The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.
The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
The LSA is dropped and a message is sent to the transmitting router.
The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.
第1题：
When Eric _____that she had a lot of talent, he gave her a new violin.
A. put up
B. looked at
C. found out
第2题：
Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network.Which of the following answers best describes the router‘s logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）
A. When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interface
B. When routing the packet, matching a route whose outgoing interface is the GRE tunnel interface
C. When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interface
D. When permitted by an ACL that was referenced in the associated crypto map
第3题：
In learning a foreign language, one should first pay attention to speaking.It is the ground-work(基础)of reading and writing. You'd better try your best to speak. Don't be afraid of making mistakes. While you are doing this, a good exercise is to write --- keep a diary, write notes or letters and so on. Many mistakes in your speaking will be easily found when you write.Through correcting the mistakes.
If you are slow in speaking,When you not important to the sentence. You can do that some other time.
6.Speaking is the ground-work while you are learning a foreign language.
A.T
B.F
7.The best way to learn through mistakes is to try your best to speak.
A.T
B.F
8.When you write, you will learn how to speak.
A.T
B.F
9.When you read, you should choose interesting books for you.
A.T
B.F
10.When you find some new words in reading, you should guess their meanings first.
A.T
B.F
第4题：
Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network. Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）
第5题：
The three main things that a learner has to acquire when learning a new structure are the form, meaning and（）of the structure.
use
略
第6题：
Meteorologists forecast the weather______．
A．when they have received satellite pictures
B．after they have compared new satellite pictures with earlier ones
C．before they received satellite pictures
D．during they study satellite pictures
第7题：
Learning is more effective when the learners are actively involved in the learning process.（）
A对
B错
第8题：
When was duet most probably found to be the very hero? ( )
A. the day when he was leaving for home.
B. a couple of days after the girl was rescued
C. the first day when he was in New York
D. the same day when he was interviewed.
第9题：
Learning is more effective when the learners are actively involved in the learning process.（）
第10题：
Which OSPF LSA type does an ASBR use to originate a default route into an area？ （）