thicknet
bit time
maximum transmission unit
server message block
14. An international - nonprofit organization for the advancement of technology related to eletricity. IEEE maintains the standards defining many LAN protocols.
round-trip time
Institute of Electrical and Electronics Engineers
local area network
digital logic
15. 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
global configuration mod
link-local address
asynchronous
Institute of Electrical and Electronics Engineers
16. An IPv4 multicast address that is restricted to a local group or organization
administratively scoped address
extended star
redundancy
TCP/IP
17. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.
server message block
segment
cache
selective forwarding
18. A series of documents and memoranda encompassing new research - innovations and methodologies applicable to Internet technologies. RFCs are a reference for how technologies should work.
domain name system
Requests for Comments
Institute of Electrical and Electronics Engineers
MAC table
19. 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
ARP poisoning
overhead
directed broadcast
syntax
20. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.
multicast group
SYN
media-dependent interface crossover
console port
21. Communication where the sender and receiver must prearrange for communications to occur; otherwise - the communication fails.
fragmentation
connection oriented
query
proxy arp
22. 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.
link-local address
ARP table
prviate address
decapsulation
23. A device that connects multiple network segments at the data link layer of the OSI model. Bridges were the predecessor to LAN switches.
media access control
bridge
ethernet PHY
low-order bit
24. The physical interface transceivers. It deals with Layer 1 (the physical layer - hence the PHY) of ethernet.
binary
ethernet PHY
extranet
firewall
25. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
intranet
domain name system
URG
runt frame
26. 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
destination IP address
fiber-optic cable
fragmentation
prviate address
27. 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.
metropolitan-area network
token passing
switch
slash format
28. A method of computer processing in which different parts of a program run simultaneously on two or more computers that are communicating with each other over a network
priority queing
window size
nonvolatile RAM (NVRAM)
distributed
29. The layer 3 address to which the data is going.
scheme
destination IP address
router
virtual local area network
30. The bit position in a binary number having the greatest value. The most significant bit is sometime referred to as the leftmost bit.
Institute of Electrical and Electronics Engineers
keyword
bridge
most significant bit
31. The connection of devices on a common media. Sometimes a physical network is also referred to as a network segment.
radix
slash format
physical network
TCP/IP
32. In networking - a measurement of the speed of bits that can be transmitted over a particular link. It is the amount of data that can be transmitted in a certain amount of time. For digital bandwidth it is usually expressed in bits per second.
Internet Engineering Task Force
tracert
bandwidth
IP address
33. When used generically - this term refers to end-user data along with networking headers and trailers that are transmitted through a network. When used specifically - it is end-user data - along with the network or Internet layer headers and any highe
octet
packet
download
argument
34. The IPv4 address block 192.0.2.0 to 192.0.2.255 that is set aside for teaching and learning purposes. These addresses can be used in documentation and network examples.
globally scoped addresses
redundancy
hybrid fiber-coax
test-net address
35. A protocol used to dynamically assign IP configurations to hosts. The services defined by the protocol are used to request and assign an IP address - default gateway - and DNS server address to a network host.
dynamic host configuration protocol
client
single point of failure
acknowledgment number
36. The design on networks that can continue to operate without interruption in the case of hardware - software or communications failures.
fault tolerance
quality of service
noise
single point of failure
37. 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.
user executive mode
filtering
manchester encoding
locally administered address
38. 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
forwarding
shielded twisted pair cable
virtual local area network
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.
segmentation
physical topology
multicast client
host address
40. The actual data transfer rate between two computers at some point in time. Throughput is impacted by the slowest-speed link used to send data between the two computers - as well as myriad variables that might change during the course of a day.
logical topology
ping sweep
priority queing
throuhpu
41. 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.
session
carrier
hub
nslookup
42. A layer 4 protocl of TCP/IP model - TCP lets applications guarantee delivery of data across a network.
fast ethernet
TCP
channel service unit/data service unit
subnet mask
43. 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.
fiber-optic cable
classless addressing
metropolitan-area network
Network time protocol
44. A notification sent from one network device to another to confirm that some event has occured.
acknowledgment
intermediary device
physical address
convergence
45. A logical connection between devices in which the frames are passed between the devices. Virtual circuits are independent of the physical structure and may be established through multiple physical devices.
logical topology
virtual circuit
fiber optics
bridging
46. The standards body responsible for the development and approval of TCP/IP standards
code gropu
Pad
ping sweep
Internet Engineering Task Force
47. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.
bandwidth
gigabit ethernet
media independent
RST
48. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5
cyclic redundancy check
thinnet
octet
tracert
49. A map of the devices on a network representing how the devices communcate with each other.
selective forwarding
flash
logical topology
cyclic redundancy check
50. A signal on a medium used to support the transmission of data. Data is carried over the medium by modulation.
connectionless
dispersion
nslookup
carrier
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