H12-224 무료 덤프문제 온라인 액세스

Which of the following is the purpose of access security optimization?

• A.To ensure secure access to key services
• B.To prevent or reduce external network attacks and harm
• C.To ensure that sensitive management information will not be intercepted
• D.To achieve secure user access control

Which of the following LSA packets carries master/slave relationship information

• A.Hello packet
• B.DD. packet
• C.LSA Update packet
• D.LSA Request packet

Which of the following statements regarding MAC address spoofing attacks is false?

• A.Attackers initiate MAC address spoofing attacks using the MAC address learning mechanism
• B.When MAC address spoofing attacks occur the switch may learn incorrect mapping between MAC address and IP addresses
• C.When MAC address spoofing attacks occur the switch may sent packets to the attacker
• D.Attackers send data frames with forged MAC address to the switch to initiate MAC address spoofing attacks

BGP is an inter domain routing protocol, which of the following statements regarding BGP are true?

• A.BGP supports plaintext authentication
• B.BGP uses a reliable transport protocol
• C.BGP supports automatic neighbor discovery
• D.BGP supports rich routing policies

AT which layer does a packet filtering firewall check data packets?

• A.Link Layer
• B.Application layer
• C.Network layer
• D.Physical layer