Exhibit:

Which action resolves the authentication problem?

• A.Configure the user name on the TACACS+ server
• B.Configure the UDP port 1812 to be allowed on the TACACS+ server
• C.Configure the TCP port 49 to be reachable by the router
• D.Configure the same password between the TACACS+ server and router.

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Refer to the exhibit.

A network administrator is trying to switch to the privileged EXEC level on R1 but failed. Which configuration resolves the issue?

• A.tacass server enable-password Cisco@123
• B.enable-password Cisco@123
• C.tacacs-server enable-password Cisco@123
• D.Enable password Cisco@123

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Refer to the exhibit.

Which routes from OSPF process 5 are redistributed into EIGRP?

• A.only E1 subnets matching prefix listTO-OS1
• B.only E2 subnets matching access list TO-OSPF
• C.E1 and E2 subnets matching access list TO-OSPF
• D.E1 and E2 subnets matching prefix list TO-OSPF

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Refer to the exhibit.

After applying IPsec, the engineer observed that the DMVPN tunnel went down, and both spoke-to-spoke and hub were not establishing.
Which two actions resolved the issue? (Choose two.)

• A.Configure the crypto isakmp key cisco address 192.1.1.1 on R2 and R3.
• B.Remove the crypto isakmp key cisco address 10.1.1.1. on R2 and R3.
• C.Configure the mode from mode tunnel to mode transport on R3.
• D.Change the mode from mode transport to mode tunnel on R2.
• E.Configure the crypto isakmp key cisco address 0.0.0.0 on R2 and R3.

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Drag and drop the DHCP messages from the left onto the correct uses on the right.

Correct Answer:

Reference:
DHCPINFORM: If a client has obtained a network address through some other means or has a manually configured IP address, a client workstation may use a DHCPINFORM request message to obtain other local configuration parameters, such as the domain name and Domain Name Servers (DNSs). DHCP servers receiving a DHCPINFORM message construct a DHCPACK message with any local configuration parameters appropriate for the client without allocating a new IP address. This DHCPACK will be sent unicast to the client.
DHCPNAK: If the selected server is unable to satisfy the DHCPREQUEST message, the DHCP server will respond with a DHCPNAK message. When the client receives a DHCPNAK message, or does not receive a response to a DHCPREQUEST message, the client restarts the configuration process by going into the Requesting state. The client will retransmit the DHCPREQUEST at least four times within 60 seconds before restarting the Initializing state.
DHCPACK: After the DHCP server receives the DHCPREQUEST, it acknowledges the request with a DHCPACK message, thus completing the initialization process.
DHCPDECLINE: The client receives the DHCPACK and will optionally perform a final check on the parameters. The client performs this procedure by sending Address Resolution Protocol (ARP) requests for the IP address provided in the DHCPACK. If the client detects that the address is already in use by receiving a reply to the ARP request, the client will send a DHCPDECLINE message to the server and restart the configuration process by going into the Requesting state.
https://www.cisco.com/c/en/us/support/docs/ip/dynamic-address-allocation-resolution/27470-100.html

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