Fnals design ch7

What type of scenario would be best served by using a Platform as a Service (PaaS) cloud model?

A group of developers needs access to multiple operating systems and the runtime libraries that the OS provides.

Amazon and Rackspace both utilize what virtualization software below to create their cloud environment

Citrix Xen

Which of the following virtualization products is an example of a bare-metal hypervisor?

Citrix XenServer

The PPP headers and trailers used to create a PPP frame that encapsulates Network layer packets vary between 8 and 10 bytes in size due to what field?

FCS

A type 2 hypervisor installs on a computer before any OS, and is therefore called a bare-metal hypervisor True False

False

After L2TP establishing a VPN tunnel, GRE is used to transmit L2TP data frames through the tunnel. True False

False

FTPS ( FTP security or FTP Secure) and SFTP (Secure FTP) are two names for the same protocol. True False

False

Which statement regarding the IKEv2 tunneling protocol is accurate?

IKEv2 offers fast throughput and good stability when moving between wireless hotspots.

What security encryption protocol requires regular re-establishment of a connection and can be used with any type of TCP/IP transmission?

IPsec

When using public and private keys to connect to an SSH server from a Linux device, where must your public key be placed before you can connect?

In an authorization file on the host where the SSH server is.

The combination of a public key and a private key are known by which of the following terms?

Key pair

Which type of cloud service model involves hardware services that are provided virtually, including network infrastructure devices such as virtual servers?

LaaS

A vSwitch (virtual switch) or bridge is a logically defined device that operates at what layer of the OSI model?

Layer 2

By default, what network connection type is selected when creating a VM in VMware, VirtualBox, or KVM?

NAT Mode

At what layer of the OSI model does the IPsec encryption protocol operate?

Network layer

What open-source VPN protocol utilizes OpenSSL for encryption and has the ability to possibly cross firewalls where IPsec might be blocked?

OpenVPN

The use of certificate authorities to associate public keys with certain users is known by what term?

Public- key infrastructure

What cloud service model involves providing applications through an online user interface, providing for compatibility with a multitude of different operating systems and devices?

SaaS

Which statement regarding the use of a bridged mode vNIC is accurate?

The vNIC will obtain its own IP address on the physical LAN.

A community cloud is a service shared between multiple organizations, but not available publicly. True False

True

Digital certificates are issued, maintained, and validated by an organization called a certificate authority (CA). True False

True

Office 365 is an example of an SaaS implementation with a subscription model. True False

True

PPP can support several types of Network layer protocols that might use the connection. True False

True

VMware Player and Linux KVM are both examples of what type of hypervisor?

Type 2 hypervisor

When using a site-to-site VPN, what type of device sits at the edge of the LAN and establishes the connection between sites?

VPN Gateway

What is NOT a potential disadvantage of utilizing virtualization?

Virtualization software increases the complexity of backups, making creation of usable backups difficult.

When is it appropriate to utilize the NAT network connection type?

Whenever the VM does not need to be accessed at a known address by other network nodes.

The HTTPS (HTTP Secure) protocol utilizes the same TCP port as HTTP, port 80. True False

false

An enterprise-wide VPN can include elements of both the client-to-site and site-to-site models. True False

true

The Virtual Network Computing (VNC) application uses the cross-platform remote frame buffer (RFB) protocol. True False

true