Consultant of soft examination Information System, April 15, 2016 operation

Consultant of soft examination Information System, April 15, 2016 operation

The 16th chapter, the supervision of information Network system design stage

1, the design stage of the supervision work mainly include what content?

1) Combine the characteristics of information engineering project to collect the technical and economic information needed for the design;

2) cooperate with the design Unit on the technical and economic analysis of the project design and optimize the design;

3) Assist the owner to review the design documents;

4) Participate in the selection of major equipment and materials;

5) The main equipment and materials list of the audit program;

6) Audit system design plan and other detailed design documents;

7) Organize the approval of the design documents;

8) The IPR protection supervision on the content of the program design;

9) Audit the information security measures in the technical program;

10) Assist the owner to analyze and discuss the overall objectives of the construction cycle;

11) Review the overall project progress plan prepared by the contractor and control its execution during the implementation of the project. If the contract is in conflict, the contractor should be urged to adjust the project schedule;

12) Review the schedule of each sub-project stage prepared by the contractor, and supervise the contractor to adjust the schedule in time according to the changes in the actual environment;

13) Review the engineering design and the contractor's equipment/materials list and procurement plan, and check and supervise its implementation.

2, what is the core switch, the aggregation layer switch, the access layer switch?

1) The core switch, which is placed on the core layer (Network Backbone section) of the switch, can be said to be the gateway of the switch, through high-speed forwarding communication, to provide an optimized, reliable backbone transmission structure, so scalability, port scalability, trunking loan can be

scalability, to provide a variety of scalable network services, network reliability.

2) The aggregation layer switch is the aggregation point of multiple access layer switches, it must be able to handle all traffic from the Access layer device and provide uplink to the core layer, so the aggregation layer switch and the access layer switch, the need for higher performance, more

Fewer interfaces and higher switching rates;

3) Access layer switch, generally used for direct connection to the computer, the access layer is designed to allow end users to connect to the network, so the access layer switch has low cost and high port density characteristics. The access switch is the most common switch that is directly connected to the extranet, making

Most widely used, modern access switches mostly offer multiple ports with 10m/100m/1000m adaptive capability.

3, understand the function of the firewall, vulnerability scanning system function, the function of the gateway (do not write, read more than three, so familiar)

4. What are the functions of intrusion detection system? Remember

1) When the intrusion event is detected, automatic execution of the disconnection service, recording the intrusion process, mail alarm and other actions;

2) Support the centralized release of attack feature information and distributed upload of attack forensics information;

3) provide a variety of ways to monitor engine and detection characteristics of the regular update service;

4) built-in network usage monitoring tools and network monitoring tools.

5, room computer equipment should use zoning layout, generally including which areas? Remember

Host area, memory area, data input area, data output area, communication area and monitoring dispatch area.

6. What are the requirements for the distance between the channel and equipment in the host room? (Key figures)

1) The distance between the two relative cabinet faces should not be less than 1.5 meters;

2) Cabinet side (or no face) from the wall should not be less than 0.5 meters, when the need for maintenance testing, the cabinet should not be less than 1.2 meters away from the wall;

3) Aisle net width should not be less than 1.2 meters.

7, the room lighting general use what light? What are the requirements of illuminance respectively?

Glare-free multi-barrier lamp;

The main room illuminance is not less than 300LUX, the auxiliary room is not less than 200LUX, fault illumination is not less than 60LUX, room lighting should have switch control, in line with the relevant electrical design and construction norms.

8. What power supply should be used in the engine room system?

Dual-loop power supply, and select three-phase five-wire power supply.

9, the room should be used which four kinds of grounding method?

1) AC work grounding, grounding resistance should not be greater than 4 Ω;

2) Safe working ground, grounding resistance should not be greater than 4 Ω;

3) DC working grounding, grounding resistance should be determined according to the specific requirements of computer system;

4) Lightning protection grounding, according to the current national standard "Building Lightning Protection Design Code" implementation.

10, power on the main room temperature, humidity should be performed a class, a-level what indicators?

Temperature, summer, 23±2℃, Winter, 20±2℃;

Relative humidity, 45%~65%;

The temperature change rate is <5℃/h and must not be condensation.

11. What are the requirements for fire alarm and fire extinguishing system in engine room?

1) room should be set fire automatic alarm system, host room, basic workshop should be set halon fire extinguishing system, and should be carried out according to the requirements of the relevant norms;

2) where the installation of the halon fixed fire extinguishing system and fire detectors of the computer room, the ceiling of the upper, lower and movable floor under, should be set detectors and nozzles.

12. What are the six parts of the integrated Cabling System (note)? What is the composition of each of the six parts?

1) Workstation subsystem, horizontal routing subsystem, inter-management subsystem, vertical trunk subsystem, inter-equipment subsystem, and complex subsystem;

2) The workstation subsystem design, composed by the user computer, voice point, data point information socket, jumper, it includes information socket, information module, network card and connection required jumper;

The horizontal trunk subsystem, which involves the integration of the transmission medium and components of the horizontal subsystem;

Inter-management subsystem equipment, cabinets, hubs or switches, RJ45 wiring rack, voice point S110 hardware, cable distribution rack, voltage regulator power line;

The vertical trunk subsystem comprises a vertical or transverse channel for the cable route between the main lines in the management, from the main equipment to the backbone cable between the management;

Inter-device subsystem has servers, switches, routers, voltage-stabilized power supplies and other equipment;

complex subsystem, connecting the transmission medium of each building and various supporting equipment constitute a complex cabling system.

13. What are the design points of the working area subsystem? (recorded numbers)

1) The work area inside the groove to be cloth reasonable, beautiful;

2) The information base should be designed at a distance of 30cm above the ground;

3) The distance between the information base and the computer equipment is kept within the 5m range;

4) The interface of the type of NIC to be purchased is consistent with the cable type interface;

5) The number of information modules, information blocks and panels required for all work areas;

6) The quantity required for RJ45;

7) The basic link length is limited to 90m and the channel length is within 100 meters.

14. What is the calculation formula for the demand of RJ45 joints? What is the demand calculation formula for the information module? Remember

Demand for RJ45: M = nx4 + nx4x15%

M is the total demand for RJ45

n is the total amount of information points

nx4x15% for the remaining amount of surplus

Demand for information modules: M = n + nx3%

M is the total demand for the information module

n is the total amount of information points

nx3% for the amount of surplus

15, what is the calculation formula of the cable? (The total length of the order, the number of wire boxes) (recorded)

Length of Cable:

Order Total (total length m) = Total required length + total required length x10% + nx6

Required total length refers to the theoretical length required for the N-Wire cabling

The required total length x10% is the spare part

nx6 for end-of-connection tolerances

Number of wire boxes = total length/305 +1

Twisted pair length of 305m per box

16, in the design of the horizontal subsystem, the way the pipeline includes: direct buried pipe type, what and what?

1) direct buried pipe type;

2) First go to the line trough again in charge of the way, that is, the ceiling inside the trough, and then go to the pipeline information export way;

3) Ground-line groove mode, suitable for large bay and after partition.

17, the fiber optic cable need to turn, the radius of curvature requirements? What about the coaxial coarse cable? Coaxial thin cable?

The radius of curvature of optical cable cannot be less than 30cm.

The radius of curvature of rough coaxial cable should not be less than 30cm.

The curvature radius of the coaxial thin cable should not be less than 20cm.

18, inter-device subsystem, the space between the device height how much? Door height Wide? How much is the floor bearing pressure? (recorded numbers)

Space height between devices 2.55m;

Door height 2.1m;

Width 90cm;

Floor bearing pressure can not be less than 500kg/㎡.

19, the building system subsystem, overhead wiring of the line distance not more than how many meters? Antenna bracket should not be higher than the roof how many millimeters? How many millimeters should the net space of the sky-line entrance bar be above the roof?

The input line distance of overhead wiring is not more than 30m;

The antenna bracket should not be higher than the roof 1200mm;

The sky-line entrance lever is higher than the net space of the roof 2400mm.

20. What are the indicators of twisted pair? Remember

1) attenuation, 2) near-end crosstalk, 3) return loss, 4) ACR, the ratio of link attenuation to near-end crosstalk attenuation in the integrated Cabling System, 5) DC loop resistance, and 6) propagation delay.

21. What are the indicators of optical cable? Remember

1) wavelength window; 2) attenuation; 3) minimum optical mode bandwidth of multimode fiber, 4) optical return loss.

22, the buried pipeline routing should be based on a straight line, not select curved route, such as must bend, the radius of curvature should not be less than the diameter of the pipe several times? If the outer diameter of the tube is greater than 50MM, the radius of curvature should not be less than the diameter of the pipe several times? Angle of angle of turn

degree should not be less than how many degrees? What should I do if I have 2 bends? What if the length of the curved pipe is longer than 20M?

1) The routing of the Buried pipeline should be based on straight line, not select the curved route, such as must bend, the radius of curvature should not be less than 6 times times the diameter of the tube;

2) If the outer diameter of the tube is greater than 50mm, the radius of curvature should not be less than 10 times times the outer diameter of the tube;

3) Corner angle should not be less than 90 degrees, and should not have more than two bending;

4) If there are two bends, should try to place the bend at both ends of the elbow paragraph, and require that the length of the paragraph shall not exceed 15m, at the same time requires that the paragraph must not have S-shaped bends or u-shaped bends;

5) If the length of the curved tube exceeds 20m, the connector box (connector box or over-box) should be mounted in the paragraph.

The 17th chapter, the supervision of the implementation stage of information network system construction

1. What are the contents of supervision before commencement? Remember

1) Review the implementation plan;

2) Audit the implementation of the Organization plan;

3) Audit implementation Progress plan;

4) Audit The project implementation personnel, the contractor qualification.

2, network engineering supervision of the main work?

1) Organize cabling, network and security system design review;

2) Check the wiring construction and wiring test situation;

3) to carry out the supervision verification test of cabling system;

4) network hardware equipment and supporting software supervision confirmation test.

3, integrated testing supervision of the main work?

1) Review the project acceptance outline and each subsystem test report;

2) Review all types of documents to be delivered by the contractor;

3) The integration test of the organization computer system and network systems;

4) The connectivity test of the organization network system;

5) Organization of software system integration testing.

4, equipment procurement supervision of the focus?

1) Whether the equipment is in accordance with the equipment (System) specifications stipulated in the Bill of quantities;

2) Whether the equipment is in accordance with the equipment (System) list stipulated in the contract;

3) Equipment certification, specifications, supplier assurance and other supporting documents are complete;

4) The equipment system shall be delivered on time in accordance with the contract;

5) Whether the supporting software package (System) is mature and meets the specification.

5. What is the process of equipment purchasing supervision?

1) The Contractor shall notify the owner and supervisor of the equipment arrival time and place three days in advance and submit the delivery list;

2) The supervising party assists the owner to prepare the equipment arrival acceptance;

3) The supervision side assists the owner to carry on the equipment acceptance, and completes the record, including to the specification, the quantity, the quality carries on the verification, as well as examines the certificate of conformity, the factory certificate, the supplier guarantee and the stipulation need all kinds of attestation document is complete, uses the test tool when necessary to enter

Assessment and testing, to assess whether the above equipment can meet the needs of information network construction;

4) found shortages or breakage, require equipment provider replacement or free replacement;

5) Submit the equipment arrival Acceptance Supervision report.

6. What are the four key points in the construction supervision of the computer room project?

1) Review the contractor's project implementation organization plan, especially to examine whether there are measures to ensure the quality of construction;

2) control the qualifications of the construction personnel, adhere to the certificate;

3) conscientiously implement the "Building Intelligent Systems engineering implementation and acceptance of the Code", timely detection and correction of violations of the norms of practice;

4) in-depth on-site implementation of "Follow-up with the test" requirements to ensure the quality of construction, speed up the construction progress.

7, from the technical control of the content, supervision engineers need to put the good San Guan, San Guan is what?

1) to the cable, device quality off, no certification, quality assurance and performance Test road standard cable, device, never allowed to use;

2) to put a good pipe, threading tube, prevent plugging, short-term problems occur;

3) To install the good device off.

8, the room environment to meet the requirements, such as: floor load capacity (remember), the surface resistance (remember), the cabinet before and after the left at least how much?

1) The floor load weight must be greater than 500kg/㎡;

2) The surface resistance should be greater than 0.5 ω;

3) The front and rear of the cabinet at least each left 75cm, the recommended value is 90cm.

9, for the hidden engineering, metal trunking installation, pipe installation, pipe threading supervision of the matters of attention (do not write, read aloud 3 times)

10, LAN cabling System test content mainly include Which? Remember

1) connectivity between the workplace and the equipment;

2) main trunk connectivity;

3) jumper test;

4) information transmission speed, attenuation, distance, wiring diagram, near-end crosstalk and so on.

11. What are the main contents of UTP link test? (in 13 names, remember at least four or more)

1) wiring diagram; 2) Link length 3) Attenuation 4) near-end crosstalk NEXT loss (near-end Crosstalk Loss) 5) connection length 6) attenuation amount 7) near-end Crosstalk (NEXT), 8) SRL (Structural Return Loss) ; 9) equivalent

Remote crosstalk (Elfext Equal level Fext), 10) Integrated remote crosstalk (Power Sum elfext), 11) return loss (return Loss), 12) characteristic impedance (CHARACTERISTLC impedance) ; 13) attenuation crosstalk ratio (ACB)

。

12. What are the four types of optical cable testing? What are the tools for testing? Remember

1) connectivity test; a light source;

2) End-to-end loss testing; a power meter and a light source;

3) Transmit and receive power test, light power tester and a section jump connection;

4) Loss/attenuation test. Optical loss tester/optical Power meter (OLTS/OPM).

13, the network system debugging and installation is divided into which four steps?

1) detailed logical design of network system;

2) all network equipment appliance test;

3) Simulation of network debugging and connectivity testing;

4) Actual network installation and commissioning.

14. What are the contents of the power-on test?

1) Equipment self-test;

2) software health detection under Default configuration.

15, the supervision of the host system to install the test when the attention to what matters?

1) If the chassis is damaged;

2) memory, hard disk can run normally;

3) display whether the display is normal;

4) Whether the system power is working properly.

16. What precautions should be taken when installing and testing the software system by the supervisor?

1) Whether the software system and the host system match;

2) The software can be installed properly;

3) Whether the software function can be realized;

4) software information is complete.

The 18th chapter, the supervision of the Information Network system acceptance stage

1. What are the prerequisites for acceptance? Remember

1) All construction projects are completed according to the approved design plan, and meet the requirements of use;

2) All the sub-projects are qualified for initial inspection;

3) A variety of technical documents and acceptance of complete information, in line with the contents of the integration contract;

4) system construction and data processing meet the requirements of information security;

5) Outsourcing of operating systems, databases, middleware, application software and development tools in line with the requirements of IP-related policies and regulations;

6) A variety of equipment by the power test operation, the state is normal;

7) after user consent.

2. What are the eight steps in the general procedure of formal acceptance?

1) The Contractor shall report on the construction of the project, the situation of self-inspection and completion;

2) The supervision party makes the report about the project supervision content, the supervision situation and the project completion opinion;

3) on-site inspection of all personnel of the acceptance team;

4) The Acceptance team conducts a sample review of key issues (e.g. test reports) and data reviews;

5) The Acceptance team evaluates the project comprehensively and gives the result of the appraisal;

6) Carry on the engineering quality grade appraisal;

7) Handling the transfer of acceptance data;

8) Handle the project transfer formalities.

3, the contractor should be in the training program clear (), to ensure the normal maintenance of the system. Remember

The Contractor shall specify the training time, training quality, training location, number of training and performance, and ensure the normal maintenance of the system in the training program.

4, in the Information network system acceptance stage, the supervision needs to review what content?

1) Overall function and performance of the system;

2) The function and performance of the main equipment (or subsystem);

3) The type and content of the documents submitted by the contractor;

4) The system design, development, implementation, testing all the stages involved in the tools and equipment have legitimate intellectual property rights;

5) The contractor's quality assurance and after-sales service system;

6) The Contractor shall take the necessary management and engineering measures to facilitate the expansion and upgrading of the system.

5, network equipment and TCP/IP network detection is the main consideration of the technical indicators (note), respectively, four nouns to explain.

1) throughput; On each pair of ports, the transmission stream is produced at the full line speed (or the rate specified in the test setup) within the time specified in the test setup. If any of the ports are dropped, reduce the load by 50% and start the test again, then search with a binary

The maximum rate at which a packet loss occurs without a search method. This is the rate at which the throughput of the device being tested is;

2) packet loss; The test shows the performance of the system in a high-load state by measuring the proportion of packets that are not forwarded due to a lack of resources, producing 100% of the load within a specified time (or by the proportion specified in the test setup). At the end of the test, each pair of ports is reported

The percentage of packets that should be forwarded but discarded.

3) delay; For a storage-and-forwarding device, the delay is the time interval between the last bit of the input frame reaching the input port and the moment the first bit of the output frame appears on the output port. For a pass-through device, the delay refers to the input frame from the

The time at which a bit reaches the input port and the first bit of the output frame appears on the output port;

4) back-to-back performance. Test the buffer capacity by sending a burst stream at the maximum frame rate and measuring the maximum burst (burst) Length (total packet count) when no packet loss occurs. Generate burst stream at full load, if all packets are transferred

Increase the burst length and test again. However, if packet loss occurs on a pair of ports, the burst length is halved and tested here. Then, a binary search method is used to find the maximum burst length without packet loss. In the test settings

Each package length specified is tested back-to-back.

6, in the installation of equipment acceptance, cabinet, rack installation requirements?

1) when the cabinet and rack are installed, the vertical deviation should not be less than 3mm. Cabinet, rack installation location should meet the design requirements;

2) cabinet, the various parts of the rack must not fall off and touch bad, paint, such as peeling off should be complementary paint, all kinds of signs should be complete, clear;

3) cabinet, rack installation should be strong, if there is seismic requirements, should be in accordance with the construction drawings of the seismic design to strengthen.

7. What are the tools for testing and acceptance of network system? (Remember the name of any 2)

1) System Resource management tool server Vantage;

2) Network application Performance management tool networks Vantage;

3) Network Application Performance analysis tool application Ecpert V8.5;

4) Network Performance Analysis test tool smartbits 6000B;

5) Site Quality analysis tool WebCheck V5.0;

6) Micromapper cable line sequence tester;

7) Multi-Protocol network discrete Simulation tool NS-2;

8) DSP-4000 Digital Cable Analyzer;

9) Optifiber cable authentication Analyzer;

Ten) OPNET.

8. What is the basis for the acceptance of the information network system, and what is the main verification?

The acceptance of information network system should be based on the overall design of network system,

The main verification of the overall performance of the system and the main equipment performance.

Consultant of soft examination Information System, April 15, 2016 operation