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What are two benefits of clustered access points on a small business network using the Cisco500 Series Access Point? ()
A . Cisco IOS configuration
B . tri-band 11g single radios
C . rouge AP integration
D . single view to deploy and manage
E . secure guest acce
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() are used to limit the pressure in any particular portion and mainly control the pressure after the valve.
A、Relief valves
B、Safety valves
C、Check valves
D、Reducing valves
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In the cylinder head of a two-stroke/cycle diesel engine, valves are used for()
A . air intake
B . a fuel outlet
C . cooling water inlets
D . exhausting combustion ga
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Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?()
A . Holding the valve open for a long period
B . Increasing the starting air pressure used
C . Opening the stating air valve quickly
D . Reducing the starting air valve size
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The emergency bilge suction valve is typically used ().
A . to inject cleaning additives when the bilges are extremely dirty
B . when the main condenser becomes fouled, in order to provide additional cooling water circulation
C . to connect the rose box to the independent bilge suction
D . if the bilges become flooded and they can not be emptied by any other mea
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Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?()
A . Pressure-reducing valve
B . Unloading valve
C . Counterbalance valve
D . Pressure-relief valve
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You are installing a Cisco 4402 Series Wireless LAN Controller. Which type of interface shouldyou use on the controller’s distribution port?()
A . 1000BASE-SX SFP
B . 10/100/1000 Mbps RJ45
C . 10/100 Mbps RJ45
D . 10000BASE-SX
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Which series of commands will configure router R1 for LAN-to-LAN communication with router R2? The enterprise network address is 192.1.1.0/24 and the routing protocol in use is RIP.()https://assets.asklib.com/images/image2/2018072315342863428.jpg
A . R1(config)# interface ethernet 0;R1(config-if)# ip address 192.1.1.129 255.255.255.192;R1(config-if)# no shutdown
B . R1(config)# interface ethernet 0;R1(config-if)# ip address 192.1.1.97 255.255.255.192;R1(config-if)# no shutdown
C . R1(config)# interface serial 0;R1(config-if)# ip address 192.1.1.4 255.255.255.252;R1(config-if)# clock rate 56000
D . R1(config)# interface serial 0;R1(config-if)# ip address 192.1.1.6 255.255.255.252;R1(config-if)# no shutdown
E . R1(config)# router rip;R1(config-router)# network 192.1.1.4;R1(config-router)# network 192.1.1.128
F . R1(config)# router rip;R1(config-router)# version 2;R1(config-router)# network 192.1.1.0
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Which of the valves listed should be used either in the fully opened or the fully closed position?()
A . A gate valve
B . A globe valve
C . Any check valve
D . Any needle valve
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A feeler or thermal bulb is used for the expansion valve to ().
A . detect the temperature
B . detect the pressure
C . heat the refrigerant
D . accelerate the refrigerant
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On the Catalyst 6500 Series switch, which command is used to establish a console connection to the Firewall Services Module?()
A . ssh
B . connect
C . login
D . sessio
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What voice endpoint is recommended for use with the Cisco Unified Communications 500 Series for small businesses?()
A . IP7961
B . IP8961
C . SPA504
D . SPA9000
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Which of the fuel injection systems listed uses a spring loaded differential spray needle valve and individual pump for each cylinder?()
A . Common-rail injection
B . Air injection
C . Jerk pump injection
D . Distribution injectio
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Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
A . double bottom fuel oil tank temperature
B . heater supply steam flow
C . pressure of the fuel supplied to the burners
D . attemperator steam flow in the heater discharge circuit
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Which type of software would the Cisco Catalyst 2950 Series switches use to deliver intelligent services to networks that require additional security, advanced QoS, and high availability?()
A . Enhanced Image
B . StandardImag
C . Cisco IOS software
D . Enhanced Multilayer Software Image
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Onboard USB 1.1 ports of the Cisco 800, 1800, 2800, and 3800 Series ISRs can be used to enable important security and storage capabilities.()
A . True
B . False
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When creating a role in a Cisco Nexus 7000 Series Switch, rules are used to define the type of operations that a role will allow the user to perform. Which two of these parameters cannot be applied as a rule? ()
A . port-profile
B . command
C . access-list
D . feature-group
E . OID
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The emergency bilge suction or bilge injection valve is used to prevent () of the ship.
A . proceeding
B . overloading
C . collision
D . flooding
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The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to ().
A . assist in a quick cutoff of fuel injection
B . allow oil backflow from the injector to the helix
C . reduce fuel oil pressure between injection strokes
D . meter the quantity of fuel delivered
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Which of the listed statements is a characteristic of the liquid charged power element used with thermostatic expansion valves?()
A . At the designed operating temperature, the liquid refrigerant charge has changed to a vapor
B . The liquid refrigerant tends to collect at the bellows or diaphragm and reduces the valve sensitivity
C . The sensing bulb is empty of liquid refrigerant charge at the designed operating temperature
D . The sensing bulb is never emptied of liquid refrigerant under normal operating conditio
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You are installing a Cisco 4402 Series Wireless LAN Controller. Which type of interface should you use on the controller’s distribution port?()
A . 1000BASE-SX SFP
B . 10/100/1000 Mbps RJ45
C . 10/100 Mbps RJ45
D . 10000BASE-SX
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For the ZXCTN6000 series devices of the version V1.10, which of the following protecti
A.A.steering
B.B.wrapping
C.C.1+1 LSP
D.D.1:1 LSP
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Specialisation can be seen as a response to the problem of an increasing accumulation of scientific knowledge. By splitting up the subject matter into smaller units, one man could continue to handle the information and use it as the basis for further research. But specialisation was only one of a series of related developments in science affecting the process of communication. Another was the growing professionalisation of scientific activity.
No clear-cut distinction can be drawn between professionals and amateurs in science: exceptions can be found to any rule. Nevertheless, the word "amateur" does carry a connotation that the person concerned is not fully integrated into the scientific community and, in particular, may not fully share its values. The growth of specialisation in the nineteenth century, with its consequent requirement of a longer, more complex training, implied greater problems for amateur participation in science. The trend was naturally most obvious in those areas of science based especially on a mathematical or laboratory training, and can be illustrated in terms of the development of geology in the United Kingdom.
A comparison of British geological publications over the last century and a half reveals not simply an increasing emphasis on the primacy of research, but also a changing definition of what constitutes an acceptable research paper. Thus, in the nineteenth century, local geological studies represented worthwhile research in their own right; but, in the twentieth century, local studies have increasingly become acceptable to professionals only if they incorporate and reflect on the wider geo logical picture. Amateurs, on the other hand, have continued to pursue local studies in the old way. The overall result has been to make entrance to professional geological journals harder for amateurs, a result that has been reinforced by the wide spread introduction of refereeing, first by national journals in the nineteenth century and then by several local geological journals in the twentieth century. As a logical consequence of this development, separate journals have now appeared aimed mainly towards either professional or amateur readership. A rather similar process of differentiation has led to professional geologists coming together nationally within one or two specific societies, whereas the amateurs have tended either to remain in local societies or to come together nationally in a different way.
Although the process of professionalisation and specialisation was already well under way in British geology during the nineteenth century, its full consequences were thus delayed until the twentieth century. In science generally, however, the nineteenth century must be reckoned as the crucial period for this change in the structure of science.
The growth speeialisation in the 19th century might be more clearly seen in sciences such as ______.
A.sociology and chemistry
B.physics and psychology
C.sociology and psychology
D.physics and chemistry
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When the relief valve is used as a constant pressure valve, it is connected to the outlet of the hydraulic pump to ensure that the outlet pressure of the hydraulic system (pump) is constant.
A:正确;
B:错误