CH5-Network Protocols

Question 1

Resolves and IP to a MAC address

Answer 1

ARP (Address Resolution Protocol) - Internetwork protocol using a broadcast frame containing the targets host IP and host returns MAC address

Question 2

Type of address that is automatically assigned when no DHCP server can be contacted

Answer 2

APIPA (Automatic Private IP addressing) - private range of IP addresses

Question 3

Unit of information used by UDP in the transport layer

Answer 3

Datagram - passed up to application layer as data/ passed down as packet to internetwork layer

Question 4

Resolves computer names to IP addresses

Answer 4

DNS (Domain name system) - UDP port 53 in Application layer

Question 5

dynamically assigns IP addresses

Answer 5

DHCP (Dynamic host configuration protocol) - UDP port 67, 68 in Application layer

Question 6

Specifies the source or destination Application layer protocol

Answer 6

Port number - field in Transport layer

Question 7

An extension to the IP working at the Internetwork layer that provides security by using authentication and encryption

Answer 7

IPsec (Internet Protocol security) -

Question 8

Data contained in a DNS zone

Answer 8

resource record - host and MX, NS records

Question 9

Secure application layer protocol across internet via Command line interface

Answer 9

SSH (Secure shell) - tcp port 22

Question 10

Transport layer protocol that is connection oriented and reliable

Answer 10

TCP (Transmission control protocol) - contemporary OS and Internet

Question 11

Unsecure Application layer protocol used to connect a device across a network via Command line interface

Answer 11

Telnet - tcp port 23

Question 12

Transport layer protocol that is connectionless

Answer 12

UDP (User datagram protocol) - small amounts of data