Wag Ka Manigaw Flashcards
An application hands off a chunk of data to the TCP library, which un turn make calls to the IP library, which in turn call the LAN layer for actual delivery.
Layers
It is a group of applications requiring network communication.
INTERNET MODEL/ LAYER
Application Layer
It establishes the connection between application on different hosts.
INTERNET MODEL/ LAYER
Transport Layer
It is responsible for creating the packets that move across the network.
INTERNET MODEL/ LAYER
Network Layer
It is responsible for creating the frames that move across the network.
INTERNET MODEL/ LAYER
Data Link Layer
It is the transceiver that that drives the signal on the network.
INTERNET MODEL/ LAYER
Physical Layer
The speed at which data is transferred within the computer or between a peripheral device and the computer, measured in bytes per second.
Data Rate
It is the amount of data moved successfully from one place to another in a given time period.
Throughput
It refers to the theoretical rate speed of that data on your network can travel.
Bandwidth
Are modest-sized buffers of data, transmitted as a unit through some shared set of links.
Packets
It contains instructions about the data carried by the packet.
Header
It is the actual data recieve by the destination system.
Payload
It sometimes called the footer, typically contains a couple of bits that tell the receiving device that it has reached the end of the pocket.
Trailer
It is the arrangement with which computer system or network devices are connected to each other.
Topology
It is a set of entries in the forwarding tables that cause some packets to circulate endlessly.
Routing Loops
It is the reduced quality of service that occurs when a network node or link is carrying more data that it can be.
Congestion
Causes of Congestion
- Too many hosts in broadcast domain
- Broadcast Storm
- Low Bandwidth
- Adding Retransmitting Hubs
- Multicasting
- Outdated Hardware
- Bad Configuration Management
- Rogue Adapter Broadcast
- Artificial Congestion
It is a communication protocol for LAN.
Ethernet
Are independent networks but may be linked within a WAN through internet devices such as Routers.
LAN
It is principal communication protocol in the internet protocol suite for relaying datagrams across network boundaries.
Internet Protocol (IP)
It provides a global mechanism for addressing and routing, so that packets cam actually be delivered from any host to another host.
Internet Protocol (IP)
It is originated in the initial network implementation in which it complemented the Internet Protocol.
Transmission Control Protocol (TCP)
It is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or private network.
Domain Name System (DNS)
It is a system designed to prevent unauthorized access to or from a private network.
Firewall
It is used to determine if another machine is accessible.
Ping
Is a way of connecting computers together in a local area network or LAN.
Ethernet
It is an electronic device that receives a signal and retransmits it.
Repeater
It is a networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destination device.
Switches
It is a multiport network bridge that uses MAC addresses to forward data at the data link layer of the OSI model.
Switches
NIC means?
Network Interface Card
Repeater is also called as?
Digital Regenerator
It allows branching and thus more complex topologies.
Hub
CRC means.
Cyclical Redundancy Check
Usually used to connect points on a company’s internal LAN.
LAN Switches
- Are frequently used in home networks, small companies and businesses.
- Does not necessarily need to configured or watched.
Unmanaged Switch
They offer some features like QoS (Quality of Service), Simple Network Management Protocol (SNMP) and ao on.
Manage Switch
Switch that can support power and data transmission over one network at the same time.
PoE Switch
It provide a way to simplify and increase the availability of the network.
Stackable Switch
Types of Switches
- LAN Switch
- Manage Switch
- Unmanage Switch
- PoE Switch
- Stackable Switch
