Question 1
Which two types of protocols use VLAN 1 as the default? (Choose two)

A. CDP
B. STP
C. VTP
D. ?
E. ?

Answer: A C

Explanation

VLAN 1 is always used for CDP, VTP, PAgP traffic (except DTP uses native VLAN) even if VLAN 1 is not the native VLAN. If VLAN 1 is not the native VLAN then CDP, VTP, PAgP traffic will be tagged on the trunk.

Question 2
Which two statements about LLDP frames are true? (Choose two)

A. LLDP frame sends to multicast address.
B. LLDP frame has its own CRC.
C. LLDP frame contains unicast address within its fields.
D. LLDP frame consists of sequence of TLVs.
E. ?

Answer: A D

Question 3

Which command on a switchport can cause LLDP to accept LLDP packets but not send them?

A. lldp run
B. lldp advertise
C. lldp receive
D. no lldp transmit

Answer: D

Explanation

The command “no lldp transmit” disallows sending LLDP packets on the interface.

Reference: https://www.cisco.com/c/en/us/td/docs/wireless/access_point/atnms-ap-82/configuration/guide/cg-82-book/cg-chap-LLDP.pdf

Note: The “lldp receive” command enables the reception of LLDP packets on an interface.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/system_management/configuration/guide/sm_nx_os_cg/sm_lldp.html

Question 4
A question about which is true about CDP? (Choose two)

A. disabled when native VLAN mismatched
B. can be disable on interface only
C. send periodic broadcast
D. send periodic multicast

Answer: A D

Question 5
Which statement is true about CDP?

A. CDP sends updates every 60 seconds
B. CDP does not support SNMP
C. ?
D. ?

Answer: A

Question 6
What command set the interval lldp send updates to its neighbors?

A. LLDP tlv-select
B. LLDP timer
C. LLDP transmit
D. ?

Answer: B

Explanation

The command “lldp timer rate” is used to set the sending frequency of LLDP updates in seconds. The range is 5 to 65534 seconds; the default is 30 seconds.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_58_se/configuration/guide/2960scg/swlldp.pdf

Question 7
Which two statements about LLDP are true? (Choose two)

A. Switches can run LLDP and Cisco Discovery Protocol simultaneously
B. When it is enabled on a switch, Cisco Discovery Protocol must be disabled
C. When LLDP is enabled globally, it is enabled on all ports including tunnel ports
D. Devices with LLDP configured send advertisement messages to a unicast address on a periodic basis
E. Devices with LLDP configured send advertisement messages to a multicast address on a periodic basis

Answer: A E

Explanation

LLDP and CDP can run simultaneously. LDDP uses multicast address 01-80-C2-00-00-0E and the default time between protocol frames is 30 seconds

Question 8Which two statements about frame LLDP is true?

A. Frame has destination multicast address
B. LLDP data unit has sequence of Type-length-Value (TLVs)
C. Frame has CRC

Answer: A B

Question 9
What is the default interval at which Cisco devices send Cisco Discovery Protocol advertisements?

A. 30 seconds
B. 60 seconds
C. 120 seconds
D. 300 seconds

Answer: B