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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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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. The MAC address that is permanently assigned to a LAN interface or NIC. It is called burned-in because the address is burned into a chip on the card - and the address cannot be changed. Also called universally administered address.
hub
burned in address
multicast client
gigabit ethernet
2. A layer 4 protocl of TCP/IP model - TCP lets applications guarantee delivery of data across a network.
Time to live
TCP
International Organization for Standardization
pulse amplitude modulation
3. The minimum time a NIC or interface can take to send an entire frame. Slot time - then - implies a minimum frame size.
Open systems interconnection
network baseline
slot time
Network address translation (NAT)
4. Unique addresses that are public domain addresses.
data termianl equipment
globally scoped addresses
routing
store and forward
5. A related set of communications transactions between two or more network devices.
code gropu
directed broadcast
session
convergence
6. Can refer to computer hardware that is to be used by multiple concurrent users. Alternatively - this term can refer to computer software that provides services to many users. For example - a web server consists of web server software running on some
Requests for Comments
extended star
server
directly connected network
7. A communication path over a medium used to transport information from a sender to a receiver. Multiple channels can be multiplexed over a single cable
window size
channel
classful addressing
network baseline
8. 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
TCP
Mail user agent
decapsulation
Internet control message protocol
9. A logical storage in the host's RAM to store ARP entries
multicast client
unshieled twisted-pair
segmentation
ARP cache
10. The IPv4 multicast addresses 224.0.0.0 to 224.0.0.255. These addresses are to be used for multicast groups on a local network. Packets to these destinations are always transmitted with a TTTL value of 1
4b/5b
URG
ARP cache
reserved link-local addresses
11. 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.
intermediary device
prefix length
encryption
collision domain
12. A field in the IP header that prevents a packet form indefinitely looping around an IP internetwork. Router decrements the TTL field each time they forward a packet - and if they decrement the TTL to 0 - the router discards the packet - which prevent
server
virtual local area network
encryption
Time to live
13. 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
directed broadcast
overhead
Open systems interconnection
local area network
14. To change the energy levels transmitted over some networking medium to transmit bits over that medium.
encode
metropolitan-area network
AND
channel
15. An encoding scheme 4B/5B uses 5-bit symbols and codes to represent 4 bits of data. 4B/5B is used in 100Base-tx ethernet.
4b/5b
syntax
SYN
Network address translation (NAT)
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
data communications equipment
window size
media independent
17. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5
thinnet
network segment
flow control
media independent
18. A list of router holds in memory for the purpose of deciding how to forward packets.
router
digital logic
routing table
window size
19. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability
network address
Open systems interconnection
flash
post office protocol
20. 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.
broadcast
enable password
quality of service
dns resolver
21. Program used to download and send email. Email clients use POP3 to receive emails and use SMTP to send emails. Also called an email client
daemon
Mail user agent
low-order bit
user executive mode
22. 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.
media access control
round-trip time
daemon
MAC table
23. 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
node
transparent bridging
best effort
MAC table
24. 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.
network baseline
Internet service provider
loopback
reserved link-local addresses
25. 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
encode
store and forward
symmetric switching
26. A written specification that defines what tasks a service or device should perform. Each protocol defines messages - often in the form of headers - plus the rules and processes by which these messages are used to achieve some stated purpose.
protocol
acknowledgment
maximum transmission unit
TCP/IP
27. 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
ping sweep
hop
maximum transmission unit
ARP cache
28. 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
directly connected network
pinout
routing
classful addressing
29. The lower of the two sublayers of the IEEE standard for ethernet. It is also the name of that sublayer
channel
Interpret as command
media access control
burned in address
30. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
Internet Engineering Task Force
router
protocol data unit
overhead
31. A method of expressing a network prefix. It uses a forward slash / followed by the network prefix.
nslookup
slash format
fault tolerance
syntax
32. 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.
collision domain
intranet
Internet backbone
high-order bit
33. 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.
connectionless
bridge table
default route
default gateway
34. A corporate system such as a website that is explicitly used by internal employees. Can be assessed internally or remotely
maximum transmission unit
Requests for Comments
intranet
directed broadcast
35. A protocol that allows a computer to retrieve email from a server.
RST
post office protocol
Internet control message protocol
hypertext transfer protocol
36. 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
transparent bridging
prviate address
backoff algorithm
Internet
37. A 32-bit number - written in dotted decimal notation - used by the IP to uniquely identify an interface connected to an IP network. It is also used as a destination address in an IP header to allow routing - and as a source address to allow a compute
attenuation
download
bridge
IP address
38. 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.
directly connected network
fiber-optic cable
client
switch
39. The time required to send a single bit over some transmission medium. The time can be calculated at 1/speed - where speed is the number of bits per second sent over the medium
pinout
Time to live
bit time
media-dependent interface crossover
40. The layer 3 address to which the data is going.
destination IP address
synchronous
Mail user agent
globally scoped addresses
41. Another form of the root word converge in the phrase converged network. This kind of network aggregates various forms of traffic such as voice - video and data on the same network infrastructure. A more common usage represents the process by which ro
dynamic or private ports
Internet control message protocol
port
convergence
42. A 1-bit flag in the TCP header that is used to request to the higher layers for immediate delivery of the packet.
PSH
slash format
intermediary device
default route
43. The optical or electrical impulse on a physical medium for purposes of communication.
SYN
virtual local area network
signal
decapsulation
44. A grouping of code that meets a certain - already specified - condition for entering in that certain group.
well known ports
URG
Internet Assigned Numbers Authority
code gropu
45. 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.
attenuation
IP header
broadcast domain
forwarding
46. 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.
authentication
store and forward
classless addressing
host group
47. An IPv4 multicast address that is restricted to a local group or organization.
nonvolatile RAM (NVRAM)
server message block
limited scope address
bridge
48. The ability of a protocol. system or component to be modified to fit a new need.
SYN
bridging
scalability
URG
49. 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
cache
hybrid fiber-coax
signal
symmetric switching
50. A network of computers that behave as if they are connected to the same network segment - even through they might be physically located on different segments of a LAN. VLANs are configured through software on the switch and router.
interframe spacing
virtual local area network
Network time protocol
dynamic routing
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