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In the following network traffic, the response is not expected. Why?       Question options:   corrupted request should be acknowledged   corrupted request should be ignored   corrupted request should be reset   corrupted request should be synchronized   Question 8      The following figure shows the scanning result using the tool "nmap". Please check the result carefully, and tell which one is correct.      Question options:   protocol 13 is alive   protocol 166 is not alive   port 100 is active   port 17 is active

In the following network traffic, the response is not expected. Why?       Question options:   corrupted request should be acknowledged   corrupted request should be ignored   corrupted request should be reset   corrupted request should be synchronized   Question 8      The following figure shows the scanning result using the tool "nmap". Please check the result carefully, and tell which one is correct.      Question options:   protocol 13 is alive   protocol 166 is not alive   port 100 is active   port 17 is active

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question 3  
 

  In the following network traffic, the response is not expected. Why?

 

 

 
Question options:
 

corrupted request should be acknowledged
 

corrupted request should be ignored
 

corrupted request should be reset
 

corrupted request should be synchronized

 

Question 8  
 

 The following figure shows the scanning result using the tool "nmap". Please check the result carefully, and tell which one is correct. 

 

 
Question options:
 

protocol 13 is alive
 

protocol 166 is not alive
 

port 100 is active
 

port 17 is active
Starting nmap v. 2.54BETA1 by fyodor@insecure.org ( www.insecure.org/nmap/ ) Interesting protocols on myhost.net (192.168.5.5): (The 250 protocols scanned but not shown below are in state: closed) Protocol State Name icmp icmp 1 open 2 open 6 open tcp 17 open udp Here is a sample of the traffic that the protocol scan generated: 07:30:31.405513 scanner.net > target.com: ip-proto-124 0 (DF) 07:30:31.405581 scanner.net > target.com: ip-proto-100 0 (DF) 07:30:31.405647 scanner.net > target.com: ip-proto-166 0 (DF) 07:30:31.405899 target.com > scanner.net: icmp: target.com protocol 124 unreachable (DF) 07:30:31.788701 scanner.net > target.com: ip-proto-132 0 (DF) 07:30:32.119538 target.com > scanner.net: icmp: target.com protocol 166 unreachable (DF) 07:30:34.098715 scanner.net > target.com: ip-proto-236 0 (DF) 07:30:34.098782 scanner.net > target.com: ip-proto-129 0 (DF) 07:30:34.098849 scanner.net > target.com: ip-proto-229 0 (DF) 07:30:32.779583 target.com > scanner.net: icmp: target.com protocoi 236 unreachable (DF) 07:30:34.099557 target.com > scanner.net: icmp: target.com protocol 109 unreachable (DF)
Transcribed Image Text:Starting nmap v. 2.54BETA1 by fyodor@insecure.org ( www.insecure.org/nmap/ ) Interesting protocols on myhost.net (192.168.5.5): (The 250 protocols scanned but not shown below are in state: closed) Protocol State Name icmp icmp 1 open 2 open 6 open tcp 17 open udp Here is a sample of the traffic that the protocol scan generated: 07:30:31.405513 scanner.net > target.com: ip-proto-124 0 (DF) 07:30:31.405581 scanner.net > target.com: ip-proto-100 0 (DF) 07:30:31.405647 scanner.net > target.com: ip-proto-166 0 (DF) 07:30:31.405899 target.com > scanner.net: icmp: target.com protocol 124 unreachable (DF) 07:30:31.788701 scanner.net > target.com: ip-proto-132 0 (DF) 07:30:32.119538 target.com > scanner.net: icmp: target.com protocol 166 unreachable (DF) 07:30:34.098715 scanner.net > target.com: ip-proto-236 0 (DF) 07:30:34.098782 scanner.net > target.com: ip-proto-129 0 (DF) 07:30:34.098849 scanner.net > target.com: ip-proto-229 0 (DF) 07:30:32.779583 target.com > scanner.net: icmp: target.com protocoi 236 unreachable (DF) 07:30:34.099557 target.com > scanner.net: icmp: target.com protocol 109 unreachable (DF)
20:33:16.409759 verbo.47322 > win98.netbios-ssn: SFP 861966446:861966446 (0) win 3072 urg 0 <wscale 10,nop,mss 265,timestamp 1061109567[|tcp]> 20:33:16.410387 win98.netbios-ssn > verbo.47322: S 49904150:49904150 (0) ack 861966447 win 8215 <mss 1460> (DF)
Transcribed Image Text:20:33:16.409759 verbo.47322 > win98.netbios-ssn: SFP 861966446:861966446 (0) win 3072 urg 0 <wscale 10,nop,mss 265,timestamp 1061109567[|tcp]> 20:33:16.410387 win98.netbios-ssn > verbo.47322: S 49904150:49904150 (0) ack 861966447 win 8215 <mss 1460> (DF)
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