Free Huawei H12-221-ENU Exam Dumps Questions & Answers

What are the benefits of OSPF zoning? (Multiple Choice)

• A.  The proliferation of flooding LSAs is limited to a single area.
• B.  The routers in one area can understand the topology details outside their area.
• C.  LSA can also be reduced with the division of the area, reducing the consumption of router CPU.
• D.  The size of the LSDB can be reduced to reduce the memory consumption of the router.

Which of the following description is wrong about the BGP UPDATE message?

• A.  In general, UPDATE messages are sent after Keepalive
• B.  UPDATE message is sent in multicast form
• C.  UPDATE message is used as routing information between BGP peers
• D.  UPDATE message can carry multiple reachable routing information.

About the description of well-known attributes in BGP, which is correct? (Multiple Choice)

• A.  BGP must recognize all well-known attributes.
• B.  The well-known attributes are divided into two types: recognized mandatory and optional transition.
• C.  Well-known attributes are identifiled by all BGP routers and must exist in the Update message.
• D.  Well-known attributes are identifiled by all BGP routers, but it does not need to exist in the Update message.

An Access Control List (ACL) can be used to match routing information or the address of a packet. It can only distinguish between certain types of packets and cannot filter packets.

• A.  FALSE
• B.  TRUE

Which methods can modify the interface cost of OSPF? (Multiple choice)

• A.  In the ospf view, run the interface cost command.
• B.  In the interface view, run the bandwidth-reference command.
• C.  In the ospf view, run the bandwidth-reference
• D.  In the interface view, run the ospf cost command.