Objective Find 3 physical networking technologies. Instructions locate three different physical networking technologies. You must find three unique technologies. Unique means completely different: WiFi 2.4GHZ and WiFi 5GHZ count as the same type since they are both 802.11 WIFI. Also, Cat5 and Cat6 802.3 Ethernet are the same things. 3 Observations 3.1 Record the following for each technology found • Speed in megabits per second • Type of transmission media • Age of the technology • Where you found the technology Example: The Wifi card in my laptop is an 802.11n interface with a speed up to 110Mbits/S, 802.11 Wifi was invented in 1994.

Wi-Fi is a popular technology used to provide local network and Internet access to devices that are within Wi-Fi range of one or more routers that are connected to the Internet. This Australian invention is based on IEEE 802.11 standards which come in several forms. Briefly discuss each standard and identify their key characteristics. The following link may give you some idea about how Wi-Fi works.                https://computer.howstuffworks.com/wireless-network.htm

Q4:- Answer only five. 1. The most common architectures for LANs are the 2. The information in an Ethernet network is exchanged in a packet format. The packet provides grouping of the information for transmission that includes 3. In a bus topology, all LAN data traffic is carried over a common-- 4. The maximum Ethernet frame length is-- 5. In the command prompt, enter the information to be displayed. 6. At Bob's mail server, the server side of server then places the message in Bob's mailbox. --command to enables the MAC addresses --receives the message. Bob's mail

The Ethernet standard 802.3cc  introduced in 2017, can reach  speed  _____ Gbit/s over Single Mode Fiber.

COURSE-COMPUTER NETWORKSYou have been appointed as a Network Admin in a company. You are given a network address of 191.10.0.0. How many IP addresses can be used using this classful IP address?   From the previous question, how many hosts does the above network support?

Answer all question Q. Cell phone networks or wireless networks are more prone to than a wired network? Q. Like every communication technology, wireless communication has its own| medium of data transfer and that is air or. channels? Q. Internet is defined as "the global system of that use the Internet Protocol to link devices worldwide"? Q. 802.11, a network technology belonging to the IEEE family, is a series of specifications for Q. The most important benefit of mobile communication is allowing users being able to move freely while still connected to a network are what wireless connectivity promises. Q. are the end user devices such as a laptop, desktop computer, cell phone, etc. that are connected to the wireless network. is used for sending emails and transferring files from one host to Q. another.

Computer Science Reference Network Diagram Use the reference network diagram below to answer the following questions. Private Network Public Internet Firewall Y Switch Router Firewall X Gaming Website www.game.com Web Server Email Server VPN Server Semi-Private Network (Consider the reference network diagram above) Assuming the private network is created using private IP addressing, which of these could be valid network addresses for the private network? Select all which apply. O 172.25.25.0/24 O 100.10.1.0/16 O 192.168.0.128/25 O 160.10.0.0/24 (Consider the reference network diagram above) Suppose Host-C just got connected to the private network. How can Host-C be assigned an IP address to become a part of the private network? Select all which apply. O The host cannot obtain an IP address after the network is set up and is operational. O The IP address of the host can be assigned as a static configuration. O A DNS server can assign a dynamic IP address for the host. O A DHCP server…

8. The two CSMA datalink layer protocols that we discussed Ethernet and WiFi – handle colli- - sions differently. Explain how each does so and why WiFi cannot use the same protocol as Ethernet.

Describe the differences between Wi-Fi 5 (802.11ac) and Wi-Fi 6 (802.11ax) in terms of speed, range, and other features.

2- The ......... connector is used for connecting devices to the coaxial cable. d. BNC-T b. RJ-45 c. Subscriber Channel a. Straight-Tip 5- In optical fiber cable, the most suitable light wavelength is ........ a. 1000 b. 1200 c. 1400 6- ......... can be considered as an application layer protocol a. DNS b. TELNET c. HTTP ....nm. d. 1600 d. all of them