Network+ Chapter 10
How many bits of a Class A IP address are used for host information?
24 bits
Question 19 5 / 5 pts A CIDR block of /26 is equivalent to what subnet mask below?
255.255.255.192
What is the formula for determining the number of possible hosts on a network?
2h - 2 = Z
A single switch can manage traffic belonging to several VLANs on a single interface, by configuring the interface as what option below?
A trunk port
While designing your network's VLAN topology, your team has decided to use a centrally managed DHCP server rather than creating a separate DHCP server for each VLAN. What software will you need?
DHCP relay agent
What is the software that allows you to define VMs and manage resource allocation and sharing among them?
Hypervisor
Telnet and SSH are called __________________ systems because they use the existing network and its protocols to interface with the switch.
In-band management
With which network connection type does the VM obtain IP addressing information from its host?
NAT mode
What type of VLAN automatically receives all untagged frames?
Native VLAN
Which of the following is not a good reason to subnet a network?
To reduce the number of routing table entries by combining several entries
Which port on a switch manages traffic for multiple VLANs?
Trunk port
Which protocol assigns a virtual IP to a group of routers?
VRRP
What virtual, logically defined device operates at the Data Link layer to pass frames between nodes?
Virtual switch
Which virtual network type allows VMs to communicate with each other on the same host, but disallows communication with other nodes on the network?
host-only mode
Which of the following is not a valid reason for using virtualization?
increase performance
The management option that can provide on-site infrastructure access when the network is down or complete remote access in cases of connectivity failures on the network, such as via a cellular signal, is known as?
out-of-band management
In an IPv6 address, the first 64 bits of the address are known as what?
routing prefix
With VTP, the VLAN database is stored on a switch known as which option below?
stack master
A network with the subnet mask 255.255.255.0 would have what CIDR block?
/24
Which supernet mask below would allow an organization to cover the following networks with one routing entry: 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24?
255.255.252.0
A network with 6 bits remaining for the host portion will have how many usable hosts?
62
What IEEE standard specifies how VLAN information appears in frames and how switches interpret that information?
802.1Q
The Shortest Path Bridging protocol is defined in what IEEE standard?
802.1aq
The first iteration of STP was defined in what IEEE standard below?
802.1d
How can VLAN hopping attacks be prevented on a network?
Disable auto trunking and move native VLANs to unused VLANs.
What protocol is used to provide a common language between virtualized service applications and a network's physical devices?
OpenFlow
In order to allow communication between VLANs for exchange of data, what must be used?
a router
STP selects the root bridge based on what option below?
bridge ID (BID)
Which network type allows a vNIC to access a network directly using the host machine's NIC?
bridged mode
Telnet and SSH are known as what type of management system?
in-band
