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he system administrator is making system wide changes to a server， which will add to the PATH variable for the server environment. Where is the PATH variable found for the system？（）
- A、/profile
- B、/etc/envpath
- C、/etc/profile
- D、/etc/environment
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更多 “ he system administrator is making system wide changes to a server， which will add to the PATH variable for the server environment. Where is the PATH variable found for the system？（）A、/profileB、/etc/envpathC、/etc/profileD、/etc/environment” 相关考题
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He ________ a system to put Chinese characters into computers.
A. arrangedB. droppedC. protestedD. devised
考题
In Changsha, although there is a good public transport system,()private car is still becoming() popular means of transportation.
A、不填; theB、he; aC、the; theD、a; 不填
考题
The computer system broke out suddenly while he was searching for ination on the Internet.()
此题为判断题(对，错)。
考题
A redaction policy was added to the SAL column of the SCOTT.EMP table:All users have their default set of system privileges.For which three situations will data not be redacted?()
A. SYS sessions, regardless of the roles that are set in the sessionB. SYSTEM sessions, regardless of the roles that are set in the sessionC. SCOTT sessions, only if the MGR role is set in the sessionD. SCOTT sessions, only if the MGR role is granted to SCOTTE. SCOTT sessions, because he is the owner of the tableF. SYSTEM session, only if the MGR role is set in the session
考题
When the author says“a new way of being”(1ine 3，para 3)，he is referring toA．a new approach to experiencing the worldB．a new way of taking risksC．a new method of perceiving ourselvesD．a new system of adapting to change
考题
You are signing on a deck officer，who will be designated as one of the GMDSS operators，before sailing foreign．Which statement is TRUE ________．A.He/she must have an STCW certificate endorsed as“Valid for Service on Vessels Operating in the GMDSS System”B.He/she must present either an FCC-issued license or a Coast Guard-issued licenseC.You must consult the“List of Qualifications”on the reverse of his/her FCC-issued licenseD.His/her Merchant Mariners Document must have an added endorsement as “Radio Electronics Officer”
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共用题干
第三篇Pool WatchSwimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble.A report says that on average 15 people drown in British pools each year,but many more suffer major injury after getting into difficulties.Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning.When a swimmer sinks towards the bottom of the pool,the new system sends an alarm signal to a poolside monitoring station and a lifeguard's pager（呼机）.In trials at a pool in Ancenis,near Nantes,it saved a life within just a few months,says Alistair McQuade,a spokesman for its maker,Poseidon Technologies.Poseidon keeps watch through a network of underwater and overhead video cameras. Al software analyses the images to work out swimmers' trajectories（轨迹）.To do this reliably,it has to tell the difference between a swimmer and the shadow of someone being cast onto the bottom or side of the pool.It does the same with an image from another camera viewing the shape from a different angle.If the two projections are in the same position,the shape is identified as a shadow and is ignored.But if they are different,the shape is a swimmer and so the system follows its trajectory.To pick out potential drowning victims,anyone in the water who starts to descend slowly is added to the software's"pre-alert"（预先警戒）list,says McQuade. Swimmers who then stay immobile on the pool bottom for 5 seconds or more are considered in danger of drowning.Poseidon double-checks that the image really is of a swimmer,not a shadow, by seeing whether it obscures（使模糊）the pool's floor texture when viewed from overhead. If so,it alerts the lifeguard,showing the swimmer's location on a poolside screen.The first full-scale Poseidon system will be officially opened next week at a pool in High Wycombe,Buckinghamshire.One man who is impressed with the idea is Travor Baylis, inventor of the clockwork（时钟装置）radio. Baylis runs a company that installs swimming pools-and he was once an underwater escapologist（脱身杂技演员）with a circus（马戏团）."I say full marks to them if this works and can save lives,"he says. How does Baylis look at the Poseidon system?A:He thinks it is too expensive.B:He thinksi t is a good system.C:He thinks it is not efficient enough.D: He thinks it is as good as the British pool watch system.
考题
The procurement manager is relieved that the new software he bought will be_______withthe existing TT system．A.Compatible
B.feasible
C.believable
D.receivable
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共用题干
第一篇Pool WatchSwimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble.The Royal Society for the Prevention of Accidents says that on average 15 people drown in British poois each year,but many more suffer major injury after getting into difficulties.Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning.When a swimmer sinks towards the bottom of the pool,the new system sends an alarm signal to a pooi- side monitoring station and a lifeguard's pager. In trials at a pool in Ancenis,near Nantes,it saved a life within just a few months,says Alistair McQuade,a spokesman for its maker,Poseidon Technologies.Poseidon keeps watch through a network of underwater and overhead video cameras.Al software analyses the images to work out swimmers'trajectories.To do this reliably,it has to tell the difference be- tween a swimmer and the shadow of someone being cast onto the bottom or side of the pool."The underwater environment is a very dynamic one,with many shadows and reflections dancing around,"says McQuade.The software does this by"projecting"a shape in its field of view onto an image of the far wall of the pool.It does the same with an image from another camera viewing the shape from a different angle.If the two projections are in the same position,the shape is identified as a shadow and is ignored.But if they are different,the shape is a swimmer and so the system follows its trajectory.To pick out potential drowning victims,anyone in the water who starts to descend slowly is added to the software's "pre-alert" list,says McQuade.Swimmers who then stay immobile on the pool bottom for 5 seconds or more are considered in danger of drowning. Poseidon double-checks that the image really is of a swimmer,not a shadow, by seeing whether it obscures the pool's floor texture when viewed from overhead. If so,it alerts the lifeguard,showing the swimmer's location on a poolside screen.The first full-scale Poseidon system will be officially opened next week at a pool in High Wycombe, Buckinghamshire.One man who is impressed with the idea is Travor Baylis,inventor of the clockwork radio.Baylis runs a company that installs swimming pools一and he was once an underwater escapologist with a circus." I say full marks to them if this works and can save lives,"he says.But he adds that any local authority spending ￡30,000-plus on a Poseidon system ought to be investing similar amounts in teaching children to swim.Which of the following statements about Travor Baylis is NOT true?A:He runs.B:He invented the clockwork radio.C:He was once an entertainer.D:He runs a company.
考题
The computer system（）suddenly while he was searching for information on the Internet.Abroke downBbroke outCbroke upDbroke in
考题
he IBM System Storage TS7650G ProtecTIER Deduplication Gateway solution offers industryleading inline deduplication performance and scalability up to which one of the following?（）A、1 PB of physical storage capacity per system that can produce up to 25 PB of storage capacity B、2 PB of physical storage capacity per system that can produce up to 30 PB of storage capacity C、5 PB of physical storage capacity per system that can produce up to 125 PB of storagecapacity D、10 PB of physical storage capacity per system that can produce up to 40 PB of storagecapacity
考题
CDE is working. However, the customized PATH environment has not been implemented. Which of the following procedures should be performed to activate he implementation?（）A、Update the .kshrc fileB、Edit $HOME/.dtprofile, and uncomment the DTSOURCEPROFILE=trueC、Copy /etc/.profile $HOME/.dtprofile and edit the file as neededD、Double click on the System Administration icon and select CDE profile
考题
A redaction policy was added to the SAL column of the SCOTT.EMP table: All users have their default set of system privileges. For which three situations will data not be redacted?（）A、SYS sessions, regardless of the roles that are set in the sessionB、SYSTEM sessions, regardless of the roles that are set in the sessionC、SCOTT sessions, only if the MGR role is set in the sessionD、SCOTT sessions, only if the MGR role is granted to SCOTTE、SCOTT sessions, because he is the owner of the tableF、SYSTEM session, only if the MGR role is set in the session
考题
Bob is going on a trip with his laptop configured with Windows 2000 Professional. He is concerned that he will run out of battery life and his system will crash. He asks you to configure the power savings feature so that when he is not using his laptop, it will save his work and power down. You go into Advanced Power Management options. What should you do next?（）A、Set the system to hibernation mode to 15 minutes.B、Set the system to snooze mode after 15 minutes.C、Max BatteryD、PresentationE、Minimal Power Management
考题
he ZXWM M900 system transmits network management information using specified monitoring channel at a rate of（）.A、2 Mbit/sB、10 Mbit/sC、100 Mbit/sD、1000 Mbit/s
考题
单选题A rogue loose called a hacker could take control of the entire system by implanting his own instructions in the software and then he could program the computer to erase any sign ______ .A
of his being ever thereB
he ever has been thereC
of his having ever been thereD
of him having ever been there
考题
问答题Practice 3 To the average person knowledge itself is of importance because of its bearing upon what he needs to do and to make. It helps him in clarifying his wants, in constructing his ends and in finding means for realizing them. There exist, in other words, values as well as known facts and principles, and philosophy is concerned primarily with values—with the ends for the sake of which man acts. Given the most extensive and accurate system of knowledge, man is still confronted with the question of what he is going to do about it and what he is going to do with the knowledge in his possession.
考题
填空题If a thief does break into a house equipped with an alarm system, he is likely to have less time to make a thorough search of the house.____
考题
单选题The computer system（）suddenly while he was searching for information on the Internet.A
broke downB
broke outC
broke upD
broke in
考题
问答题Practice 5 “The US governs the international system to protect its own economy. It is not in charge of protecting other economies.” Soros says. “So when America goes into recession, you have anti- recessionary (反衰退的) policies. When other countries are in recession, they don’t have the ability to engage in anti-recessionary policies because they can’t have a permissive monetary policy. because money would flee.” In person, he has the air of a philosophy professor rather than a gimlet-eyed (目光敏锐的) financier. In a soft voice which bears the faces of his native Hungary. he argues that it is time to rewrite the so-called Washington consensus—the cocktail of liberalization, privatization and fiscal rectitude which the IMF has been preaching for 15 years. Developing countries no longer have the freedom to run their own economies, he argues, even when they follow perfectly sound policies. He cites Brazil, which although it has a floating currency and manageable public debt was paying ten times over the odds to borrow from capital markets. Soros credits the anti-globalization movement for having made companies more sensitive to their wider responsibilities. “I think [the protesters] have made an important contribution by making people aware of the flaws of the system,” he says. “People on the street had an impact on public opinion and corporations which sell to the public responded to that.” Because the IMF has abandoned billion dollar bailouts(紧急融资)for troubled economies, he thinks a repeat of the Asian crisis is unlikely. The fund ‘s new “tough love” policy—for which Argentina is the guinea pig——has other consequences. The bailouts were a welfare system for Wall Street, with western taxpayers rescuing the banks from the consequences of unwise lending to emerging economies. Now the IMF has drawn a line in the sand, credit to poor countries is drying up. “It has created a new problem-the inadequacy of the flow of capital from center to the periphery(外围),” he says.
考题
单选题he system administrator is making system wide changes to a server， which will add to the PATH variable for the server environment. Where is the PATH variable found for the system？（）A
/profileB
/etc/envpathC
/etc/profileD
/etc/environment
考题
单选题he IBM System Storage TS7650G ProtecTIER Deduplication Gateway solution offers industryleading inline deduplication performance and scalability up to which one of the following?（）A
1 PB of physical storage capacity per system that can produce up to 25 PB of storage capacity B
2 PB of physical storage capacity per system that can produce up to 30 PB of storage capacity C
5 PB of physical storage capacity per system that can produce up to 125 PB of storagecapacity D
10 PB of physical storage capacity per system that can produce up to 40 PB of storagecapacity
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