CEH V8 – Certification Exam Preparation-VII

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QUESTION NO: 601 Under what conditions does a secondary name server request a zone transfer from a primary name server? *

1 point

A. When a primary SOA is higher that a secondary SOA

B. When a secondary SOA is higher that a primary SOA

C. When a primary name server has had its service restarted

D. When a secondary name server has had its service restarted

E. When the TTL falls to zero

QUESTION NO: 602 What ports should be blocked on the firewall to prevent NetBIOS traffic from not coming through the firewall if your network is comprised of Windows NT, 2000, and XP?(Choose all that apply. *

1 point

A. 110

B. 135

C. 139

D. 161

E. 445

F. 1024

Required

QUESTION NO: 603 What is a NULL scan? *

1 point

A. A scan in which all flags are turned off

B. A scan in which certain flags are off

C. A scan in which all flags are on

D. A scan in which the packet size is set to zero

E. A scan with a illegal packet size

QUESTION NO: 604 What is the proper response for a NULL scan if the port is open? *

1 point

A. SYN

B. ACK

C. FIN

D. PSH

E. RST

F. No response

QUESTION NO: 605 Which of the following statements about a zone transfer correct?(Choose three.) *

1 point

A. A zone transfer is accomplished with the DNS

B. A zone transfer is accomplished with the nslookup service

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

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

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

F. Zone transfers cannot occur on the Internet

Required

QUESTION NO: 606 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 to queries? collegae.edu.SOA, cikkye.edu ipad.college.edu. (200302028 3600 3600 604800 3600) *

1 point

A. One day

B. One hour

C. One week

D. One month

QUESTION NO: 607 Tess King is using the nslookup command to craft queries to list all DNS information (such as Name Servers, host names, 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. A zone harvesting

B. A zone transfer

C. A zone update

D. A zone estimate

QUESTION NO: 608 A zone file consists of which of the following Resource Records (RRs)? *

1 point

A. DNS,NS,AXFR,and MX records

B. DNS,NS,PTR,and MX records

C. SOA,NS,AXFR,and MX records

D. SOA,NS,A,and MX records

QUESTION NO: 609 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

A. Install DNS logger and track vulnerable packets

B. Disable DNS timeouts

C. Install DNS Anti-spoofing

D. Disable DNS Zone Transfer

QUESTION NO: 610 Which DNS resource record can indicate how long any "DNS poisoning" could last? *

1 point

A. MX

B. SOA

C. NS

D. TIMEOUT

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