S & R Final Part 10

What network attack seeks to create a DoS for clients by preventing them from being able to obtain a DHCP lease?

DHCP starvation

Refer to the exhibit. Which destination MAC address is used when frames are sent from the workstation to the default gateway?

MAC address of the virtual router

Refer to the exhibit. If the IP addresses of the default gateway router and the DNS server are correct, what is the configuration problem?

The IP address of the default gateway router is not contained in the excluded address list.

Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem?

The encapsulation dot1Q 5 command contains the wrong VLAN.

Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?

broadcast DHCPREQUEST

Match each DHCP message type with its description. (Not all options are used.)

DHCPACK- the DHCP server confirming that the address lease has been accepted DHCPREQUEST- the client accepting the IP address provided by the DHCP server DHCPDISCOVER- a client initiating a message to a DHCP server DHCPOFFER- a DHCP server responding to the initial request by the client

Match the purpose with its DHCP message type. (Not all options are used.)

DHCPREQUEST- a message that is used to identify the explicit and lease offer to accept DHCPDISCOVER- a message that is used to locate any available DHCP server on a network DHCPOFFER- a message that is used to suggest a lease to a client DHCPACK- a message that is used to acknowledge that the lease is successful

Refer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic?

It identifies the VLAN number.

Which protocol adds security to remote connections?

SSH

After a host has generated an IPv6 address by using the DHCPv6 or SLAAC process, how does the host verify that the address is unique and therefore usable?

The host sends an ICMPv6 neighbor solicitation message to the DHCP or SLAAC-learned address and if no neighbor advertisement is returned, the address is considered unique.