Networking Ch8

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A /24 CIDR block is equivalent to a 255.255.255.0 subnet mask. (T/F)

True

All that is needed to provide communication between two VLANs is a DHCP relay agent. (T/F)

True

By default, the native VLAN is the same as the default VLAN. (T/F)

True

IPv6 addressing does not utilize classful addressing, therefore every IPv6 address is classless. (T/F)

True

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. (T/F)

True

Network segmentation at Layer 2 of the OSI model is accomplished using VLANs. (T/F)

True

Which of the following terms is commonly used to describe a VLAN configuration in which one router connects to a switch that supports multiple VLANs?

router-on-a-stick

What command will set the native VLAN on a Juniper switch port?

set native-vlan-id

You are working on a Cisco switch and need to learn what VLANs exist on the switch. Which command will list the current VLANs recognized by the switch?

show vlan

By default, when using classful addressing, how many bits exist in the host portion of a Class A address?

24

What subnet mask can be used to segment the 172.16.0.0 network to allow for a minimum of 6 subnets while maximizing the number of hosts per subnet?

255.255.224.0

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

255.255.255.192

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

4 bytes

What is the maximum number of host IP addresses that can exist in a Class B network?

65,534

How many subnets can a /48 site prefix support?

65,536

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

False

An unmanaged switch can still support the creation of VLANs, provided there is an interface for configuration. (T/F)

False

Network segmentation decreases both performance and security on a network. (T/F)

False

Only Class B and Class C networks can be subnetted. (T/F)

False

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

It is inserted between the source address and the Ethernet type field.

What does the VLAN Trunk Protocol (VTP) do?

It shares VLAN database information amongst switches that participate.

A subnet of 255.255.248.0 can be represented by what CIDR notation?

/21

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

1022

With VTP, where is the VLAN database stored?

On the switch that is known as the stack master.

What is NOT one of the ways in which networks are commonly segmented?

by device manufacturer


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