Wednesday, 5 May 2021

Network Security Quiz

 Question 1: Which of the following statements about EAP authenticator is CORRECT?
Select one or more:
EAP authenticator may also play the role of an authentication server
EAP authenticator can communicate with supplicants using IEEE 802.1X
EAP authenticator is the device that grants access to the network
A WiFi access point is an example of an EAP authenticator

Solution:
EAP authenticator may also play the role of an authentication server
EAP authenticator can communicate with supplicants using IEEE 802.1X
EAP authenticator is the device that grants access to the network
A WiFi access point is an example of an EAP authenticator


 Question 2: Identify the methods that are commonly used to control network access in a corporate network.
Select one or more:
Assign users to specific VLAN based on their access level
Allow access to devices based on their MAC address
Control access between network segments using firewall
Use 802.11X authentication

Solution:
Assign users to specific VLAN based on their access level
Control access between network segments using firewall
Use 802.11X authentication


Question 3: Which of the following statements about EAP over LAN (EAPOL) is CORRECT?
Select one or more:
EAPOL support the transmission of EAP authentication packets over IEEE 802 LAN standards such Ethernet or WiFi
EAPOL is a protocol defined as part of IEEE 802.1X
EAPOL defines an authentication method to be used with IEEE 802.1X authentication
EAPOL is used to carry data packets sent after authentication has been approved

Solution:
EAPOL support the transmission of EAP authentication packets over IEEE 802 LAN standards such Ethernet or WiFi
EAPOL is a protocol defined as part of IEEE 802.1X


Question 4:When a mobile phone is made into a WiFi hotspot, it would play the role of:
Select one or more:
Authenticator
Authentication server
Supplicant
Wireless medium

Solution:
Authenticator
Authentication server


Question 5: Choose the essential features of cloud computing from the list below.
Select one or more:
Computing resources can be increased or decreased based on the specified service requirement
Cloud users are charged based on the amount of computing resources used
Computing resources are shared among the cloud users.
Cloud users can provision for computing resources themselves without the need to interact with any employee from the cloud service provider

Solution:
Computing resources can be increased or decreased based on the specified service requirement
Cloud users are charged based on the amount of computing resources used
Cloud users can provision for computing resources themselves without the need to interact with any employee from the cloud service provider


Question 6:What are the security risks related to the use of cloud computing?
Select one or more:
Cloud computing account may be compromised by attackers
Cloud computing resources may be used for malicious purposes
Data may be leaked to other cloud computing users
Data may be read by the employees of the cloud service provider

Solution:
Cloud computing account may be compromised by attackers
Cloud computing resources may be used for malicious purposes
Data may be leaked to other cloud computing users
Data may be read by the employees of the cloud service provider

Question 7: The IEEE 802.11i standard provides confidentiality through which of the following protocols?
Select one or more:
EAP
CCMP
TKIP
IEEE 802.11X

Solution:
CCMP
TKIP

Question 8: The IEEE 802.11i standard provides access control through which of the following mechanisms?
Select one or more:
PSK
TKIP
CCMP
IEEE 802.11X

Solution:
PSK
IEEE 802.11X

Question 9:  Among the reasons why mobile devices are more prone to security risks are:
Select one or more:
Mobile devices are equipped with Global Positioning System (GPS) receiver
Mobile devices run mobile operating systems where security features are not implemented
Mobile devices are easily lost or stolen
Mobile devices connect to various different networks

Solution:
Mobile devices are equipped with Global Positioning System (GPS) receiver
Mobile devices are easily lost or stolen
Mobile devices connect to various different networks

Question 10: Which of the following should be done to secure a newly bought WiFi access point to be installed in your house?
Select one or more:
Change the default administration password
Change the default SSID name
Choose WPA3 for authentication even though it is not supported by the wireless devices that will use the access point
Use IEEE 802.1X instead of PSK as the authentication method

Solution:
Change the default administration password
Change the default SSID name


Question 11: Choose the factors that contribute to the higher security risk of wireless networks as compared to wired networks.
Select one or more:
The fact that wireless devices are mobile and often connect to various different networks
Wireless network protocols have no security mechanisms implemented
Some mobile devices have limited capability to deal with security threats
The broadcast nature of wireless medium

Solution:
The fact that wireless devices are mobile and often connect to various different networks
Some mobile devices have limited capability to deal with security threats
The broadcast nature of wireless medium

Question 12:  Among the common threat(s) faced by devices when communicating over a wireless network are:
Select one or more:
Attacker can break into any TCP or UDP port even though it is not opened
Its MAC address could be sniffed by attacker
The access point that it connects to could be a rogue access point
Its HTTP cookies can be easily sniffed even if HTTPS is used

Solution:
Its MAC address could be sniffed by attacker
The access point that it connects to could be a rogue access point

Question 13: Choose the CORRECT statement(s) about WiFi association.
Select one or more:
It is not possible for association to be done without having to enter a password
It is possible to permit association based on device MAC address
Association refers to the process of transferring data from a wireless device to a WiFi access point
WPA3 is an authentication protocol used during WiFi association

Solution:
It is possible to permit association based on device MAC address
WPA3 is an authentication protocol used during WiFi association


Question 14:Which of the following statements are TRUE about open WiFi network?
Select one or more:
When WPA3 is used, data transmitted in open WiFi network is encrypted
When open WiFi network is used, data is transmitted in clear text
Open WiFi network is only available in access points that support WEP
In open WiFi network, association can be done without requiring a password

Solution:
When WPA3 is used, data transmitted in open WiFi network is encrypted
When open WiFi network is used, data is transmitted in clear text
In open WiFi network, association can be done without requiring a password

Question 15: Which of the following statements are TRUE about WPA2-Personal and WPA2-Enterprise?
Select one or more:
In WPA2-Personal, a single password is shared between multiple users
In WPA2-Personal, a radius server is used for authentication
In WPA2-Enterprise, each user has is own password
In WPA2-Enterprise, the access point can verify user credentials

Solution:
In WPA2-Personal, a single password is shared between multiple users
In WPA2-Enterprise, each user has is own password

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