Network+ Chapter 10

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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


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