Computer Science > EXAM > WGU - MSCSIA - C700 - Secure Network Design – 2019| 674 QUESTIONS WITH COMPLETE ANSWERS (All)

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WGU - MSCSIA - C700 - Secure Network Design – 2019| 674 QUESTIONS WITH COMPLETE ANSWERS

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What happened September 15th 2016? Correct Answer: Brian Krebs, (KrepsOnSecurity) was DDoS'd with Mirai On what day was Brian Krebs attacked? Correct Answer: September 15th 2016 What was Mirai? Correct Answer: The Botnet that was used against Brian Krebs on September 15th 2016 It sent 620 Gbps of traffic Was over 2x the amount Akamai had ever encountered It used the IoT such as DVRs, security cameras and home routers What is the IoT? Correct Answer: Internet of Things Connected devices aka smart devices Smart TVs, Smart Thermostats, Smart Fridges, Smart Speakers etc What is Dyn? Correct Answer: A DNS hosting service that was hit by Mirai. It was used by Netflix, Tumblr, Amazon, Twitter, Spotify and Tumblr When did the internet first become commercial? Correct Answer: 1995 Prior to that the "Internet's Acceptable Use Policy" prohibited commercial use because it was supported by the National Science Foundation (NSF). In 1995 NSF pulled out and the internet became commercial What is an ISP? Correct Answer: Internet Service Provider What are hosts? Correct Answer: All computers connected to a network that participate directly in network communication are classified as hosts. Hosts are also called end devices. What is e-commerce? Correct Answer: Conducting business on the internet (buying/selling on the internet) What accounts for 33% of the internet's traffic? Correct Answer: Netflix What network came before the internet? Correct Answer: ARPNET When was the internet created? Correct Answer: Late 1970s Who sets standards for the internet? Correct Answer: Internet Engineering Task Force (IETF) But standards are optional Who controls internet addresses? Correct Answer: Internet Assigned Name Authority (IANA) Word/Phrase Correct Answer: Definition 2.4 GHz Unlicensed Service Band Correct Answer: Unlicensed frequency band around 2.4 GHz. Used for Wi-Fi, Bluetooth, and other services. 4-Pair Unshielded Twisted Pair (UTP) Correct Answer: The type of wiring typically used in Ethernet networks. 4-pair UTP contains eight copper wires organized as four pairs. Each wire is covered with dielectric insulation, and an outer jacket encloses and protects the four pairs. 5 GHz Unlicensed Service Band Correct Answer: Unlicensed radio band around 5 GHz. Used for Wi-Fi and other services. 64-bit modified extended unique identifier (EUI-64) Correct Answer: In most IPv6 addresses, the interface ID that specifies a particular device on a subnet is 64 bits long. Typically the 64-bit address is derived from a 48-bit EUI-48 address (formerly called a MAC address). If so, it is a modified extended unique identifier (EUI-64). 802 LAN/MAN Standards Committee Correct Answer: The IEEE committee responsible for Ethernet standards. 802.11ac Correct Answer: In W-Fi, the fastest physical transmission standard for sale today. 802.11ad Correct Answer: 802.11 physical layer standard in the 60 Ghz unlicensed band. Has a theoretical top speed of 7 Gbps. 802.11ax Correct Answer: P

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