WGU D315 CORE MAIN EXAMINATION
QUESTIONS AND ANSWERS SURE A+
✔✔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 6 and Layer 7
Layer 5 and Layer 1
Layer 2 and Layer 3
Layer 5 and Layer 6
Layer 1 only - ✔✔Layer 2 and Layer 3
✔✔Put the OSI layers in the correct order starting with Layer 7 and going down.
1 Physical
2 Data Link
3 Network
4 Transport
5 Session
6 Presentation
7 Application - ✔✔Application, Presentation, Session, Transport, Network, Data Link,
Physical
,✔✔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?
ifconfig
nmap
ssh
nslookup
Telnet - ✔✔nslookup
Feedback: This would provide information about the IP configuration such as IP
address, this information is known.
✔✔What layer of the OSI model does a switch operate?
Layer 2 (TCP Layer)
Layer 2 (Node Layer)
Layer 2 (Physical Layer)
Layer 2 (Data Transfer)
Layer 2 (Data-Link) - ✔✔Layer 2 (Data-Link)
✔✔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 2 and 3
Layer 1
Layer 6
Layer 1, 2 and 3 - ✔✔Layer 1
✔✔The best example of a WAN would be
________________________________________
a. A small office with a Switch and Router.
b. A house equipped with a home router.
c. A company that has a network deployed in 9 countries on 3 continents
d. A local police department that has a private high speed connection to all precincts
across the city
e. A University Campus that uses a VPN to connect the new research building. - ✔✔c.
A company that has a network deployed in 9 countries on 3 continents
✔✔A router is a Layer 3 device.
True
False - ✔✔True
✔✔What is the best example of a type 1 hypervisor?
, a. A network admin uses a system management software to install a hypervisor on the
users computers in the accounting department so they can run legacy software.
b. A datacenter copies a database from a server on a schedule
c. A network admin purchases a server to run a web sever, database server and virtual
firewall
d. A datacenter uses ESX to provide an application as a SaaS product for subscribers -
✔✔d. A datacenter uses ESX to provide an application as a SaaS product for
subscribers
✔✔Choose the best option that represents IaaS, PaaS and SaaS.
a. 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.
b. SaaS is the networks servers, storage and underlying virtual infrastructure sold as a
service, IaaS 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, PaaS is the end product or application where the client uses
the application but is not responsible for the development, maintena - ✔✔a. 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.
✔✔What is the best example of use of a public cloud?
a. A network admin decides to virtualize a computer and keep the virtual machine
running on a server onsite to increase reliability.
b. A cloud engineer decides to move an application from a datacenter on campus to the
new company owned datacenter located in a different state to increase bandwidth.
c. An enterprise architect recommends encryption for data at rest in the companies
datacenters located in geographically separate areas to meet compliance.
d. A consultant recommends a server be virtualized and moved to AWS to save on
costs. - ✔✔d. A consultant recommends a server be virtualized and moved to AWS to
save on costs.
QUESTIONS AND ANSWERS SURE A+
✔✔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 6 and Layer 7
Layer 5 and Layer 1
Layer 2 and Layer 3
Layer 5 and Layer 6
Layer 1 only - ✔✔Layer 2 and Layer 3
✔✔Put the OSI layers in the correct order starting with Layer 7 and going down.
1 Physical
2 Data Link
3 Network
4 Transport
5 Session
6 Presentation
7 Application - ✔✔Application, Presentation, Session, Transport, Network, Data Link,
Physical
,✔✔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?
ifconfig
nmap
ssh
nslookup
Telnet - ✔✔nslookup
Feedback: This would provide information about the IP configuration such as IP
address, this information is known.
✔✔What layer of the OSI model does a switch operate?
Layer 2 (TCP Layer)
Layer 2 (Node Layer)
Layer 2 (Physical Layer)
Layer 2 (Data Transfer)
Layer 2 (Data-Link) - ✔✔Layer 2 (Data-Link)
✔✔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 2 and 3
Layer 1
Layer 6
Layer 1, 2 and 3 - ✔✔Layer 1
✔✔The best example of a WAN would be
________________________________________
a. A small office with a Switch and Router.
b. A house equipped with a home router.
c. A company that has a network deployed in 9 countries on 3 continents
d. A local police department that has a private high speed connection to all precincts
across the city
e. A University Campus that uses a VPN to connect the new research building. - ✔✔c.
A company that has a network deployed in 9 countries on 3 continents
✔✔A router is a Layer 3 device.
True
False - ✔✔True
✔✔What is the best example of a type 1 hypervisor?
, a. A network admin uses a system management software to install a hypervisor on the
users computers in the accounting department so they can run legacy software.
b. A datacenter copies a database from a server on a schedule
c. A network admin purchases a server to run a web sever, database server and virtual
firewall
d. A datacenter uses ESX to provide an application as a SaaS product for subscribers -
✔✔d. A datacenter uses ESX to provide an application as a SaaS product for
subscribers
✔✔Choose the best option that represents IaaS, PaaS and SaaS.
a. 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.
b. SaaS is the networks servers, storage and underlying virtual infrastructure sold as a
service, IaaS 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, PaaS is the end product or application where the client uses
the application but is not responsible for the development, maintena - ✔✔a. 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.
✔✔What is the best example of use of a public cloud?
a. A network admin decides to virtualize a computer and keep the virtual machine
running on a server onsite to increase reliability.
b. A cloud engineer decides to move an application from a datacenter on campus to the
new company owned datacenter located in a different state to increase bandwidth.
c. An enterprise architect recommends encryption for data at rest in the companies
datacenters located in geographically separate areas to meet compliance.
d. A consultant recommends a server be virtualized and moved to AWS to save on
costs. - ✔✔d. A consultant recommends a server be virtualized and moved to AWS to
save on costs.
