| Coverage :
DNS
NAT
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| 1. | Which ns lookup switch will be used to check the MX resource record information from the command prompt? |
| a. | | Set all |
| b. | | Set root=name |
| c. | | Domain=name |
| d. | | Set type=MX
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| 2. | Which of the followings statements are true regarding DNS labels? |
| a. | | Label supports a maximum of 63 characters |
| b. | | Labels are case-sensitive |
| c. | | Labels are case-insensitive |
| d. | | Labels can start with a hyphen |
| e. | | Blanks and underscores are not allowed in labels
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| 3. | Jack is the network administrator for the company XYZ. His company has many web sites running on windows server 2003. New branches are being added to the company network due to expansion of his company. Secondary DNS server has been installed on the branches. How can Jack assure that zone transfer between DNS servers are error free? |
| a. | | Secure cache against pollution |
| b. | | Fail on load if bad zone data |
| c. | | Disable recursion |
| d. | | Configure forwarders
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| 4. | Harry is the network administrator of the company. He configured DNS Servers on Windows server 2003 having the zone name for his company. A Primary DNS Server is configured in HQ and many Scondary DNS Servers are running on Branch Offices on the same platform (Windows Server 2003). Which type of zone transfer would be supported by Windows server 2003? |
| a. | | AXFR |
| b. | | IXFR |
| c. | | P-node |
| d. | | PXFR
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| 5. | A windows server 2003 has been configured for test.com domain. Another DNS server has been created for tested.test.com domain. Both are on different locations and connected over dial-up connections. Incremental zone transfer has been configured between both servers. Which tool should the network administrator use to monitor the DNS zone transfer? |
| a. | | Performance monitor |
| b. | | Network monitor |
| c. | | Simple test and recursive query |
| d. | | System monitor
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| 6. | Which of the following statements are true regarding root zone? |
| a. | | There can be any number of root zones |
| b. | | There are 13 root zones in the entire DNS structure |
| c. | | Root zone is the FQDN of DNS format |
| d. | | Root zone is the ancestor of all zones
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| 7. | What does the non-interactive mode mean while running nslookup command? |
| a. | | Command list is available in this mode |
| b. | | Query domain name is just entered after nslookup command |
| c. | | Only authoritative servers will be listed |
| d. | | All listed name servers will be published
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| 8. | What may be the problems that users may face if DNS is not configured correctly? |
| a. | | User cannot login on to Domain |
| b. | | Network resources cannot be accessed |
| c. | | Workstations cannot be joined in domain |
| d. | | Users will not be authenticated by the domain
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| 9. | The DNS Server running on windows server 2003 as Active-Directory Integerated Zone is damaged and the Domain consists of some bad data. Which utility can be used to clear incorrect DNS registration information? |
| a. | | Ipconfig/registerdns |
| b. | | Jetpack |
| c. | | Nbtstat |
| d. | | Ipconfig/flushdns
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| 10. | Which of the following DNS folders must be present in DNS console to ensure that DNS is registering the Active directory records? |
| a. | | _msdcs |
| b. | | _sites |
| c. | | _tcp |
| d. | | _gc |
| e. | | _pdc
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| 11. | The administrator tries to enter the address in the Forwarders field of DNS server, but finds the checkbox unavailable. How should he correct the error? |
| a. | | He is not permitted to do so |
| b. | | Delete the "." zone |
| c. | | Configure the reverse lookup zone |
| d. | | Install second adapter
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| 12. | Jack is the network administrator for his company running Windows Server 2003 that is configured as DNS server for his domain. Various branch offices located at different parts use secondary DNS servers for resolving DNS queries. If secondary server fails, they approach primary DNS server in Main office. Hence DNS traffic and zone transfer between HQ and branches increases the traffic. How can the network be changed to reduce DNS traffic between servers? |
| a. | | Run ipconfig/flushdns command |
| b. | | Allow only secure updates |
| c. | | Use caching-only servers |
| d. | | Use active-directory integerated zone
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| 13. | Which ports, among the following are used by DNS? |
| a. | | TCP 53 |
| b. | | UDP 53 |
| c. | | TCP 119 |
| d. | | UDP 119
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| 14. | The network administrator runs DNS server in Windows Server 2003 environment. After some days, the DHCP server fails to register and updates DNS dynamic updates. The DHCP server starts logging an error message in the DHCP server log file. The error shown is "DNS_ERROR_TRY_AGAIN_LATER". What is the cause of the above generated error? |
| a. | | DNS server is not supporting Dynamic Updates |
| b. | | DNS server bound to be in Active-Directory Integerated Zone and Active-Directory has failed to start |
| c. | | The administrator is not authorized to start DNS service using credentials supplied |
| d. | | Maximum queue count size has been surpassed
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| 15. | The network has been configured with DNS server running on Windows Server 2003.When the administrator tests DNS through nslookup command from the client computer, he discovers that DNS is resolving name to address mapping, but fails in address to name resolution. How can this be corrected? |
| a. | | Create reverse lookup zone |
| b. | | Configure DNS address on the client computer as preferred address |
| c. | | Restart the DNS services |
| d. | | Run the ipconfig/flushdns command
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| 16. | One DNS and DHCP server has been implemented running on Windows Server 2003, and client on Windows XP and 2000 Professionals. Later it was discovered that one of the clients in the DNS server having 35 PTR records was pointing to the same client name. How can the administrator delete these outdated records? |
| a. | | Ipconfig/flushdns |
| b. | | Reload the dns server |
| c. | | Scavenging the stale resource records |
| d. | | Disable recurssion
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| 17. | Allen's network consists of one Windows Server 2003 having DNS server installed on it. His network also consists of 500 Windows XP clients. It has very slow WAN links and he does not want his DNS server to use maximum bandwidth for name resolution. Which of the following features can configure Allen's name server to forward any request to a specific authoritative name server for that zone? |
| a. | | Forwarders |
| b. | | Conditional forwarding |
| c. | | Iterative query |
| d. | | BIND secondaries
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| 18. | What is true regarding the character underscore( _ ) in DNS zone naming convention? |
| a. | | Domain name can consist of underscore |
| b. | | It is the reserved character for active directory |
| c. | | Special approval is needed for using underscore |
| d. | | Underscore can never be used anywhere
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| 19. | Which of the following zone is only read-only in Windows Server 2003? |
| a. | | Primary zone |
| b. | | Active-directory Integrated zone |
| c. | | Secondary zone |
| d. | | Stub zone
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| 20. | How will the administrator configure Active-Directory Integrated Zone instead of Primary/Secondary Zone? |
| a. | | Primary/secondary zone generates a lot of zone transfer traffic |
| b. | | Active directory stores zone information within active directory instead of text file |
| c. | | Resource records can be entered in secondary servers |
| d. | | Secondary zone works even if the primary zone fails
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| 21. | The network administrator has implemented a DNS server in Windows 2003 environment but he is unable to use stub zone. Which records, among the following, are supported in stub zone so that he can use this new feature in Windows Server 2003 instead of the secondary zone? |
| a. | | MX |
| b. | | SOA |
| c. | | SRV |
| d. | | NS |
| e. | | CNAME |
| f. | | A
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| 22. | Which DNS file points to the well known Top-Level Domains (Root Zones)? |
| a. | | hosts.txt |
| b. | | lmhosts.sam |
| c. | | cache.dns |
| d. | | dnsapi.dll
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| 23. | The network administrator for a company running DNS server in Windows 2003 server runs nslookup command for troubleshooting. He finds an error message "Unspecified error". What does it mean? |
| a. | | Incorrect syntax |
| b. | | DNS server does not exist |
| c. | | Resource records are not available |
| d. | | Number of NS rescords exceeded its capacity
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| 24. | A network consists of single Domain running on Windows Server 2003 ans 2000 clients on Windows XP. Each client is configured as DNS client. One client is complaining that he is unable to access resource using names. The access through IP address is working. Other users have no problem. What should the administrator do to overcome the situation? |
| a. | | Restart the DNS server |
| b. | | Run ipconfig/flushdns command at client computer |
| c. | | Wrong DNS server address may be entered |
| d. | | Convert DNS into Active directory Integerated Zone
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| 25. | Which of the following is equivalent to the ipconfig/flushdns? |
| a. | | Scavenge stale resource records |
| b. | | Arp -a |
| c. | | Clear cache |
| d. | | Reload
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| 26. | Which utilities, among the following, can be used to check DNS performance and its working? |
| a. | | nslookup |
| b. | | netsh |
| c. | | Performance monitor |
| d. | | Test simple and recurssive queries |
| e. | | Network monitor |
| f. | | Security configuration and analysis
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| 27. | DNS server is configured on Windows Server 2003 named server1. The company's zone is configured as abc.com in DNS server. An intranet site is hosted in server1. When users access the site using http://server1.abc.com, they are able to open the site, and when they use www.abc.com to access the site, it fails. How should this be corrected? |
| a. | | Enter the reverse lookup zone |
| b. | | Run the ipconfig/flushdns |
| c. | | Reload the DNS service |
| d. | | Enter the CNAME records for www
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| 28. | DNS server has been configured on Windows 2003 Server to host the web site for the administrator's company. He wants the DNS data to be replicated to other servers forcibly without waiting for default replication timers. How can the DNS be replicated forcibly? |
| a. | | Increment the serial number to force replication |
| b. | | Replication time once given can never be changed |
| c. | | Reload the DNS server |
| d. | | Update the schema now
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| 29. | The Administrator in the user's network has configured DNS server on Windows Server 2003. Root hints are enabled to use External Name Resolution. But DNS has failed to do so. What should he do to enable this resolution? |
| a. | | Configure reverse lookup-zone |
| b. | | Disable resurssion |
| c. | | Configure Root Hints as Name Servers |
| d. | | Delete "." zones under forward lookup zone
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| 30. | Which command can be used to repopulate the Active Directory DNS entries? |
| a. | | netsh |
| b. | | netdiag |
| c. | | netstat |
| d. | | nslookup
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| 31. | Which of the following is a type of NAT in overloading? |
| a. | | An unregistered ip address is mapped to a registered ip on a one-to-one basis |
| b. | | A registered ip address mapped to the unregistered ip address |
| c. | | Multiple unregistered IP addresses are mapped to a single registered IP address using different ports |
| d. | | Multiple registered IP addresses are mapped to a single unregistered IP address using different ports
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| 32. | What should be done to resolve name resolution traffic for NAT environment without installing DNS server in NAT server in windows server 2003? |
| a. | | Use preferred DNS server address for resolution |
| b. | | Configure DNS proxy on NAT server |
| c. | | Create Primary DNS zone |
| d. | | Filter Firewall to allow access to port 53
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| 33. | Which of the following is the limitation of NAT over ICS? |
| a. | | NAT cannot be configured over dial-up connections |
| b. | | NAT cannot filter inbound and outbound traffic |
| c. | | NAT answers incoming calls after only two rings |
| d. | | NAT faces duplicate IP addresses problems
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