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Which statement is true concerning a vessel equipped with operational radar?（）.
A . The Master of the vessel must be on the bridge when the radar is in use
B . The radar equipment is only required to be used in restricted visibility
C . The use of a radar excuses a vessel from the need of a look-out
D . This equipment must be used to obtain early warning of risk of collisio
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Which statement about the hospital space on a cargo ship is TRUE（）.
A . The hospital may be used for disciplinary confinement if it is not being used for treatment
B . The hospital space must have both a bathtub and shower
C . A hospital is required on all vessels with a crew of 12 or more if it makes overnight voyages
D . If a ship has a crew of forty-five who do not have their own room，the hospital must have four berth
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When evacuating a seaman by helicopter lift，which statement is TRUE?（）
A . Evacuation should be from an area forward of the bridge
B . The vessel should be slowed to bare steerageway
C . If the hoist is at the stern，booms extending aft at the stern should be cradled with the topping lifts hove taut
D . The litter should not be touched until it has been grounded
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Which statement is true about a certificate authority？（）
A . An entity responsible for registering the private key encryption used in a PKI
B . An agency responsible for granting and revoking public-private key pairs
C . A trusted third party responsible for signing the public keys of entities in a PKIbased system
D . A trusted third party responsible for signing the private keys of entities in a PKIbased system
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Which statement is TRUE of a stiff vessel? （）
A . She will have a large metacentric height
B . Her period of roll will be large due to her large metacentric height
C . She will have an unusually high center of gravity
D . She will pitch heavily
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A fishing vessel is approaching a vessel not under command. Which statement is TRUE? （）
A . The fishing vessel must keep clear of the vessel not under command
B . If the vessel not under command is a power-driven vessel，she must keep clear of the fishing vessel
C . They must exchange whistle signals
D . Both vessels are required to take action to stay clear of each other
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A seaman you have just discharged has a Continuous Discharge Book. Which statement is TRUE? （）
A . The record of entry in the continuous discharge book shall agree with the entry made in the Ship's Articles.
B . If the vessel was on coastwise articles，the record of discharge will be made in the Official Logbook.
C . An entry should be made in the book and a Certificate of Discharge issued to the seaman.
D . A Certificate of Discharge form should be attached to the book
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Which statement is TRUE concerning fuel vapors on a vessel（）.
A . Fuel vapors gather in the lowest portions of the vessel
B . Fuel vapors can only be ignited by an open flame
C . Vent outlets should be located above the level of the carburetor air intake
D . None of the above
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Which statement comparing a shipboard crane to conventional gear is TRUE（）.
A . Cranes are more difficult to secure for sea
B . The spotting area of the conventional gear is larger
C . A crane operator requires more training than the winch operator of a yard and stay rig
D . The yard and stay rig is more flexible in its ability to handle a wider variety of cargoe
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Which of the following statements is true regarding implementing a Flashback Table recovery？ （）
A . An SCN is never used to perform a Flashback Table recovery.
B . If a significant number of changes have been made to the table， row movement must be enabled.
C . The tablespace must be offline before performing a Flashback Table recovery.
D . Flashback Table recovery is completely dependent on the availability of undo data in the undo tablespace.
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Which of the following statements about a Sales Catalog is TRUE？（）
A . A store can only have one sales catalog.
B . A sales catalog is used to bundle similar products.
C . A sales catalog may be used to place a product in more than one category.
D . Every store must have a sales catalog.
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Which statement about stopping a vessel is TRUE?（）
A . A lightly laden vessel requires as much stopping distance as a fully laden vessel when the current is from astern
B . A vessel is dead in the water when the back wash from astern operation reaches the bow
C . A tunnel bow thruster can be used in an emergency to reduce the stopping distance
D . When a vessel is dead in the water any speed displayed by doppler log reflects the current
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Which statement is true about the components of a queuing mechanism？（）
A . Each subinterface has its own hardware queue and can experience congestion just like its main interface
B . Hardware queuing is only used if the software queues are experiencing congestion.
C . Hardware queues and software queues are not used concurrently.
D . The hardware queuing system always uses the FIFO queuing mechanism.
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Which two statements are true when when a Coherence cluster member is lost ？ （）
A . Remaining members recover by repartitioning the data across the remainig cluster members in parallel with normal request processing
B . Some latencies may be experienced due to higher priority of recovery
C . In flight operations may be lost
D . A system administrator must manually assist recovery of the lost data
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A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?（）
A . The aluminum will provide greater resistance to the spread of fire by conduction
B . The aluminum structure is usually attached to a steel coaming by a method that insulates the two metals
C . If the superstructure is stressed，an aluminum structure requires additional expansion joints to prevent fracture
D . The steel at the area of the aluminum-to-steel connection must be closely checked for galvanic corrosio
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Which statement is true about a worm attack？（）
A . Human interaction is required to facilitate the spread.
B . The worm executes arbitrary code and installs copies of itself in the memory of the infected computer.
C . Extremely large volumes of requests are sent over a network or over the Internet.
D . Data or commands are injected into an existing stream of data. That stream is passed between a client and server application.
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Which statement is true about a Smurf attack？（）
A . It sends ping requests in segments of an invalid size
B . It intercepts the third step in a TCP three-way handshake to hijack a session
C . It sends ping requests to a subnet， requesting that devices on that subnet send ping replies to a targetsystem
D . It uses Trojan horse applications to create a distributed collection of "zombie" computers， which can beused to launch a coordinated DDoS attack
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A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）.
A . When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may result
B . When going directly from full ahead to full astern，there is complete steering control
C . When the vessel has headway and the propeller is in neutral，there is no effect on rudder control
D . When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
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Which of the following statements is TRUE about mounting a file system?（）
A . A file system cannot be mounted on a directory containing data.
B . Mounting a file system on a mount point containing data will delete the data.
C . Mounting a file system on a amount point containing data will make the data temporarily inaccessible.
D . A systems administrator must manually create an empty directory prior to mounting an AIX JFS.
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Which statement is true about the distributed call control in a VoIP network？（）
A . the VoIP endpoints have the intelligence to set up and control calls
B . Call setup and control functionality is centralized in one call agent or cluster
C . Call setup and control resides in call agents that are distributed throughout the network
D . Each VoIP device has separate call control， voice packetization， and transport mechanism
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Which statement is true about a Dynamic Chain Selection Module instance?（）
A . It is the first module in the partner module chain in Web Services Security Management （WSSM）.
B . It is the last module in the partner module chain in WSSM.
C . It is the first module in the application module chain for partner.
D . It is the last module in the application module chain for the partner.
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Which statement is true about Foreign Exchange Station （FXS） ports on a router？（）
A . The FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office.
B . The FXS interface connects directly to a standard telephone，fax machine，or similar device and supplies ring，voltage，and dial tone.
C . The FXS interface connects directly to an IP phone and supplies ring，voltage，and dial tone.
D . The FXS interface connects directly to ISDN voice channels.
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Which statement is TRUE concerning gasoline vapors on board a vessel（）.
A . They are heavier than air and will settle in the lowest part of the vessel
B . They are lighter than air and will settle in the highest part of the vessel
C . They should be vented into the engine to improve combustion
D . They should be vented into the wheelhouse
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There is a reversible reaction at equilibrium. Which of the following statement is true？
A．Heating can facilitate the formation of C
B．Adding A or B to the reaction equilibrium can shift the equilibrium to the right．
C．Adding C to the reaction equilibrium can shift the equilbrium to the right．
D．Add a chemical that binds to A can shift the equilibrium to the right
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Which of the following statement about Q & A session is NOT true？
A．Q ﹠ A session is usually held immediately after the oral presentation．
B．Q ﹠ A session only benefits questioners．
C．Q ﹠ A session is an integral part of academic presentations．
D．Q ﹠ A session is arranged for most of the international academic conferenc
E．
