Certified Ethical Hacker Practice Exam

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Certified Ethical Hacker Practice Exam - Part Vll

Volume G

Email *

Write down your name. *

Write down your contact number. *

Q601: Under what conditions does a secondary name server request a zone transfer from a primary name server? *

1 point

When a primary SOA is higher that a secondary SOA

When a secondary SOA is higher that a primary SOA

When a primary name server has had its service restarted

When a secondary name server has had its service restarted

When the TTL falls to zero

Q602: What ports should be blocked on the firewall to prevent NetBIOS traffic from not coming to through the firewall if your network is comprised of Windows NT, 2000, and XP? (Choose all that apply. *

1 point

110

135

139

161

445

1024

Required

Q603: What is a NULL scan? *

1 point

A scan in which all flags are turned off

A scan in which certain flags are off

A scan in which all flags are on

A scan in which the packet size is set to zero

A scan with a illegal packet size

Q604: What is the proper response for a NULL scan if the port is open? *

1 point

SYN

ACK

FIN

PSH

RST

No response

Q605: Which of the following statements about a zone transfer correct?(Choose three. *

1 point

A zone transfer is accomplished with the DNS

A zone transfer is accomplished with the nslookup service

A zone transfer passes all zone information that a DNS server maintains

A zone transfer passes all zone information that a nslookup server maintains

A zone transfer can be prevented by blocking all inbound TCP port 53 connections

Zone transfers cannot occur on the Internet

Q606: You have the SOA presented below in your Zone. Your secondary servers have not been able to contact your primary server to synchronize information. How long will the secondary servers attempt to contact the primary server before it considers that zone is dead and stops responding toqueries?collegae.edu.SOA, cikkye.edu ipad.college.edu. (200302028 3600 3600 604800 3600) *

1 point

One day

One hour

One week

One month

Q607: Tess King is using the nslookup command to craft queries to list all DNS information (such as name Servers, hostnames, MX records, CNAME records, glue records (delegation for child domains), zone serial number, TimeToLive (TTL) records, etc) for a Domain. What do you think Tess King is trying to accomplish? Select the best answer. *

1 point

A zone harvesting

A zone transfer

A zone update

A zone estimate

Q608: A zone file consists of which of the following Resource Records (RRs)? *

1 point

DNS,NS,AXFR,and MX records

DNS,NS,PTR,and MX records

SOA,NS,AXFR,and MX records

SOA,NS,A,and MX records

Q609: Let's imagine three companies (A, B, and C), all competing in a challenging global environment. Company A and B are working together in developing a product that will generate a major competitive advantage for them. Company A has a secure DNS server while company B has a DNS server vulnerable to spoofing. With a spoofing attack on the DNS server of company B, company C gains access to outgoing e-mails from company B. How do you prevent DNS spoofing? (Select the Best Answer.) *

1 point

Install DNS logger and track vulnerable packets

Disable DNS timeouts

Install DNS Anti-spoofing

Disable DNS Zone Transfer

Q610: Which DNS resource record can indicate how long any "DNS poisoning" could last? *

1 point

SOA

TIMEOUT

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