Which statement best describes OSPF external LSAs （type 5）？（）

In GLBP， which router will answer on client ARP requests？（）

What is the STP root guard feature designed to prevent？（）

Phase I and Phase II DMVPN differ in terms of which of these characteristics？（）

Choose two commands that are required to enable multicast on a router， when it is known that the receivers use a specific functionality of IGMPv3.（）

Internet Protocol version 6 （IPv6） is the next-generation Internet Layer protocol for packet-switched internetworks and the Internet. IPv6 router solicitation is（）

Which IOS security feature is configured by the ip inspect inspection-name {in  out} command？（）

Which switch port error is an indication of duplex mismatches on 10/100/1000 IEEE 802.3u  Gigabit Ethernet ports？（）

Which statement is true of a source that wants to transmit multicast traffic to group 239.1.1.1？（）

You are the network administrator of a Layer 3 switched network. Users in one VLAN are complaining that access to the server VLAN is very slow from time to time. Traffic in the local VLAN works without any issue， and users in other VLANs do not have any complaint to reach the server VLAN. What is most likely the cause of this issue？（）