Chapter 2 & 1

DNS clients maintain a text file called Hosts that can contain static DNS entries, within what Windows directory is this file stored?

%systemroot%\System32\drivers\etc

In CIDR notation, the subnet mask 255.255.255.0 is represented by what prefix?

/24

What command option for the dnscmd command lists all zones on the server?

/enumzones

What ipconfig command line option can be used to delete cached DNS information from memory?

/flushdns

The decimal number 168 can be represented using what series of binary digits below?

10101000

The default setting for a secondary zone's refresh interval is how many minutes?

15 minutes

The binary number 11000000 represents what number below in decimal?

192

Which prefix is used by all Teredo related addresses?

2001::/32

Which of the following is a valid IPv6 address?

2001::1

How many bits make up an IPv4 address, versus an IPv6 address?

32; 128

How many usable host addresses exist within a network with a CIDR prefix of /23?

510

On which UDP port do DHCP servers listen for DHCP client messages?

67

An IPv4 octet represents how many binary bits?

8

What DNS record type is used for an IPv6 host record?

AAAA

What PowerShell cmdlet can be used to create a new Active Directory integrated primary zone?

Add-DnsServerPrimaryZone

What protocol resolves a computer's IPv4 address to its physical, or Media Access Control (MAC) address?

Address Resolution Protocol (ARP)

The 169.254.78.9 IP address is an example of what type of IP address?

Automatic Private IP Addressing (APIPA)

The IP address 129.53.82.20 falls under what IP address class?

B

What type of DNS record is used to contain an alias for another record, allowing for the use of different names for the same host?

CNAME record

What type of DNS servers field DNS queries, send iterative queries to upstream DNS servers, or send requests to forwarders and then store the results?

Caching-only server

What specific term is best used to describe a computer making a DNS query?

DNS resolver

Which of the following options can an administrator enable to improve DNS security?

Do not allow dynamic updates

Which type of resource record addition allows computers to register or update their own DNS records, or DHCP can update DNS on behalf of the clients when the clients lease a new IP address?

Dynamic DNS

What type of DNS server is a DNS server to which other DNS servers send requests they can't resolve themselves?

Forwarder server

How can an administrator retrieve the IP address settings of a computer using PowerShell?

Get-NetIPConfiguration

In a ping response packet, what does the TTL field indicate?

How many hops the packet can go through before the packet is expired and discarded.

Who is responsible for the management of the Internet root servers?

Internet Assigned Numbers Authority (IANA)

What type of DNS query causes a DNS server to respond with the best information it currently has in its local database?

Iterative query

Which of the following is the Physical-layer address that is an integral part of a network interface card?

MAC address

The FQDN of a name server that has authority over a domain is noted in what type of DNS record?

NS

What DNS record type is used to resolve a known IP address to a hostname?

Pointer Record

Which DNS zone type contains a read/write master copy of all resource records for the zone?

Primary zone

What RFC defines the DNS resource record types?

RFC 1183

Which of the following specifies how often a secondary DNS server attempts to renew its zone information?

Refresh interval

Which DNS zone category contains PTR records that map IP addresses to names and is named after the IP network address of the computers whose records it contains?

Reverse lookup zone

When data within a zone changes, what information in the SOA record changes to reflect that the zone information should be replicated?

Serial number

Which of the following DNS record types specifies a hostname and port number for servers that supply specific services?

Service Location

An administrator working on a Windows Server 2016 Server Core installation needs to disable DHCP all interfaces on the server. What PowerShell command should be used?

Set-NetIPInterface

What specific record type is found in every zone and contains information that identifies the server primarily responsible for the zone as well as some operational properties for the zone?

Start of Authority Records

In a zone's Properties dialog box, what option is unavailable under Dynamic updates for only standard zones?

The Secure only option

The responsible person section of an SOA record contains what information?

The email address of the responsible person

What option is available on a Host A record to tell the system how long the record should remain in the database after it was created or last updated?

Time to live

When a dynamic DNS record is created, what is the TTL value used for?

To specify how long the record should remain in the DNS database

The .com, .net, and .edu are all examples of what level of the DNS naming hierarchy?

Top-level domain names

How should an administrator test the functionality of DNS operation on a domain controller, as well as troubleshoot issues with DNS forwarders, delegation, dynamic updates, and record registration?

Using dcdiag /test:dns

What specific protocol provides automatic IP address configuration and operates at the Application layer?

dhcp

Which Windows command line utility below can be used to check for resource records on a server, verify delegations, verify resource records needed for AD replication, and perform e-mail connectivity tests?

dnslint

A broadcast is a packet addressed to specifically assigned computers on the network.

false

A segment is the Network-layer unit of data used by IPv4 and IPv6.

false

A zone id is used to distinguish which interface an IPv6 unique local IPv6 address is bound to.

false

An authoritative server for a domain holds a partial copy of a zone's resource records.

false

An iterative query instructs the DNS server to process the query until it responds with an address that satisfies the query or with an "I don't know" message.

false

Resource records are a grouping of DNS information that belongs to a contiguous portion of the DNS namespace.

false

Routing packets is the key responsibility of the TCP protocol.

false

TCP is a Transport-layer protocol used to communicate between applications, but it's a lightweight Transport-layer protocol, meaning it lacks many of the reliability and flow control features of UDP.

false

The use of WINS forward lookup is enabled by default.

false

When serious DNS debugging is warranted, you can enable debug logging in the server's Advanced dialog box.

false

Windows operating systems do not allow you the option to assign multiple IP addresses to a single network connection.

false

What formatted unit of data has an error-checking code called the frame check sequence and is ready to be transferred to the network medium?

frame

A valid reverse lookup zone consists of the network ID's octets in reverse order, with what at the end of the name?

in-addr.arpa

What technique is used by computers to determine the network ID of an IP address?

logical AND operation

Which of the following best describes when a packet is addressed so that more than one destination can receive it and the first octet is in the range 224 to 239?

multicasting

What specific server configuration is connected to different IP networks using two or more NICs?

mutlihomed

What command can be used to send test queries to a target DNS server?

nslookup

What command line utility can be used to display the default route, as well as all routing table entries?

route

What contains the destination and source port numbers used to identify Application-layer protocols, and is the Transport-layer data unit?

segment

Which of the following allows the reallocation of bits from the network portion of an IP address to the host portion, combining subnets?

supernetting

What protocol in the TCP/IP suite provides reliable data transfer between applications at the transport-layer?

tcp

Which of the following is not a standard component of Teredo tunneling?

teredo proxy

What command displays the route packets take between two computers?

tracert

A zone that is not integrated into Active Directory is referred to as a standard zone, and the zone data is stored in a text file.

true

Addresses starting with fe80 are called link-local IPv6 addresses.

true

DNS audit events track changes to a DNS server such as when zone or resource changes are made.

true

ICMP is a Network-layer protocol the ping program uses to test whether a computer can communicate with another computer.

true

The Intra-Site Automatic Tunnel Addressing Protocol is used to transmit IPv6 packets between dual IP layer hosts across an IPv4 network.

true

The MX record type is used to designate mail exchangers or mail servers for e-mail.

true

The entire DNS tree is called the DNS namespace.

true

The reserved name localhost always corresponds to the IP address 127.0.0.1 so that a local machine can always be referenced by this name.

true

You can configure an internal DNS server as a root server by creating an FLZ with the "." name.

true

What type of IPv6 address specifies a single interface on a device?

unicast