Which traffic type is used for one-to-one communication?
Answer(s): C
In computer networking, there are three types of traffic: unicast, multicast, and broadcast. Each type is used for different purposes and has different characteristics.Unicast traffic is used for one-to-one communication, where a single sender transmits data to a single recipient. In unicast traffic, the sender and recipient have a unique address that is used to direct the data from the sender to the intended recipient.Multicast traffic is used for one-to-many communication, where a single sender transmits data to multiple recipients who are part of a defined group. In multicast traffic, the sender sends a single copy of the data, and the network infrastructure copies and delivers the data to all members of the multicast group.Broadcast traffic is used for one-to-all communication, where a single sender transmits data to all devices on the network. In broadcast traffic, the sender sends a single copy of the data, and the network infrastructure delivers the data to all devices on the network.Anycast is a different type of communication that is used to identify a single destination from a group of potential destinations. In anycast, multiple devices have the same address, but only one device is responsible for responding to incoming traffic addressed to that address. Anycast is typically used in routing protocols and other network infrastructure applications.
https://www.omnisecu.com/tcpip/ipv6/unicast-multicast-anycast-types-of-network-communication-in-ipv6.php
Which accurately describes the TCP/IP Model? (Select two.)
Answer(s): C,D
The TCP/IP model is a conceptual model used to describe the protocols used for communication over the Internet and other IP-based networks. It consists of four layers: the network access layer, the internet layer, the transport layer, and the application layer.The TCP/IP model specifies how to assemble, address, transmit, route, and disassemble a data packet as it is transmitted over a network. This includes defining the format of IP packets, how they are addressed, and how they are routed from one network to another.The TCP/IP model is used on IP-based networks only, and is not specific to any particular underlying physical network technology. It is also not concerned with compressing, fragmenting, encrypting, or analyzing data, which are functions handled by higher-level protocols in the OSI model.Therefore, options C and D accurately describe the TCP/IP model, while options A, B, and E are incorrect.
Which organization provides certifications that ensure interoperability between WLAN vendors?
The Wi-Fi Alliance is a non-profit organization that promotes and certifies Wi-Fi technology. The organization provides various certifications that ensure interoperability between different WLAN vendors. These certifications include the Wi-Fi CERTIFIED™ program, which tests and certifies products for adherence to industry standards and interoperability with other Wi-Fi devices, and the Wi-Fi CERTIFIED™ ac program, which certifies products for compatibility with the 802.11ac standard. The Wi-Fi Alliance also provides certification programs for other Wi-Fi technologies, such as Wi-Fi Direct and Wi-Fi Protected Setup (WPS).
https://www.wi-fi.org/certification
Which Wi-Fi technology assists with data privacy on open networks?
Answer(s): B
Opportunistic Wireless Encryption (OWE) is a Wi-Fi security technology that provides data privacy on open networks, such as public Wi-Fi hotspots. OWE uses a form of encryption known as Elliptic Curve Cryptography (ECC) to encrypt communications between a client device and an access point. This provides protection against eavesdropping and other forms of data interception.Simultaneous Authentication of Equals (SAE) is a password-based authentication protocol that is used in WPA3, the latest version of the Wi-Fi Protected Access (WPA) security protocol. SAE is designed to provide stronger protection against attacks that target weak passwords.Commercial National Security Algorithm (CNSA) is a suite of cryptographic algorithms that are used by U.S. government agencies to protect classified information. CNSA is not specifically related to Wi-Fi technology.Wi-Fi Protected Access 2 (WPA2) is a security protocol that is used to secure Wi-Fi networks. WPA2 uses Advanced Encryption Standard (AES) encryption to protect data transmitted over the network. However, WPA2 is vulnerable to some types of attacks, such as the KRACK attack that was discovered in 2017.
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