chp 8 200

How far into the lease period does a DHCP client begin requesting renewal of the IP address?

50 percent, or about 2 days into the lease

What is the default lease period for DHCP dynamic address allocation?

8 days

What resource record type defines an IPv6 host address in DNS?

AAAA record

What is the first step in troubleshooting an issue where a single computer is unable to lease an address?

Confirming that the computer has a physical connection to the network

What is the first packet sent to a DHCP server when a computer boots up?

DHCPDISCOVER

DHCP server will only provide IP address to a client, but any additional TCP/IP configuration will needs to be completed on the client itself.

F

WINS servers needs to be close to routers to help expedite forwarding NetBIOS broadcast traffic.

F

nslookup command will only help finding the IP address of a host.

F

Felicia is drafting an email to her colleague Rhonda. After Felicia types out the email, she enters the email address [email protected] and clicks Send. Felicia's email server uses the email address typed to locate the recipient email server. Which DNS resource record for zoneA.com allows Felicia's email server to locate the recipient email server?

MX

Identify a vital service provided by secondary DNS servers.

Secondary DNS servers respond to DNS lookup requests using read-only zone files.

The first step that needs to be completed after installing a DHCP server is to create a a DHCP scope.

T

When some computers have incorrect address information, you should check for the presence of unauthorized DHCP servers on the network and remove them if found

T

Raymond and Lin are facing network issues on their computers. Rayna, the administrator, is troubleshooting the issue. She notices that Raymond and Lin's computers are using the same IP address, 192.167.1.85. If the organization's network uses a DHCP server, which of the following most likely caused this issue?

The IP addresses were configured manually

Kaya is an administrator at Kelvin Computing. Benjamin, a user, wants to access a shared folder on SERVERA, so he uses the UNC \\servera\share to access the folder. His computer then sends out a broadcast to the network to resolve the name SERVERA. Because of the broadcast, all computers on the LAN interpret it and causes additional processing that interferes with other operations. What can Kaya do to avoid this additional overhead?

install WINS

What are the servers at the top of the DNS hierarchy called?

root servers