Choose the correct option: You need to make 100 subnets, each with 1024 hosts. Which prefix mask would you use at the beginning before starting subnetting? A) /12 B) /14 C) /8 D) /15 E) /16 F) /18
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- Q10: Complete the frames (x & y) given below with appropriate port, IP and MAC addresses. The sender Host E has two applications running; one for email with port number 49254 and the other for accessing the web server with port number 52167. The frame x is intended for the BRACU Web server and frame y is coming from the Email Server. (MAC addresses are alphabets and IP addresses are numbers) [5] Port 80 Frame y K/93 BRACU G/51 Router BRACU Web ISP Frame x Server Router I/91 Port 25 Н 52 F/25 Hub-PT Hubo A/20 Switc-PT Switcho Swich-Pr Syitch1 Email Server J/92 B/21 E/24 C/22 D/23 Sender Frame X D. Mac S. MAC D. IP S. IP D. Port S. Port Data Trailer Frame Y D. Mac S. MAC D. IP S. IP D. Port S. Port Data Trailer ** *******END***: *** *** *****Given the following commands, explain what the purpose of the command is and give a typical use case for each: Show interface Show arp tracert Example: the “ping” command, uses the Internet Control Message Protocol and verifies layer 3 connectivity, and would typically be used by a Network Administrator who wants to test connectivity between devices when a new device has been added to a network or as a troubleshooting method when experiencing connectivity issues.The given IPV6 subnet address is 2001:0DA7:FF00:FAF8: :/64. • Use the above IPV6 address for Subnet 0. • Increment the subnet field by 1 and find the IPV6 address for the remaining subnets. • Write simplified IPV6 address. Subnet IPV6 network address (Write simplified IPV6 address) Number 1 3. Complete the 2 following IPV6 addressing table 3 using IPV6 subnetting. Follow the instructions given below and write the IPV6 address in the table.
- The HTTP protocol uses Request and Response processes in a client-server communication as shown in the diagram below. Request Line HTTP Headers HTTP Request Browser Server HTTP Response Status Line HTTP Headers Content Provide two of the http-header fields for each process. (Provide your answers in the order they appear in the HTTP header fields structure) Answer: 1. HTTP Request Header Fields: 1) 2) 2. HTTP Response Header Fields: 1) 0000 2)IL PCAP Scanner alert udp any 61348 -> any any (content: "109 69 63 61 6e 68 61 7a 69 70 03 63 6f 6d 001; msg: "DNS Test"; Sid:1000001) Question Number 2 Scan The scan results for your snort rule will be displayed below. There is a problem with your rule. Check the alerts below to determine what went wrong and then try again. Something went wrong with your snort rule. Check the Syntax Syntax error please help! Create a rule to detect DNS requests to 'icanhazip', then test the rule with the scanner and submit the token. O XIf: Host 1 = 64 Host 2 = 21 What is the mask for Host 1 & Host 2 ?
- Write down the subnet Id's for FE80:1E8:D22F::/48 if you only want to create 4 subnets.An ISP is granted a block of addresses starting with 130.100.0.0/16. The ISP needs to distribute these addresses to 4 large companies. Each company requires 1024 IP addresses. Write the address ranges for these companies into the following table with /n notation. Company First address Last address 1 2 3 41)which of the following is easiest routing to configure for a WAN a)static routes b)ospf c)eigrp 2)which path attribute refers to the external metric of a route? a)external paths b)lowest multi-exit discriminator c)lowest orgin type
- Ann is a CSULA student trying to access (https://www.calstatela.edu) from the campus library. Her request must use Domain Name System (DNS) resolution to translate the name (https://www.calstatela.edu) to an IP address. Assume that CSULA DNS name resolution uses iterated queries and her request first goes to the CSULA local DNS server shown in the figure. In the following picture: 1. Fill in the blanks to show all the servers in the DNS hierarchy this request must be sent to, starting from and including the root DNS server. 2. Draw arrows with sequence numbers showing the steps in the DNS resolution. The first and the last step in DNS resolution are shown in the figure.Q1) How many RTTs are there from when a client first contacts an email server (by initiating a TCP session) to when the client can begin sending the email message itself - that is following all initial TCP or SMTP handshaking required? Recall the figure below from our class notes: "client" SMTP server initiate TCP connection RTT TCP connection initiated SMTP handshaking SMTP transfers "server" SMTP server time 220 HELO 250 HelloQ4:- Answer the following: 1) Three-way handshake to establish connection ( Host A sends a SYN) to the host B. Then Host B returns a --and Host A sends an 2) In non-persistent HTTP, the file transmission Response time = 3) A class B network number uses numbers, bits for the network number and bits for host. 4) When host makes DNS query, in first step the query is sent to its 5) The values assigned to the first byte of class A network numbers fall within the range -