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Which of the following services is not provided by wireless access point in802.11 WLAN?
In an 802.11 WLAN (Wireless Local Area Network), a wireless access point (WAP or AP) provides several key services to facilitate communication and improve the functionality of the network. However, there's one service mentioned in the options you provided that is not typically a function of a wireleRead more
In an 802.11 WLAN (Wireless Local Area Network), a wireless access point (WAP or AP) provides several key services to facilitate communication and improve the functionality of the network. However, there’s one service mentioned in the options you provided that is not typically a function of a wireless access point. Since you haven’t provided specific options to choose from, I’ll list common services provided and then mention services that are not typically provided by a wireless access point:
### Services Provided by a Wireless Access Point:
1. Network Bridging: A wireless access point connects devices on a wireless network to a wired network, allowing them to communicate.
2. Traffic Management: It manages the data packets within the network, ensuring they are properly routed and prioritized.
3. Network Security: Implements security protocols such as WEP, WPA, or WPA2 to secure the wireless communication against unauthorized access.
4. SSID Broadcast: Broadcasts the network name (SSID) to make the network discoverable to wireless devices.
5. MAC Address Filtering: Allows or denies devices based on their MAC addresses.
6. DHCP Services: Some access points can offer DHCP services, providing IP addresses to devices on the network.
### Services Not Typically Provided by a Wireless Access Point:
– Intrusion Detection and Prevention: While some advanced APs might include this feature, traditional access points do not typically provide comprehensive intrusion detection and prevention. These are more complex network security functions
See lessWhat is a Firewall in Computer Network?
A firewall in a computer network is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Essentially, it acts as a barrier between a trusted internal network and untrusted external networks, such as the internet. A firewall can beRead more
A firewall in a computer network is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Essentially, it acts as a barrier between a trusted internal network and untrusted external networks, such as the internet. A firewall can be hardware, software, or a combination of both. Its primary purpose is to prevent unauthorized access to or from a private network. By inspecting network traffic, it can block or allow data packets based on specific security criteria, ensuring that only legitimate traffic is allowed through. Firewalls are crucial for protecting network security, preventing unauthorized access, and stopping malicious software and attackers from gaining access to sensitive data.
See lessThe protocol data unit (PDU) for the application layer in the Internet stack is
The Protocol Data Unit (PDU) for the Application Layer in the Internet stack is typically referred to as "Data" or "Message."
The Protocol Data Unit (PDU) for the Application Layer in the Internet stack is typically referred to as “Data” or “Message.”
See lessWhich Project 802 standard provides for a collisionfree protocol?
The Project 802 standard that provides for a collision-free protocol is IEEE 802.5, which refers to Token Ring. In a Token Ring network, a token circulates around the network nodes allowing a node to transmit data when it possesses the token. This method prevents collisions because only one node canRead more
The Project 802 standard that provides for a collision-free protocol is IEEE 802.5, which refers to Token Ring. In a Token Ring network, a token circulates around the network nodes allowing a node to transmit data when it possesses the token. This method prevents collisions because only one node can send data at a time.
See lessOSI standsfor
OSI stands for Open Systems Interconnection.
OSI stands for Open Systems Interconnection.
See lessWhich layer is used to link the network support layers and user supportlayers?
The Transport layer is used to link the network support layers and user support layers.
The Transport layer is used to link the network support layers and user support layers.
See lessIn TCP IP Model, when data is sent from device A to device B, the 5th layer to receive data at B is
In the TCP/IP model, when data is sent from device A to device B, the 5th layer to receive data at device B does not exist because this model comprises only four layers: Application, Transport, Internet, and Network Interface or Link. The data transmission would involve the interaction of these fourRead more
In the TCP/IP model, when data is sent from device A to device B, the 5th layer to receive data at device B does not exist because this model comprises only four layers: Application, Transport, Internet, and Network Interface or Link. The data transmission would involve the interaction of these four layers in both the sending and receiving ends but not a fifth layer.
See lessIn OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is
The 5th layer to receive data at device B in the OSI model is the Session Layer.
The 5th layer to receive data at device B in the OSI model is the Session Layer.
See lessDelimiting and synchronization of data exchange is providedby
Delimiting and synchronization of data exchange is often provided by specific protocols designed to ensure the accurate and orderly transmission of information between systems or devices. These protocols establish rules for how data should be formatted, transmitted, segmented, and reassembled, and tRead more
Delimiting and synchronization of data exchange is often provided by specific protocols designed to ensure the accurate and orderly transmission of information between systems or devices. These protocols establish rules for how data should be formatted, transmitted, segmented, and reassembled, and they also incorporate mechanisms for managing the timing and sequencing of data exchange. Some examples include:
1. Transmission Control Protocol (TCP) and Internet Protocol (IP) – TCP/IP provides a suite of communication protocols used to interconnect network devices on the internet. TCP manages the assembling of a message or file into smaller packets that are transmitted over the internet and received by a TCP layer that reassembles the packets into the original message. It ensures the reliable delivery of data and provides error checking mechanisms and data flow controls.
2. Serial Peripheral Interface (SPI) – SPI is a synchronous serial communication interface specification used for short-distance communication, particularly in embedded systems. It enables the master device to delimit and synchronize the data exchange with one or more slave devices using a master clock signal.
3. Inter-Integrated Circuit (I2C) – I2C is a multi-master, multi-slave, packet-switched, single-ended, serial computer bus widely used for attaching lower-speed peripheral ICs to processors and microcontrollers. It uses synchronization bits and delimiters to manage communication flows and data integrity between devices.
4. Real-Time Transport Protocol (RTP) – Used primarily for establishing and controlling media streams (e.g., audio
See lessThe functionalities of the presentation layerinclude
The functionalities of the Presentation Layer (Layer 6) in the OSI (Open Systems Interconnection) model primarily involve the translation, encryption, and compression of data. Here's an overview of its main functions: 1. Translation: Before data is transmitted, it needs to be translated into a commoRead more
The functionalities of the Presentation Layer (Layer 6) in the OSI (Open Systems Interconnection) model primarily involve the translation, encryption, and compression of data. Here’s an overview of its main functions:
1. Translation: Before data is transmitted, it needs to be translated into a common format. The Presentation Layer is responsible for the translation between the application format and the network format. This ensures that data sent from the application layer of one system can be read by the application layer of another, regardless of any differences in data representation.
2. Encryption/Decryption: The Presentation Layer handles the encryption and decryption needed for secure data transmission. By encrypting data before it is transmitted and decrypting it upon receipt, the Presentation Layer ensures that sensitive information remains confidential during transmission.
3. Compression: Data compression reduces the size of the data to be transmitted. This is particularly useful for reducing the bandwidth usage and improving the speed of data transmission. The Presentation Layer can compress data before transmission and decompress it upon receipt.
By managing these functionalities, the Presentation Layer plays a crucial role in ensuring that data is appropriately prepared for the application layer or for transmission across the network in a secure, efficient, and understandable format.
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