Module 8 Review Quiz

Which DHCP option number provides a default gateway router?

003

You wish to provide access to Web resources in another organization. However, the associated A records for these resources are stored in a zone file on a DNS server in the other organization that is not publicly registered. What can you configure on your organization's DNS server to allow access to these resources? (Choose all that apply.)

A stub zone that forwards requests to the other organization's DNS server, A conditional forwarder that forwards requests to the other organization's DNS server, & A secondary zone that copies resource records from the zone on the other organization's DNS server.

A user complains that they are unable to contact a specific server in your organization. You remember that you recently modified the A record for this server on your organization's Active Directory-integrated DNS server. Which troubleshooting step should you try first to remedy the issue?

Clear the DNS cache on the user's computer

Your organization has two WINS servers to provide for NetBIOS name resolution. What can you do to ensure that each WINS server shares its NetBIOS name records with the other server?

Configure the two servers as replication partners

Which two of the following tasks can you perform to provide fault tolerance for two DHCP servers in the DMZ? (Choose two answers.)

Ensure that DHCP relay agents in the organization are configured with the IP address of both DHCP servers & Configure DHCP failover in either load balance or hot standby mode for all scopes.

DHCP reservations must use the DHCP options from their scope.

False

DHCP servers respond to DHCPDISCOVER packets received from DHCP clients or DHCP relay agents with a DHCPACK packet.

False

The default lease time of 8 days for a DHCP scope is appropriate for networks that primarily contain mobile devices, but should be reduce for networks that primarily contain desktop PCs.

False

Windows computers contact their DNS server at boot time to create or update their host resource records. This feature is called zone transfer.

False

Which of the following are optional components of a DHCP scope?

IP address exclusions, DHCP options, DHCP policy, & Reservation.

Which two resource records can you create in a zone to provide the FQDN of an email server for the zone, as well as associate this FQDN with an IPv6 address? (Choose two answers.)

MX & AAAA

Which of the following are authoritative DNS server types? (Choose all that apply.)

Primary, Active Directory-integrated primary, & Secondary

Which resource record stores zone transfer settings?

SOA

Which of the following represents the maximum amount of time that a DNS server or resolver is allowed to cache the result of a forward lookup?

TTL

Which of the following are valid reasons to deploy a WINS server? (Choose all that apply.)

To reduce NetBIOS name broadcasts on LANs in an organization & To allow computers in one LAN to resolve NetBIOS names in another LAN

DHCP servers can be configured to dynamically update host and PTR records for legacy DHCP clients and DHCP clients that do not use a Microsoft operating system.

True

If a DNS server does not contain a zone file that contains the resource records for a lookup, and is not configured as a conditional or default forwarder, it will use its root hints file to perform a recursive query.

True

NetBIOS name records are automatically created on a WINS server by computers that are configured to use the WINS server.

True

Scavenging can be configured to remove stale resource records that were added to a zone using dynamic update.

True

To prevent a DHCP server from leasing an IPv4 address that has been manually configured on a computer on the network, you can configure a DHCP server to send one or more ping requests to an IPv4 address before leasing it.

True