Unit 2 Quiz

Select the best example of cloud computing.

A company deploys virtualization architecture to provide on demand web servers, virtual routers, virtual firewalls, and test environments for a team of developers accessible through the internet.

The best example of a WAN would be

A company that has a network deployed in 9 countries on 3 continents

What is the best example of use of a public cloud?

A consultant recommends a server be virtualized and moved to AWS to save on costs.

What is the best example of a type 1 hypervisor

A datacenter uses ESX to provide an application as a SaaS product for subscribers

What is an example of a UTP cable?

CAT5 cable

A switch is a Layer 3 device and unlike a hub it creates a direct connection to devices on the network.

False

Because MAC addressing is a Layer 3 protocol, it is wise to choose a router that can use MAC addresses to transverse the internet.

False

A hub is the device of choice to decrease traffic on a network segment.

False

What is a logical address? What is a physical address?

IP Address/ Mac address

Choose the best option that represents IaaS, PaaS and SaaS.

IaaS is the networks servers, storage and underlying virtual infrastructure sold as a service, PaaS is the platform where the operating system level applications can be run, applications can be developed, databases can be hosted without having to manage the underlying infrastructure, SaaS is the end product or application where the client uses the application but is not responsible for the development, maintenance or hosting of an application.

Although a NIC card is found in a router, switch and computer, the basic operation is to simply transmit a signal therefore; which layer(s) does a NIC card assigned on the OSI model?

Layer 1

What layer of the OSI model does a switch operate?

Layer 2 (Physical Layer)

What layers of the OSI model would you troubleshoot if you want to see if an IP packet is being sent to a device?

Layer 2 and Layer 3

Ip addressing is used on which layer of the OSI model to route source and destination IP traffic?

Layer 3

What layer of the OSI model does a router operate?

Layer 3 (Network)

If a network admin needs to know if a computer is connected to the network and can respond what tool should the admin use?

Ping

A router is a Layer 3 device.

True

A bridge

connects two networks by forwarding traffic without analysis for which host receives the data

If a windows administrator is on a windows computer and needs to get the IP Address of the computer they are working on what tool should the admin use.

ipconfig

If a network admin needs to see if a TCP connection is active on a computer what tool should they use?

netstat

If a network admin sees an IP address only connecting after production hours, what tool should the admin use to start investigating who the IP address belongs to?

netstat

A network admin is configuring an application and needs to be sure that port 4432 is open what tool should the admin use?

nmap

If a network admin sees an IP address only connecting after production hours, what tool should the admin use to start investigating who the IP address belongs to?

nslookup

TCP is used on IP networks to:

to ensure the integrity and reliability of data communications on networks, and is a Layer 4 protocol