Which statements concerning the methods notify（） and notifyA

第1题：

Which of the following are valid methods of providing a router with information concerning thelocation of the RP？ （Choose all that apply.）（）

• A、Statically defined RP
• B、Bootstrap Router
• C、Auto-RP
• D、RP Discovery Protocol （RDP）
• E、RP Helios
• F、RPARP（RARP）

第2题：

Which of the following are valid methods of providing a router with information concerning the location of the RP（）

• A、Statically defined RP
• B、Bootstrap Router
• C、Auto-RP
• D、RP Discovery Protocol（RDP）
• E、RP Helios
• F、RPARP（RARP）

第3题：

第4题：

Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）

• A、Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit
• B、The device with the lowest MAC address is permitted to retrannsmit first
• C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision
• D、Both devices send a jam signal to notify all other devices of the collision

第5题：

Which statements are true concerning NAT？ （）

• A、 NAT provides 1 to manyaddress mapping.
• B、 NAT provides 1 to 1 address mapping.
• C、 NAT is only useful forTCP/UDP and ICMP traffic.
• D、 NAT can be used for all IP traffic.

第6题：

Which of the following statements concerning intellectual property is wrong？（）

• A、Intellectual property is an intangible creation
• B、Intellectual property in ludes patents，trademarks，copyrights，etc.
• C、Intellectual property is a visible creation
• D、There are some agreement sconcerning intellectual property under the WTO

第7题：

Which statements concerning the methods notify（） and notifyAll（） are true？  

• A、Instances of class Thread have a method called notify（）.
• B、A call to the method notify（） will wake the thread that currently owns the monitor of the object.
• C、The method notify（） is synchronized.
• D、The method notifyAll（） is defined in class Thread.
• E、When there is more than one thread waiting to obtain the monitor of an object， there is no way to be     sure which thread will be notified by the notify（） method.

第8题：

第9题：

Which of these statements concerning the collection interfaces are true？（）  

• A、Set extends Collection.
• B、All methods defined in Set are also defined in Collection.
• C、List extends Collection.
• D、All methods defined in List are also defined in Collection.
• E、Map extends Collection.

第10题：

Which two statements are true？（）

• A、It is possible for more than two threads to deadlock at once.
• B、The JVM implementation guarantees that multiple threads cannot enter into a deadlocked state.
• C、Deadlocked threads release once their sleep（） method’s sleep duration has expired.
• D、Deadlocking can occur only when the wait（）， notify（）， and notifyAll（） methods are used incorrectly.
• E、It is possible for a single-threaded application to deadlock if synchronized blocks are used incorrectly.
• F、If a piece of code is capable of deadlocking， you cannot eliminate the possibility ofdeadlocking by insertinginvocations of Thread.yield（）.