（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

The （） is used for hauling in or letting out the wires or ropes.

For each blank，choose the best answer from the four choices and write down on the answer sheet．(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group．(67) is an error detection code that most data communication networks use．(68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information．(69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non -periodic basis over a range of media.(70) is an identifier of a web page.

Jitter is an unwanted variation of one or more characteristics of a periodic signal in electronics and telecommunications and（）refers to call issues that cause variations in timing or time of arrival.

When used in conjunction with a turbocharger, the main function of an after-cooler is to （）

（ ）estimating is a technique for estimating the duration or cost of an activity ou project using historical data from a similar activity or project.

The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to（）.

All computers need some sort of(71)(OS). Tile majority of modem home computers use some form. of Microsofts OS. The original Microsoft OS was called DOS though most computers use Windows. Windows comes in various versions beginning with(72)x then 95, 98, ME and currently XP. A few computers use IBMs O/SApples Mac uses their own OS beginning with OS I though most modem Macs use version x or x. Apples latest version is OS 10.x. In the past large companies and institutions would have an OS design exclusively for them but as the Commercial OS become more sophisticated the benefits of this practice is becoming less apparent. Some computer professionals,(73)(ISP)and(74)computer users use an OS such as UNIX(or a variant such as Linux), Windows NT or 2000(Win2k)or one of the other network or(75)based OS.

A customer is looking to build a virtual desktop infrastructure on an IBM platform. What metrics will be most useful in determining the storage platform recommendation?（）

An additive used to improve the ability of a lube oil to reduce friction is known as a/an