WGU D316 IT FOUNDATIONS CORRECT EXAMS
SCRIPT QUESTIONS AND ANSWERS SURE A+
✔✔What does the router use to convert between the private and public addresses? -
✔✔Network address translation (NAT)
✔✔What is the minimum configurations for a host to communicate on an IPv4 network?
- ✔✔Each host must be configured with an IP address and subnet mask at a minimum
to communicate on an IPv4 network.
✔✔How many bits and how is an IPv6 address written? - ✔✔An IPv6 address is a 128-
bit number and is written in hexadecimal notation.
✔✔What are the two main parts of an IPv6 address? - ✔✔the first 64 bits are used as a
network ID, while the second 64 bits designate a specific interface.
✔✔What is "dual stack"? - ✔✔Most hosts and routers can operate both IPv4 and IPv6
at the same time. This is referred to as "dual stack."
✔✔TCP sends what packets? - ✔✔SYN, SYN/ACK, and ACK packets. FIN packets.
Allows the receiver to send a negative acknowledgement (NACK) to force
retransmission of a missing or damaged packet.
, ✔✔DHCP requests and TFTP use TCP or UDP? - ✔✔UDP
✔✔TCP Protocols - ✔✔FTP, SSH, Telnet, SMTP, DNS, HTTP, POP, IMAP, SMB
HTTPS, LDAP, RDP
✔✔UDP Protocols - ✔✔DNS, DHCP (Client/Server), SNMP
✔✔Host name can be combined with a domain name and suffix equals... - ✔✔Fully
qualified domain name (FQDN)
✔✔DNS "A" record - ✔✔An address (A) record is used to resolve a host name to an
IPv4 address.
✔✔DNS "AAAA" record - ✔✔An AAAA record resolves a host name to an IPv6 address.
✔✔DNS "MX" record - ✔✔A Mail Exchange (MX) record is used to identify an email
server for the domain so that other servers can send messages to it.
✔✔DNS "TXT" record - ✔✔A TXT record is used to store any free-form text that may be
needed to support other network services.
✔✔...uses a TXT resource record published via DNS by an organization hosting email
service. - ✔✔Sender Policy Framework (SPF)
✔✔...uses cryptography to validate the source server for a given email message. -
✔✔DomainKeys Identified Mail (DKIM)
✔✔...framework ensures that SPF and DKIM are being utilized effectively. Can use SPF
or DKIM or both. - ✔✔Domain-Based Message Authentication, Reporting, and
Conformance (DMARC)
✔✔Problems have ______, __________, and __________________. - ✔✔causes,
symptoms, and consequences.
✔✔6 Steps of Troubleshooting Model... - ✔✔1.) Identify the Problem
2.) Establish a theory of probable cause (question obvious)
3.) Test the theory to determine the cause
4.) Establish a plan of action to resolve the problem and implement the solution
5. Verify full-system functionality and, if applicable, implement preventive measures
6.) Document the findings, actions, and outcomes
✔✔What should you do when Identifying the Problem? - ✔✔Gather Information from the
User, Question the Obvious, Perform Backup
SCRIPT QUESTIONS AND ANSWERS SURE A+
✔✔What does the router use to convert between the private and public addresses? -
✔✔Network address translation (NAT)
✔✔What is the minimum configurations for a host to communicate on an IPv4 network?
- ✔✔Each host must be configured with an IP address and subnet mask at a minimum
to communicate on an IPv4 network.
✔✔How many bits and how is an IPv6 address written? - ✔✔An IPv6 address is a 128-
bit number and is written in hexadecimal notation.
✔✔What are the two main parts of an IPv6 address? - ✔✔the first 64 bits are used as a
network ID, while the second 64 bits designate a specific interface.
✔✔What is "dual stack"? - ✔✔Most hosts and routers can operate both IPv4 and IPv6
at the same time. This is referred to as "dual stack."
✔✔TCP sends what packets? - ✔✔SYN, SYN/ACK, and ACK packets. FIN packets.
Allows the receiver to send a negative acknowledgement (NACK) to force
retransmission of a missing or damaged packet.
, ✔✔DHCP requests and TFTP use TCP or UDP? - ✔✔UDP
✔✔TCP Protocols - ✔✔FTP, SSH, Telnet, SMTP, DNS, HTTP, POP, IMAP, SMB
HTTPS, LDAP, RDP
✔✔UDP Protocols - ✔✔DNS, DHCP (Client/Server), SNMP
✔✔Host name can be combined with a domain name and suffix equals... - ✔✔Fully
qualified domain name (FQDN)
✔✔DNS "A" record - ✔✔An address (A) record is used to resolve a host name to an
IPv4 address.
✔✔DNS "AAAA" record - ✔✔An AAAA record resolves a host name to an IPv6 address.
✔✔DNS "MX" record - ✔✔A Mail Exchange (MX) record is used to identify an email
server for the domain so that other servers can send messages to it.
✔✔DNS "TXT" record - ✔✔A TXT record is used to store any free-form text that may be
needed to support other network services.
✔✔...uses a TXT resource record published via DNS by an organization hosting email
service. - ✔✔Sender Policy Framework (SPF)
✔✔...uses cryptography to validate the source server for a given email message. -
✔✔DomainKeys Identified Mail (DKIM)
✔✔...framework ensures that SPF and DKIM are being utilized effectively. Can use SPF
or DKIM or both. - ✔✔Domain-Based Message Authentication, Reporting, and
Conformance (DMARC)
✔✔Problems have ______, __________, and __________________. - ✔✔causes,
symptoms, and consequences.
✔✔6 Steps of Troubleshooting Model... - ✔✔1.) Identify the Problem
2.) Establish a theory of probable cause (question obvious)
3.) Test the theory to determine the cause
4.) Establish a plan of action to resolve the problem and implement the solution
5. Verify full-system functionality and, if applicable, implement preventive measures
6.) Document the findings, actions, and outcomes
✔✔What should you do when Identifying the Problem? - ✔✔Gather Information from the
User, Question the Obvious, Perform Backup
