400-201 試験問題を無料オンラインアクセス

Which statement about the Link Control Protocol (LCP) is true?

• A.LCP is used for PPP CHAP authentication.
• B.LCP is used for PPP over Frame Relay (PPPoFR) setup.
• C.LCP is used for PPP over Ethernet (PPPoE) setup.
• D.LCP is used for PPP over ATM (PPPoA) setup.
• E.LCP is used for basic PPP link setup and operation.

Which three security mechanisms are used to mitigate or protect against DoS attacks that are targeted at a router? (Choose three)

• A.BFD
• B.CoPP
• C.FRR
• D.NSR
• E.GSTM
• F.uRPF

Which command will display the MPLS label binding for IP prefix 1.1.1.0 on the router?

• A.A and B both will show the binding.
• B.show tag-switching tdp binding 1.1.1.0/24
• C.show tag-switching tdp bindings neighbor 1.1.1.0
• D.show tag-switching interface e0/0
• E.All of the above.

What ISIS TLVs are used to support MPLS traffic Engineering? ( Choose three)

• A.TLV 134 Router ID
• B.TLV 22 Extended IS neighbor
• C.TLV 128 IP Internal Reachability
• D.TLV 132 IP interface Address
• E.TLV 10 Authentication Information
• F.TLV 135 IS Reachability

DRAG DROP
Refer to the exhibit.

PE1 and PE2 has a Layer 2 VPN over a GRE tunnel. This GRE tunnel built between P1 and P2 has LDP enabled. Consider a packet capture of the packets from CE1 and CE2 at P1 and R1 link. Drag the headers on the left and drop them on the right in the order of the encapsulation, starting from the inner header (at the top) to the outer header (at the bottom).

正解：

Explanation: