Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms?

Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?

On which options are standard access lists based?

Which IPv6 routing protocol uses multicast group FF02::9 to send updates?

What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?

Which name describes an IPv6 host-enabled tunneling technique that uses IPv4 UDP, does not require dedicated gateway tunnels, and can pass through existing IPv4 NAT gateways?

A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local network. How can you accomplish this task, using the fewest physical interfaces and without decreasing network performance?

When you are troubleshooting an ACL issue on a router, which command can help you to verify which interfaces are affected by the ACL?

VLAN 3 is not yet configured on your switch. What happens if you set the switchport access vlan 3 command in interface configuration mode?

Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over Fast Ethernet?