Tuesday, 1 September 2015

Top 60 DHCP Objective type Questions and Answers

1. What is the purpose of the DHCP server?
A. to provide storage for email
B. to translate URLs to IP addresses
C. to translate IPv4 addresses to MAC addresses
D. to provide an IP configuration information to hosts
Answer: D
2. How is the message sent from a PC2 when is first powers on and attempts to contact the DHCP Server?
A. Layer 3 unicast
B. Layer 3 broadcast
C. Layer 3 multicast
D. Without any Layer 3 encapsulation
Answer: B
3. What is the default behavior of R1 when PC1 requests service from DHCP server?
A. Drop the request
B. Broadcast the request to R2 and R3
C. Forward the request to R2
D. Broadcast the request to R2, R3 and ISP
Answer: A
4. Refer to the exhibit. Which rule does the DHCP server use when there is an IP address conflict?
A. The address is removed from the pool until the conflict is resolved.
B. The address remains in the pool until the conflict is resolved.
C. Only the IP detected by Gratuitous ARP is removed from the pool.
D. Only the IP detected by Ping is removed from the pool.
E. The IP will be shown, even after the conflict is resolved.
Answer: A

5. How does a DHCP server dynamically assign IP address to host?
A. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
B. Addresses are assigned for a fixed period of time. At the end of period, a new quest for an address must be made, and another address is then assigned.
C. Addresses are leased to host. A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.
D. Addresses are permanently assigned so that the host uses the same address at all times.
Answer: C

6.  Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two)
A. Set the IP gateway to be used by the network.
B. Perform host discovery used DHCPDISCOVER message.
C. Configure IP address parameters from DHCP server to a host.
D. Provide an easy management of layer 3 devices.
E. Monitor IP performance using the DHCP server.
F. Assign and renew IP address from the default pool.
Answer: C F

7. Which statement is correct regarding the operation of DHCP?
A. A DHCP client uses a ping to detect address conflicts.
B. A DHCP server uses a gratuitous ARP to detect DHCP clients.
C. A DHCP client uses a gratuitous ARP to detect a DHCP server.
D. If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.
E. If an address conflict is detected, the address is removed from the pool for an amount of time configurable by the administrator.
F. If an address conflict is detected, the address is removed from the pool and will not be reused until the server is rebooted.
Answer: D

8. Which statements are true about the DHCP quarantine method? (Select two.)
A. The DNS server for a quarantine subnet is assigned by the enterprise DHCP server.
B. A quarantine subnet consists of a set of IP addresses dynamically assigned to endpoints.
C. Endpoint Integrity can be managed for endpoints with static IP addresses by defining exceptions.
D. A non-quarantine IP address is assigned by the NAC 800 after an endpoint passes integrity testing.
E. Port 2 of the NAC 800 can be connected to a switch that provides a path to multiple DHCP servers.
Answer: BE
9. A ProCurve 3500yl switch is connected to port 1 of a ProCurve NAC 800 and a DHCP server is connected to port 2. The DHCP server IP address is The NAC 800 IP address is The IP address is assigned to VLAN 24 on the switch.
Which additional configuration settings would be appropriate for supporting a non-quarantine subnet and a quarantine subnet? (Select two.)
A. on the switch, a multinetted IP address of assigned to VLAN 24
B. on the NAC 800, the IP address of the DHCP server specified as
C. on the NAC 800, IP addresses through defined as exceptions
D. on the switch, the IP helper addresses and defined for VLAN 24
E. on the DHCP server, one scope for and a second scope for
Answer: AD

10. Which configuration task is applicable to the ProCurve NAC 800 inline quarantine method?
A. Enable the internal firewall.
B. Specify one or more quarantine subnets.
C. Add IP address entries to the Accessible Services List.
D. Select the port to be used for connection to the external network.
E. Identify the static and DHCP IP address ranges of endpoints to monitor.
Answer: C

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