network exam chapter 7
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.
Regarding VNC(Virtual Network Computing or Virtual Network Connection), what statement is accurate?
VNC is open source, allowing companies to develop their own software based on VNC.
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.
Digital certificates are issued, maintained, and validated by an organization called a certificated authority (CA).
true
Office 365 is an example of an SaaS implementation with a subscription model.
true
PPP can support several types of Network layer protocols that might use the connection.
true
Which of the following virtualization products is an example of a bare-metal hypervisor?
Cirtix XenServer
Amazon and Rackspace both utilize what virtualization software below to create their cloud environments?
Citrix Xen
Which of the following virtualization products is an example of a bare-metal hypervisor?
Citrix XenServer
What special enterprise VPN supported by Cisco devices creates VPN tunnels between branch locations as needed rather requiring constant, static tunnels?
Dynamic Multipoint VPN
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
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
Which statement regarding the use of a bridged mode vNIC is accurate?
The vNIC will its own IP address on the physical LAN.
When is it appropriate to utilize the NAT network connection type?
Whenever the VM does not need to be access at a know address by other network nodes.
The use of certificate authorities to associate public keys with certain users is known by what term?
public-key infrastructure
In order to generate a public and private key for use with SSH, what command line utility should you use?
ssh-keygen
The Virtual Network Computing (VNC) application uses the cross-platform remote frame buffer (RFB) protocol.
true
In a software defined network, what is responsible for controlling the flow of data?
SDN controller
What statement regarding the SSH (Secure Shell) collection of protocols is accurate?
SSH supports port forwarding.
A Type 2 hypervisor installs on a computer before any OS, and is therefore called a bare-metal hypervisor.
false
