单选题Which of the following statements is TRUE regarding automatic identification systems (AIS) ?（）AAIS cannot be used to make passing arrangements because the system is not capable of this type of ship-to-ship communicationsBAIS cannot be used to make passing arrangements because the ship-to-ship text messaging feature is for emergency use onlyCAIS can be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is not relieved from the requirement to sound whistle signals or make arrangements via bridge-to-bridge radiotelephoneDAIS can be used to make passing arrangements via ship-to-ship text massaging thus relieving a vessel operator from making such arrangements via bridge-to-bridge radiotelephone or signaling intent to pass via whistle signals
单选题
Which of the following statements is TRUE regarding automatic identification systems (AIS) ?（）
A
AIS cannot be used to make passing arrangements because the system is not capable of this type of ship-to-ship communications
B
AIS cannot be used to make passing arrangements because the ship-to-ship text messaging feature is for emergency use only
C
AIS can be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is not relieved from the requirement to sound whistle signals or make arrangements via bridge-to-bridge radiotelephone
D
AIS can be used to make passing arrangements via ship-to-ship text massaging thus relieving a vessel operator from making such arrangements via bridge-to-bridge radiotelephone or signaling intent to pass via whistle signals
参考解析
解析：
暂无解析
相关考题：
Which of the statements regarding benefit-cost analysis in the Special window are true?A . 1 and 2B . 2 and 3C . 1 and 3D . 1, 2 and 3E . None of the above.
Which of the following statements is true? Accounts payable are ______.A．debts owed to suppliersB．related to purchases of goods on an open accountC．current liabilitiesD．all of the above
Which two statements are true regarding the starting of the database instance using the following command?()SQLSTARTUP UPGRADE A. It enables all system triggers.B. It allows only SYSDBA connections.C. It ensures that all job queues remain active during the upgrade process.D. It sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.
The man page for command shows the following syntax: The man page for command shows the following syntax: command [ －a | －b ] Which of the following statements is true regarding this entry?() A. Either the -a or flag -b may be used, but not both.B. If the flag -a is used then the flag -b also must be used.C. One of the -a or -b flags must be used, but not both at the same time.D. Both the flags may be used together, but neither are mandatory.
The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?() A. The default administrative distance is used.B. The command is used to establish a static route.C. The command is used to configure the router interfaces.D. The command is used to establish a stub network.E. The subnet mask for the source address is 255.255.255.0
Which of the following statements is TRUE regarding crane operations ________．A.Radio communications allow the crane operator to disregard the use of hand signalsB.The crane operators and signalman must be familiar with the correct hand signalsC.The forward cranes can be operated from the bridgeD.The aft cranes can be operated from the aft steering station
Which of the following is true regarding Label Distribution Protocol （LDP）？（）A、It is a label distribution protocol for MPLSB、It is a set of procedures and messages by which LSRs establish Label Switch Paths （LSPs） through a networkC、Tag distribution Protocol （TDP） was the basis for LDPD、All of the above are true
Which of the following statements is true regarding the VERSIONS BETWEEN clause？（） A、 The VERSIONS BETWEEN clause may be used in DML statements.B、 The VERSIONS BETWEEN clause may be used in DDL statements.C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
Which two statements are true regarding the starting of the database instance using the following command?（） SQLSTARTUP UPGRADEA、It enables all system triggers.B、It allows only SYSDBA connections.C、It ensures that all job queues remain active during the upgrade process.D、It sets system initialization parameters to specific values that are required to enable database upgrade scripts to be run.
Which statement is true regarding the INTERSECT operator?（）A、It ignores NULL values B、Reversing the order of the intersected tables alters the result C、The names of columns in all SELECT statements must be identical D、The number of columns and data types must be identical for all SELECT statements in the query
The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?（）A、The default administrative distance is used.B、The command is used to establish a static route.C、The command is used to configure the router interfaces.D、The command is used to establish a stub network.E、The subnet mask for the source address is 255.255.255.0
The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）A、Either the -a or flag -b may be used, but not both.B、If the flag -a is used then the flag -b also must be used.C、One of the -a or -b flags must be used, but not both at the same time.D、Both the flags may be used together, but neither are mandatory.
Which two statements are true regarding L2TP? （）(Choose two.)A、Tunnels are initiated by the LACB、Tunnels are initiated by the LNSC、By default, subscriber authentication occurs on the LNSD、By default, subscriber authentication occurs on the LAC
Which of the following statements are true regarding the Recycle Bin？（）A、 The Recycle Bin is a physical storage area for dropped objects.B、 The Recycle Bin is a logical container for dropped objects.C、 The Recycle Bin stores the results of a Flashback Drop operation.D、 The objects in the Recycle Bin are stored in the tablespace in which they were created.
Examine the following statement that is used to modify the constraint on the SALES table： SQL ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE； Which three statements are true regarding the above command（）A、The constraint remains valid.B、The index on the constraint is dropped.C、It allows the loading of data into the table using SQL*Loader.D、New data conforms to the constraint， but existing data is not checkedE、It allows the data manipulation on the table using INSERT/UPDATE/DELETE SQL statements.
You have just performed a FLASHBACK TABLE operation using the following command： flashback table employees to scn 123456； The employees table has triggers associated with it. Which of the following statements is true regarding the state of the triggers during the Flashback Table operation？（） A、 All the triggers are disabled.B、 All the triggers are enabled by default.C、 Enabled triggers remain enabled and disabled triggers remain disabled.D、 Triggers are deleted when a Flashback Table operation is performed.
多选题If p and q are primes greater than 2, which of the following statements must be true? (Indicate all such statements.)Ap + q is evenBpq is oddCp2-q2 is even
多选题Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)Ac=dBl and k are parallelCm and l are perpendicular
多选题Which of the following statements are true? (Indicate all such statements.)Aτ(5) =τ(7)Bτ(5) τ(7) =τ(35)Cτ(5) + τ(7) =τ(12)
单选题Which of the following statements is TRUE regarding crane operations（）.ARadio communications allow the crane operator to disregard the use of hand signalsBThe crane operators and signalman must be familiar with the correct hand signalsCThe forward cranes can be operated from the bridgeDThe aft cranes can be operated from the aft steering station
多选题The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?（）AThe default administrative distance is used.BThe command is used to establish a static route.CThe command is used to configure the router interfaces.DThe command is used to establish a stub network.EThe subnet mask for the source address is 255.255.255.0
多选题Which of the following statements are true regarding the Recycle Bin？（）AThe Recycle Bin is a physical storage area for dropped objects.BThe Recycle Bin is a logical container for dropped objects.CThe Recycle Bin stores the results of a Flashback Drop operation.DThe objects in the Recycle Bin are stored in the tablespace in which they were created.
单选题Which of the following is true regarding Label Distribution Protocol （LDP）？（）AIt is a label distribution protocol for MPLSBIt is a set of procedures and messages by which LSRs establish Label Switch Paths （LSPs） through a networkCTag distribution Protocol （TDP） was the basis for LDPDAll of the above are true
单选题Which of the following statements is/are true regarding hydraulic pumps in general? （）AVariable volumes can be obtained with gear pumps only by variation of the pump drive speedBA radial piston pump houses sliding pistons in a stationary cylinder block through which passes a rotating pintle or ported shaftCThe amount of fluid displaced per revolution of an axial piston rotary pump is dependent on the angle formed between the cylinder block and valve plateDAll of the above
单选题Which statement is true regarding the INTERSECT operator?（）AIt ignores NULL values BReversing the order of the intersected tables alters the result CThe names of columns in all SELECT statements must be identical DThe number of columns and data types must be identical for all SELECT statements in the query
多选题The following configuration command was issued on router TK1:ip route 172.16.3.0 255.255.255.0 192.168.2.1.Which of the following statements are true regarding this command?（）AThe command is used to establish a static route.BThe default administrative distance is used.CThe command is used to configure the default route.DThe subnet mask for the source address is 255.255.255.0EThe command is used to establish a stub network
单选题Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）A The VERSIONS BETWEEN clause may be used in DML statements.B The VERSIONS BETWEEN clause may be used in DDL statements.C The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
单选题Which of the following is not true regarding IOS default settings for administrative distance?（）AEIGRPinternal：90BOSPFexternal：110CEIGRPexternal：90DRIP：120EOSPFinternal：110