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Test your basic knowledge |
CCNA Network Fundamentals Vocab
Start Test
Study First
Subjects
:
cisco
,
it-skills
,
ccna
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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. 1.collection of computers - printers - routers - switches - and other devices that can communication with each other over some transmission medium. 2. command that assgins a NIC based address to which the router is directly connected.
Internet Assigned Numbers Authority
resource records
network
network interface card
2. 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
flash
acknowledgment number
static route
ARP poisoning
3. 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.
media independent
best effort
network interface card
physical media
4. Radio frequencies that creat noise that interferes with information being transmitted across unshielded copper cabling.
tracert
broadcast
high-order bit
radio frequency interference
5. A list of router holds in memory for the purpose of deciding how to forward packets.
kilobits per second
binary
hierarchical addressing
routing table
6. 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.
network
connection oriented
logical network
limited scope address
7. 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.
bandwidth
distributed
attenuation
Internet service provider
8. 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.
classless addressing
plug-in
shielded twisted pair cable
high-order bit
9. A network model defined by the IETF that has been implemented on most computers and network device in the world.
reserved link-local addresses
TCP/IP
flow control
asynchronous
10. A protocol for synchronizing the clocks of computer systems over packet-switch data networks. NTP uses UDP port 123 as its transport layer.
user executive mode
Network time protocol
Optical time domain reflectometer
subnet
11. 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
daemon
segmentation
round-trip time
12. The glass fibers inside certain cables over which light is transmitted to encode 0 and 1
router protocol
positional notation
fiber optics
argument
13. The loss of communication signal on the media. This loss is due to degradation of the energy wave over time.
full duplex
directly connected network
bridge
attenuation
14. Data that directs a process. a flag in a data-link frame is an example of control data.
router
control data
Thicknet
goodput
15. 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.
user executive mode
carrier
encapsulation
high-order bit
16. 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
bridge
delimiter
AND
17. 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
bridge
connectionless
decapsulation
cyclic redundancy check
18. 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.
manchester encoding
dynamic host configuration protocol
default gateway
store and forward
19. A temporary storage where data that has been retrieved or calculated and is accessed frequently can be stored. After the data is stored in the cache - the processes can access the cached copy instead of accessing the original data. A cache reduces th
classless addressing
connectionless
cache
flow control
20. The standards body responsible for the development and approval of TCP/IP standards
Internet Engineering Task Force
multicast group
hypertext transfer protocol
ethernet PHY
21. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.
static route
cloud
window size
high-order bit
22. 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.
manchester encoding
router
IP
Interpret as command
23. 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
collision
slash format
synchronous
Internet control message protocol
24. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5
connection oriented
thinnet
Internet control message protocol
radio frequency interference
25. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.
flooding
firewall
prviate address
routing
26. The origin of the PDU. This can be a process a host or a node - depending on the layer to which you are reffering.
quality of service
domain name system
source
router
27. 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.
global configuration mod
Packet Tracer
internetwork
Network address translation (NAT)
28. 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.
flow control
ARP cache
host group
shielded twisted pair cable
29. 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
protocol data unit
dns resolver
physical media
maximum transmission unit
30. 1. a collision domain that is a section of a LAN that is bound by bridges - routers or switches. 2. In a LAN using a bus topology - a segment is a continuous electrical circuit that is often connected to other such segments with repeaters. 3. When us
session
Packet Tracer
broadcast address
segment
31. An international standards body that defines many networking standards. Also - the standards body that created the OSI model.
hop
nonreturn to zero
International Organization for Standardization
physical topology
32. 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
standards
International Organization for Standardization
dotted decimal
prviate address
33. An internationally recognized definition of technical specifications that ensure worldwide consistency.
standards
hybrid fiber-coax
asynchronous
flooding
34. 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.
broadcast
Internet backbone
carrier sense multiple access collision detect (CSMA/CD)
fault tolerance
35. A technique used to attack an ethernet network by sending fake ARP messages to an ethernet LAN. These frames contain false MAC addresses that confuse network devices - such as switches. As a result - frames intended for one node can be mistakenly sen
dynamic host configuration protocol
selective forwarding
ARP poisoning
peer
36. A logical network composed of all the computers and networking devices that can be reached by sending a frame to the data link layer broadcast address.
broadcast domain
nslookup
Optical time domain reflectometer
decapsulation
37. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.
collision
media-dependent interface crossover
IP address
gigabit ethernet
38. A service or a program to look up information in the DNS
address pool
radio frequency interference
nslookup
bit time
39. 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
media independent
server
subnet
International Organization for Standardization
40. 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
Network time protocol
gateway
SYN
41. 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.
network interface card
cache
intermediary device
latency
42. A removable component that has memory space for storage. Used on the router or switch for storing the compressed operating system image.
end device
collision
carrier sense multiple access (CSMA)
flash
43. 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.
positional notation
window size
channel service unit/data service unit
deterministic
44. 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.
switch table
resource records
host address
Internet service provider
45. The ability of a protocol. system or component to be modified to fit a new need.
jam signal
scalability
transparent bridging
session
46. 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.
administratively scoped address
virtual circuit
hub
protocol data unit
47. A time period between ethernet frames that allows fairness with the CSMA/CD algorithm. Without a space between frames in other words - without some time with no frames being sent a NIC might always listen for silence - never hear silence and therefor
throuhpu
server
interframe spacing
gigabit ethernet
48. 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.
Optical time domain reflectometer
network
backoff algorithm
reserved link-local addresses
49. Used by tcp or udp - with values between 0 and 1023 - these ports are allocated by high-privilege processes. They are used so that all clients know the correct port number to connect to.
well known ports
scheme
switch table
routing
50. A host or node that participates in some form of a group. For example - p2p technology defines a group of peers that participate jointly in the same activity - each one having a server and client component.
Internet control message protocol
peer
Optical time domain reflectometer
Internet service provider