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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. Used in the CLI following the command. Keywords are parameters that are used with the command from a set of predefined values.
physical topology
keyword
fragmentation
default gateway
2. A device that connects to a local digital telephone loop for a WAN circuit to a serial interface on a network device - typically connecting to a router. The CSU/DSU performs physical Layer 1 signaling on WAN circuits
Address resolution protocol
radix
thinnet
channel service unit/data service unit
3. A map of the devices on a network representing how the devices communcate with each other.
logical topology
flash
dynamic routing
signal
4. A 1-bt flag in the TCP header used to indicate the initial value of the sequence number. The SYN flag is only set in the first two segments of the three-way TCP connection establishment sequence.
deterministic
SYN
carrier sense multiple access collision detect (CSMA/CD)
quality of service
5. Additional data that is provided with a command to provide information used by the execution of the command. IOS command arguments are entered at the CLI after the command
proxy arp
media-dependent interface crossover
argument
enable password
6. Defines the commands - headers and processes by which web server and web browsers transfer files.
binary
manchester encoding
hypertext transfer protocol
segment
7. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
domain name system
server message block
cyclic redundancy check
protocol data unit
8. 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.
Institute of Electrical and Electronics Engineers
synchronous
locally administered address
kilobits per second
9. A notification sent from one network device to another to confirm that some event has occured.
acknowledgment
link-local address
filtering
binary
10. A 1-bit field in the TCP header that is used by a device that wants to terminate its session with the other device. This is done by inserting the FIN flag in the flag field found in the TCP segment
pinout
Logical link control
goodput
FIN
11. 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
scheme
priority queing
segment
IP address
12. Normally - a relatively general term that refers to dfifferent kinds of networking devices. Historically - when routers were created - they were called gateways
gateway
global configuration mod
pinout
locally administered address
13. Communication that only allows one station to receive while the other station is transmitting
token passing
router
half duplex
redundancy
14. 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.
instant messaging
global configuration mod
signal
store and forward
15. 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
segment
multiplexing
cyclic redundancy check
redundancy
16. Data link layer term describing a device connected to a network.
Network address translation (NAT)
encryption
protocol data unit
node
17. An IPv4 multicast address that is restricted to a local group or organization
administratively scoped address
Regional Internet Registries
selective forwarding
digital logic
18. 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.
query
virtual terminal line
radix
server message block
19. A network device - typically connected to a range of LAN and WAN interfaces - that forwards packets based on their destination IP addresses.
4b/5b
limited scope address
source
router
20. 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
resource records
kilobits per second
electromagnetic interface
asynchronous
21. The minimum time a NIC or interface can take to send an entire frame. Slot time - then - implies a minimum frame size.
slot time
syntax
enable password
hierarchical addressing
22. Any communication in which the sender and receiver do not prearrange for communications to occur
physical address
multicast client
connectionless
Pad
23. 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.
quality of service
Internet service provider
user executive mode
International Organization for Standardization
24. A network topology characterized by a central location connected to multiple hubs. In an extended star - these interconnected hubs may be connected to more hubs. It is essentially a hierarchical topology but typically is drawn with the central site i
data termianl equipment
extended star
nslookup
post office protocol
25. In networking - this term is used in several ways. With ethernet hub and switch hardware - port is simply another name for interface - which is a physical connector in the swithc into whic a cable can be connected. With TCP and UDP - a port is a soft
link-local address
port
enable password
transparent bridging
26. A service or a program to look up information in the DNS
nslookup
subnet
Network address translation (NAT)
packet
27. 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.
multiplexing
carrier sense multiple access (CSMA)
resource records
slash format
28. 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.
syntax
metropolitan-area network
round-trip time
domain name
29. A corporate system such as a website that is explicitly used by internal employees. Can be assessed internally or remotely
positional notation
dynamic or private ports
intranet
domain name system
30. A network model defined by the IETF that has been implemented on most computers and network device in the world.
distributed
TCP/IP
domain name system
session
31. 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.
channel
internetwork
radio frequency interference
dynamic host configuration protocol
32. A list of router holds in memory for the purpose of deciding how to forward packets.
Regional Internet Registries
metropolitan-area network
source
routing table
33. 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.
attenuation
backoff algorithm
fiber-optic cable
network
34. A popular certification method for fiber systems. The OTDR injects light into the fiber and then graphically displays the results of the detected reflected light. The OTDR measures the elapsed transit time of reflected light to calculate the distance
logical network
bit
Optical time domain reflectometer
port
35. A plan - design or program of action to be followed. Sometimes an addressing plan is called an addressing SCHEME.
firewall
internetwork
download
scheme
36. A data link layer address - for example a MAC address
media-dependent interface crossover
store and forward
physical address
digital logic
37. 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
scalability
ACK
cyclic redundancy check
electromagnetic interface
38. 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.
deterministic
reserved link-local addresses
local area network
burned in address
39. 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.
IP header
broadcast domain
source
quality of service
40. 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.
default route
tracert
query
virtual terminal line
41. 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
media-dependent interface crossover
pulse amplitude modulation
media access control
argument
42. 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.
hop
switch
dynamic host configuration protocol
hub
43. A grouping of code that meets a certain - already specified - condition for entering in that certain group.
dns resolver
URG
bridging
code gropu
44. 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.
high-order bit
broadcast
metropolitan-area network
Internet Engineering Task Force
45. Communication that uses a common clocking signal. In most synchronous communicatino - one of the communicating devices generates a clock signal into the circuit. Additional timing information is not required in the header.
Internet Assigned Numbers Authority
keyword
synchronous
ARP table
46. A number used in the 802.11 header to specify the session between a wireless client and the access point.
internetwork
local area network
full duplex
association identity AID
47. The first half of a MAC address. Manufactures must ensure that the value of the OUI has been registered with the IEEE. This value identifies the manufacturer of any Ethernet NIC or interface.
IP header
global configuration mod
PSH
Organizational Unique Identifier
48. Communication where the sender and receiver must prearrange for communications to occur; otherwise - the communication fails.
resource records
hub
connection oriented
public address
49. 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
channel
connection oriented
data communications equipment
nonreturn to zero
50. Unique addresses that are public domain addresses.
media access control
4b/5b
globally scoped addresses
switch