CNSF Review: DHCP and DNS

When you visit a website repeatedly, it is ____ by your computer's DNS to save browsing time making the DNS process more efficient.

A(n) ​ (a)   points a domain or subdomain to an IPv6 addresses. A(n) ​ (b)   is used to match a domain name to an IPv4 address.

A(n) ​ (c)   used to point a domain to email servers using SMTP.

• AAAA record
• B record
• D record
• MX record
• A record

What is the difference between a domain name and an IP address?

• What is the difference between a domain name and an IP address?

• Domain name is a numerical label,

• Domain name is a human-readable address

• IP address is a numerical label

• IP address is a type of domain name.

___ is essential in modern internet browsing as it translates website names into IP addresses.

Reorder the following DHCP process as to how a computer recieves an IP address when it is first powered on.

• Your computer sends a "DHCPREQUEST" message back, which is like saying, "Thank you, I'll take that IP address."

• A computer sends out a "DHCPDISCOVERY" message, kind of like raising its virtual hand, to say, "Hey, I'm here and I need an IP address!"

• The DHCP server sends a "DHCPOFFER" in response to the computer with an available IP address.

• Your computer gives a thumbs up with a "DHCPACK" confirming it has been given permission to use that IP address on the network.

What does DHCP stand for?

• Direct Host Connection Program

• Dynamic Host Control Procedure

• Domain Host Configuration Protocol

• Dynamic Host Configuration Protocol

What is the primary function of a DHCP server in a network?

• It provides security to the network.

• It assigns IP addresses to devices on a network.

• It routes data packets to their destination on a network

• It stores files for network users.

Which of the following is NOT a step in the DHCP lease process?

• Discovery

• Offer

• Acceptance

• Acknowledgment

If a device is turned off, what happens to its DHCP-assigned IP address?

• It can be assigned to a different device.

• It is permanently assigned to that device.

• It is saved for when the device turns back on.

• It becomes inactive and unusable.

What does a CNAME record do?

• Connects to the mail server

• Creates a new domain name

• Indicates the authoritative name server for a domain

• Redirects one domain name to another