The Bits and Bytes of Computer Networking Week 5: Connecting to the Internet Already Passed

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The Bits and Bytes of Computer Networking Week 5: Connecting to the Internet Already Passed Another term for POTS, or the Plain Old Telephone System, is _______________. ✔✔Public Switched Tele... phone Network; POTS and PSTN refer to the same thing. A baud rate is a measurement of the number of ______________________. ✔✔bits that can be sent across a telephone line every second; A baud rate is equivalent to bits per second. .Question 1 T1 is short for __________. ✔✔T1 is short for Transmission System 1 How fast is a T1 line? ✔✔A T1 communicates at speeds of 1.544 Kb/sec. Select all statements that are true of cable internet connections. ✔✔they're shared bandwidth connections; A cable connection is a shared bandwidth connection. they're broadband connections; A cable connection is a broadband connection. WAN stands for ______________. ✔✔WAN stands for Wide Area Network. In a WAN, the area between a demarcation point and the ISP's core network is known as ___________. ✔✔A local loop; A local loop is the name for the area between a demarcation point and an ISP's network. A point-to-point VPN is also known as a ______________. ✔✔site-to-site VPN; A point-topoint VPN can also be referred to as a site-to-site VPN. How many address fields does an 802.11 header have? ✔✔4; There are four different address fields in an 802.11 header. Choose all of the frequencies that wireless networks typically operate on. ✔✔2.4Ghz ; Many wireless networks operate on the 2.4Ghz frequency band. 5Ghz; Many wireless networks operate on the 5Ghz frequency band. The rate at which a dial-up connection can send data across a telephone wire is known as a _____ rate. ✔✔baud; A baud rate is equivalent to bits per second. The more accurate name for a cable modem is a ______. POTS, DSLAM, CMTS, ONT ✔✔DSLAM; Not quite. Please refer back to Lesson 3 for a refresher. A section of the radio spectrum that's been agreed upon to be used for certain communications is known as a _______. ✔✔frequency band; Different locales might have different frequency bands defined. A traditional wireless network involving access points that all have wired connections is known as a(n) _______. ✔✔WLAN; A WLAN is the term for a traditional wireless network. WPA2 uses a key that's ____ bits long. ✔✔256-bit keys are pretty difficult to break. Devices that connect to the Internet are often categorized into silos. Which silo controls network traffic? ✔✔Switches and routers; Switches and routers are two of many devices that control network connectivity and traffic. Cable Internet access can be described with which feature? ✔✔Shared bandwidth ; Shared bandwidth means multiple users use the same connection. With cable Internet, many users (like in a city block) use the same line back to the ISP. An Internet connection problem for customers is found to be outside a carrier's regional office. As a result, which area needs troubleshooting? ✔✔A local loop; A local loop is the portion of a network between a customer's demarcation point and the carrier or ISP facility. An 802.11 frame contains a number of fields. Which field describes the version of 802.11 that is being used? ✔✔frame control; The frame control field contains a number of subfields to describe the frame and processing. This includes the version of 802.11 being used. Which configuration is considered to be a common way to increase security in a wireless network? ✔✔Media Access Control filtering; MAC filtering only allows certain devices to connect to a network Which form of Digital Subscriber Line (DSL) features differing upload and download speeds? ✔✔ADSL; Asymmetric Digital Subscriber Line (ADSL) connections feature different speeds for outbound and incoming data. Which connection technology uses what is known as a CMTS? ✔✔Cable Internet; The Cable Modem Termination System (CMTS) connects lots of different cable connections to an ISPs core network. What are two characteristics of a 5Ghz band wireless network? Check all that apply. ✔✔fast speeds; A wireless network that operates with a 5Ghz frequency offers greater speeds than that of a 2.4Ghz network. short range; A wireless network that operates with a 5Ghz frequency has a much shorter range than that of a 2.4Ghz network. An IT suspects that an unauthorized device is connected to a wireless network. This is a result of passkey sharing on a device brought from home. What is put in place to stop such activity? WiFi Protected Access 2 (WPA2), Channel overlap, collision domain, media access control (MAC) filtering ✔✔WPA2; Incorrect Not quite. Please review the videos in the "Wireless Networking" module for a refresher. Television broadcasts were originally delivered by using which technology? ✔✔Wireless; Television has historically moved in the opposite direction of networking as broadcasts were sent and received with antennas. Which value once represented a very popular modem baud rate that was used with dial-up connections? 1970, 1990, 110, 14400 ✔✔110; Not quite. Please review the videos in the "POTS and Dial-up" module for a refresher. [Show More]

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