ICND2 - Part 1 Quiz Flashcards by Nicholas Phelps

If a switch has 3 VLANs with 2 computers each how many broadcast domains exist?

a. 1
b. 2
c. 3
d. 6

c. 3

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VLAN tagging is the process of:

a. Adding a VLAN ID field to the frame header to help identify what VLAN the frame belongs to.
b. Adding a VLAN ID field to the frame trailer to help identify what VLAN the frame belongs to.
c. The process of tagging a frame with a VLAN on an access port so the switch knows what VLAN it belongs to.
d. Giving a frame a VLAN ID based on the MAC table.

a. Adding a VLAN ID field to the frame header to help identify what VLAN the frame belongs to.

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If 2 VLANs exist on a switch, what is needed to communicate between them? (Choose 2)

a. Another switch.
b. A bridge.
c. A router.
d. Replace the switch with a multilayer switch.

c. A router.

d. Replace the switch with a multilayer switch.

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What command enables routing on a multilayer switch?

a. Router ospf 1
b. Router eigrp 10
c. IP route
d. IP routing

d. IP routing

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What mode does a switch default to per interface?

a. Access
b. Trunk
c. Desirable
d. Auto

d. Auto

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If I wanted to see all VLANs assigned to access ports what command would I use?

a. Show vlan brief
b. Show interfaces trunk
c. Show ip interface brief
d. Show run

a. Show vlan brief

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What are the three modes of VTP? (Choose 3)

a. Client
b. Host
c. Server
d. Transparent
e. Invisible

a. Client
c. Server
d. Transparent

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What is the purpose of STP?

a. To maintain a loop free layer 3 network.
b. To maintain a loop free hub network.
c. To maintain a loop free layer 2 switched network.
d. To maintain a loop free layer 2 routed network.

c. To maintain a loop free layer 2 switched network.

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What are three things STP eliminates? (Choose 3)

a. MAC table instability
b. Split-horizon
c. Poison-Reverse
d. Broadcast Storms
e. Collisions
f. Multiple frame transmission

a. MAC table instability
d. Broadcast Storms
f. Multiple frame transmission

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What is first used in the BID to elect the root bridge?

a. Priority
b. MAC Address
c. Port number
d. Bandwidth

a. Priority

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Switches exchange information in STP with what?

a. BDU
b. PDU
c. BPDU
d. BPU

c. BPDU

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The root switch has all ports in a forwarding state because they are root ports.

a. True
b. False

b. False

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A designated port is a switchport that has advertised the lowest cost hello onto a LAN segment.

a. True
b. False

a. True

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The hello timer on a switch is every how many seconds?

a. 1
b. 2
c. 4
d. 15

b. 2

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In STP, the listening state:

a. Does not forward frames.
b. Keeps old stale (unused) MAC table entries.
c. Forwards frames.
d. Removes all MAC table entries as they could be causing loops.

a. Does not forward frames.

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Rapid-STP and 802.1D STP are able to be used together.

a. True
b. False

a. True

The discarding state in RSTP is called the ______ state in STP?

a. Disabled
b. Shutdown
c. Down
d. Blocking

d. Blocking

What is the purpose of BPDU guard?

a. To check for BPDUs on a port and send an alert.
b. To check for BPDUs on a port and disable the port if detected.
c. To check for BPDUs on a port and enable the port is detected.
d. To check for BPDUs on a port and shut the port down.

b. To check for BPDUs on a port and disable the port if detected.

What is EtherChannel?

a. allows two neighboring switches to treat two parallel links between each other as a single logical link.
b. allows two neighboring switches to treat multiple parallel links between each other as a multi link
c. Allows two neighboring switches to treat multiple parallel links between each other as a single logical link.
d. Allows two neighboring switches to treat multiple trunk links between each other as a single logical link.

c. Allows two neighboring switches to treat multiple parallel links between each other as a single logical link.

The channel-group number on the distant switch must match with the first switch.

a. True
b. False

b. False

A channel-group mode desirable indicates which EtherChannel protocol?

a. LACP
b. PagP
c. On

b. PagP

How many root ports does a switch have if it has 5 VLANs with PVST?

a. 1
b. 5
c. 10
d. 2

b. 5

What occurs if the speed setting is changed on both interfaces and they do not match?

a. The interface operates at the slowest speed configured.
b. The interface goes into a shutdown state.
c. The interface goes into a down state.
d. The interface remains up but unable to transmit traffic.

c. The interface goes into a down state.

Why would a switch send a frame from VLAN1 to another switch yet arrive destined for VLAN2 if no layer 3 device is involved?

a. The switch is multilayer capable.
b. There is a native vlan mismatch.
c. This is not a possible situation.
d. The trunk link is set to permit both VLANs.

b. There is a native vlan mismatch.

What is VTP? a. A protocol to share VLANs across access ports to all switches. b. A protocol to share VLANs across trunk ports to all switches. c. A protocol that shares VLANs based on which switches are part of the VTP domain. d. A protocol that shares VLANs based on the username and password set on each switch.

c. A protocol that shares VLANs based on which switches are part of the VTP domain.

What mode in VTP does not participate in the VTP process? a. Server b. Client c. Invisible d. Host e. Transparent

e. Transparent

What must be the same in VTP in order to use VTP? a. Hostnames and passwords b. Domains and passwords c. Usernames and passwords d. Domains and usernames

b. Domains and passwords

Where is the VLAN configuration stored? a. NVRAM b. Running-Configuration c. Startup-Configuration d. NVROM e. Vlan.dat

e. Vlan.dat

What must be implemented to use 802.1x? a. A AAA server. b. A switch with a RADIUS configuration. c. A switch with a TACACS+ configuration. d. A token to log onto the devices using 802.1x

a. A AAA server.

30. Why is EAP needed? a. 802.1x is a layer 2 protocol and needs to be in place from the supplicant to the authenticator. b. 802.1x is a layer 3 protocol and needs to be in place from the supplicant all the way to the server. c. Only TACACS+ needs EAP as it is a TCP protocol utilizing layer 2.

a. 802.1x is a layer 2 protocol and needs to be in place from the supplicant to the authenticator.

What ports does RADIUS use? (Choose 2) a. 49 b. 1645 c. 1813 d. 1812 e. 94

c. 1813 | d. 1812

Why is DHCP snooping implemented? a. Helps eliminate false DHCP servers from taking over user traffic by acting as a DHCP server. b. Helps eliminate unnecessary DHCP traffic. c. Helps eliminate DORA messages coming from other networks. d. Helps eliminate false DHCP messages due to someone spamming the DHCP server.

a. Helps eliminate false DHCP servers from taking over user traffic by acting as a DHCP server.

How is DHCP Snooping enabled? (Choose 2) a. Per user b. Per port c. Per VLAN d. Per MAC

b. Per port | c. Per VLAN

Why is switch stacking beneficial? a. It enables a stack of switches to share the same power source for redundancy. b. It enables a stack of switches to be cross connected with crossover cables for increased redundancy. c. It enables a stack of switches to act as one switch with all management done from one switch. d. It enables a stack of switches to act as one switch for redundancy.

c. It enables a stack of switches to act as one switch with all management done from one switch.