What is NOT mentioned in this unit as a way to keep physically healthy?

A . redundant infrastructure B . clustering of computer systems C . reduced MTBF D . continuous operation of computing system

A . Bandwidth that is reserved for SVCs to route over a trunk B . Bandwidth that is reserved on a trunk so that ABR connections can burst C . Bandwidth on a trunk that is reserved for control traffic and cannot be used by connections D . Bandwidth that cannot be allocated to connections but can be used to accommodate statistical variations in the traffic

A . The total end-to-end delay B . The variations of delay. C . The delay caused by placing the bits on the wire. D . The time it takes for the bits to transit the physical media.

A . Tag Calling Interface B . Tag Control Identifier C . ToS Class Interface D . Tag Control Informatio

A . Once created, a sequence belongs to a specific schema. B . Once created, a sequence is linked to a specific table. C . Once created, a sequence is automatically available to all users. D . Only the DBA can control which sequence is used by a certain table. E . Once created, a sequence is automatically used in all INSERT and UPDATE statements.

A . She is a typist B . She is talking to her friend C . She is having a holiday. D . She is my sister.

A . It is a famous bank. B . It is a big department store. C . It is a famous insurance company. D . It is a large hotel.

A .  redundant infrastructure B .  clustering of computer systems C .  reduced MTBF D .  continuous operation of computing system

A . An urgent message concerning a vessel in distress B . A weather advisory about unusual meteorological or oceanographic phenomena hazardous to vessels C . A broadcast disseminating an official government proclamation affecting shipping D . A radio navigational warning concerning a particularly hazardous condition affecting navigatio

A . A current at minimum flow B . A current coming in C . A current going out D . A current at maximum flow

A . A drainage pipe that carries rain or spray from an upper deck to a lower deck B . A pipe under the anchor windlass leading to the chain locker C . A chute，usually over the stern，to lead dumped garbage clear of the hull D . An opening in the deck leading outside the hull

A．November 9th, 2009 B．November 3rd, 2009 C．November 14th, 2009 D．November 15th, 2009

A.he is born with the capacity to speak B.he has a brain more complex than an animal’s C.he can produce his own sentences D.he owes his speech ability to good nursing