Question 2: What is the safety of computer network equipment 5 points The safety of computer network equipment refers to: the safety of computer network equipment hardware. Including the network of computers, servers, switches, routers, hardware firewalls, power supplies, power supply equipment, fiber optic cables, optical transceivers, network wiring equipment. E-commerce security mainly includes: e-commerce network equipment security, network management security and business information security three major parts. Specific security specifications and requirements, please refer to the relevant professional books.
Question 3: What is the enterprise safety equipment, facilities Safety facilities
First, the meaning
Safety facilities, refers to the enterprise (unit) in the production and operation activities will be dangerous and harmful factors in the control of the safety range, as well as the prevention, reduction, elimination of hazards equipped with devices (equipment) and measures taken.
Second, the classification
Safety facilities are divided into accident prevention facilities, accident control facilities, facilities to reduce and eliminate the impact of accidents in three categories.
(a) accident prevention facilities
1. Detection, alarm facilities
(1) pressure, temperature, level, flow, components and other alarm facilities;
(2) combustible gases, toxic and hazardous gases, such as detection and alarm facilities;
(3) used for safety inspections and analysis of safety data and other inspection, detection and alarm facilities;
2.
2. Equipment safety protection facilities
(1) protective cover, protective screen, load limiter, stroke limiter, braking, speed limit, lightning, moisture, sun, frost, corrosion, leakage and other facilities;
(2) drive equipment safety locking facilities;
(3) electrical overload protection facilities;
(4) electrostatic grounding facilities;
(4) the static electricity grounding facilities;
3.
3. explosion-proof facilities
(1) a variety of electrical, instrumentation explosion-proof facilities;
(2) explosion-proof equipment, explosion-proof appliances;
4. workplace protection facilities
The workplace radiation, electrocution, anti-static, anti-noise, ventilation (dust removal, detoxification), protective barriers (nets), non-slip, anti-scorching and other facilities.
5. Safety warning signs
(1) Including a variety of instructions, warnings, operational safety and escape shelter and wind direction and other warning signs, warning signs, warning instructions.
(2) The factory road traffic signs.
(b) Control accident facilities
1. Pressure relief and non-return facilities
(1) for pressure relief valves, rupture discs, vent pipes and other facilities;
(2) for the stopping of reversal of the valve facilities.
2. Emergency facilities
(1) emergency backup power, emergency cut-off and other facilities;
(2) emergency stop, instrumentation chain and other facilities.
(C) reduce and eliminate the impact of the accident facilities
1. Prevent the spread of fire facilities
(1) firestop, fire escape, explosion-proof walls, explosion-proof doors and other explosion-proof facilities;
(2) firewalls, fire doors, and other facilities;
(3) fire-resistant material coating.
2. Fire-fighting facilities: fire extinguishers, fire hydrants, high-pressure water guns, fire trucks, fire hose networks, fire stations and so on.
3. Emergency disposal facilities: eyewash, sprinkler, emergency lighting and other facilities.
4. Escape facilities: escape safety channel (ladder).
5. Emergency rescue facilities: leakage plugging, engineering rescue equipment and on-site medical rescue equipment for injured personnel.
6. Labor protective equipment
Including the head, face, vision, respiration, hearing organs, limbs, body fire, poison, scalding, corrosion, noise, light, fall, smashing, stabbing, etc. from the workplace from physical and chemical factors of injury to the labor protective equipment and equipment.
Question 4: What is included in the safety equipment You have to first understand: the definition of safety facilities and safety equipment;
Safety facilities refers to the permanent smooth safety devices, such as lightning rods, lightning nets, fire pipelines, fire hydrants, flood control levees, and other series.
Safety equipment refers to equipment for safe production: such as fire engines, lightning arresters, pumps, cranes, tower cranes, lifting equipment, safe work equipment and other series.
Living configured safety equipment: electrical protectors, safety lighting facilities, etc..
Question 5: What kind of storage equipment has the highest safety? Safety is only a relative concept, the data itself is not absolutely safe, what we can do is the amount of energy to make the method at hand to make the data control within the safety of their own affordable.
First of all, the card, and the U disk and other bulk storage, because they are very easy to break, and there is no good way to repair them.
Secondly, the CD-ROM, CD-ROM as a storage medium has not been eliminated as a big reason for long-term storage, simply put is a CD-ROM put there, a few years can not be bad, but the other media, if not used for a long time, it is easy to be bad, for example, some of the computers you put there for several months do not turn on the computer, and also do not care, and then turn on the computer to find that you can not get into the system, or some other problems.
Then we come back to talk about, mechanical hard disk and solid state hard disk problem, the traditional mechanical hard disk, needless to say, if you work for a long time outside, the mechanical hard disk to take everywhere, is very easy to bad, because the mechanical hard disk of the seismicity of the relatively poor, even if it is the seismicity of the best Western Digital black disk is not an exception, and then only ssd, ssd's most important feature is the good shock, not afraid of falling, high temperature, and so on some of the features are good, not afraid of the shock. The biggest feature of ssd is good shock resistance, not afraid of falling, high temperature resistance, and so on some mechanical hard disk do not even dare to think of the characteristics, but ssd also has his shortcomings, for example, once broken, the data is not easy to retrieve, and then one is the price is high, and now the 1t of the ordinary 2.5-inch hard disk is less than 300, while the 300 can only buy a non-tier-one brand, the capacity of the SSD of 120g -128g.
Finally summarized, there is no such storage media is absolutely safe, all we can do is in the case of backup, out of their mobile storage devices to go out and do things, in case of problems with mobile storage devices, there are still computers in the home, in addition to the cloud disk is not recommended, the cloud disk can only do the general data transit, if it is the company's confidential file strength to avoid to the cloud disk to throw.
Question six: site equipment and safety facilities four necessary to have the inspection content is what site hazards should include regular inspection of the workplace buildings are safe, safe passage is smooth, whether the storage of parts and components is organized, a variety of machinery and equipment arrangement and guards, insurance devices, signaling devices are intact, the safety of the electrical equipment, acetylene generator, a variety of cylinders and pressure vessels, chemical supplies, the use of management is strict, the use of the equipment is not a good idea. The safety facilities of electrical equipment, acetylene generator, various gas cylinders and pressure vessels, the use of chemical supplies management is strictly abide by the system, the lighting facilities in the workshop, toxic and hazardous substances protection facilities, the labor conditions of workers, the corresponding safety signs set up in a complete; often check the production site and the surrounding environment whether there is a change, whether there are unsafe factors, whether there is a disease in the operation of the production equipment. Through careful and meticulous inspection to eliminate the unsafe state of things.
Question 7: What is the national standard for the safe use of electrical equipment? This has a 2009, there is a 2004, but the 2004 is almost obsolete, I suggest you still use the 2009 it! Standard No.: GB 19517-2009 Standard Name: National Electrical Equipment Safety Technical Specification Standard
Question 8: What are the common network security devices Network from the outside to the inside: from the fiber ----> computer client
The devices in order: routers (can do port shielding, bandwidth management qos, anti-flood flood attacks, etc.) ---- --- Firewall (there are ordinary firewalls and UTM, etc., can do network three-layer port management, IPS (intrusion detection), IDP (Intrusion Detection and Prevention), security audit authentication, anti-virus, anti-spam and virus mail, traffic monitoring (QOS), etc.) -------- Behavioral Manager (UTM can be done to do all the functions, as well as some of the full auditing, network logging and so on functions, this More powerful) -------- core switch (can be divided vlan, shielding broadcast, and the basic acl list)
Secure network connection: now popular MPLS VPN, SDH leased line, VPN, etc., of which VPN common including (SSL VPN \ ipsec VPN&\ 92; PPTP VPN, etc.)
Question 9: What are the basic requirements for the safe working of electrical equipment Effective insulation, operate according to the prescribed instructions
Question 10: Network equipment safety configuration table What does it mean Network management Network management involves the use, synthesis and coordination of hardware, software and human resources in order to monitor, test, configure, analyze, evaluate and control the network resources so that they can be used to meet the needs of the network at a reasonable price to meet some of the needs of the network, such as real-time operational performance, quality of service, and so on. Network management is often referred to as network management.