Which standard contains the specifications for Wi-Fi networks?
Answer(s): C
The IEEE 802.11 standard contains the specifications for Wi-Fi networks. It is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communication in various frequencies, including but not limited to 2.4 GHz, 5 GHz, and 6 GHz1. This standard is maintained by the Institute of Electrical and Electronics Engineers (IEEE) and is commonly referred to as Wi-Fi. The standard has evolved over time to include several amendments that improve speed, range, and reliability of wireless networks.
· The Most Common Wi-Fi Standards and Types, Explained· 802.11 Standards Explained: 802.11ax, 802.11ac, 802.11b/g/n, 802.11a· Wi-Fi Standards Explained - GeeksforGeeks=========================
You want to store files that will be accessible by every user on your network.Which endpoint device do you need?
Answer(s): B
To store files that will be accessible by every user on a network, you would need a server. A server is a computer system that provides data to other computers. It can serve data to systems on a local network (LAN) or a wide network (WAN) over the internet. In this context, a file server would be set up to store and manage files, allowing users on the network to access them from their own devices1.
What is a Server?Understanding Servers and Their FunctionsA server is a computer designed to process requests and deliver data to other computers over a local network or the internet. In this case, to store files that will be accessible by every user on the network, a file server is the appropriate endpoint device. It provides a centralized location for storing and managing files, allowing users to access and share files easily.A . Access point: Provides wireless connectivity to a network.C . Hub: A basic networking device that connects multiple Ethernet devices together, making them act as a single network segment.D . Switch: A networking device that connects devices on a computer network by using packet switching to forward data to the destination device.Thus, the correct answer is B. Server.File Server Overview (Cisco)Server Roles in Networking (Cisco)
HOTSPOT (Drag and Drop is not supported)Computers in a small office are unable to access companypro.net. You run the ipconfig command on one of the computers. The results are shown in the exhibit.You need to determine if you can reach the router.Which command should you use? Complete the command by selecting the correct options from each drop-down lists.
Answer(s): A
To determine if you can reach the router, you should use the ping command followed by the IP address of the router. The ping command is a network utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer.The Default Gateway in the ipconfig results is typically the router's IP address in a home or small office network. In this case, the Default Gateway is 192.168.0.1, which is the address you would ping to check connectivity to the router.
How to Use the Ping CommandTesting Network Connectivity with the Ping Command=========================To determine if you can reach the router, you should use the ping command with the IP address of the router.Command: pingTarget: 192.168.0.1So, the completed command is:ping 192.168.0.1Step by Step Comprehensive and Detailed Explanation.ping: The ping command sends ICMP Echo Request messages to the target IP address and waits for an Echo Reply. It is commonly used to test the reachability of a network device.192.168.0.1: This is the IP address of the default gateway (the router) as shown in the ipconfig output. Pinging this address will help determine if the computer can communicate with the router.Using the ping Command: ping Command Guide
In the network shown in the following graphic, Switch1 is a Layer 2 switch.PC-A sends a frame to PC-C. Switch1 does not have a mapping entry for the MAC address of PC-C.Which action does Switch1 take?
In a network, when a Layer 2 switch (like Switch1) receives a frame destined for a MAC address that is not in its MAC address table, it performs a flooding operation. This means the switch will send the frame out of all ports except the port on which the frame was received. This flooding ensures that if the destination device is connected to one of the other ports, it will receive the frame and respond, allowing the switch to learn its MAC address.A . Switch1 queries Switch2 for the MAC address of PC-C: This does not happen in Layer 2 switches; they do not query other switches for MAC addresses.A . Switch1 drops the frame and sends an error message back to PC-A: This is not the default behavior for unknown unicast frames.D . Switch1 sends an ARP request to obtain the MAC address of PC-C: ARP is used by devices to map IP addresses to MAC addresses, not by switches to find unknown MAC addresses.Thus, the correct answer is B. Switch1 floods the frame out all active ports except port G0/1.
Cisco Layer 2 Switching OverviewSwitching Mechanisms (Cisco)
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