Describe a metric that might be used in a routing table for Internet data communications.

Directions: For each true/false and multiple-choice questions, choose one of the options and explain your answer. For the remaining questions, provide an explanation. Your explanation should be a minimum of one paragraph (four to five sentences). Include citations to all external references. Each question is worth 20 points.The questions are listed below, but please use the Assignment #3 document to submit your answers.1. The link layer encapsulates the datagram received from the network layer into a frame: (a) True (b) False Explain your answer.2. MAC protocols employ CRC to detect errors: (a) True (b) False Explain your answer.3. The physical topology of a LOGICAL token ring protocol LAN is a: (a) Star (b) Bus (c) Ring (d) All of the above (e) None of the above4. Read the file “IP Addresses and Routing Tables.” Then, answer the following question.An organization wants to form subnets for four departments with the following number of hosts: A dept: 82; B dept: 40; C dept: 18; D dept: 60.Assuming the ISP serving the company starts with the old class C address 210.118.63, what does the company’s CIDR entries in the routing table look like?The ISP needs to provide CIDR addresses for four subnets: one will handle up to 126 hosts (for department A) and the other three will handle up to 62 hosts each for departments B, C, and D.5. Describe a metric that might be used in a routing table for Internet data communications.