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Test your basic knowledge |
CCNA Network Fundamentals Vocab
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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. 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.
default route
latency
manchester encoding
attenuation
2. Interface by magnetic signals caused by the flow of electricity. EMI can cause reduced data integrity and increased error rates on transmission channels. The physics of this process are that electrical current creates magnetic fields - which in turn
electromagnetic interface
test-net address
default route
source IP address
3. 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.
keyword
resource records
digital logic
acknowledgment
4. The bit position in a binary number having the greatest value. The most significant bit is sometime referred to as the leftmost bit.
most significant bit
Network time protocol
ACK
acknowledgment number
5. A broadcast that is sent to a specific network or series of networks.
default route
low-order bit
host group
limited broadcast
6. A network device - typically connected to a range of LAN and WAN interfaces - that forwards packets based on their destination IP addresses.
Internet
global configuration mod
router
Institute of Electrical and Electronics Engineers
7. 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.
goodput
Pad
network address
network segment
8. Part of a company's intranet that is extended to users outside the company
peer
extranet
keyword
broadcast address
9. A protocol used between routers so that they can learn routes to add to their routing tables.
router protocol
routing table
fiber optics
ARP poisoning
10. Data that directs a process. a flag in a data-link frame is an example of control data.
frame
Network address translation (NAT)
control data
physical address
11. 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
Network address translation (NAT)
most significant bit
maximum transmission unit
interframe spacing
12. 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
decapsulation
Thicknet
distributed
positional notation
13. 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
ACK
Internet service provider
media independent
14. The optical or electrical impulse on a physical medium for purposes of communication.
logical topology
signal
dotted decimal
round-trip time
15. 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.
syntax
frame
fiber-optic cable
console port
16. 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.
dynamic host configuration protocol
bandwidth
convergence
radix
17. 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.
switch
symmetric switching
PSH
cyclic redundancy check
18. 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
Network time protocol
transparent bridging
subnet
broadcast domain
19. A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type.
priority queing
signal
kilobits per second
authentication
20. In ethernet - the process performed by a bridge or switch when it decides that it should send a frame out another port.
forwarding
Requests for Comments
user executive mode
code gropu
21. International standardization program created by ISO and ITU-T to develop standards for data networking that facilitate multivendor equipment interoperability
internetwork
low-order bit
Open systems interconnection
port
22. Routing that adjusts automatically to network topology or traffic changes.
Network address translation (NAT)
classful addressing
dynamic routing
RJ-45
23. 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.
router
backoff algorithm
smtp
virtual circuit
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
address pool
media access control
pinout
bridge
25. 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
IP address
Mail user agent
well known ports
smtp
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
prviate address
directed broadcast
media-dependent interface (MDI)
reserved link-local addresses
27. 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.
hypertext transfer protocol
bridge table
post office protocol
limited scope address
28. A logical storage in the host's RAM to store ARP entries
runt frame
host
burned in address
ARP cache
29. In the telnet application - commands are always introduced by a character with the decimal code 255 - known as the Interpret as Command character.
best effort
authentication
standards
Interpret as command
30. 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.
control data
signal
slash format
dynamic host configuration protocol
31. Ethernet that transmits data at 1 -000 -000 -000 one billion bits per second.
gigabit ethernet
goodput
attenuation
user executive mode
32. In a web browser - an application the browser uses - inside the browser window to display some types of content. For example - a browser typically uses a plug-in to display video.
plug-in
carrier
router protocol
switch table
33. A network model defined by the IETF that has been implemented on most computers and network device in the world.
bit time
TCP/IP
forwarding
user executive mode
34. A network device that has an IPv4 address assigned to it to communication over a network.
static route
URG
fault tolerance
host
35. The glass fibers inside certain cables over which light is transmitted to encode 0 and 1
fiber optics
switch table
Internet service provider
extended star
36. 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
collision domain
attenuation
digital logic
ARP poisoning
37. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.
IP
prviate address
multicast group
tracert
38. 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.
round-trip time
best effort
directly connected network
gigabit ethernet
39. 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
packet
client
dynamic host configuration protocol
40. The layer 3 address to which the data is going.
multicast group
destination IP address
association identity AID
console port
41. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
protocol data unit
address pool
radix
Regional Internet Registries
42. The standards body responsible for the development and approval of TCP/IP standards
interframe spacing
Time to live
Internet Engineering Task Force
quality of service
43. A device on a network that serves as an access point to other networks. A default gateway is used by a host to forward IP packets that have destination addresses outside the local subnet. A router interface typically is used as the default gateway. W
noise
Address resolution protocol
router
default gateway
44. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.
link-local address
keyword
logical network
router protocol
45. 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.
high-order bit
well known ports
Time to live
burned in address
46. A special reserved IPv4 address - 127.0.0.1 that can be used to test TCP/IP applications. Packets sent to 127.0.0.1 by a computer never leave the computer or even require working NIC. Instead - the packet is processed by IP at the lowest layer and is
ping sweep
loopback
URG
instant messaging
47. 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
keyword
hierarchical addressing
reserved link-local addresses
48. From the priviledged mode - you can enter the device's global caonfiguration mode. From global configuration mode - you can configure global parameters or enter other configuration submodes such as interface - router and line configuration submodes.
jam signal
global configuration mod
locally administered address
physical address
49. A corporate system such as a website that is explicitly used by internal employees. Can be assessed internally or remotely
switch table
overhead
client
intranet
50. A command on many computer operating systems that discovers the IP addresses - and possibly host names - of the routers used by the network when sending a packet from one computer to another.
symmetric switching
plug-in
tracert
bandwidth