You want only his telnet stream to be able to access the server (address 1011.100). Then, you add the following ACL to the routing ring: nule5pemit cp source ny destination 1011.100000destination-porteq 23 rule 1l0 deny ip source any destination any. Then you apply that ACL to the ingress direction of the router's seial interface.
What type of message is allowed to pass through the router? (Multiple choice questions).

• A.Packet answer for the first sharded or non-sharded, using port 23 to access the server
• B.Non-first-of-its-kind packets that use port 21 to access the server
• C.Non-first-of-sharded messages to access other hosts
• D.A non-sharded, port 21-accessing packet
• E.Non-first-sharded messages that use port 23 to access the server's message

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The following statement about static VXLAN tunnel configuration is correct?

• A.NVE interface, and multiple VXLAN tunnels can create only one NVE interface
• B.A BD needs to create an NVE country, and when there are multiple BDs, multiple NVE interfaces must be created
• C.For a VXLAN tunnel, you need to create a corresponding NVE interface, in which you explicitly specify the source IP address and the destination IP address, so there are multiple VXLAN tunnels on the VTEP that must be vE interfaces. The destination address of the VXLAN tunnel is specified in the
• D.An NVE interface can be associated with multiple VNls, so you can create only one NVE interface when there are multiple BDs

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The following description of BGP loop protection is correct: multi-select

• A.Any update information received from the EBGP peer that contains its own AS number in the AS-PATH attribute is discarded via the AS-PATH attribute
• B.BGP routers do not announce any slaves. The EBGP peer comes to update the information to its EBGP peer
• C.Non-RR BGP routers do not announce any updates from IBGP peers to other IBGP peers
• D.Any routing information from an IBGP peer is advertised to the other IBGP peers

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What are some of the following misrepresentations about URPF, IPSG, and DAI technologies? (Multiple choice questions).

• A.URPF can be used to protect against DDoS spoofed source attacks.
• B.IPSG technology checks IP packets for source IP spoofing attack prevention, while DAI checks ARP packets to filter attack sources.
• C.DAI does not support manual configuration of binding tables.
• D.IPSG checks the source IP address and source MAC address of the IP packet, and DAI only checks the correspondence between the IP and the MAC.

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Regarding the certification of the ISIS protocol, there is a correct statement

• A.Connection authentication can realize the authentication of the hello messages of Leve-1 and Leve-2
• B.After configuring the connection authentication, the IIH issued by the router must carry the authentication TLV
• C.After configuring zone authentication, the router issues an IIH, SNP, LSP-strap-to-tape authentication TLV
• D.The two routers are configured for area authentication and interface authentication, and the passwords are the same, so the two can establish an isocopied relationship

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