2.9, 2.10

Question 1

What is a screened subnet ?

Answer 1

An additional layer of security between
the Internet and you.

Question 2

What is a screened subnet also known as ?

Answer 2

DMZ

Question 3

How does WPA/2/3-Enterprise / WPA/2/3-802.1X authentication work ?

Answer 3

Authenticates users individually with an
authentication server (i.e., RADIUS, LDAP,)

Question 4

What is port mirroring ?

Answer 4

Allows an administrator to inspect traffic passing through a network switch.

Question 5

When implementing secure network designs, what might the term “Port security” refer to ?

Answer 5

Disable physical ports and unused logical ports
Implement MAC filtering
Implement Port-based Network Access Control

Question 6

A lightly protected subnet (a.k.a. DMZ) consisting of publicly available servers placed on the outside of the company’s firewall is called a what ?

Answer 6

Screened subnet

Question 7

What are Hash values used for ?

Answer 7

Verifying material.

Question 8

Which Windows group allows members to install most software but keeps them from changing key operating system files?

Answer 8

Power User

Question 9

What is Secure Sockets Layer (SSL) ?

Answer 9

A cryptographic suite of protocols that use public key infrastructure (PKI) to provide secure data transfer.

Question 10

What password manager does microsoft edge use ?

Answer 10

The Windows Credential Manager

Question 11

What is an allow list ?

Answer 11

Users, IP addresses, or domains, that are explicitly allowed to access a system or service.

Question 12

What is a deny list ?

Answer 12

Items that are explicitly prohibited from accessing a system or service.

Question 13

DNS port number

Answer 13

53

Question 14

DHCP port number ?

Answer 14

67

Question 15

Which of the following settings are optional? (Choose two.)
A. IP address
B. DNS server
C. Subnet mask
D. Default gateway

Answer 15

B, D

Question 16

Describe how a DHCP reservation works?

Answer 16

DHCP server will assign an IP from its DHCP scope to the client and reserve it based on its MAC address

Question 17

What is IP filtering ?

Answer 17

Essentially content filtering. Filter unwanted content from certain IP addresses or sites.

Question 18

What does UPnP do ?

Answer 18

Enables apps and devices to automatically open and close ports to connect with the LAN network

Question 19

Give an exampleof a screened subnet ?

Answer 19

A companies web server.
Placed in the screened subnet away from the companies LAN.

Question 20

What should you do with unused port ?

Answer 20

Disable them in the firewall settings.