MIS 589 Week 5 quiz| GRADED A

MIS 589 Week 5 quiz Question 1 1 / 1 pts (TCO C) _____ are companies that build a data and telecommunications infrastructure from which other companies can lease services for WANs and MANs.Correct! Common carriers Router manufacturers Standards organizations CSUs PUCs Question 2 1 / 1 pts (TCO C) A _____ are devices that permit a user to connect to a digital T-carrier service. modem codec Correct! CSU/DSU NIC ATM Question 3 1 / 1 pts (TCO C) _____ are dedicated digital circuits that are the most commonly used form of dedicated circuit services in North America today. Wideband analog services SMDS ATM Correct! T-carrier services ISDN Question 4 1 / 1 pts (TCO C) OC-3072 has a data rate of Correct! 159.25 Gbps. 39.813 Gbps. 1.544 Mbps. 100 Mbps. 1.244 Gbps. Question 5 1 / 1 pts (TCO C) Which of the following is a primary advantage of a VPN? Correct! Low cost Inflexibility Unpredictable traffic congestion Security Complexity to the user Question 6 1 / 1 pts (TCO C) The performance of WANs can be improved by Correct! upgrading the circuits between the computers. increasing the demand placed on the network. downgrading the circuits between the computers. downgrading the devices that provide access to the circuits. increasing network traffic. Question 7 1 / 1 pts (TCO C) The height of a sound wave is called its frequency. phase. Correct! amplitude. bandwidth. furlong. Question 8 1 / 1 pts (TCO C) Dynamic routing Correct! imposes an overhead cost by increasing network traffic. decreases performance in networks which have many possible routes. decreases performance in networks with bursty traffic. should be used in 80 to 90 percent of total networks’ capacity. is another term for static routing in WANs. Question 9 1 / 1 pts (TCO C) Which of the following is not a key issue to be considered when selecting a WAN service? Correct! Prestige value of using a particular common carrier Flexibility Capacity Control Reliability Question 10 1 / 1 pts (TCO C) Most IP services use _____ as the data link layer protocol. Ethernet TCP Correct! MPLS IRoute T1 Question 11 1 / 1 pts (TCO D) At the top of the Internet structure are tier 1 _____, such as AT&T and Sprint. network access points Correct! Internet service providers digital subscriber lines bridges LATAs Question 12 1 / 1 pts (TCO D) A _____ is the place at which the ISP provides services to its customers. remote access point network access point cable modem termination system endpointCorrect! point-of-presence metropolitan area exchange Question 13 1 / 1 pts (TCO D) A _____ is used by ISPs to authenticate its customers. password server file server WAP server web server Correct! remote access server Question 14 1 / 1 pts (TCO D) Technologies that provide higher speed communications than traditional modems (e.g., DSL) are known as _____ technologies. middleband narrowband rubberband metalband Correct! broadband Question 15 1 / 1 pts (TCO D) Most WiMAX providers in the U.S. are using an effective data range of Correct! 0.5–1.5 miles. 3–10 miles. 1–3 miles. 0.5–50 miles. 1–5 miles. Question 16 1 / 1 pts (TCO D) A digital service offered by cable companies is the Abilene network. WAP proxy. G.Lite ADSL. Correct! cable modem. next generation Internet. Question 17 1 / 1 pts (TCO D) A(n) _____ is used to connect a fiber optic cable from the cable TV company side to a coaxial cable on the customer side. RFC CA*net 3 WAP proxy fixed wireless connection Correct! optical electrical converter Question 18 1 / 1 pts (TCO D) The closest the Internet has to an owning organization is the Correct! Internet Society. Internet service provider. University Corporation for Advanced Internet Development. Abilene network. CA*Net3. Question 19 1 / 1 pts (TCO D) The _____ is a large open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and smooth operation of the Internet. Internet Society Correct! Internet Engineering Task Force Internet Engineering Steering Committee Internet Architecture Board Internet Research Task Force Question 20 1 / 1 pts (TCO D) Internet2® is an organization of about _____ universities, corporations, government agencies, and organizations. 100 250 Correct! 400 750