Ch 8 Network

11 September 2022
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33 test answers

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question
Network segmentation decreases both performance and security on a network.
answer
false
question
Only Class B and Class C networks can be subnetted.
answer
false
question
By default, the native VLAN is the same as the default VLAN.
answer
true
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A native VLAN mismatch occurs when two access ports that are connected to each other are both tagging traffic with different VLAN IDs.
answer
false
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All that is needed to provide communication between two VLANs is a DHCP relay agent.
answer
false
question
Network segmentation at Layer 2 of the OSI model is accomplished using VLANs.
answer
true
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A /24 CIDR block (prefix) is equivalent to a 255.255.255.0 subnet mask.
answer
true
question
IPv6 addressing does not utilize classful addressing, therefore every IPv6 address is classless.
answer
true
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An unmanaged switch can still support the creation of VLANs, provided there is an interface for configuration.
answer
false
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In order to identify the transmissions that belong to each VLAN, a switch will add a tag to Ethernet frames that identifies the VLAN through which they arrive at the switch.
answer
true
question
A network with a CIDR notation (prefix) of /26 would have what subnet mask?
answer
255.255.255.192
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A network with 10 bits remaining for the host portion will have how many usable host addresses?
answer
1022
question
An interface that manages traffic from multiple VLANs is known by what term?
answer
aggregation port
question
Which of the following suggestions can help prevent VLAN hopping attacks on a network?
answer
Disable auto trunking and move native VLANs to unused VLANs.
question
With VTP, where is the VLAN database stored?
answer
On the switch that is known as the stack master, configured as a VTP server.
question
What IEEE standard specifies how VLAN information appears in frames and how switches interpret that information?
answer
802.1Q
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In an IPv6 address, what do the first four blocks or 64 bits of the address represent?
answer
The site prefix or global routing prefix.
question
When an 802.1Q tag is added to an Ethernet frame, where is it placed?
answer
It is inserted between the source address and the Ethernet type field.
question
How large is the 802.1Q tag that is added to an Ethernet frame when using VLANs?
answer
4 bytes
question
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?
answer
show vlan
question
Given a host IP address of 172.16.1.154 and a subnet mask of 255.255.254.0, what is the network ID for this host?
answer
172.16.0.0
question
What is the maximum number of host IP addresses that can exist in a Class B network?
answer
65,534
question
Which of the following terms is commonly used to describe a VLAN configuration in which one router interface connects to a switch and serves as the gateway for multiple VLANs?
answer
router-on-a-stick
question
A subnet of 255.255.248.0 can be represented by what CIDR notation?
answer
/21
question
When using IPv6, what would a /64 network likely be assigned to?
answer
A smaller organization or business.
question
What does the VLAN Trunk Protocol (VTP) do?
answer
It shares VLAN database information amongst switches that participate.
question
Which of the following statements regarding IPv6 subnetting is NOT accurate?
answer
The largest IPv6 subnet capable of being created is a /64.
question
If the EUI-64 standard is used, what part of an IPv6 address is affected?
answer
The last four blocks of the address.
question
What is NOT one of the ways in which networks are commonly segmented?
answer
by device manufacturer
question
An IP address of 192.168.18.73/28 has what network ID?
answer
192.168.18.64
question
You have been tasked with the creation and design of a network that must support a minimum of 5000 hosts. Which network accomplishes this goal?
answer
10.3.0.0/19
question
How many subnets can a /48 site prefix support?
answer
65,536 subnets
question
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?
answer
255.255.224.0