Windows Network Infrastructure Quiz 3

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The dnscmd command can be used to create zones. Which other tasks can be performed with it?

Deleting resource records

A client has a server named server1.blah.com and wants to use it as a web server, but wants to have requests point to www.blah.com. Which type of DNS record should he create?

A CNAME record

Which of the following is an example of an SRV record?

AD server

The main page of a company's intranet portal is accessible by the FQDN home.na.adatum.corp. Which of the following actions should be taken to configure an entry in the GlobalNames zone for this?

Add a single CNAME record pointing to the A record in another zone.

By default, zone transfers are disabled. Three different zone transfer methods are available to choose from. Which of the following describes the To any server method?

Allows a data transfer to any server that asks for a zone transfer (least secure)

Which of the following is another designation for an Alias?

Canonical name or CNAME

If a DNS server problem is corrected, such as renaming a system or changing its IP address, but the local system still attempts to connect to the old system, which of the following should be done to obtain the new information from the DNS server quickly?

Execute ipconfig /flushdns.

Which of the following forces a system to update its DNS record?

Execute ipconfig /registerdns.

Which of the following is one of the primary advantages to using Active Directory to store DNS information?

Fault tolerance

Which of the following is the purpose of a priority number in MX records?

For fault tolerance

Which type of DNS zone resolves host names to IP addresses?

Forward lookup zone

Which feature of Windows Server 2016 DNS is intended to eliminate the need for WINS by providing support for single-label names?

GlobalNames zone

DNS servers contain several different types of resource records with which administrators need to be familiar. Which of the following is the correct definition for Name Server (NS) records?

Identifies a DNS server that is authoritative for a zone

DNS servers contain several different types of resource records with which administrators need to be familiar. Which of the following is the correct definition for Canonical Name (CNAME) records?

Identifies an alias for a host name

Issuing the nslookup command with no parameters on a system results in which of the following?

It places you into nslookup's interactive mode.

DNS servers contain several different types of resource records with which administrators need to be familiar. Which of the following is the correct definition for Host (A and AAAA) records?

Maps a domain/host name to an IP address

If an A record maps a host name to an IP address, which of the following does an AAAA record do?

Maps a host name to a single IPv6 address

By using the Active Directory-integrated zone, DNS follows which kind of model?

Multimaster

A stub zone is a zone copy that contains only which type of records?

Necessary resource entries

DNS servers contain several different types of resource records with which administrators need to be familiar. Which of the following is the correct definition for Pointer (PTR) records?

Resolves host names from IP addresses

By default, zone transfers are disabled. Three different zone transfer methods are available to choose from. Which of the following describes the Only to servers listed on the Name Servers tab method?

Restricts zone transfers to secondary DNS servers as defined with NS resource records

By default, zone transfers are disabled. Three different zone transfer methods are available to choose from. Which of the following describes the Only to the following servers method?

Restricts zone transfers to those servers specified in the accompanied list

Before creating PTR records, which DNS objects must be created?

Reverse lookup zones

Which DNS record contains the serial number for the zone?

SOA record

The command nslookup 192.168.1.50 is issued but gets no response. Then, the command nslookup server1 is issued and receives 192.168.1.50 as a response. Based on this scenario, which of the following must be true?

The PTR record doesn't exist.

Time to Live (TTL) means which of the following in DNS parlance?

The length of time a record remains in a DNS cache

A Start of Authority record specifies which kind of information about a zone?

The zone serial number

Which command is used to verify local DNS settings?

ipconfig /all

Which of the following is correct for querying a PTR record?

nslookup 192.168.1.50


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