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Network and Security - Foundations - D315 Exam Questions and Complete Solutions Graded A+
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Network and Security - Foundations - D315 Exam Questions and Complete Solutions Graded A+
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Network and Security -Foundations - D315
Exam Questions and
Complete Solutions
Graded A+
Which network topology offers the greatest level of redundancy but has the highest implementation
cost? - Answer: Wired Mesh
At which OSI layers can a switch operate? - Answer: Layer 2
When a WAN is confined to a certain geographic area, such as a city, it is known as a - Answer: MAN
You have been asked to install a network that will give the network users the greatest amount of fault
tolerance. Which of the following network topologies would you choose? - Answer: MESH
Which of the following is a computer network in a defined area that links buildings and consists of
multiple LANs within that limited geographical area? - Answer: CAN
A single cable break can cause complete network disruption and it uses a single backbone to connect all
network devices. - Answer: BUS Topology
At which OSI layers can a Router operate? - Answer: Layer 3
Which of the following are sublayer of the data link layer? - Answer: MAC
,TCP is an example of what kind of transport protocol? - Answer: Connection oriented
Which of the following is considered a transport protocol? - Answer: TCP
Which of the following protocols offers guaranteed delivery? - Answer: TCP
Which of the following devices passes data based on the MAC address? - Answer: Switch
Which of the following devices forwards data packets to all connected ports? - Answer: Hub
Users are complaining that the network's performance is unsatisfactory. It takes a long time to pull files
from the server, and, under heavy loads, workstations can become disconnected from the server. The
network is heavily used, and a new videoconferencing application is about to be installed. The network
is a 1000BASE-T system created with Ethernet hubs. Which device are you most likely to install to
alleviate the performance problems? - Answer: Switch
A client on your network has had no problems accessing the wireless network in the past, but recently
she moved to a new office. Since the move, she cannot access the network. Which of the following is
most likely the cause of the problem? - Answer: The client system has moved too far from the WAP.
With which cloud service model can consumers use the provider's applications but not manage or
control any of the underlying cloud infrastructure? - Answer: Saas
What should you do if a weakness is discovered that affects network security, and no patch has yet been
released? - Answer: Take the at-risk system offline
As part of your network administrative responsibilities, you have completed your monthly backups. As
part of backup best practices, where should the media be stored? - Answer: In a secure offsite location
Which of the following is the best defense against social engineering? - Answer: Awareness and
education
, Many employees fell for a phishing email that appeared to be from a department head and demanded
that employees click on a link and complete an online survey by the end of the day. Which one of the
following principles of influence did these employees succumb to? - Answer: Authority
Which of the following is an attack that affects data availability? - Answer: DDOS
How would you mitigate ARP poisoning on a small network? - Answer: Use static mappings for IP
addresses
Before leaving for the day, one of the security administrators sends an email to the director of security,
informing him that an evil twin had been found and removed from the network. The director forwards
the email to you and asks what this means. Which of the following is the best reply? - Answer: A rouge
wireless access point was found connected to the network.
Which of the following threats is unknown to others and does not yet have a patch available? - Answer:
Zero-day attack
You have been asked to provide a virtualized environment. Which of the following makes it possible for
many instances of an operating system to be run on the same machine? - Answer: Hypervisor
As part of its digital transformation strategy, your company no longer wants to be responsible for
hosting the email system on premises or even in the cloud. Which of the following service models might
you recommend? - Answer: SaaS
Which of the following is an example of two-factor authentication? - Answer: ATM requiring credit card
and PIN
You are exchanging secure emails with another user. You use a key to encrypt your outbound email, but
then you are unable to decrypt the email you receive in return by using the same key you used to
encrypt the outbound email. Which best explains what's happening? - Answer: Asymmetric
cryptography is being used.
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