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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. 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.
convergence
globally scoped addresses
virtual terminal line
domain name system
2. A list of router holds in memory for the purpose of deciding how to forward packets.
routing table
FIN
acknowledgment
classless addressing
3. The IPv4 address block 192.0.2.0 to 192.0.2.255 that is set aside for teaching and learning purposes. These addresses can be used in documentation and network examples.
subnet
test-net address
bit time
low-order bit
4. A group of devices associated by the arrangement of a hierarchial addressing scheme. Devices in the same logical network that share a common network portion of their Layer 3 addresses.
classful addressing
console port
slot time
logical network
5. A name - as defined by DNS that uniquely identifies a computer in the internet. DNS servers can then respond to the DNS requests by supplying the IP address that is used by the computer that has a particular domain name. This term also refers to the
Network address translation (NAT)
TCP/IP
console port
domain name
6. A unit of measurement of the number of times 1000 bits can be transmitted in 1 second. 1 kbps = 1000bps
server
Network address translation (NAT)
half duplex
kilobits per second
7. An IP address that has been registered with IANA or one of its member agencies - which guarantees that the address is globally unique. Globally unique public IP addresses can be used for packets sent through the Internet.
attenuation
public address
Internet control message protocol
latency
8. The networking layers whose processes are not affected by the media being used. In ethernet - these are all the layers from the LLC sublayer of data link upward.
media independent
Mail user agent
RJ-45
default route
9. Radio frequencies that creat noise that interferes with information being transmitted across unshielded copper cabling.
Organizational Unique Identifier
overhead
radio frequency interference
media-dependent interface (MDI)
10. 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.
registered ports
flooding
keyword
host group
11. The limited CLI mode where the commands available to the user are a subset of those available at the privileged level. In general - use the user Exec commands to temporarily change terminal settings - perform basic tests and list system information.
protocol data unit
bandwidth
node
user executive mode
12. 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.
port
fiber-optic cable
octet
unshieled twisted-pair
13. 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.
network baseline
cyclic redundancy check
connection oriented
keyword
14. 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.
media access control
Internet backbone
deterministic
bridge
15. The retransmission delay used with CSMA/CD when a collision occurs. The algorithm forces each sender that detected the collisions to delay a random amount of time before attempting to retransmit.
port
backoff algorithm
nonvolatile RAM (NVRAM)
Requests for Comments
16. A 1-bit flag in the TCP header used to indicate that the receiving host should notify the destination process to do urgent processing.
URG
segmentation
prefix length
proxy arp
17. 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
subnet mask
nonvolatile RAM (NVRAM)
port
virtual terminal line
18. Routing that adjusts automatically to network topology or traffic changes.
dispersion
dynamic routing
Pad
cyclic redundancy check
19. A logical connection between devices in which the frames are passed between the devices. Virtual circuits are independent of the physical structure and may be established through multiple physical devices.
ping sweep
source
network baseline
virtual circuit
20. A protocol that allows a computer to retrieve email from a server.
post office protocol
flash
well known ports
ethernet PHY
21. Communication that allows receipt and transmission simultaneously. A station can transmit and receive at the same time. There are no collisions with full-duplex ethernet transmision.
high-order bit
full duplex
ethernet PHY
SYN
22. Also known as boolean algebra. These consist of the AND OR and IF operations
slash format
argument
bit
digital logic
23. 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
port
asynchronous
query
ARP table
24. A member of a multicast group. Every multicast client in each group has the same IP address. Multicast addresses begin with 224... and end with 239...
multicast client
internetwork
hypertext transfer protocol
registered ports
25. A group of 8 binary bits. It is similar to - but not the same as - a byte. One Application in computer network is to use octets to divide IPv4 addresses into four components
network address
octet
segmentation
multicast client
26. 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.
redundancy
network interface card
noise
directed broadcast
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.
resource records
Institute of Electrical and Electronics Engineers
nonvolatile RAM (NVRAM)
asynchronous
28. The ability of a protocol. system or component to be modified to fit a new need.
packet
scope
scalability
test-net address
29. The normal operation of ethernet ports on a hub. In this mode - the mapping of the wire pairs in the hub port is in a normal configuration. Some hubs provide a media-dependent interface/media-dependent interface - crossover switch. This switch is usu
download
collision
selective forwarding
media-dependent interface (MDI)
30. 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
cloud
maximum transmission unit
kilobits per second
pulse amplitude modulation
31. The dividing of IP datagrams to meet the MTU requirement of a layer 2 protocol.
subnet mask
store and forward
fragmentation
carrier
32. A network device that has an IPv4 address assigned to it to communication over a network.
SYN
protocol
deterministic
host
33. 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.
burned in address
scheme
directed broadcast
acknowledgment
34. TCP or UDP ports that range from 49152 to 65535 and are not used by any defined server applications.
manchester encoding
argument
dynamic or private ports
jam signal
35. 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
hypertext transfer protocol
flow control
transparent bridging
36. 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.
gigabit ethernet
test-net address
global configuration mod
encapsulation
37. An entry in an IP routing table that was created because a network engineer entered the routing information into the router's configuration.
static route
maximum transmission unit
flow control
attenuation
38. 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.
host group
virtual local area network
registered ports
Internet Assigned Numbers Authority
39. 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
pinout
enable password
convergence
media-dependent interface crossover
40. 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.
manchester encoding
Internet
token passing
IP
41. Part of a company's intranet that is extended to users outside the company
extranet
layered model
bridge
kilobits per second
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
acknowledgment number
download
scalability
logical topology
43. The process of forwarding frames in a switch or a bridge from one port to another port or from segment to segment
bridging
test-net address
network baseline
Time to live
44. 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
public address
prefix length
ARP poisoning
dynamic or private ports
45. 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
link-local address
proxy arp
Mail user agent
46. A group of IP addresses that have the same value in the first part of the IP addresses - for the purpose of allowing routing to identify the group by the inital part of the addresses. IP addresses in the same subnet typically sit on the same network
throuhpu
server
media independent
subnet
47. 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
locally administered address
registered ports
collaborative
48. A process where multiple digital data streams are combined into one signal.
virtual circuit
scalability
multiplexing
hop
49. Any combination of hardware device and/or software application designed to protect network devices from outside network users and/or malicious applications and files.
distributed
firewall
jam signal
fragmentation
50. The extent of a certain item. For example - an address scope is also known as a range of addresses from beginning of the range to the end.
International Organization for Standardization
administratively scoped address
scope
IP address