Which statement is true concerning 6to4 tunneling?()A. The edge routers can use any locally configured IPv6 address.B. Hosts and routers inside a 6to4 site will need a special code.C. An edge router must use IPv6 address of 2002::/16 in its prefix.D. IPv4

Sweat damage in containers is unusual due to the small enclosed volume of air

In general，containerized hygroscopic cargoes are the only ones subject to sweat damage

Containers should be ventilated，dehumidified，or the contents physically protected against sweat damage

Sweat damage is not a problem except in insulated and refrigerated containers

Each vessel should show sidelights

Each vessel should show at least one white light

The barges should be lighted as separate units

The barges should be lighted as one vessel

It is a sailing maneuver which brings the vessel's head through the wind

It connects the boom to the mast and allows the boom to swing freely

It is a sailing condition where there is a loss of air flow over the sails

None of the above

6to4 is a manual tunnel method

Prepending a reserved IPv6 code to the hexadecimal representation of 192.168.0.1 facilitates6to4 tunneling

Each 6to4 site receives a /48 prefix in a 6to4 tunnel

2002：：/48 is the address range specifically assigned to 6to4

Prepending 0x2002 with the IPv4 address creates an IPv6 address that is used in 6to4tunneling

dual stack

dynamic

Teredo

Manual 6to4

A flammable gas detection system must be installed in each cargo pump room

Tanks may not be located on deck

Carriage of this cargo is authorized by issuance of an IMO Certificate

Aluminum and copper alloys are prohibited from being in valve parts in contact with the cargo

They must be released by freeing a safety shackle

They should not be released until the boat is in lowering position

They may be adjusted by a turnbuckle

They are normally used only with radial davits

The light comes on at sunset

There is an emergency light if the main light is extinguished

The height of the light is 24 feet

The tower is painted with black and white stripes

Each vent for the tank must be equal to the area of the tank filling line

The tanks must be protected by overflows

The total area of the vents or the overflow shall be at least equal to the area of the fill line

There must be twice as much vent area as the area of the fill line

By day，she shall carry a black cylinder shape

By day，she shall carry two black balls in a vertical line

By night，she would show the same lights as a vessel not under command

By day，she would show the same shapes as a vessel restricted in her ability to maneuver

Do not exceed rated load capacity of crane and container spreader or slings

During any cargo handling operation，the safety of personnel is paramount

Cargo handlers must be outfitted with adequate protection from personal injury

All the above

Automatic 6to4, quartets 2 and 3

Automatic 6to4, quartets 7 and 8

ISATAP, quartets 2 and 3

ISATAP, quartets 7 and 8

The catenary in a hawser should be sufficient so that the hawser just touches the bottom

The hawser is of sufficient length for towing when taut between tug and tow

Increasing speed usually increases the catenary in the hawser

Shortening the tow hawser generally decreases the maneuverability of the tug

The towing line between the two vessels should be clear of the water

The towing line should be taut at all times between the vessels

There should be a catenary so the line dips into the water

None of the above

Nowadays teamwork is a popular concept.

All the companies put great emphasis on teams.

A good team involves close supervision of the team leader.

There’s nothing in common between a team and a group.

All switch statements must have a default label.

There must be exactly one label for each code segment in a switch statement.

The keyword continue can never occur within the body of a switch statement.

No case label may follow a default label within a single switch statement.

A character literal can be used as a value for a case label.

They are heavier than air and will settle in the lowest part of the vessel

They are lighter than air and will settle in the highest part of the vessel

They should be vented into the engine to improve combustion

They should be vented into the wheelhouse

The discharge is slow due to the size of the cargo and all the cranes working together

The cargo discharge can be accomplished with controlled pendulation

The cargo discharge can be performed in port or at anchor

The cranes enable the handling of heavy cargos without shoreside assistance

Spare charges shall be carried for at least 50 percent of each size and variety required on board

If the unit cannot be charged by the vessel's personnel，one spare unit shall be carried in lieu of spare charges

Spare charges shall be stowed in watertight containers on deck

Regulations concerning spare charges do not apply to unmanned barges