custom URL categories cannot contain IP addresses
custom URL categories cannot override predefined URL categories
custom URL categories can contain domain names
custom URL categories can use regular expressions
第1题:
Which statement concerning carbon dioxide is FALSE ________.
A.It displaces the oxygen in the air
B.It cannot be seen
C.It cannot be smelled
D.It is safe to use near personnel in a confined space
第2题:
Which statement concerning the application of dry chemical powder is FALSE ________.
A.At temperatures of less than 32℉,the extinguisher must be recharged more often
B.When possible,the fire should be attacked from windward
C.The stream should be directed at the base of the fire
D.Directing the stream into burning flammable liquid may cause splashing
第3题:
You issue this statement:ALTER DATABASE BACKUP CONTROLFILE TO TRACE; What does the statement generate?()
第4题:
Which statement is false about sales catalogs?()
第5题:
Which two statements are true about terms in a routing policy?()
第6题:
Fresh water may be obtained from fish
lifeboat covers or canopies should be washed with rain before drinking water is collected
Fresh water may be collected from condensation inside the life-raft
Freshwater cannot be produced from standing seawater
第7题:
The cranes may be operated independently
The cranes may be interconnected for twin operation
The cranes are powered by independent internal combustion power units
All of the above
第8题:
You can conned as a common user by using the connect statement.
You can connect as a local user by using the connect statement.
You can connect by using easy connect.
You can connect by using OS authentication.
You can connect by using a Net Service name.
You can connect as a local user by using the SET CONTAINER statement.
第9题:
Automatic statistics collection is stopped for the CUSTOMERS table.
Statistics for the CUSTOMERS table are locked and cannot be overwritten.
Existing statistics for the CUSTOMERS table become unusable for the query optimizer.
Subsequently, statistics gathered on the CUSTOMERS table are stored as pending statistics.
第10题:
A text copy of the control file.
A binary copy of the control file.
A file containing a SQL statement which will re-create the database.
A file containing a SQL statement which will re-create the control file.
第11题:
assert true;
assert false;
assert false : true;
assert false == true;
assert false: false;
第12题:
A fully loaded vessel will be slower to respond to the engines
A fully loaded vessel will maintain her headway further
A light vessel will be more affected by the wind
A light vessel lose more rudder effect in shallow water
第13题:
Which statement concerning locating signals in the GMDSS is FALSE ________.
A.Locating signals are transmitted by survival craft VHF transceivers
B.Locating signals are transmitted by SARTs
C.Locating signals are intended to facilitate the finding of a distressed vessel or its survivors
D.Locating signals are not transmitted by autoalarm generators
第14题:
You are underway with a tow consisting of six barges containing hazardous chemicals.Which statement is FALSE concerning a cargo information card ________.
A.It must be carried in the pilothouse,readily available for each chemical carried
B.It must be posted on the lead barge of the tow only
C.It must be posted on each barge on the tow
D.It contains information on procedure for spills or leaks
第15题:
Which statement is false?()
第16题:
public class Test{ public static void main( String[] argv ){ // insert statement here } } Which statement, inserted at line 3, produces the following output?() Exception in thread “main” java.lang.AssertionError: true at Test.main(Test.java:3)
第17题:
They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.
They are evaluated by the first WHEN clause. If the condition is true, then the row would be evaluated by the subsequent WHEN clauses.
They are evaluated by the first WHEN clause. If the condition is false, then the row would be evaluated by the subsequent WHEN clauses.
The INSERT statement would give an error because the ELSE clause is not present for support in case none of the WHEN clauses are true.
第18题:
Its accuracy remains the same at all latitudes
It seeks the true meridian
It can be used near the Earth's magnetic poles
If an error exists,it is the same on all headings
第19题:
Raising the antenna height increases the radar range
The ability of radar to detect objects is unaffected by weather conditions
Radar bearings are less accurate than radar ranges
Radar should be checked regularly during clear weather to ensure that it is operating properly
第20题:
supports Java EE 6.0
supports WebLogic Web Services 8.1 Application Environment
includes a new Maven plug-in
supports use of annotations in resource adapter class files
第21题:
A higher interleave depth provides more protection from burst of noise on the HFC network
Higher interleave depth increase downstream latency
Lower interleave depth cause some packet loss on typical HFC networks
None ofthe above
第22题:
If one screw is stopped,the ship will turn toward the side of the stopped screw
The principal force which turns the ship is set up by the wake against the forward side of the rudder
Turning response by use of the rudder only is greater than on a single-screw vessel
With the rudder amidships,the ship will steer a fairly steady course
第23题:
The tape I/O performed is asynchronous
The tape buffer is allocated from the System Global Area (SGA)
The tape buffer is allocated from the Program Global Area (PGA)
Oracle I/O uses an interrupt mechanism to determine when each I/O completes
第24题:
A vessel which cannot avoid a close-quarters situation with a vessel forward of her beam shall reduce her speed to bare steerageway
A vessel which hears a fog signal forward of her beam shall stop her engines
A vessel which hears a fog signal forward of the beam shall navigate with caution
If a vessel determines by radar that a close-quarters situation is developing,she shall take avoiding action in ample time