please give me clear picture Section 1: DNS nslookup The Domain Name System (DNS) translates hostnames...
2 DNS: Domain Name System (a) Root DNS server (b)TLD DNS server d Local DNS server dns.poly.edu (c) Authoritative DNS server dns.umass.edu Requesting host cis.poly.edu gaia.cs.umass.edu A) Explain the four classes of DNS servers (a, b, c and d) using the above topology B) Explain the procedure of a host to resolve a DNS query using an Iterative query C) Explain the procedure of a host to resolve DNS query using a Recursive Query D) Compare both queries (Iterative and...
Can someone please help me with my Computer Network homework. 1. Describe the behaviors of and the differences between persistent and non-persistent HTTP 2. List three application layer data transfer protocols used in email applications. Which one(s) are 3. A DNS resource record is specified as a 4 tuple: cName, Value, Type,>.Describe how should we interpret a DNS resource record given the four resource record types: A, NS, CNAME, and Mx. For this question, you can ignore the TTL field....
IP, UDP and DNS Please check the screenshot below and give a short answer for the following questions. > Internet Protocol Version 4, Sre: 165.26.188.11, Dst: 168.27.170.110 > User Datagram Protocol, Src Port: 53, Dst Port: 55706 Domain Name System (response) Request In 2101 [Time: 0.037798000 seconds) Transaction ID: exa67e Flags: 08180 Standard query response, No error - Response: Message is a response .000 e... ..... Opcode: Standard query (e) ..... Authoritative: Server is not an authority for domain Truncated:...
1) Is this DNS message a query or response? 2) What is the port number used to send the DNS query? 3) How many Answer RRs? (2 point) Please describe what they are? IP, UDP and DNS 1... ....... Please check the screenshot below and give a short answer for the following questions. > Internet Protocol Version 4, Src: 168.26.188.11, Dst: 168.27.170.110 > User Datagram Protocol, Src Port: 53, Dst Port: 55706 Domain Name System (response) [Request Tn: 2101 [Time:...
Each (1-13) question is 5 points: 1. How many bits are in a MAC address?2. 3. How many bits are in an IPv4 IP address? 4. When using DSL modem to connect to the Internet, the data transmission shares the cabling with what other technology? 5. Which type of networking cable is more reliable, STP or UTP? Which is used more on LANs? 6. Which TCP/IP protocol that manages packet delivery guarantees that delivery? Which protocol does not guarantee delivery, but is faster? 7. Which...
ANSWER NETWORKS QUESTIONS (MCQS AND CALCULATIONS) QUESTIONS ( 11 - 20) QUESTION 11 1. Consider the following excerpt from a simple server side UDP program: Server.py from socket import * sName=’127.0.0.1’ sSocket=socket(AF_INET,SOCK_DGRAM) sSocket.bind((sName, 12005)) while True: msg, cAddr =sSocket.recvfrom(2048) newMsg = msg.decode().lower() sSocket.sendto(*********************) What code could be used to replace the **********’s in line 8? newMsg.encode(), cAddr newMsg.encode() msg.encode(), cAddr msg.encode() none of the above 1 points QUESTION 12 For a client to obtain an IP address from the local...
use TOLEDO OHIO USA IP ADDRESS and typed please! 1 of 1 Environment variables are some of the most useful tools available to command shell script writers. By default, all Windows systems include a host of environment variables that can provide important information about the system and the current user a Run ipconfig /all in the command line. What is your computer's running Ipv6 address? 2) To list all your system's environment variables, you can type "set". What the COMPUTERNAME...
How to solve Exercises 1? Project Goal The project will give you some hands-on experience with Nmap. Nmap is a network tool that allows you to scan live hosts and services (open ports), thus, creating a "map" of the network. You will be using Zenmap, a graphical user interface (GUID of Nmap, to investigate several basic types of networl scanning techniques. You can work in teams of two students or alone. Setup: Installing&Using Zenmap Visit nmap.org/download.html to download and install...
Risk management in Information Security today Everyday information security professionals are bombarded with marketing messages around risk and threat management, fostering an environment in which objectives seem clear: manage risk, manage threat, stop attacks, identify attackers. These objectives aren't wrong, but they are fundamentally misleading.In this session we'll examine the state of the information security industry in order to understand how the current climate fails to address the true needs of the business. We'll use those lessons as a foundation...