CS402 Saylor Direct Credit Final Exam Saylor Academy Questions And Answers

CS402: Saylor Direct Credit Final Exam | Saylor Academy Questions And Answers. ___ messages are sent from one computer to the set of computers in its logical group. Which of the following is a network that spans multiple LANs but is smaller than a MAN? a. CAN b. PAN c. TAN d. WAN If the physical layer delivers 1000 bits to the receiver, but the receiver only receives 900 bits, how could you describe the behavior of the physical layer? a. Reliable b. Error-free c. Unreliable d. Compressed _____ network topologies are the most expensive to implement, since they use the most network cable. How many direct links are required to support ten nodes in a fully-connected network topology? Which of the following network topologies is relatively cheap to implement, since it uses a single wire to connect every computer in the network? What is the RFC? Which kind of protocol would you use to stream live programs when you do not want to miss any future or present events, but you do not care as much about missing past packets? The protocols for email and web file access are described in which layer of the Internet protocol? a. Application b. Network c. Transport d. Session Which of the following OSI layers is responsible for routing IP packets? a. Network b. Presentation c. Session d. Transport Review this TCP packet. Which of the following sections would be different if you were instead looking at a UDP packet? Which of the following layers is a combination of the Application, Presentation, and Session layer in the TCP/IP reference model? Which of the following layers is unique to the TCP/IP reference model? What type of WAN technology would you recommend for an organization that wants to lay optical fiber cable between two cities? Which of the following types of cable would most likely be found in a public network? a. Coaxial b. Optical fiber c. Twisted pair d. Plenum cable How should you begin troubleshooting a network issue where every user is getting a host unreachable error, which usually comes from an application-layer protocol? a. Update the clients' IP address settings. b. Restart the DNS server and verify all the devices. c. Restart the DHCP server and verify all the services. d. Update the users' browser settings and verify them using a ping command. A(n) _____ query requests the domain name that corresponds to a given IP address. You are managing a website for a tech firm, and you notice that dnsserver1 and dnsserver2 cannot communicate properly across the company's WAN. What is the first step you should take when trying to solve this problem? a. Restart the DNS server. b. Create a DNS server backup. c. Update the DNS server's IP address. d. Verify the IP address for both of the servers. A MIME message must Which of the following protocols is used to send an email message from an email client to an email server? In your network, PC2 requests a file download from PC4, which receives the request and processes it. Which type of network are you using? You have a website that is deployed on a web server. Your firewall allows external traffic via port 80, but your users receive a "404: page not found" error when trying to access the site. Why might they be getting this error? Which of the following does SNMP define when sending packets from a manager to an agent and vice versa? a. User name b. Format of packets c. Number of packets d. Encoding of packets A manager is a host that runs which of the following SNMP processes? If you are working for a company that wants to transition FTP to SFTP, which of the following tools will you have to use to bridge between them? Which of these features is supported by socket programming? The packet below [photo] does not contain any fields with a sequence number or acknowledgment. What is the most likely reason behind this? You are watching a live stream on your internet TV. You can hear the audio stream, but cannot see the video stream. This is most likely a ___ isue. SCTP allows which of the following services in each association? Your manager is asking for your help in selecting a networking protocol. She says that network packet delivery is extremely important, and that retransmission of the IP packet should occur as needed. Which of the following protocols should you recommend to her?