chapter 7 study guide

A host in the context of virtualization is the physical computer on which virtualization software operates and manages guests

True

Encryption is the last means of defense against data theft.

True

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

Citrix Xen

What special enterprise VPN supported by Cisco devices creates VPN tunnels between branch locations as needed rather than requiring constant, static tunnels?

Dynamic Multipoint VPN.

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

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

False

Asymmetric encryption is a method of encryption that requires the same key to encode the data as is used to decode the ciphertext.

False

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

False

In key encryption, the scrambled data block is known as cleartext.

False

In public key encryption, data is encrypted using a single key that only the sender and the receiver know.

False

____ mode is appropriate for test networks or if you simply need to install a different operating system on your workstation to use a program that is incompatible with your host's operating system.

Host-only

What software allows you to define VMs and manage resource allocation and sharing among them on a host computer?

Hypervisor

Which tunneling protocol is a component of the IPsec protocol suite?

IKEv2

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

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

IaaS

Which type of hypervisor is installed on bare metal?

Type 1

Which terminal emulation protocol is similar to RDP but is open source?

VNC

What is NOT a potential disadvantage of utilizing virtualization?

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

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.

Which secured tunneling protocol might be able to cross firewalls where IPsec is blocked?

Open VPN

____ key encryption uses a key pair to encrypt data and decrypt data.

Public

What statement regarding the SSH (Secure Shell) collection of protocols is accurate?

SSH supports port forwarding.

A VPN ____ authenticates VPN clients and establishes tunnels for VPN connections.

concentrator

The combination of a public key and a private key are known by what term below?

key pair

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

layer 2

In a ____ VPN, tunnels connect multiple sites on a WAN.

site-to-site

Which port must be open for RDP traffic to cross a firewall?

3389

A VPN is designed to connect 15 film animators and programmers from around the state of California. At the core of the VPN is a router connected to a high-performance server used for storing the animation files. The server and router are housed in an ISP's data center. The ISP provides two different T3 connections to the Internet backbone. What type of connection must each of the animators and programmers have to access the VPN?

Any type of Internet connection

PPTP (Point-to-Point Tunneling Protocol) is an OSI model layer 8 (Spy Layer) protocol developed by the NSA Prism data mining program which can monitor a user's keystrokes and can also be used to search for life on Mars when deep tunneling is enhanced with L2TP (Layer 2 Tunneling Protocol).

False

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

False

Regarding VNC (Virtual Network Computing or Virtual Network Connection), what statement is accurate?

NC is open source, allowing companies to develop their own software based on VNC.

Which of the following statements regarding the Point-to-Point (PPP) protocol is NOT accurate?

PPP can support strong encryption, such as AH or ESP.

Which remote access protocol is used over an Ethernet network?

PPPoE

Which of the following is NOT an encryption algorithm used by SSH?

SHA-2

Which Transport layer protocol does PPTP use

TCP

Which file transfer protocol has no authentication or security for transferring files, uses UDP, and requires very little memory to use?

Trivial FTP (TFTP)

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

public-key infrastructure

If you are entering your account number and password in a Web form to check your bank account balance online, which of the following encryption methods are you most likely using?

SSL

____ is a method of encrypting TCP/IP transmissions above the network layer.

SSL

When surfing online, you get some strange data on an apparently secure website, and you realize you need to check the legitimacy of the site. What kind of organization issues digital certificates for websites

CA (certificate authority)

Which current protocol is used to create secure transmissions for HTTP browsing sessions?

TLS

Which of the following functions makes VPN protocols unique?

The ability to create tunnels

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

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

Which of the following applies to virtual machines, no matter what type of virtualization software they are created with?

They exist as files on the hard drive of their host.

Most cloud service providers use virtualization software to supply multiple platforms to multiple users.

True

One of the disadvantages of virtualization is the increased licensing cost of commercial software used in the virtual machines

True

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

True

Which of the following plays a crucial role in the public key infrastructure?

Certificate authority

What service in Windows Server 2016 authenticates remote users and computers to the Windows domain and its corporate network resources?

Direct Asscess

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 virtual, logically defined device operates at the Data Link layer to pass frames between nodes?

Virtual Switch

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

False

The bridged network configuration types prevent VMs from exchanging traffic with nodes other than the workstation they are installed on.

False

Which encryption protocol does GRE use to increase the security of its transmissions

IPSec

Which of the following encryption methods provides the best security for data traveling over VPN connections?

IPSec

Which of the following encryption techniques is incorporated into IP version 6?

IPSec

____ is an encryption protocol that defines the rules for encryption, authentication, and key management for TCP/IP transmissions.

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.

Which encryption benchmark ensures data is not modified after it's transmitted and before it's received?

Integrity

Why is the telnet utility a poor choice for remote access to a device?

It provides poor authentication and no encryption.

You have decided to set up a VPN between your home and your friend's home so that you can run a private digital telephone line over your DSL connections. Each of you has purchased a small Cisco router for terminating the VPN endpoints. Which of the following protocols could you use to create a tunnel between these two routers?

L2TP

With which network connection type does the VM obtain IP addressing

NAT mode

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

Network layer

Which cloud computing services model gives software developers access to multiple operating systems for testing?

PaaS

What kind of device can be used to configure and manage physical and virtual networking devices across the network?

SDN

Which remote file access protocol is an extension of SSH?

SFTP

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

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

On network diagrams, the Internet is frequently depicted as a ____.

cloud

A(n) ____ is a password-protected and encrypted file that holds an individual's identification information, including a public key.

digital certificate

Each VM is known as a ____. guest host client node

guest

Telnet and SSH are known as what type of management system?

in-band

What term is used to describe a space that is rented at a data center facility by a service provider?

point of presence (PoP)

What characteristics of the VM can be customized?

All choices can be customized