A frame with two，or sometimes four，arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the（）...

第1题

[多选题] What are two characteristics of "store and forward" switching?（）

A、Latency fluctuates regardless of frame size. B、The switch receives the complete frame before beginning to forward it. C、Latency through the switch varies with frame length. D、The switch checks the destination address upon receipt of headers.

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第2题

[单选题] All fog signals shall be sounded every two minutes with the exception of a vessel（）.

A、underway or making way B、under sail or under tow C、anchored or aground D、not under command or restricted in her ability to maneuver

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第3题

[单选题] Some large A-Cmotors are equipped with heatersThese could be （） (1)resistance heaters bolted directly to the frame (2)low voltage windings embedded in the motor windings

A、(1) only B、(2) only C、either (1) or (2) D、neither (1) or (2)

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第4题

[单选题] A customer wants to expand their current storage environment, but has floor space for only two machine frames or two racks. Their environment consists of IBM SAN Volume Controllers and IBM DS4000 systems. The DS4000 systems are at end of lease. The customer wants the maximum number of disks possible in two frames. Which of the following solutions is best for this customer?（）

A、add one SVC B、install one DS8700 C、install one DS8800 D、install one XIV system

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第5题

[单选题] A customer would like to implement an IBM System Storage DS8000 solution that requires 225 TB raw capacity. They are convinced that 450 GB is the optimum size for their business applications. There is limited space available for additional machines in the data center. Which solution meets best this requirement（）

A、DS8700 system with three frames B、DS8800 system with threeframe C、DS8700 system with two frames D、DS8800 system with two frames

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第6题

[单选题] On navigational aids，what does the light characteristic Fl(2+1) mean?（）

A、A flashing light combined with a fixed light of greater brightness B、Light flashes combined in groups，with a different number of flashes in each group C、A light showing groups of two or more flashes at regular intervals D、A fixed light varied at regular intervals by groups of two or more flashes of greater brightness

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第7题

[多选题] Ten routers, R1 through R10, connect in a partial mesh over Frame Relay. For the mesh, R1 and R2 have PVCs connected to all other routers, but Routers R3 through R10 act as branch routers, with only two PVCs - one to R1 and one to R2. The routers u se IP subnet 10.1.1.0/24, with addresses 10.1.1.1, 10.1.1.2, and so on, through 10.1.1.10, respectively. The routers all use Inverse ARP to learn Frame Relay mapping information. All routers use a multipoint subinterface with network type point - tomultip oint nonbroadcast. A co - worker's implementation plan lists lots of configuration commands related to this design. The design states that all hosts should be able to ping all other hosts. Which commands are required for proper functioning of OSPF in this case?（）

A、frame - relay map commands on R3 - R10 referencing the other routers in this group B、Nine OSPF neighbor commands on each router C、Nine OSPF neighbor commands on R1 and R2, with only two such commands on R3 - R10 D、R1 and R2 with ip ospf prio rity 1 commands to ensure they become DR and BDR E、R3 - R10 with ip ospf priority 0 commands to ensure they do not become DR or BDR

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第8题

[单选题] Transverse frames are more widely spaced on a ship that is designed with the（）.

A、centerline system of framing B、isometric system of framing C、longitudinal system of framing D、transverse system of framing

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第9题

[单选题] A recently ordered server came standard with one 3.0GHz processor. It is capable of handling fourtotal processors. Which of the following processor combinations can be used in this server？（）

A、 One， two， three or four processors B、 One， two， or three processors C、 One， three， or four processors D、 One， two or four processors

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A frame with two，or sometimes four，arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the（）.

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