RouterMain is configured to use EIGRP. You issue the show ip route command on RouterMain and receive the following partial output: By default, what will EIGRP use as the metric value of a summarized 10.0.0.0 network? (Select the best answer.) A. 2195456 B. 2297856 C. 2496256 D. 2681856 E. 2809856 Explanation: By default, Enhanced Interior […]

You issue the show ipv6 interface fa0/0 command and receive the following partial output: FastEthernet0/0 is up, line protocol is up IPv6 is enabled, linklocal address is FE80::11AA:22BB:33CC:44DD No Virtual linklocal address(es): No global unicast address is configured Joined group address(es): FF02::1 FF02::2 FF02::A Which of the following routing protocols is most likely running on […]

Which of the following are true of both OSPFv2 and OSPFv3? (Select 2 choices.) A. Both support IPv4. B. Both support IPv6. C. Both elect the BDR before electing the DR. D. Both use MD5 for secure communications. E. Both allow multiple OSPF instances to run on a link. Explanation: Open Shortest Path First version […]

Which of the following commands enables IP source guard with source IP and MAC address filtering on an interface? (Select the best answer.) A. ip dhcp snooping B. ip verifyunicast source reachablevia C. ip verify source portsecurity D. ip source binding E. switchport portsecurity Explanation: The ip verify source portsecurity command enables IP source guard […]

Which of the following best describes the function of unicast RPF? (Select the best answer.) A. Unicast RPF scans a packet to determine whether the packet contains malware. B. Unicast RPF verifies the reachability of the source IP address of a packet. C. Unicast RPF ensures that priority traffic is transmitted in a timely fashion. […]

Which switching method always checks for CRC errors before forwarding the frame? (Select the best answer.) A. storeandforward B. cutthrough C. adaptive cutthrough D. FragmentFree Explanation: The store-and-forward switching method always checks for cyclic redundancy check (CRC) errors before forwarding the frame, thereby ensuring reliability. When the store-and-forward switching method is used, the switch receives […]

Which of the following statements are true regarding TACACS+? (Select 2 choices.) A. TACACS+ is a standard protocol created by IETF. B. TACACS+ separates the authentication, authorization, and accounting functions of AAA. C. TACACS+ encrypts only the password in AccessRequest packets. D. TACACS+ enables administrators to control access to configuration commands. E. TACACS+ uses UDP […]

Which of the following switches will be selected as the root bridge? (Select the best answer.) A. the switch with the lowest configured IP address B. the switch with the highest configured IP address C. the switch with the lowest MAC address D. the switch with the highest MAC address E. the switch with the […]

Which of the following statements best describe why WRED is useful for networks where the majority of traffic uses TCP? (Select 2 choices.) A. TCP packets that are dropped must be retransmitted. B. TCP packets cannot arrive out of sequence. C. TCP packets have large header sizes. D. TCP sources reduce traffic flow when congestion […]

You administer the OSPF network shown in the diagram above. All interface and OSPF parameters retain their default values. Which of the following statements is true regarding the path that packets from RouterA will follow to reach RouterC? (Select the best answer.) A. All packets will flow from RouterA to RouterB to RouterC. B. All […]