Deck 11: Configuring DHCP

Question 1

​Where are DHCP database backups stored by default?

A) ​%systemroot%/System32/dhcp/dhcp.mdb
B) %systemroot%/System32/dhcp/DhcpCfg​
C) ​%systemroot%/System32/dhcp/backup/DhcpCfg
D) %systemroot%/System32/dhcp/dhcpbackup.txt​

Answer 1

C

Question 2

​A DHCPDISCOVER message is sent as a unicast packet.

Answer 2

False

Question 3

A DHCP server that sends information back to a client on what UDP port?​

A) ​67
B) ​68
C) ​69
D) ​70

Answer 3

B

Question 4

​A DHCPINFORM request sent by a client will receive what message number from a DHCP server?

A) ​5
B) ​6
C) ​7
D) ​8

Question 5

What is the absolute minimum value the DHCP lease duration can be set to?​

A) ​1 minute
B) ​5 minutes
C) ​10 minutes
D) ​30 minutes

Question 6

​How can an administrator attempt to automatically fix inconsistencies between DHCP summary lease information kept in the Registry and detailed lease information stored in the DHCP database?

A) ​By configuring failover and replicate failover scopes
B) ​By defining a superscope to include affected scopes
C) By using the Reconcile All Scopes option​
D) ​By using the Repair DHCP DB option

Question 7

What DHCP option within the DHCPREQUEST packet contains a client's FQDN?​

A) ​Option 60
B) ​Option 61
C) ​Option 80
D) ​Option 81

Question 8

The Windows Server DHCP relay agent function is configured as part of the Routing role service of the Remote Access server role.
​

Question 9

​Select below the predefined option within DHCP that may be necessary for some configurations of Windows Deployment Server?

A) ​044 WINS/NBNS Servers
B) ​046 WINS/NBT Node type
C) ​080 WDS config
D) ​060 PXEClient

Question 10

When using WDS,what two DHCP server options must be configured if the DHCP server is on a different server or different subnet from the WDS server?​

A) ​060 and 067
B) ​030 and 065
C) ​040 and 065
D) 066 and 067​

Question 11

How does a DHCP server respond to an IP request that can't be renewed?​

A) ​The server sends a DHCPACK
B) ​The server sends a DHCPNACK
C) ​The server does not respond
D) ​The server forwards the request

Question 12

​If a DHCP server does not respond to a client's first renewal request,how long will the client keep its current address until initiating the next lease renewal request?

A) ​60% of lease interval expired
B) ​75.5% of lease interval expired
C) ​80% of lease interval expired
D) ​87.5% of lease interval expired

Question 13

​Disabling a binding has what affect on a DHCP server?

A) ​The server no longer applies scope policies for the scope the binding is in
B) ​The server no longer listens to UDP port 68 on the disabled binding
C) ​The server no longer listens to UDP port 67 on the disabled binding
D) ​The server no longer accepts traffic from any relay agents

Question 14

A superscope is a special type of scope that allows a DHCP server to service multiple IPv4 subnets on multiple physical networks,using IPv4 or IPv6.​

Question 15

Select below the DHCP option that defines the DNS domain name that will be configured on DHCP clients:​

A) ​003
B) ​006
C) ​015
D) ​044

Question 16

At what point does a client send a unicast packet to the DHCP server to request a lease renewal for its current IP address?​

A) ​After 2 hours
B) ​After 4 hours
C) ​When the lease is 50% expired
D) ​When the lease is 80% expired

Question 17

The Vendor Class uses what option field within a DHCPDISCOVER packet?​

A) Option 60
B) ​Option 61
C) ​Option 80
D) ​Option 81

Question 18

When the ipconfig /release command is run,the DHCP client on the computer sends a DHCPRELEASE message out.​

Question 19

​What type of DHCP packet first initiates the IP address request sequence?

A) ​DHCPREQUEST
B) ​DHCPDISCOVER
C) ​DHCPOFFER
D) ​DHCPACK

Question 20

The DHCP server service can be configured to automatically discard A and PTR records when a lease is deleted.​

Question 21

What is an Organizationally Unique Identifier (OUI)?

Question 22

What is a client identifier (ClientID)?

Question 23

What can a DHCP server do to enable active conflict detection?

Question 24

The __________ is similar to Vendor Class,except that it uses custom values defined by an administrator.​

Question 25

How should the percentage of split be configured if load balancing is the goal rather than fault tolerance? How does this compare to the typical split configuration?

Question 26

Relay agent information is configured as DHCP option __________.

Question 27

Since DHCPDISCOVER packets are broadcast packets,how can a client get an IP address from a DHCP server on a remote subnet?

Question 28

​An IP address reservation is made by creating an association between an IP address and what type of client identifier?

A) ​NIC GUID
B) ​MAC address
C) User Class
D) ​Vendor Class

Question 29

If a Windows DHCP client does not receive a response from a DHCP server,​it will bind an ____________ address to the NIC and send DHCPDISCOVER messages every 5 minutes.

Question 30

How might vendor class information be used?

Question 31

What is the Preboot Execution Environment (PXE)used for?

Question 32

If both scope level policies and server level policies are configured,which takes precedence if there is a conflict?

Question 33

The ________ DHCP option is used to supply the client with default gateway settings.​

Question 34

In what server configuration window can the Network Access Protection (NAP)feature be enabled or disabled?

A) IPv4 Properties​
B) New Class
C) ​Option Type
D) ​Routing and Remote Access Server Setup Wizard

Question 35

The DHCP options defined at what level take precedence over all other levels?​

A) ​Server options
B) ​Scope options
C) ​Policy options
D) ​Reservation options

Question 36

How does a DHCP client respond if it determines that a leased IP address is already in use?

Question 37

​How can a DHCP server be configured to not register A and PTR records if a DNS record with a different name already exists?

A) ​By using the Name Protection option
B) ​By using the "Disable dynamic updates for DNS PTR records" option
C) ​By enabling the "Discard A and PTR records when lease is deleted" option
D) ​By enabling the "Always dynamically update DNS records" option

Question 38

What must be done before a Windows DHCP server with a scope defined can begin providing services?

A) ​The server must be updated
B) ​The server must be authorized
C) ​The server must be authenticated
D) ​The server must be validated
Enter the appropriate word(s)to complete the statement.

Question 39

How does a de facto exclusion differ from a regular exclusion?