[单选题] The term flood current refers to that time when the water ______．
A.is flowing towards the land
B.is moving towards the ocean
C.level is not changing
D.level is rising because of heavy rains

[判断题]SYN FlooD就是一种DDOS攻击。
A.正确
B.错误

[单选题]FLOOD LT MAIN PNL旋钮调节哪部分泛光灯的亮度：
A.侧操纵台和飞行员座位周围地板
B.顶灯
C.中央控制台
D.中央仪表板

[单选题]Eudemon1000 针对Syn-Flood 攻击默认触发阀值是 1000 连接/秒。
A.对
B.错

[单选题]实施 SYN FlooD，攻击者需向攻击目标发送(____)TCP 包。
A.SYN
B.SYN ACK
C.ACK
D.FIN

[多选题]以下关于华三防火墙对syn-flood攻击防御技术，描述正确的是(____)。
A.基于TCP搬开连接数限制方法防范SYN floood攻击
B.基于TCP新建连接速率限制方法方法SYN flood攻击
C.利用SYN COOKIE技术方法SYN flood攻击
D.通过防火墙自动学习机制生成阀值进行防范SYN flood攻击
E.利用safe reset技术防范SYN flood攻击

[判断题]The continental shelf is a geographical term referring to the seabed and subsoil of
The submarine areas that extend beyond territorial sea throughout the natural prolongation of land territory to the outer edge of the continental margin.
A.正确
B.错误

[多选题]
Which statements about the beginning and termination of diplomatic immunity are correct?
A. 1mmunity starts from the moment that a diplomatic agent enters into the receiving state for taking up his post.
B. A diplomatic agent who is already in the country of the receiving state begins to enjoy immunities and privileges from the moment of the official notification by the receiving state.
C. Diplomatic immunity shall normally cease at the moment when the functions of a diplomatic agent have come to an end and he leaves the country of the receiving state.
D. Diplomatic immunity shall subsist until the expiry of a reasonable period given to a person who have been granted immunities and privileges to leave the country ofthe receiving state.

[单选题] The term restricted visibility, when used in the Rules, refers to ______.
A. situations when you can see vessels on radar that you cannot see visually
B. visibility of less than half a mile
C. any condition where visibility is restricted
D. visibility where you cannot see shore

[单选题] What does the term TO NAVIGATE WITH CAUTION mean?
A. To navigate intentionally
B. To navigate intensely
C. To navigate carefully
D. To navigate completely

[单选题] A term applied to the bottom shell plating in a double-bottom ship is ______．
A.bottom floor
B.outer bottom
C.shear plating
D.tank top

[单选题] The navigational term “SET OF CURRENT” means ______.
A. velocity of current in knots
B. direction from which the current flows
C. estimated current
D. direction toward which the current flows

[单选题] What does the term “tide” refer to?
A. Horizontal movement of the water
B. Vertical movement of the water
C. Mixing tendency of the water
D. Salinity content of the water

[单选题] ______ is a term denoting the determination of a ship’s position by observations of celestial or terrestrial objects, or by a combination of both.
A. Course-planing
B. Position-fixing
C. Radar-plotting
D. Stowage-plan making

[单选题] The term of Landfall means ______．
A.Land first sighted when vessel approaching from seaward
B.Land last sighted when vessel leaving from a port
C.In sight of one another when vessel underway
D.In sight of an island during a ship on her voyage

[单选题] The term strake is used in reference to ______．
A.rudder mountings
B.anchor gear
C.hull plating
D.vessel framing

[单选题] The term STANDING RIGGING refers to _____.
A. booms and kingposts
B. guys and vangs
C. stays and shrouds
D. topping lifts and cargo runners

[单选题] Limber is a term associated with ______．
A.Emergency gear
B.Drainage
C.Deck cargo storage
D.Securing gear

[单选题] The term power-driven vessel means _____ in these Rules .
A. any asiling vessel with propelling machinery
B. any vessel propelled by machinery
C. any sailing vessel with or without machinery for propelling
D. any sailing vessel with propelling machinery not in use