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Test your basic knowledge |
CCNA Network Fundamentals Vocab
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Subjects
:
cisco
,
it-skills
,
ccna
Instructions:
Answer 50 questions in 15 minutes.
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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. 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.
peer
cache
host group
forwarding
2. A protocol that allows a computer to retrieve email from a server.
hierarchical addressing
gateway
post office protocol
nslookup
3. 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.
bit
IP
hybrid fiber-coax
connection oriented
4. A type of network cabling that includes twisted-pair wires - with shielding around each pair of wires - as well as another shield around all wires in the cable.
bit
administratively scoped address
shielded twisted pair cable
cloud
5. The management of data flow between devices in a network. It is used to avoid too much data arriving before a device can handle it - causing data overflow.
Address resolution protocol
port
Mail user agent
flow control
6. 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.
ACK
Pad
plug-in
bit time
7. The layer 3 address to which the data is going.
backoff algorithm
low-order bit
destination IP address
binary
8. Unencrypted password used to allow access to privledge EXEC mode from IOS user EXEC mode.
switch table
delimiter
high-order bit
enable password
9. A process that uses the same ARP messages as a normal ARP - but by which a router replies instead of the host listed in the ARP request. When a router sees an ARP request that cannot reach the intended host - but for which the router knows a route to
domain name
code gropu
hybrid fiber-coax
proxy arp
10. Media access methodology in which a node wishing to transmit listens for a carrier wave before trying to send. If a carrier is sensed - the node waits for the transmission in progress to finish before initiating its own transmission.
source IP address
kilobits per second
carrier sense multiple access (CSMA)
control data
11. A network scanning technique used to identify which host IP addresses are operational.
latency
bit
ping sweep
nonvolatile RAM (NVRAM)
12. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
scope
store and forward
media-dependent interface (MDI)
URG
13. A notification sent from one network device to another to confirm that some event has occured.
acknowledgment
throuhpu
octet
jam signal
14. 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
nslookup
Mail user agent
fiber-optic cable
physical network
15. The structure and order of words in a computer language
syntax
router
authentication
dynamic host configuration protocol
16. 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.
peer
pulse amplitude modulation
Internet service provider
instant messaging
17. 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.
noise
filtering
Requests for Comments
protocol suite
18. The forwarding of packets where the forwarding decision is taken dynamically - hop by hop - based on the conditions of downstream fowrading nodes.
multiplexing
delimiter
selective forwarding
default route
19. An internationally recognized definition of technical specifications that ensure worldwide consistency.
domain name system
electromagnetic interface
standards
symmetric switching
20. A data link layer address - for example a MAC address
hypertext transfer protocol
extranet
Logical link control
physical address
21. In ethernet a layer 2 device that receives an electrical signal in one port - interprets the bits - and makes a filtering or forwarding decision about the frame. If it forward - it sends a regenerated signal. Switches typically have many physical por
switch
synchronous
prefix length
directly connected network
22. Using values between 1024 and 49 -151 these numbers are equivalent to well-known ports in concept - but they are specifically used for nonprivileged application processes.
SYN
Packet Tracer
registered ports
store and forward
23. A part of a computer network that every device communicates with using the same physical medium. Network segments are extended by hubs or repeaters.
ACK
network segment
locally administered address
acknowledgment
24. A corporate system such as a website that is explicitly used by internal employees. Can be assessed internally or remotely
dotted decimal
intranet
transparent bridging
ACK
25. 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
multiplexing
end device
distributed
carrier sense multiple access collision detect (CSMA/CD)
26. 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.
collision domain
window size
channel service unit/data service unit
low-order bit
27. A service or a program to look up information in the DNS
server
default gateway
SYN
nslookup
28. 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
router protocol
ARP poisoning
dotted decimal
Pad
29. 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
loopback
cache
Interpret as command
fault tolerance
30. 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
burned in address
Institute of Electrical and Electronics Engineers
bit time
FIN
31. IPv4 address of a network host. When talking about host addresses - they are the network layer addresses.
host address
administratively scoped address
channel service unit/data service unit
syntax
32. The dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.
authoritative
overhead
kilobits per second
fragmentation
33. 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.
enable password
4b/5b
Thicknet
Regional Internet Registries
34. 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
unshieled twisted-pair
segmentation
segment
host address
35. Information systems that allow the creation of a document or documents that can be edited by more than one person in real time
end device
Address resolution protocol
Network address translation (NAT)
collaborative
36. 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.
reserved link-local addresses
multicast client
media-dependent interface crossover
network baseline
37. 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.
Internet control message protocol
metropolitan-area network
gigabit ethernet
round-trip time
38. In a shared media ethernet network - a signal generated by the transmitting devices that detects the collision. The jam signal continue to transmit for a specified period to ensure that all devices on the network detect the collision. The jame signal
overhead
firewall
PSH
jam signal
39. A generic term from OSI that refers to the data - headers - and trailers about which a particular network layer is concerned.
protocol data unit
broadcast
Internet Assigned Numbers Authority
redundancy
40. Network protocols or technologies that do not use the acknowledgment system to guarantee reliable delivery of information
post office protocol
best effort
Mail user agent
scheme
41. In the telnet application - commands are always introduced by a character with the decimal code 255 - known as the Interpret as Command character.
delimiter
filtering
client
Interpret as command
42. 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
network baseline
end device
acknowledgment number
ACK
43. A group that receives a multicast transmission. The members of a multicast group have the same mulitcast IP addressing to receive the same transmission.
multicast group
carrier sense multiple access (CSMA)
broadcast
keyword
44. A process where multiple digital data streams are combined into one signal.
multiplexing
registered ports
media-dependent interface crossover
enable password
45. 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
transparent bridging
post office protocol
symmetric switching
bridge table
46. Communication that only allows one station to receive while the other station is transmitting
Internet backbone
half duplex
control data
signal
47. 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.
port
high-order bit
data communications equipment
dotted decimal
48. Line code in which each bit of data is signified by at least one voltage level transition.
most significant bit
connection oriented
manchester encoding
media access control
49. 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.
data termianl equipment
Regional Internet Registries
overhead
runt frame
50. A common term for 10base2 ethernet - referring to the fact that 10base2 cabling is thinner than coaxial cabling used for 10base5
encryption
multiplexing
router
thinnet
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