Dummies four time limit: 1000 MS | memory limit: 65535 kb difficulty: 3
Description
These days, dummies have been studying stocks. After research, they finally found that the stock laws of XXX company. what's even better is that dummies work out the company's stock price every day to prevent others from discovering its secrets. He decided to buy the c
objective, users are objective, users are objective, and needs are objective. Everything is realistic.2. Principle 1: the customer is always right.Customers are not our enemies, and customers will not harm us. The customer's demands seem to embarrass us, but they are essentially trying to make customers better use their products. Therefore, customers will not embarrass themselves.3. Principle 2: provide the most appropriate solution, not the best or most expensive solution.What we can do is not
through the whole Echo process and tell you that I can't do it either ). Keep a low profile, so I think of myself as a new person. Looking back on these two years, I always feel empty!4. "What are my rights and obligations? What are my responsibilities? "Both Echo and Reecho have this feeling. It seems that everything needs to be done. But when you make suggestions and criticisms, no one cares about you. 'Who are you, how sad it is to listen to you. Because I am only a developer, of course I ca
Bolg is not just an original article. Of course there are somePseudo-originalThe article, the pseudo-good or bad, the selection of the article, has been plagued by new users such as me. Many of my friends copied some popular articles and made changes, and then posted them on their websites in a rush. Finally, Baidu only recorded the homepage, it is very difficult, but google is doing better in this regard, and the record is OK.
Here, Chen tofu also shares the operating ideas and techniques of hi
to dominate the sea want to die for these non-existent fantasies. The dead dummies only get one sentence, and that guy once lived in a dream, so happy! I feel sick when I see the dummies of my dreams !"
Lu Fei: suo long, this is definitely not a fight!
Have you ever wondered why this is definitely not a fight? Why not defend your dreams? Lu Fei knew that they were not a means to defend their dreams, so he
access the internet. I really want to spend a lot of time studying how Linux works documents, only a few Linux developers and enthusiasts can access the Internet and achieve multimedia.======================================The features you need can be fully met in windows. I don't know why you have to look for Linux. If you really want to study it, be humble.A little. Windows is like a dummies camera. It's very easy to use. Linux is a professional ca
how did you do it? There are hundreds of thousands of combs, but there are hundreds of thousands of dollars. Where do you come with so much money ?"
LV Bu smiled and said, "What is it about weak meat? Where is the weakness? All on this head! Therefore, every business-minded person will look at a group of dummies and dummies. Dong Zhuo will be like this, so will Lu Bu. He used his monthly salary of Yuan as
wire logging tool with the wire slots and wires of the information module, and cut off the extra wires outside the module. Repeat this operation and connect the streamline in the cable to the metal slice behind the module.
Step 2: add the plastic dust-proof sheets of the information module to the twisted pair wire along the gap and fix them on the information module. Then, stamp the module with an iron and press it to complete the whole process of making the module. Then, put the created inform
judgment. Otherwise, it may waste a lot of time in the wrong direction. The statistical data shows that the switch port and network card work in full duplex and half duplex) mismatch accounts for a considerable part of the fault.To sum up, simply look at the green or yellow LED lights on the NIC or switch to make judgments on the cable, Nic or switch port. Otherwise, incorrect judgment due to a simple phenomenon will lead the fault diagnosis to go astray and waste a lot of time. In addition, th
include: whether the connection pulse of the NIC is available and normal (power level and polarity), and whether the NIC level is normal, whether the speed of the network adapter matches the speed of the hub or switch (10 M or 100 M), and whether the network adapter works in a way that matches the network device (full or half duplex ), whether the network card is very wrong frame (long horizontal frame and short frame) And what protocols are bound to the network card.
range. Generally, the output power is 0 dBm (1 Mw) or less, the working distance is 2 to 5 km, and all universal connectors are supported.
3. Optical Loss Test Equipment, also known as A multimeter or power meter ).
To measure the loss of a optical cable link, a calibrated stable light must be transmitted at one end and the output power should be read at the receiving end. The two devices constitute an optical loss tester. When the light source and p
During the establishment and use of the LAN, users often encounter network failures due to hardware equipment faults. This article uses the specific fault examples and Q A methods, describes the causes and troubleshooting methods for faults of hardware devices (transport media, NICS, hubs, and switches) in the LAN.
I. Common Faults and troubleshooting of transmission media
1. Network Communication fails due to changes in line resistance
[Question]: A computer terminal that can communica
Embedded-WINKHUB edge channel attack (NAND Glitch)0x00 Preface
With the rapid development of IOT, research on the security of various embedded devices and routers is becoming increasingly popular. however, unlike previous software-only security research, this type of research often needs to combine the corresponding hardware knowledge. many friends are confused about how to start, and even stuck on the tool to be selected. therefore, Wang will share some practical cases and corresponding tools
pure resistance, the voltage direction and the current direction are the same, there will be no high potential of the current from the low potential.
1> identify the two
Set the three feet of the transistor to A, B, and C respectively, and place the pointer Multimeter in the 10 k ohm gear of the resistance gear. (1) Use a red table pen to connect a's foot, use a black table pen to contact B and C respectively. If the impedance between AB and C is sm
amount of data without bandwidth and interval requirements. It ensures transmission. Both printers and scanners use this transmission type.
Serial supplement: http://topic.csdn.net/u/20070508/16/5cb438ce-acf6-4089-9b20-696ab3cc8402.html
After reading it for half a day, I finally figured it out on my board and wrote it down:Thesaviour is correct: Do not cross the line according to your use!
1. There are: crossover and direct connection! Measure with A mult
. Otherwise, adjust the settings (the sights of the transmitter and receiver can be used ).② Use a wire-hanging hammer to test whether the transmitter and receiver are both vertical; otherwise, adjust the receiver.③ Open the housing of the transmitter and receiver, and check whether the red filter is mounted on the receiver optical component.④ Set the multimeter to the DC 10 or 20 V position and insert the measuring rod into the test hole of the recei
Today, we will perform the 3786demo board test by record the methods learned during the test as follows:
Changing the resistance is depressing today. I can't change it if I start to use iron. I can't change it if I use a wind gun instead. It's a joke, in fact, a small device, such as resistor and capacitor, can be used only by a referer.
Test whether the component is the one you need. For example, if you are sure to change the resistance size and are not sure whether the resistance meets the r
I thought that the motherboard seemed to have a com-lead accessory. So I found the motherboard specification, and the motherboard had a comport. I thought that since the USB comport is not good, maybe the motherboard can come with it, so I found a com lead in the accessories and opened the chassis to bring the comport to the rear panel of the chassis.
Connect to the com line, open putty, Boot, LINUX started, com still did not respond. At this time, a technical support on QQ reminded me that th
one with the threading clamp, but it is less efficient) to ensure good contact, as shown in. Then cut off the extra lines outside the module.
[Tips] Generally, the information module is marked with a color line sequence of TIA 568-a and TIA 568-b at the same time. It should be subject to the requirements of the wiring design, use the same line sequence as other connections and devices.Step 2: add the plastic dust-proof sheets of the information module to the twisted pair alon
So how to master the quality of these media to ensure unimpeded transmission of information, it is necessary to rely on cable testing equipment verification. In addition, in the cause of network failure, more than 90% of the fault is due to cable link problems, but these problems are not only visual or multimeter can be in the shortest possible time to check out. In the process of building the network, we must pay attention to the use of the normal ca
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