Mod 25 - IP Services

A host PC has just booted and is attempting to lease an address through DHCP. Which two messages will the client typically broadcast on the network? (Choose two.)

• DHCPDISCOVER

• DHCPOFFER

• DHCPREQUEST

• DHCPACK

Which statement is true about DHCP operation?

• If the client receives several DHCPOFFER messages from different servers, it sends a unicast DHCPREQUEST message to the server from which it chooses to obtain the IP information.

• A client must wait for lease expiration before it sends another DHCPREQUEST message.

• When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network.

• The DHCPDISCOVER message contains the IP address and subnet mask to be assigned, the IP address of the DNS server, and the IP address of the default gateway.

Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?

• unicast DHCPACK

• broadcast DHCPACK

• unicast DHCPREQUEST

• broadcast DHCPREQUEST

A technician is adding a new PC to a LAN. After unpacking the components and making all the connections, the technician starts the PC. After the OS loads, the technician opens a browser, and verifies that the PC can reach the Internet. Why was the PC able to connect to the network with no additional configuration?

• The PC does not require any additional information to function on the network

• The PC came preconfigured with IP addressing information from the factory.

• The PC was preconfigured to use DHCP.

• The PC used DNS to automatically receive IP addressing information from a server.

Which network server is malfunctioning if a user can ping the IP address of a web server but cannot ping the web server host name?

• the DNS server

• the DHCP server

• the FTP server

• the HTTP server

What type of information is contained in a DNS MX record?

• the FQDN of the alias used to identify a service

• the IP address for an FQDN entry

• the domain name mapped to mail exchange servers

• the IP address of an authoritative name server

Which protocol translates a website name such as www.cisco.com into a network address?

• HTTP

• FTP

• DHCP

• DNS

What action does a DNS server take if it does not have an entry for a requested URL?

• The server drops the request.

• The server returns a "page not found" response to the client.

• The server checks with another DNS server to see if it has an entry.

• The server assigns a temporary IP address to the name and sends this IP address to the client.

Refer to the exhibit. Which protocol allows a user to type www.cisco.com instead of an IP address to access the web server?

• DNS

• 
  HTTP

• HTML

• FTP

Refer to the exhibit. Host A is trying to resolve the name www.internal.cisco.com to an IP address. When the name resolution request is received by a root DNS server, which server will be included in the response for further resolution?

• DNS server A

• DNS server B

• DNS server C

• web server D