Ch 8 Test Network +
you have been tasked with the creation and design of a network that must support a minimum of 5000 host. what network accomplishes this goal?
10.3.0.0/19
a network with 10 bits remaining for the host portion will have how many usable host addresses?
1022
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?
172.16.0.0
an IP address of 192.168.18.73/28 has what network ID?
192.168.18.64
by default, when using classless addressing, how many bits exist in the host portion of a class a address?
24
a network with a CIDR notation (prefix) of /26 would have what subnet mask?
255.255.255.192
How large is the 8021q 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 sbunets can a /48 site prefix support?
65,536 subnets
What IEEE standard specifies how VLAN information appears in frames and how switches interpret that information.
802.1Q
What ways are networks commonly segmented?
By departmental boundaries by device types by geographic location
All that is needed to provide communication between two VLANs is a DHCP relay agent
False
An unmanaged switch can still support the creation of VLANs, provided there is an interface for configuration.
False
Network segmentation decreases both performance and security on a network.
False
Only Class B and Class C networks can be subnetted.
False
a native VLAN mismatch occurs when two access ports that are connected to each other are both tagging traffic with different VLAN IDs.
False
This is true about IPv6 subnetting
IPv6 addressing uses no classes, and is therfore classless. a single IPv5 subnet is capable of supplying 2^64 IPv6 addresses IPv6 does not use subnet mask
with VTP, where is the VLAN database stored?
On the switch that is known as the stack master, configured as the VTP server.
You are working on a cisco switch and need to learn what VLANs exist on the switch. What command will list the current VLANs recognized by the switch?
Show vlan
IPv6 addressing does not utilize classful addressing, therefore every IPv6 address is classless.
True
Network segmentation at layer 2 of OSI model is accomplished using VLANs.
True
a /24 CIDR bock (prefix) is equivalent to a 255.255.255.0 subnet mask.
True
by default, the native VLAN is the same as the default VLAN.
True
an interface that manages traffic from multiple VLANs is known by what term?
Trunk port
when using IPv6, what would a /64 network likely be assigned to?
a smaller organization or businees
Which of the following suggestions can help prevent VLAN hopping attacks on a network?
able auto trunking and move native VLANs to unused VLANs
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 among switches that participate.
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?
router on a stick
If the EUI-64 standard is used, what part of an IPv6 address is affected?
the last four blocks of the address.
In an IPv6 address, what do the first four blocks or 64 bits of the address represent?
the site prefix or global routing prefix.
In order to identify the transmission 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.
true
a subnet of 255.255.248.0 can be represented by what CIDR notation?
/21