Into NetWorker 7.3.x and different logs in the system. In addition to the reports there are additional, more sophisticated ways to identify bottlenecks. One method uses Backup Advisor to analyze a backup system and graphically represent host performance and its performance throughout the night.
Networking goes hand in hand with running a successful business.
But many of us dread walking into a room and introducing ourselves to a bunch of strangers.
I've been asked to share my best networking tips at a meeting today of the National Association of Women Business Owners in Philadelphia. Here are the most valuable tips I've come across – and put to work myself – over the years:
1. Resist the urge to arrive late. It's almost counter-intuitive, but showing up early at a networking event is a much better strategy than getting there on the later side. As a first attendee, you'll notice that it's calmer and quieter – and people won't have settled into groups yet. It's easier to find other people who don't have conversation partners yet.
2. Ask easy questions. Don't wait around the edges of the room, waiting for someone to approach you. To get the conversation started, simply walk up to a person or a group, and say, 'May I join you' or 'What brings you to this event?' Don't forget to listen intently to their replies. If you're not a natural extrovert, you're probably a very good listener – and listening can be an excellent way to get to know a person.
- 5.3.1.3 Packet Tracer – Identify MAC and IP Addresses Packet Tracer – Identify MAC and IP Addresses (Answer Version – Optional Packet Tracer) Answer Note: Red font color or gray highlights indicate text that appears in the Answer copy only. Optional activities are designed to enhance understanding and/or to provide additional practice.
- In part 1 of a 3 part series on networking, Jim Gibson will discuss the history of networks and legacy systems that predated modern LAN technology.
- Start studying 5.7.3 Practice Test. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
- Adopted Regulations. The following regulations have been adopted by the Mississippi Insurance Department: Part 101. Code, Part 101, Chapter 1: Rules and Regulations for Minimum Standards Certification (MSCB-1) Effective January 1, 2015.
3. Ditch the sales pitch. Remember, networking is all about relationship building. Keep your exchange fun, light and informal – you don't need to do the hard sell within minutes of meeting a person. The idea is to get the conversation started. People are more apt to do business with – or partner with – people whose company they enjoy.
If a potential customer does ask you about your product or service, be ready with an easy description of your company. Before the event, create a mental list of recent accomplishments, such as a new client you've landed or project you've completed. That way, you can easily pull an item off that list and into the conversation.
4. Share your passion. How to report an epic games account. Win people over with your enthusiasm for your product or service. Leave a lasting impression by telling a story about why you were inspired to create your company. Talking about what you enjoy is often contagious, too. When you get other people to share their passion, it creates a memorable two-way conversation.
5. Smile. It's a simple – but often overlooked – rule of engagement. By smiling, you'll put your nervous self at ease, and you'll also come across as warm and inviting to others. Remember to smile before you enter the room, or before you start your next conversation. Cryptoedit 2 2 1 download free. And if you're really dreading the event? Check the negative attitude at the door.
6. Don't hijack the conversation. Some people who dislike networking may overcompensate by commandeering the discussion. Don't forget: The most successful networkers (think of those you've met) are good at making other people feel special. Sketch 2 mac app store. Look people in the eye, repeat their name, listen to what they have to say, and suggest topics that are easy to discuss. Be a conversationalist, not a talker.
7. Remember to follow up. It's often said that networking is where the conversation begins, not ends. If you've had a great exchange, ask your conversation partner the best way to stay in touch. Some people like email or phone; others prefer social networks like LinkedIn. Get in touch within 48 hours of the event to show you're interested and available, and reference something you discussed, so your contact remembers you.
Readers, what's your best networking tip?
Here we look at the most basic features of networking and packets.
Networking
- Computer Networks are like a phone system for computers
- A computer places a 'call' to exchange data with another computer
- The communication is always just bytes
- Worth knowing the basics, you are using the network constantly
- When you wake up, how long passes before using a network?
Computer networks are complicated in the details, but the basic ideas of how it all works are surprisingly simple, and that's what we're going to study.
The Internet is like a global phone system for computers: a computer can 'call' another computer on the internet to get or send a little information. Suppose your laptop is connected to the internet, and you type 'http://www.nytimes.com' into your browser -- what happens? Your computer contacts the computer 'www.nytimes.com' -- placing a 'call' in effect -- and sends a request for the main web page. The request is small, about 1KB (1 kilobyte). The www.nytimes.com machine sends back a large response which is the web page -- maybe 200KB -- and ends the call. Your browser gets back all this data and formats it for your screen so you can read the text, click links etc. We'll look at this fetch-web-page example a few different ways to see how the internet works.
LAN - Local Area Network
- Start with small scale
- LAN - Local Area Network
- One house, one floor of a building
- Later, show scale up to world-wide internet
- Two super popular LAN technologies
- Ethernet, wired LAN
- Wi-Fi, wireless LAN
We'll start by looking at LAN (local area network) technology -- connecting 2-50 computers in a house or on one floor of a building.
Ethernet LAN - Bandwidth
- Very popular wired LAN technology, 1974
- Wires about as thick as a drinking straw
- 100 meter max wire length
- Wires often yellow or blue
- RJ-45 plug, like a big phone plug
- bandwidth speed - bits per second
- Typical bandwidth numbers:
- 100 megabits, 100 million bits per second, aka 100 mbps
- 1 gigabit, 1 billion bits per second, aka 1 gbps, 1000 mbps - letter 'b' confusion - note 'mbps' and 'gbps' refer to bits not bytes
- Networking speeds generally quoted in bits-per-second, as above
![101 101](https://surveymonkey-assets.s3.amazonaws.com/survey/171626309/7baf79db-f101-454b-a212-5349394d742b.png)
Ethernet RJ45 plug
Ethernet cables plugged into the back of a Wi-Fi router (Linksys WRT54g)
Ethernet is an extremely common and influential wired LAN standard, so we'll start there. Ethernet cable lengths are typically limited to 100 meters, in keeping with its 'local' orientation. A typical LAN application is networking the computers in one room or in one floor of a building. The most common form of ethernet wiring is 100base-T (100 megabit) with 'RJ-45' connectors on the ends. An RJ-45 connector is about the size of your pinkie finger, like a wide phone wire plug.
Packets - Data From Here to There
- e.g. send an image file between ethernet connected computers
- This is the 'one hop' LAN case (scale up to whole world later)
- e.g. 50KB image.jpg
- 50,000 bytes
- How to send the image.jpg on the wire?
- Use packets
- Divide bytes of image.jpg into packets
- Say each packet is 1500 bytes (varies)
- Then image.jpg divides into about 32 packets
- Network transmits one packet at a time
![101 101](https://www.memminger-iro.de/gfx_content/relaunch/kopfgrafik/MPFL-memminger-iro.jpg)
Ethernet RJ45 plug
Ethernet cables plugged into the back of a Wi-Fi router (Linksys WRT54g)
Ethernet is an extremely common and influential wired LAN standard, so we'll start there. Ethernet cable lengths are typically limited to 100 meters, in keeping with its 'local' orientation. A typical LAN application is networking the computers in one room or in one floor of a building. The most common form of ethernet wiring is 100base-T (100 megabit) with 'RJ-45' connectors on the ends. An RJ-45 connector is about the size of your pinkie finger, like a wide phone wire plug.
Packets - Data From Here to There
- e.g. send an image file between ethernet connected computers
- This is the 'one hop' LAN case (scale up to whole world later)
- e.g. 50KB image.jpg
- 50,000 bytes
- How to send the image.jpg on the wire?
- Use packets
- Divide bytes of image.jpg into packets
- Say each packet is 1500 bytes (varies)
- Then image.jpg divides into about 32 packets
- Network transmits one packet at a time
We'll start with the simplest case of two computer connected with an ethernet cable, and we want to send a 50KB jpeg image file from one computer to the other. This is the 'one-hop' case . networking between two computers separated only by an ethernet cable. Later we'll scale this up to the full Internet case of two computers on separate sides of the world. The first question is: how are the bytes of the image file on one computer sent to the other computer over the ethernet cable (or over Wi-Fi)?
For transmission, the 50KB of the image is divided into packets. The packet is the natural unit of transmission within networking. In this case, say each packet is about 1500 bytes (a typical packet size), then the bytes of the 50KB image could be divided into about 32 packets of around 1500 bytes each. https://uekzof.over-blog.com/2021/01/english-new-x.html. Door kickers 1 1 5. It is not required that all the packets be the same size, just that every byte of the image is sent in one packet or another.
Ethernet - Sending One Packet
- Look at transmission of one 1500 byte packet
- Each byte is 8 bits, e.g. 0 1 1 0 1 0 1 0
- 1500 bytes * 8 bits-per-byte = 12000 bits total
- Send each byte (slight simplification):
-Go through all the bits, from left to right
-For each 1, put 3 volts on the wire
-For each 0, put 0 volts on the wire - To receive the packet:
-Follow along the pattern of 3 volts / 0 volts coming down the wire
-Assemble the 0's and 1's in groups of 8 to make each byte - digital transmission - just 0's and 1's
- Proceeds at around 2/3 the speed of light (varies)
Ethernet provides a basic facility to transmit a packet between two computers connected by the ethernet cable. Say we have a packet of 1500 bytes of information we want to send. Each byte is 8 bits, so that's 12000 bits to send, where each bit is a 0 or 1. Here's an oversimplification that captures how it works: the ethernet cable contains two wires connecting the computers. The sending computer could read through the 12000 bits in order, and for each 1 bit, put 3 volts between the wires, and for each 0 bit, put 0 volts between the wires. The receiving computer can follow along, noting the 3v/0v pattern on the wires over time and so receive the 12000 bits. In reality the most recent ethernet contains 4 pairs of wires and supports sending information in both directions and with a more complex voltage scheme. However, this pattern of going through the bits and varying the voltage to 'send' each bit is essentially how it all works.
Checksum vs. Errors
Networker 5 3 101 Quizlet
- checksums detect transmission errors
- Allow the receiver to detect that a packet was received correctly
- Example checksum scheme:
-Each byte is a number from 0-255
-Sender adds up all packet's bytes, say the sum is 157231
-Take the last 2 digits, 31, as the 'checksum' of the packet
-Sender appends a checksum byte at the end of the packet
-Receiver: add up the bytes received, check that the checksum matches
Checksum not matching indicates data corruption
Receiver asks the sender to re-send that packet - Very likely to detect errors
- Not perfect - 2 errors could cancel out
- Actual checksum schemes used are better than just the sum
- Checksums are very widely used:
ethernet, USB, Wi-Fi, . everything! - This is how your file transfers get every bit correct
- Recall analog/digital theme: once the data is numbers, many useful algorithms are easy. Checksums are another example.
Networker 5 3 101 Dalmatians
Packet checksum example:
Each packet includes extra checksum bytes, so the receiver of the packet can detect if some of the bits in the packet got corrupted in transmission. A simple example checksum scheme would be: go through all the bytes, and add them all up. The checksum is the last 2 digits of the sum of all the bytes; send that checksum as an extra byte along with the rest of the packet data. The receiver can do the same computation -- adding up all the bytes -- to check that they get the same checksum. The actual checksum algorithm is more complex than just adding up the bytes, and is more capable of detecting errors. The checksum is probabilistic, not detecting 100% of errors; there is a microscopic chance that an error occurs but the checksum does not catch it.
Networker 5 3 101 Principles
The checksum allows the receiver to notice that a packet did not come through right, and get the sender to re-send that packet. Most packets get through fine, but re-sending a few packets happens all the time in your life. In this way, when you send a JPEG file from one place to another, it comes through correctly, down to every last bit.