The Bits and Bytes of Computer Networking. Week 4: Network
Services Questions and Answers Rated A
What transport layer protocol does DNS normally configured in order to operate on a modern
use? - -UDP; While DNS over TCP does computer network.
exist, UDP is the most common protocol.
a name server; Computers need a name server
in order to operate on a network.
A DNS TTL determines what? - -How long
a DNS entry is allowed to be cached; TTL stands a subnet mask; All computers need these four
for Time to Live and determines how long a DNS things configured in order to operate on a modern
entry can be cached computer network.
a default gateway; All computers need these four
things configured in order to operate on a modern
How many root servers are there? - -13;
computer network.
There are 13 root servers.
When using Fixed Allocation DHCP, what's used
An A Record contains what? - -IPv4
to determine a computer's IP? - -a MAC
address; An A record contains an IPv4 address
address; Fixed Allocation DHCP ensures that
computers receive an IP address reserved for it
via its MAC address.
Select all that are true. - -One domain
name can point to one IP; This is a valid DNS
setup The process by which a client configured to use
DHCP attempts to get network configuration
One domain name can point to many IPs; this is information is known as _________________. -
a valid DNS setup.
-DHCP Discovery; DHCP Discovery is how
a client determines configuration information.
Many domain names can point to the same IP;
This is a valid DNS setup.
NAT addresses concerns over the dwindling IPv4
address space by ___________________. -
MX stands for ________. - -Mail
-allowing computers using non-routable
exchange; An MX record stores a mail server's
address space to communicate with the Internet;
IP.
NAT allows networks to use non-routable
address space for their internal devices.
A fully qualified domain name can contain how
many characters? - -255; An FQDN is What technique allows for inbound traffic through
limited to a total length of 255 characters.
a NAT? - -Port forwarding ; Port forwarding
is a technique that allows for inbound traffic
through a router configured to NAT.
What are the four things that all computers need
configured in order to operate on a modern
network? Check all that apply. - -An IP The total number of IPv4 addresses is
address; All computers need these four things
1/3
Services Questions and Answers Rated A
What transport layer protocol does DNS normally configured in order to operate on a modern
use? - -UDP; While DNS over TCP does computer network.
exist, UDP is the most common protocol.
a name server; Computers need a name server
in order to operate on a network.
A DNS TTL determines what? - -How long
a DNS entry is allowed to be cached; TTL stands a subnet mask; All computers need these four
for Time to Live and determines how long a DNS things configured in order to operate on a modern
entry can be cached computer network.
a default gateway; All computers need these four
things configured in order to operate on a modern
How many root servers are there? - -13;
computer network.
There are 13 root servers.
When using Fixed Allocation DHCP, what's used
An A Record contains what? - -IPv4
to determine a computer's IP? - -a MAC
address; An A record contains an IPv4 address
address; Fixed Allocation DHCP ensures that
computers receive an IP address reserved for it
via its MAC address.
Select all that are true. - -One domain
name can point to one IP; This is a valid DNS
setup The process by which a client configured to use
DHCP attempts to get network configuration
One domain name can point to many IPs; this is information is known as _________________. -
a valid DNS setup.
-DHCP Discovery; DHCP Discovery is how
a client determines configuration information.
Many domain names can point to the same IP;
This is a valid DNS setup.
NAT addresses concerns over the dwindling IPv4
address space by ___________________. -
MX stands for ________. - -Mail
-allowing computers using non-routable
exchange; An MX record stores a mail server's
address space to communicate with the Internet;
IP.
NAT allows networks to use non-routable
address space for their internal devices.
A fully qualified domain name can contain how
many characters? - -255; An FQDN is What technique allows for inbound traffic through
limited to a total length of 255 characters.
a NAT? - -Port forwarding ; Port forwarding
is a technique that allows for inbound traffic
through a router configured to NAT.
What are the four things that all computers need
configured in order to operate on a modern
network? Check all that apply. - -An IP The total number of IPv4 addresses is
address; All computers need these four things
1/3
