5.10.5 Practice Test

You need to perform a reverse lookup of the 10.0.0.1 IP address. Which command can you use to accomplish this? (Select two. Each response is a complete solution.) A. nbtstat -a 10.0.0.3 B. ipconfig /dnslookup 10.0.0.3 C. dig -x 10.0.0.3 D. nslookup 10.0.0.3 E. arp 10.0.0.3

Mary calls to tell you that she can't connect to an intranet server called WebSrvl. From her computer, you ping the server's IP address. The ping test is successful. Which tool would you use on her workstation next to troubleshoot the problem? A. tracert B. nslookup C. nbtstat D. netstat E. arp

You are troubleshooting a network connectivity issue on a Unix system. You are able to connect to remote systems by using their IP address, but unable to connect using the hostname. You check the TCP/IP configuration, and note that a DNS server IP address is configured. You decide to run some manual resolution queries to ensure that the communication between the Unix system and the DNS server are working correctly. Which utilities can you use to do this? (Choose two .) A. traceroute B. tracert C. dig D. nslookup

Examine the following output : Server : helicuplar.xct.takro.net Address : 209.53.4.130 Name : westsim.com Address : 64.78.193.84 Which of the following utilities produced this output? A. nslookup B. tracert C. ipconfig D. netstat

Consider the following output from a dig command run on a Linux system. ; <> DiG 8 .2 <> westsimlll.com ;;res options :init recurs defnam dnsrch ;;got answer : ;;->>HEADER<< -opcode :QUERY , status : NOERROR , id :4 ;;flags : qr rd ra ; QUERY :l , ANSWER :l , AUTHORITY :2, ADDITIONAL :0 ;;QUERY SECTION : ;; westsimlll.com , type= A , class= IN ;;ANSWER SECTION : westsimlll .com . 7h33m IN A 76 .141 .43 .129 ;;AUTHORITY SECTION : westsimlll .com . 7h33m INNS dnsl .deriatctlll .com. westsimlll.com. 7h33m INNS dns2.de riatct222.com . ;;Total query time : 78 msec ;;FROM: localhost .localdomain to SERVER :default -- 202 .64 .49 .150 ;;WHEN: Tue Feb 16 23 :21 :24 2005 ;;MSG SIZE sent : 30 rcvd :l03 which of the following utilities produced this output?

Consider the following output from a dig command run on a Linux system. ; <> DiG 8 .2 <> westsimlll.com ;;res options :init recurs defnam dnsrch ;;got answer : ;;->>HEADER<< -opcode :QUERY , status : NOERROR , id :4 ;;flags : qr rd ra ; QUERY :l , ANSWER :l , AUTHORITY :2, ADDITIONAL :0 ;;QUERY SECTION : ;; westsimlll.com , type= A , class= IN ;;ANSWER SECTION : westsimlll .com . 7h33m IN A 76 .141 .43 .129 ;;AUTHORITY SECTION : westsimlll .com . 7h33m INNS dnsl .deriatctlll .com. westsimlll.com. 7h33m INNS dns2.de riatct222.com . ;;Total query time : 78 msec ;;FROM: localhost .localdomain to SERVER :default -- 202 .64 .49 .150 ;;WHEN: Tue Feb 16 23 :21 :24 2005 ;;MSG SIZE sent : 30 rcvd :l03 What is the IP address of the DNS server that performed this name resolution? A. 202.64.49.150 B. 76.141.43.129 C. 192.168.1.100 D. 16.23.21.24

A user reports that he can't browse to a specific Web site on the Internet. From his computer, you find that a ping test to the Web server succeeds. A trace route test shows that 17 hops to the destination Web server. What is the most likely cause of the problem?