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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. Line code in which 1s are represented by one significant condition and 0s are represented by another.
flooding
query
routing
nonreturn to zero
2. 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
high-order bit
extended star
binary
ARP poisoning
3. An internet wide system by which a hierarchical set of DNS servers collectively hold all the name IP address mappings - with DNS servers referring users to the correct DNS server to successfully resolve a DNS name.
domain name system
TCP/IP
router
scheme
4. The cabling and connectors used to interconnect the network devices.
physical media
virtual local area network
host group
loopback
5. A network device that accesses a service on another computer remotely by accessing the network.
media-dependent interface crossover
protocol
client
authentication
6. An organization that assigns the numbers important to the proper operation of the TCP/IP protocol and the Internet - including assigning globally unique IP addresses.
authoritative
Internet Assigned Numbers Authority
Time to live
user executive mode
7. Network protocols or technologies that do not use the acknowledgment system to guarantee reliable delivery of information
broadcast
best effort
node
Requests for Comments
8. 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.
hub
host
user executive mode
cache
9. 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
firewall
asynchronous
Time to live
10. A dotted decimal number that helps identify the structure of IP addresses. The mask represents the network and subnet parts of related IP addresses with binary 1s and the host part of related IP addresses with binary 0s
nonreturn to zero
virtual circuit
carrier sense multiple access (CSMA)
subnet mask
11. 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.
dynamic host configuration protocol
host group
IP
multicast group
12. A network that incorporates both optical fiber along with coaxial cable to create a broadband network. commonly used by cable tv companies.
window size
hybrid fiber-coax
public address
Internet service provider
13. In networking - a general term referring to any energy signal on a transmission medium that is not part of the signal used to transmit data over that medium.
transparent bridging
Open systems interconnection
noise
channel
14. 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.
latency
router
virtual circuit
code gropu
15. 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
prviate address
classful addressing
Network address translation (NAT)
loopback
16. A logical storage in the host's RAM to store ARP entries
ARP cache
goodput
domain name
Internet Engineering Task Force
17. 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.
administratively scoped address
authentication
deterministic
Requests for Comments
18. Data link layer term describing a device connected to a network.
Organizational Unique Identifier
node
plug-in
cloud
19. The optical or electrical impulse on a physical medium for purposes of communication.
signal
logical network
Regional Internet Registries
single point of failure
20. 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
window size
electromagnetic interface
virtual terminal line
cache
21. A data link layer address - for example a MAC address
peer
domain name
physical address
hierarchical addressing
22. 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
default gateway
router
window size
logical network
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.
positional notation
smtp
best effort
test-net address
24. 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.
connection oriented
high-order bit
port
router protocol
25. 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.
redundancy
nslookup
Internet control message protocol
Requests for Comments
26. A general type of cable - with the cable holding twisted pairs of copper wires and the cable itself having little shielding.
channel service unit/data service unit
physical address
International Organization for Standardization
unshieled twisted-pair
27. The network that combines enterprise networks - individual users - and ISPs into a single global IP network.
half duplex
Logical link control
IP address
Internet
28. 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.
filtering
collision
pulse amplitude modulation
default route
29. 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.
4b/5b
IP
administratively scoped address
virtual local area network
30. 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
virtual circuit
channel
host group
fragmentation
31. A process where multiple digital data streams are combined into one signal.
low-order bit
multiplexing
cache
Network time protocol
32. The process by which a router receives an incoming frame - discards the ata link header and trailer - makes a forwarding decision based on the destination IP address - adds a new data-link header and trailer based on the outgoing interface and forwar
download
hypertext transfer protocol
routing
intermediary device
33. On a switch - a table that lists all known MAC addresses - and the bridges/switch port out which the bridge/switch should forward frames sent to each MAC address.
encode
redundancy
broadcast domain
MAC table
34. A collection of data that establishes a reference for network performance and behavior over a period of time. This reference data is used in the future to assess the health and relative growth of network utilization.
radix
host group
network baseline
daemon
35. 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.
best effort
gateway
bandwidth
symmetric switching
36. In networking - a symbol used when drawing network diagrams that represent a part of the network whose details can be ignored for the purposes of the diagram.
cloud
scalability
TCP/IP
plug-in
37. The range of ip addresses that can be assigned by the DHCP server.
address pool
dynamic or private ports
domain name system
link-local address
38. As filed in the TCP header that is set in a sent segment - signifies the maximum amount of unacknowledged data the host is willing to receive before the other sending host must wait for an acknowledgment.
window size
most significant bit
directed broadcast
scheme
39. 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.
acknowledgment
address pool
decapsulation
server
40. 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.
bridge table
extranet
synchronous
selective forwarding
41. A rectangular cabling connector with eight pins - often used with ethernet cables.
nonreturn to zero
fragmentation
RJ-45
classless addressing
42. Defines the commands - headers and processes by which web server and web browsers transfer files.
globally scoped addresses
hypertext transfer protocol
link-local address
flooding
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.
filtering
channel service unit/data service unit
fiber-optic cable
SYN
44. 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
channel service unit/data service unit
globally scoped addresses
hybrid fiber-coax
bandwidth
45. TCP or UDP ports that range from 49152 to 65535 and are not used by any defined server applications.
routing
collaborative
TCP
dynamic or private ports
46. Radio frequencies that creat noise that interferes with information being transmitted across unshielded copper cabling.
carrier
dynamic or private ports
radio frequency interference
dynamic host configuration protocol
47. 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
encode
overhead
directed broadcast
electromagnetic interface
48. A form of transmission where one device transmits to all devices within the network or on another network
layered model
broadcast
Open systems interconnection
metropolitan-area network
49. An international standards body that defines many networking standards. Also - the standards body that created the OSI model.
International Organization for Standardization
network baseline
physical media
bridge table
50. 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.
switch table
port
fault tolerance
locally administered address