Subnets And Vlans

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Question 1
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True/False

 Network segmentation decreases both performance and security on a network.

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False

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Question 2
Free
True/False

 Only Class B and Class C networks can be subnetted.

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True

False

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Question 3
Free
True/False

 By default, the native VLAN is the same as the default VLAN.

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False

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Question 4
Free
True/False

 A native VLAN mismatch occurs when two access ports that are connected to each other are both tagging traffic with different VLAN IDs.

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False

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Question 5
Free
True/False

 All that is needed to provide communication between two VLANs is a DHCP relay agent.

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False

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Question 6
True/False

 Network segmentation at Layer 2 of the OSI model is accomplished using VLANs.

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True
False
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Question 7
True/False

 A /24 CIDR block is equivalent to a 255.255.255.0 subnet mask.

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True
False
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Question 8
True/False

 IPv6 addressing does not utilize classful addressing, therefore every IPv6 address is classless.

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True
False
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Question 9
True/False

 An unmanaged switch can still support the creation of VLANs, provided there is an interface for configuration.

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False
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Question 10
True/False

 In order to identify the transmissions that belong to each VLAN, a switch will add a tag to Ethernet frames that identifies the port through which they arrive at the switch.

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True
False
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Question 11
Multiple Choice

 A network with a CIDR notation of /26 would have what subnet mask?

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A
255.255.255.0
B
255.255.255.192
C
255.255.255.224
D
255.255.255.240
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Question 12
Multiple Choice

 A network with 10 bits remaining for the host portion will have how many usable host addresses?

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A
510
B
1022
C
2046
D
4192
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Question 13
Multiple Choice

 An interface that manages traffic from multiple VLANs is known by what term?

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A
access port
B
aggregation port
C
trunk port
D
egress port
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Question 14
Multiple Choice

 Which of the following suggestions can help prevent VLAN hopping attacks on a network?

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A
Install an additional switch to isolate traffic.
B
Disable auto trunking and move native VLANs to unused VLANs.
C
Install a router to process the untagged traffic on the VLAN.
D
Use MAC address filtering.
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Question 15
Multiple Choice

 With VTP, where is the VLAN database stored?

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A
On the router responsible for maintaining the VTP database.
B
On the switch that is known as the stack master.
C
On the switch that is configured as the trunk root.
D
On the designated VLAN server for the network.
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Question 16
Multiple Choice

 What IEEE standard specifies how VLAN information appears in frames and how switches interpret that information?

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A
802.1c
B
802.1Q
C
802.1V
D
802.1d
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Question 17
Multiple Choice

 In an IPv6 address, what do the first four blocks or 64 bits of the address represent?

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A
The usable host portion of the network.
B
The site prefix or global routing prefix.
C
The broadcast domain for the configured host ID.
D
The MAC address of the router assigning the host ID.
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Question 18
Multiple Choice

 On certain Cisco products, what command can be used to create and send helper messages that support several types of UDP traffic, including DHCP, TFTP, DNS, and TACACS+?

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A
ip create helper server
B
ip new helper
C
set ip helper address
D
ip helper-address
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Question 19
Multiple Choice

 When an 802.1Q tag is added to an Ethernet frame, where is it placed?

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A
It is inserted between the preamble and the destination address.
B
It is inserted between the destination and the source addresses.
C
It is inserted between the source address and the Ethernet type field.
D
It is appended to the end of the frame.
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Question 20
Multiple Choice

 How large is the 802.1Q tag that is added to an Ethernet frame when using VLANs?

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A
4 bytes
B
8 bytes
C
12 bytes
D
20 bytes
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