An associate configured a serial connection on Router1 to use PPP with authentication. You execute the debug ppp negotiation command on the router and receive the following output: Which of the following statements are true? (Choose all that apply.) A. the credentials are being sent in clear text B. the connection failed C. the peer’s […]

You have a Frame Relay topology that is currently a hub and spoke using a single physical serial interface on the hub router with the default network type. OSPF is also running on the interface. You execute the following command: ip ospf network point-to-point What would be the effect of executing this command on the […]

Examine the output of the show frame-relay map command: Which of the following statements is true of the configuration of R1? A. Neither PVC is up B. A frame-relay map statement was used to manually map the IP address to the DLCI on both PVCs C. The DLCIs for both PVCs were learned using inverse […]

An associate of yours configured a PPPoE connection. You have been alerted by a vulnerability tester that by using a sniffer, he was able to learn the connection credentials. What type of authentication must your associate have configured on the connection? A. PAP B. 802.1x C. CHAP D. IPsec Explanation: The method used must have […]

In the Active Discovery phase of PPPoE, which of the following is NOT verified by the Broadband Network gateway (BNG) to prevent spoofing? A. source MAC address B. arriving access interface C. PPPoE session ID D. destination MAC address Explanation: The destination MAC address is the address of the BNG, so there is no need […]

You are configuring a 6to4 tunnel. You want to translate the IPv4 address 192.168.50.4 to the IPv6 address for the tunnel. What would be the correct translation? A. 2002:c0a8:3204::/16 B. 2002:c0a8:9901::/48 C. 2002:c0a8:3204::/48 D. c0a8:3204:2002::/16 Explanation: When implementing an automatic 6to4 tunnel, each IPv6 site receives a /48-bit prefix. The hexadecimal equivalent of the IPv4 […]

You just discovered that a ping packet sent from one of the devices to another took a different path in the return than it did on its way to the destination. What behavior caused this? A. Windowing B. Global synchronization C. MSS D. Asymmetric routing Explanation: This behavior is caused by asymmetric routing. This is […]

Which of the following are valid IPv4 to IPv6 migration strategies? (Choose two.) A. DHCP B. Tunnels C. Dual-stack D. Encapsulating IPv4 into IPv6 Explanation: Tunnels and dual-stack are valid IPv4 to IPv6 migration strategies. Tunneling mechanisms can transport IPv6 across an IPv4 infrastructure. Cisco supports the following types of tunneling for this purpose: • […]

Which of the following statements is TRUE concerning a 6to4 tunnel? A. The IPv6 packet is encapsulated in an IPv4 packet using an IPv4 protocol type of 41. B. The 6to4 tunnel method includes a 20-byte IPv6 header with no options and an IPv4 payload. C. The maximum transmission unit is increased by 20 octets […]

Refer to the following set of commands: Which of the following statements is TRUE about the given set of commands? A. IPv4 and IPv6 are running simultaneously on rtrA B. The IPv4 address is translated to an IPv6 address C. The IPv6 address is an IPv4-compatible address D. A tunnel is created for the interoperability […]