船舶水手考试
（）leads forward from the port or starboard quarter to the shore.A、An aft springB、An aft breast lineC、A fore breast lineD、A stern line
题目
（）leads forward from the port or starboard quarter to the shore.
- A、An aft spring
- B、An aft breast line
- C、A fore breast line
- D、A stern line
相似问题和答案
第1题：
A.The switch will not forward unicast frames.
B.The switch will forward the frame to a specific port.
C.The switch will return a copy of the frame out the source port.
D.The switch will remove the destination MAC from the switch table.
E.The switch will forward the frame to all ports except the port on which it was received.
第2题：
Lifeboats are numbered ______.Odd numbers to starboard and even numbers to port．
A.from forward to aft
B.from aft to forward
C.at master's option
D.as per owner's instruction
第3题：
A Ezonexam Ethernet switch receives a unicast frame. with a destination MAC that is listed in the switch table. What will this switch do with the frame?
A. The switch will forward the frame. to a specific port
B. The switch will forward the frame. to all ports except the port on which it was received
C. The switch will return a copy of the frame. out the source port
D. The switch will not forward unicast frames
E. The switch will remove the destination MAC from the switch table
F. None of the above.
A 解析：Explanation:
How Does the Switch Find Host MACs?
Let's use the diagram below to help us understand how address learning process takes place.
Let's assume that we have just powered on the switch. It has nothing in its MAC table. We connect the cables from the hosts on the switch interfaces as shown in the diagram. Host A initiates a connection towards Host D, and the following takes place:
1. Host A (interface fe0/0) sends a frame. to Host D (MAC address:0000.43c5.334c).
2. The switch inspects the Source Address in the frame. and notes in its table the MAC address of Host A along with the Interface number from which the frame. originated.
3. The switch inspects the Destination Address in the frame. Since it does not have Hosts D MAC address in its table, it constructs a broadcast frame. and forwards out all interfaces except the interface from where the original frame. arrived.
4. Host D identifies itself as the expected recipient and responds back to Host A. The switch receives the respond frame. on interface fe0/11 and places the SA in its table along with the interface number where the frame. came from.
5. From now on, further communication between the two hosts will be switched to the appropriate interfaces based on the MAC tables entries.
This process takes place every time a new host is attached on the switch and initiates traffic. The switch tries to keep its MAC table up-to-date, therefore if some hosts do not initiate traffic for a certain amount of time, the switch removes them from its table and reinserts them when they begin sending traffic.
第4题：
Put forward spring on the （）（系缆桩）.
- A、wharf
- B、bollard
- C、nut
- D、port
正确答案:B
第5题：
The forward part of the ship on port is called the（）.
- A、port side
- B、port quarter
- C、port bow
- D、fore port
正确答案:C
第6题：
The time of voyage insurance with cargo on board will，in accordance with PICC Clauses， commence from the time of ________ ．
A.unmooring at port of sailing
B.weighing anchor at port of sailing
C.loading at port of sailing
D.sailing from port of sailing
第7题：
Which tanker discharge pattern would be the safest and most efficient ________．
A.Empty the forward tanks and start working aft，emptying each tank in sequence
B.Start discharging with most of the discharge coming from forward，but include some from midships and after tanks
C.Start pumping from forward，midships，and aft with the discharge distributed equally among the tanks
D.Start pumping from midships and then work forward and aft simultaneously as the midships tank is emptied
第8题：
A.switch-1 will drop the data because it dose not have an entry for that MAC address
B.switch-1 will flood the data out all of its port from which the data originated
C.switch-1 will forward the data to its default gateway
D.tch-1 will send an ARP request out all its ports except the port from which the data originated
第9题：
A new Company switch was just configured using the "switchport trunk native vlan 7" command. What does this interface command accomplish？（）
- A、 Causes the interface to apply ISL framing for traffic on VLAN 7
- B、 Configures the trunking interface to forward traffic from VLAN 7
- C、 Configures the interface to be a trunking port and causes traffic on VLAN 7 to be 802.1q tagged
- D、 Configures the trunking interface to send traffic from VLAN 7 untagged
- E、 None of the other alternatives apply
正确答案:D
第10题：
A （）leads forward from the forecastle to the shore.
- A、head line
- B、breast line
- C、spring line
- D、stern line
正确答案:A