IP network services 3.4

Question 1

DHCP Scope

Answer 1

IP address range, and excluded addresses with subnet mask

Question 2

Dynamic assignment

Answer 2

Lease addresses from period, can be reclaimed

Question 3

Automatic assignment

Answer 3

DHCP keeps past assignments and will always give the same addresses to the same devices

Question 4

Address reservation

Answer 4

Administrative config, each mac address has IP address. Also known as Static DHCP or IP reservation

Question 5

DHCP lease

Answer 5

Temporary assignment of IP address by DHCP. Times out or can be manually released.

Question 6

Stateless addressing

Answer 6

No DHCP server, no tracking mac or IP, no lease time

Question 7

NDP

Answer 7

No broadcast, neighbor MAC discovery instead of ARP tables

Question 8

SLAAC

Answer 8

Stateless address autoconfig; automatically configure an IP addr without dhcp server

Question 9

DNS

Answer 9

Domain Name System, website name that’s linked to IP address

Question 10

FQDN

Answer 10

Fully qualified domain name, complete web address in DNS hierarchy

Question 11

Primary DNS server

Answer 11

Contains all zone information, modifications are made to primary server

Question 12

Secondary DNS server

Answer 12

Zone info is read only, modifications are pushed by primary DNS server

Question 13

Local name resolution

Answer 13

Override DNS with local name resolution

Question 14

Forward lookup

Answer 14

Provide DNS server with FQDN, DNS gives IP address

Question 15

Reverse lookup

Answer 15

Provide DNS server with IP address, DNS gives FQDN

Question 16

NTP

Answer 16

Internal clock inside of all devices to synchronize information. Automatic or configurable. udp/123

Question 17

NTS

Answer 17

Prevent attacks by giving wrong time. TLS handshake with NTS-KE server.

Question 18

PTP

Answer 18

Precision time protocol on specialized hardware, like robotics