Configuring Network Services Flashcards
Your manager is concerned that if your existing DNS server fails, your company’s fully qualified DNS names will not be resolvable. What should you do?
Create a primary zone.
Create a secondary zone.
Create a host record.
Create a secondary zone.
In order to protect your DNS infrastructure from a single point of failure, you want to ensure that you have a secondary DNS server that receives a copy of the DNS data from the primary server
Which of the following DNS record types resolves to an IPv6 address?
MX
CNAME
AAAA
AAAA
To create a host record that represents an IPv6 address, you will create an AAAA record
You would like to ensure that if anyone sends an e-mail message to employees at the gleneclarke.com domain, it is sent to mail.gleneclarke.com. What type of DNS record should you create?
MX
CNAME
A
MX
An MX record is a mail exchange record that is used to reference the mail server for a given domain
You have installed DHCP on your Windows server and authorized the server. You have created a DHCP scope on the server, but systems on the network are not receiving addresses from your DHCP server. What should you do?
Delete and re-create the scope.
Authorize the server.
Activate the scope.
Activate the scope.
Once you create the DHCP scope, you need to ensure you activate the scope
You wish to configure your DHCP server to assign the address of the router as the default gateway when assigning an IP address to clients. What should you do?
Create an A record.
Create an AAAA record.
Configure the scope options.
Configure the scope options.
In order to have the DHCP server give out the address of the router as well, you would configure the scope options
DHCP communication is a four-phase process. What is the term associated with the first DHCP message?
DHCP ACK
DHCP Discover
DHCP Request
DHCP Discover
The first DHCP message sent by a DHCP client is the DHCP discover message
What type of NAT allows a number of internal systems to use the same public IP address?
Static NAT
SNAT
NAT overloading
NAT overloading
NAT overloading allows a number of internal systems to surf the Internet using the one public address on the NAT device
What mechanism does NAT use to allow multiple systems on the network to use the same public IP address when connecting to the Internet?
SNAT
PAT
TNAT
PAT
Port Address Translation is the mechanism used by NAT overloading to allow multiple internal systems to surf the Internet through the one public address
What type of NAT involves having a single public IP address mapped to a single private address?
Static NAT
PAT
TNAT
Static NAT
Static NAT is when a single public IP address is mapped to a single private address
Which network service is common with virtualization environments and is used to easily move systems from one network to another?
Network Address Translation
Access control list
Software-defined networking
Software-defined networking
Software-defined networking is a feature in virtualization environments that allows you to define different networks through software and dynamically assign those networks to the virtual machines
