What is a function of the wearing rings used in most centrifugal pumps?（）

A . The associated JFS2 log device has failed. Check the log device and varyon the device. B . The logical volume that hosts the snapshots is full. Increase the size of the logical volume. C . Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existing snapshot. D . The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.

A . DLPAR functions are not available for cloned partitions B . The new partition has the same node number as the original LPAR C . Additional filesets need to be reinstalled after the alt_disk_install cloning D . The speed and duplex settings on the Ethernet adapter on the new LPAR is misconfigured

A . synchronizes FIFO， PQ， CQ， and MDRR， with WFQ， CBWFQ， and LLQ B . enables strict priority queuing for voice traffic， and weighted round robin queuing for data traffic C . enables low latency queuing to ensure that voice traffic receives priority treatment D . enforces a trust boundary on switch access ports and uplinks/downlinks  E . modifies queue sizes as well as queue weights where required  F . adjusts link speeds to adapt to QoS need

A . receive shore-to-ship distress alerting B . transmit ship-to-shore distress alerting C . receive message for public correspondence D . transmit and receive locating signal

A .  The interface is shut down B .  An access list is denying ICMP C .  Routing is not configured properly D .  vip icmp-reply is inactive

A . Receives saturated steam from the generating tubes B . Serves as a reservoir of boiler feed water C . Holds internal fittings for separation of moisture from steam D . Collects steam exhausted from the turbine

A . receive shore-to-ship distress alerting B . transmit ship-to-shore distress alerting C . receive message for public correspondence D . transmit and receive locating signal

A . To add power to the engine B . To keep the engine firmly attached to its supporting base C . To keep moving engine part in their proper relative positions D . To rotate the crankshaft

A . It creates a VLAN 999 interface. B . It designates VLAN 999 for untagged traffic. C . It blocks VLAN 999 traffic from passing on the trunk. D . It designates VLAN 999 as the default for all unknown tagged traffic.

A . Provides air for engine combustion B . Pressurizes water spray system C . Provides air for passenger respiration D . Prevents smoke and other noxious fumes from entering craft

A . Prevents lateral movement of the slow speed gear B . Transmits propeller thrust to the hull C . Keeps spring bearings in line D . Prevents main reduction gear axial movement

A . manages the CRS Server   B . creates CRS Engine reports   C . creates application scripts for call flows   D . remotely manages the LDAP Directory &e

A . To direct the operation B . To help the market development, operation and management C . To guide the mobile equipment, like truck and ship D . To speed up the process

A．585 feet. B．1,300 feet. C．Sea level.

A．Production and distribution of goods and services B．Providing a means of payment and facilitating the saving and investment process C．Directing the flow of goods and services from producer to consumer D．None of the above

A．Asking Swichen King's authorization for the purchase of a microwave oven. B．Reporting the survey result of buying a microwave oven to the general manager. C．Analyzing the necessity of buying a microwave oven for the staff. D．Introducing the suitable models of microwave oven to Swichen King.

A．To prove that all the day's transactions have gone through for the right amounts. B．To prove that they have all been posted to the right accounts. C．To prove that the fresh balances of those accounts are correct after recording the transaction. D．To try to prove the three things mentioned above.

A．They provide guides for the managers. B．They are policy choices for the managers. C．They lead to the increase in production. D．They determine the profits of a business.

A.To write version files running in current memory into flash. B.To write configuration files running in current memory into flash. C.To write current nvram system parameters into nvram. D.To write configuration files running in current memory into flash; and to write current nvram system parameters into nvram.