Quiz

Question 1

Which of the following DHCP messages types will always be discarded if received on a DHCP snooping untrusted interface? (select three)

  1. DISCOVER

  2. REQUEST

  3. NAK

  4. OFFER

  5. DECLINE

  6. RELEASE

  7. ACK

Solution

  1. NAK

  1. OFFER

  1. ACK

Question 2

Which of the following is NOT stored in the DHCP snooping binding database?

  1. IP address

  2. Interface

  3. VLAN

  4. Default gateway

  5. MAC address

Solution

  1. Default gateway

Question 3

Which of the following are functions of DHCP snooping? (select two)

  1. Limiting the rate of DHCP messages

  2. Filtering DHCP messages on trusted ports

  3. Filtering DHCP messages on untrusted ports

  4. Filtering all DHCP messages

Solution

  1. Limiting the rate of DHCP messages

  1. Filtering DHCP messages on untrusted ports

Question 4

When DHCP snooping inspects a DHCP DISCOVER message that arrives on an untrusted interface, what does it check? (select the two best answers)

  1. Source MAC address

  2. CHADDR

  3. IP address

  4. Interface

Solution

  1. Source MAC address

  1. CHADDR

Question 5

DHCP snooping rate-limiting is configured on SW1's G0/1 interface. What happens if DHCP messages are received on G0/1 at a rate faster than the configured limit?

  1. The messages that cross the limit will be dropped

  2. The interface will be disabled

  3. All DHCP messages on the interface will be dropped

  4. A warning syslog message will be displayed

Solution

  1. The interface will be disabled

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