Deploy and Configure Core Network Services Flashcards
Which type of zone prevents the DNS server from looking outside the zones on the DNS server to resolve a name?
A root zone
Which Hyper-V feature allows you to have a VM change its source MAC address for outgoing packets?
MacAddressSpoofing
What subnet mask would you use to further divide the 10.10.0.0/16 network to a subnet that supports up to 525 hosts?
/22 or 255.255.252.0 which supports 2^10-2, or 1024, hosts per subnet
Which Hyper-V feature drops DHCP server messages coming from a VM?
DHCPGuard
If a client has a DHCP reservation, the DHCP allow list is not enabled, and the client is on the DHCP deny list, will the client receive an IP address from the DHCP server?
No. You’ll have to remove the MAC address for that client from the deny list
If a DNS server has both a conditional forwarder defined for a given domain and a server level forwarder, which forwarder will be used to resolve a query in the given domain?
The conditional forwarder
Which DHCP option number specifies the DNS domain name that the client should use for DNS computer name resolution?
015
Which Hyper-V feature offloads the per-packet encryption operations from the VM to the NIC, resulting in substantial CPU savings?
IPsec Task Offload (IpsecTO)
Why would you get the error *** ns.domain.com can’t find child.domain.com.: Non-existent domain when using the nslookup utility to query records in a child domain?
The name server does not allow zone transfers to the zone that contains records for the child domain
What subnet mask would you use to further divide the 10.10.0.0/16 network to a subnet that supports up to 2100 hosts?
/20 or 255.255.240.0 which supports 2^12-2, or 4094, hosts per subnet
Which zone is designed to resolve single-label names?
The GlobalNames zone
What technology uses 32-bit IP addresses and allows for the use of 4 billion addresses?
IPv4
What will happen if all scopes on a DHCP server are activated, but the DHCP server is not authorized?
If the DHCP server is not authorized, it will not lease IP addresses to DHCP clients
How can you deny specific computers from obtaining an IP address from a DHCP server?
Create a deny filter based on MAC address of the computer
What should you do to ensure that only authenticated users are able to register their records in the DNS zone?
Create an Active Directory-integrated zone and configure the zone for secure dynamic updates only
What prevents a range of IP addresses within a DHCP scope from being leased to any computer?
scope exclusion
What cmdlet removes the routing entry for the default gateway before applying a new one?
Remove-NetRoute -DestinationPrefix ::/0 -Confirm
What is the default number of pooled MAC addresses available to a server running Hyper-V?
255
Which Hyper-V feature drops router advertisement and redirection messages from unauthorized VMs?
RouterGuard
What subnet mask would you use to further divide the 192.168.0.0/24 network to a subnet that supports up to 110 hosts?
/25 or 255.255.255.128
What are the five characteristics that you can use to segregate or group client computers based on a DHCP policy?
MAC Address Vendor Class User Class Client Identifier Relay Agent Information
If a client has a DHCP reservation, there is a DHCP allow list enabled, and the client is not on the DHCP allow list, will the client receive an IP address from the DHCP server?
No. You’ll need to add the client’s MAC address to the list.
How must you configure a Windows Server 2012 R2 server in a workgroup with the DNS server role loaded in order to support Active Directory zones?
Make the server a domain controller
Which type of zone resolves an IP address to a name?
A reverse lookup zone
Why would you get the error *** Can’t find server name for address w.x.y.z: Timed out when starting the nslookup utility?
The name server does not exist or the name server does not have a PTR record in a reverse lookup zone
Which component relays DHCP messages between DHCP clients and DHCP servers on different IP networks separated by a router that is not RFC 1542 compliant?
the DHCP Relay Agent
What are the first valid subnets that you can use if you need to subdivide the 192.168.0.0/24 into three subnets with 57 computers on each subnet?
- 168.0.0/26
- 168.0.64/26
- 168.0.128/26
If you use a Windows Server 2008 R2 DNS server and implement ISATAP, what must you configure on the DNS server?
To allow name resolution for the ISATAP name, you must remove ISATAP from the global query block list of the DNS Server service for each DNS server on your intranet running Windows Server 2008 R2 or Windows Server 2008.
When configuring MAC address ranges on different Hyper-V hosts, what guidelines should you follow?
- The ranges that you specify cannot overlap.
- The first three octets of the beginning and ending MAC address must be the same.
- You must enter a valid hexadecimal values between 00 and FF.
Which type of zone will prevent the use of forwarders or the use of root DNS servers listed in the Root Hints tab of the DNS server?
A root zone
Which DHCP option number specifies a list of IP addresses for DNS name servers available to the client?
006
What technology do you use to allow applications that do not support IPv6 to communicate with IPv6 hosts?
Port Proxy
What feature of a Windows Server 2012 R2 server allows the computer a local Internet router to provide a site with IPv6 connectivity over the IPv4 Internet?
6to4 router
What technology is similar to 6to4 in that it allows you to tunnel IPv6 packets over the IPv4 Internet?
Teredo
What technology is an address-assignment technology that you can use to provide unicast IPv6 connectivity between IPv6/IPv4 hosts over an IPv4 intranet?
ISATAP
What IPv6 transition technology defines a method for generating a link-local IPv6 address from an IPv4 address, and a mechanism to perform Neighbor Discovery on top of IPv4?
ISATAP
What Windows Server 2012 R2 functionality allows communication between IPV6 and IPV4 networks that are behind NAT servers when you cannot use ISATAP or 6to4?
Teredo
What are two ways to display the IPv6 Route Table on a Windows Server 2012 R2 server from the PowerShell prompt?
Run either the netstat -r command or the Get-NetRoute cmdlet from the PowerShell prompt.
Which IPv6 prefix is a multicast allocation?
FF00::/8
Which IPv6 prefix is a link-scoped unicast allocation?
FE80::/10
Which IPv6 prefix is a unique local unicast allocation?
FC00::/7
Which IPv6 prefix is a global unicast allocation?
2000::/3
What technology uses 128-bit IP addresses and allows for the use of 340 undecillion addresses?
IPv6
For each IP network segment that contains DHCP clients but does not contain a DHCP server, what component must be installed if the router does not forward Bootp broadcasts?
the DHCP Relay Agent
