CERTIPORT COMPREHENSIVE EXAM UPDATED QUESTIONS
AND ANSWERS RATED A+
✔✔DHCP (Dynamic Host Configuration Protocol) - ✔✔UDP 67, 68
A network service that provides automatic
assignment of IP addresses and other TCP /IP configuration information.
✔✔ipconfig /all - ✔✔Show all TCP/IP details
displays client IP information
Assigns addresses automatically for a lease amount of time created by the scope
Reservations and exclusions are for static IP addresses
✔✔APIPA (Automatic Private IP Addressing) - ✔✔Feature of Windows that
automatically assigns an IP address to the system when the client cannot obtain an IP
address automatically.
169.254.x.x address assigned when DHCP Server is down or not available
✔✔When DHCP is down.. - ✔✔Computer will try to re-lease at 50%
✔✔DHCP relay agent - ✔✔is needed if the client is on a different subnet
✔✔DNS (Domain Name System) - ✔✔53 TCP/UDP
Domain Name Service: Resolves FQDN to IP addresses
✔✔DNS Record types - ✔✔Hosts file stores all the DNS records
A = host record
AAAA = IPv6 host record
MX = Email record
CNAME = Alias record
PTR is the reverse IP address to the Domain Name
A - Record - Domain name to IP address
✔✔mail.abc.com mail - ✔✔host computer/Server, abc = domain name
✔✔FTP (File Transfer Protocol) - ✔✔Data 20
✔✔FTP (File Transfer Protocol) - ✔✔Control 21
✔✔SSH (Secure Shell) - ✔✔TCP 22
UDP 22
✔✔Telnet (Telecommunication Network) - ✔✔TCP 23
✔✔SMTP (Simple Mail Transfer Protocol) - ✔✔TCP 25
, ✔✔DNS (Domain Name System) - ✔✔53
✔✔DHCP (Dynamic Host Configuration Protocol) - ✔✔UDP 67, 68
✔✔HTTP (Hypertext Transfer Protocol) - ✔✔TCP 80
✔✔POP3 (Post Office Protocol version 3) - ✔✔TCP 110
✔✔IMAP (Internet Message Access Protocol) - ✔✔TCP 143
UDP 143
✔✔SNMP (Simple Network Management Protocol) - ✔✔UDP 161
✔✔HTTPS (Hypertext Transfer Protocol Secure) - ✔✔An encrypted version of HTTP. It
uses port 443.
✔✔Level 2 Protocol - ✔✔Point to Point Protocol (PPP)
✔✔Query Protocol - ✔✔LDAP port 389
✔✔TTL (Time to Live) - ✔✔is a resources of time before expiring
✔✔Each node on the network has: - ✔✔NIC and IP address
✔✔ipconfig
ipconfig /all - ✔✔-No default gateway = cannot access the Internet
- Ping "request timed out" = packets did not return and status of server is unknown
- Displays client address
✔✔ping - ✔✔Tests and verifies network connectivity (ICMP protocol)
✔✔arp -a - ✔✔Shows ip address to mac address
✔✔tracert/traceroute - ✔✔Shows hops/routers along route maximum 30 hops
✔✔netstat (network statistics) - ✔✔Show ports local/external and incoming connections
✔✔nslookup - ✔✔Used to determine the DNS settings on a client computer
✔✔Wins - ✔✔Windows Internet Name Service resolves NetBIOS to IP addresses
✔✔IPSec (Internet Protocol Security) - ✔✔Data confidentiality and integrity
AND ANSWERS RATED A+
✔✔DHCP (Dynamic Host Configuration Protocol) - ✔✔UDP 67, 68
A network service that provides automatic
assignment of IP addresses and other TCP /IP configuration information.
✔✔ipconfig /all - ✔✔Show all TCP/IP details
displays client IP information
Assigns addresses automatically for a lease amount of time created by the scope
Reservations and exclusions are for static IP addresses
✔✔APIPA (Automatic Private IP Addressing) - ✔✔Feature of Windows that
automatically assigns an IP address to the system when the client cannot obtain an IP
address automatically.
169.254.x.x address assigned when DHCP Server is down or not available
✔✔When DHCP is down.. - ✔✔Computer will try to re-lease at 50%
✔✔DHCP relay agent - ✔✔is needed if the client is on a different subnet
✔✔DNS (Domain Name System) - ✔✔53 TCP/UDP
Domain Name Service: Resolves FQDN to IP addresses
✔✔DNS Record types - ✔✔Hosts file stores all the DNS records
A = host record
AAAA = IPv6 host record
MX = Email record
CNAME = Alias record
PTR is the reverse IP address to the Domain Name
A - Record - Domain name to IP address
✔✔mail.abc.com mail - ✔✔host computer/Server, abc = domain name
✔✔FTP (File Transfer Protocol) - ✔✔Data 20
✔✔FTP (File Transfer Protocol) - ✔✔Control 21
✔✔SSH (Secure Shell) - ✔✔TCP 22
UDP 22
✔✔Telnet (Telecommunication Network) - ✔✔TCP 23
✔✔SMTP (Simple Mail Transfer Protocol) - ✔✔TCP 25
, ✔✔DNS (Domain Name System) - ✔✔53
✔✔DHCP (Dynamic Host Configuration Protocol) - ✔✔UDP 67, 68
✔✔HTTP (Hypertext Transfer Protocol) - ✔✔TCP 80
✔✔POP3 (Post Office Protocol version 3) - ✔✔TCP 110
✔✔IMAP (Internet Message Access Protocol) - ✔✔TCP 143
UDP 143
✔✔SNMP (Simple Network Management Protocol) - ✔✔UDP 161
✔✔HTTPS (Hypertext Transfer Protocol Secure) - ✔✔An encrypted version of HTTP. It
uses port 443.
✔✔Level 2 Protocol - ✔✔Point to Point Protocol (PPP)
✔✔Query Protocol - ✔✔LDAP port 389
✔✔TTL (Time to Live) - ✔✔is a resources of time before expiring
✔✔Each node on the network has: - ✔✔NIC and IP address
✔✔ipconfig
ipconfig /all - ✔✔-No default gateway = cannot access the Internet
- Ping "request timed out" = packets did not return and status of server is unknown
- Displays client address
✔✔ping - ✔✔Tests and verifies network connectivity (ICMP protocol)
✔✔arp -a - ✔✔Shows ip address to mac address
✔✔tracert/traceroute - ✔✔Shows hops/routers along route maximum 30 hops
✔✔netstat (network statistics) - ✔✔Show ports local/external and incoming connections
✔✔nslookup - ✔✔Used to determine the DNS settings on a client computer
✔✔Wins - ✔✔Windows Internet Name Service resolves NetBIOS to IP addresses
✔✔IPSec (Internet Protocol Security) - ✔✔Data confidentiality and integrity
