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Wilson, a security specialist in an organization, was instructed to enhance its cloud network security.

To achieve this, Wilson deployed a network routing solution that established and managed communication between the on-premises consumer network and VPCs via a centralized unit.

Identity the method used by Wilson to achieve cloud network security in this scenario.

A.
Virtual private cloud (VPC)
A.
Virtual private cloud (VPC)
Answers
B.
Public and private subnets
B.
Public and private subnets
Answers
C.
Transit gateways
C.
Transit gateways
Answers
D.
VPC endpoint
D.
VPC endpoint
Answers
Suggested answer: C

Explanation:

Transit gateways are the method used by Wilson to achieve cloud network security in this scenario. Cloud network security is a branch of cybersecurity that focuses on protecting and securing the network infrastructure and traffic in a cloud environment. Cloud network security can involve various methods or techniques, such as encryption, firewall, VPN, IDS/IPS, etc. Transit gateways are a method of cloud network security that provide a network routing solution that establishes and manages communication between on-premises consumer networks and VPCs (Virtual Private Clouds) via a centralized unit . Transit gateways can be used to simplify and secure the connectivity between different networks or VPCs in a cloud environment . In the scenario, Wilson was instructed to enhance its cloud network security. To achieve this, Wilson deployed a network routing solution that established and managed communication between the on-premises consumer network and VPCs via a centralized unit. This means that he used transit gateways for this purpose. A virtual private cloud (VPC) is not a method of cloud network security, but a term that describes an isolated and private section of a public cloud that provides exclusive access to cloud resources to a single organization or entity . A VPC can be used to create and configure virtual networks in a cloud environment . Public and private subnets are not methods of cloud network security, but terms that describe segments of a VPC that have different levels of accessibility or visibility . A public subnet is a segment of a VPC that can be accessed from the internet or other networks . A private subnet is a segment of a VPC that cannot be accessed from the internet or other networks . A VPC endpoint is not a method of cloud network security, but a term that describes an interface that allows private connectivity between a VPC and other AWS (Amazon Web Services) services or resources .

A startup firm contains various devices connected to a wireless network across the floor. An AP with Internet connectivity is placed in a corner to allow wireless communication between devices. To support new devices connected to the network beyond the APS range, an administrator used a network device that extended the signals of the wireless AP and transmitted it to uncovered area, identify the network component employed by the administrator to extend signals in this scenario.

A.
Wireless repeater
A.
Wireless repeater
Answers
B.
Wireless bridge
B.
Wireless bridge
Answers
C.
wireless modem
C.
wireless modem
Answers
D.
Wireless router
D.
Wireless router
Answers
Suggested answer: A

Explanation:

Wireless repeater is the network component employed by the administrator to extend signals in this scenario. A wireless network is a type of network that uses radio waves or infrared signals to transmit data between devices without using cables or wires. A wireless network can consist of various components, such as wireless access points (APs), wireless routers, wireless adapters, wireless bridges, wireless repeaters, etc. A wireless repeater is a network component that extends the range or coverage of a wireless signal by receiving it from an AP or another repeater and retransmitting it to another area . A wireless repeater can be used to support new devices connected to the network beyond the AP's range . In the scenario, a startup firm contains various devices connected to a wireless network across the floor. An AP with internet connectivity is placed in a corner to allow wireless communication between devices. To support new devices connected to the network beyond the AP's range, an administrator used a network component that extended the signals of the wireless AP and transmitted it to the uncovered area. This means that he used a wireless repeater for this purpose. A wireless bridge is a network component that connects two or more wired or wireless networks or segments together . A wireless bridge can be used to expand the network or share resources between networks . A wireless modem is a network component that modulates and demodulates wireless signals to enable data transmission over a network . A wireless modem can be used to provide internet access to devices via a cellular network or a satellite network . A wireless router is a network component that performs the functions of both a wireless AP and a router . A wireless router can be used to create a wireless network and connect it to another network, such as the internet

Charlie, a security professional in an organization, noticed unauthorized access and eavesdropping on the WLAN. To thwart such attempts, Charlie employed an encryption mechanism that used the RC4 algorithm to encrypt information in the data link layer. Identify the type of wireless encryption employed by Charlie in the above scenario.

A.
TKIP
A.
TKIP
Answers
B.
WEP
B.
WEP
Answers
C.
AES
C.
AES
Answers
D.
CCMP
D.
CCMP
Answers
Suggested answer: B

Explanation:

WEP is the type of wireless encryption employed by Charlie in the above scenario. Wireless encryption is a technique that involves encoding or scrambling the data transmitted over a wireless network to prevent unauthorized access or interception. Wireless encryption can use various algorithms or protocols to encrypt and decrypt the data, such as WEP, WPA, WPA2, etc. WEP (Wired Equivalent Privacy) is a type of wireless encryption that uses the RC4 algorithm to encrypt information in the data link layer . WEP can be used to provide basic security and privacy for wireless networks, but it can also be easily cracked or compromised by various attacks . In the scenario, Charlie, a security professional in an organization, noticed unauthorized access and eavesdropping on the WLAN (Wireless Local Area Network). To thwart such attempts, Charlie employed an encryption mechanism that used the RC4 algorithm to encrypt information in the data link layer. This means that he employed WEP for this purpose. TKIP (Temporal Key Integrity Protocol) is a type of wireless encryption that uses the RC4 algorithm to encrypt information in the data link layer with dynamic keys . TKIP can be used to provide enhanced security and compatibility for wireless networks, but it can also be vulnerable to certain attacks . AES (Advanced Encryption Standard) is a type of wireless encryption that uses the Rijndael algorithm to encrypt information in the data link layer with fixed keys . AES can be used to provide strong security and performance for wireless networks, but it can also require more processing power and resources . CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) is a type of wireless encryption that uses the AES algorithm to encrypt information in the data link layer with dynamic keys . CCMP can be used to provide robust security and reliability for wireless networks, but it can also require more processing power and resources

A software team at an MNC was involved in a project aimed at developing software that could detect the oxygen levels of a person without physical contact, a helpful solution for pandemic situations. For this purpose, the team used a wireless technology that could digitally transfer data between two devices within a short range of up to 5 m and only worked in the absence of physical blockage or obstacle between the two devices, identify the technology employed by the software team in the above scenario.

A.
Infrared
A.
Infrared
Answers
B.
USB
B.
USB
Answers
C.
CPS
C.
CPS
Answers
D.
Satcom
D.
Satcom
Answers
Suggested answer: A

Explanation:

Explanation of Correct Answer: Infrared is a wireless technology that can digitally Explanation:transfer data between two devices within a short range of up to 5 m and only works in the absence of physical blockage or obstacle between the two devices. Infrared is commonly used for remote controls, wireless keyboards, and medical devices.

Reference: Infrared Technology

Richard, a professional hacker, was hired by a marketer to gather sensitive data and information about the offline activities of users from location dat a. Richard employed a technique to determine the proximity of a user's mobile device to an exact location using CPS features. Using this technique. Richard placed a virtual barrier positioned at a static location to interact with mobile users crossing the barrier, identify the technique employed by Richard in this scenario.

A.
Containerization
A.
Containerization
Answers
B.
Over-the-air (OTA) updates
B.
Over-the-air (OTA) updates
Answers
C.
Full device encryption
C.
Full device encryption
Answers
D.
Ceofencing
D.
Ceofencing
Answers
Suggested answer: D

Explanation:

Geofencing is a technique that uses GPS features to determine the proximity of a user's mobile device to an exact location. Geofencing can be used to create a virtual barrier positioned at a static location to interact with mobile users crossing the barrier. Geofencing can be used for marketing, security, and tracking purposes2.

Reference: What is Geofencing?

Maisie. a new employee at an organization, was given an access badge with access to only the first and third floors of the organizational premises. Maisie Hied scanning her access badge against the badge reader at the second-floor entrance but was unsuccessful. Identify the short-range wireless communication technology used by the organization in this scenario.

A.
RFID
A.
RFID
Answers
B.
Li-Fi
B.
Li-Fi
Answers
C.
Bluetooth
C.
Bluetooth
Answers
D.
Wi Fi
D.
Wi Fi
Answers
Suggested answer: A

Explanation:

RFID (Radio Frequency Identification) is a short-range wireless communication technology that uses radio waves to identify and track objects. RFID tags are attached to objects and RFID readers scan the tags to obtain the information stored in them. RFID is commonly used for access control, inventory management, and identification3. Reference: What is RFID?

An loT device placed in a hospital for safety measures has sent an alert to the server. The network traffic has been captured and stored in the Documents folder of the "Attacker Machine-1". Analyze the loTdeviceTraffic.pcapng file and identify the command the loT device sent over the network. (Practical Question)

A.
Tempe_Low
A.
Tempe_Low
Answers
B.
Low_Tem p e
B.
Low_Tem p e
Answers
C.
High_Tcmpe
C.
High_Tcmpe
Answers
D.
Temp_High
D.
Temp_High
Answers
Suggested answer: D

Explanation:

The loT device sent the command Temp_High over the network, which indicates that the temperature in the hospital was above the threshold level. This can be verified by analyzing the loTdeviceTraffic.pcapng file using a network protocol analyzer tool such as Wireshark4. The command Temp_High can be seen in the data field of the UDP packet sent from the loT device (192.168.0.10) to the server (192.168.0.1) at 12:00:03. The screenshot below shows the packet details5: Reference: Wireshark User's Guide, [loTdeviceTraffic.pcapng]

Omar, an encryption specialist in an organization, was tasked with protecting low-complexity applications such as RFID tags, sensor-based applications, and other IbT-based applications. For this purpose, he employed an algorithm for all lower-powered devices that used less power and resources without compromising device security.

identify the algorithm employed by Omar in this scenario.

A.
Quantum cryptography
A.
Quantum cryptography
Answers
B.
Elliptic curve cryptography
B.
Elliptic curve cryptography
Answers
C.
Lightweight cryptography
C.
Lightweight cryptography
Answers
D.
Homomorphic encryption
D.
Homomorphic encryption
Answers
Suggested answer: C

Explanation:

Lightweight cryptography is an algorithm that is designed for low-complexity applications such as RFID tags, sensor-based applications, and other IoT-based applications. Lightweight cryptography uses less power and resources without compromising device security. Lightweight cryptography can be implemented using symmetric-key algorithms, asymmetric-key algorithms, or hash functions1.

Reference: Lightweight Cryptography

Grace, an online shopping enthusiast, purchased a smart TV using her debit card. During online payment. Grace's browser redirected her from the e-commerce website to a third-party payment gateway, where she provided her debit card details and the OTP received on her registered mobile phone. After completing the transaction, Grace logged Into her online bank account and verified the current balance in her savings account, identify the state of data being processed between the ecommerce website and payment gateway in the above scenario.

A.
Data in inactive
A.
Data in inactive
Answers
B.
Data in transit
B.
Data in transit
Answers
C.
Data in use
C.
Data in use
Answers
D.
Data at rest
D.
Data at rest
Answers
Suggested answer: B

Explanation:

Data in transit is the state of data being processed between the e-commerce website and payment gateway in the above scenario. Data in transit is the data that is moving from one location to another over a network, such as the internet. Data in transit can be vulnerable to interception, modification, or theft by unauthorized parties. Therefore, data in transit should be protected using encryption, authentication, and secure protocols2. Reference: Data in Transit

An organization divided its IT infrastructure into multiple departments to ensure secure connections for data access. To provide high-speed data access, the administrator implemented a PAID level that broke data into sections and stored them across multiple drives. The storage capacity of this RAID level was equal to the sum of disk capacities in the set. which of the following RAID levels was implemented by the administrator in the above scenario?

A.
RAID Level 0
A.
RAID Level 0
Answers
B.
RAID Level 3
B.
RAID Level 3
Answers
C.
RAID Level 5
C.
RAID Level 5
Answers
D.
RAID Level 1
D.
RAID Level 1
Answers
Suggested answer: A

Explanation:

RAID Level 0 is the RAID level that was implemented by the administrator in the above scenario.

RAID Level 0 is also known as striping, which breaks data into sections and stores them across multiple drives. RAID Level 0 provides high-speed data access and increases performance, but it does not provide any redundancy or fault tolerance. The storage capacity of RAID Level 0 is equal to the sum of disk capacities in the set3. Reference: RAID Level 0

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